| Target . | Visorsat . | Visorsat . | Visorsat . | STARLINK-1113 . |
|---|---|---|---|---|
| Observation date | 2021 Feb 14 | 2021 Feb 15 | 2021 Mar 14 | 2021 Feb 5 |
| Telescope | Murikabushi | Murikabushi | Murikabushi | Murikabushi |
| Instrument | MITSuME | MITSuME | MITSuME | MITSuME |
| Filter(s) | g′, RC, IC | g′, RC, IC | g′, RC, IC | g′, RC, IC |
| Start time of observation (UTC) | 21:40:57 | 21:33:27 | 12:03:17 | 11:10:27 |
| Central time of observation (UTC) | 21:41:00 | 21:33:30 | 12:03:20 | 11:10:30 |
| End time of observation (UTC) | 21:41:02 | 21:33:32 | 12:03:22 | 11:10:32 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 5.0 |
| RA | |${17^{\rm h}53^{\rm m}52{^{\rm s}_{.}}5}$| | |${14^{\rm h}13^{\rm m}33{^{\rm s}_{.}}94}$| | |${02^{\rm h}35^{\rm m}05{^{\rm s}_{.}}7}$| | |${02^{\rm h}45^{\rm m}14{^{\rm s}_{.}}2}$| |
| Dec | +|${02^{\circ}04^{\prime }06^{\prime \prime }_{.}8}$| | +|${21^{\circ}39^{\prime }01^{\prime \prime }_{.}7}$| | +|${34^{\circ}23^{\prime }55^{\prime \prime }_{.}4}$| | −|${16^{\circ}09^{\prime }41^{\prime \prime }_{.}9}$| |
| Azimuth (°) | 61.6 | 265.3 | 299.0 | 214.7 |
| Elevation (°) | 50.3 | 71.4 | 22.8 | 42.2 |
| Airmass | 1.30 | 1.05 | 2.55 | 1.48 |
| D† (km) | 694.54 | 575.51 | 1189.77 | 781.42 |
| Solar phase angle (°) | 118.7 | 61.4 | 124.4 | 101.5 |
| Observer phase angle (°) | 61.3 | 118.6 | 55.6 | 78.4 |
| Angular velocity (arcsec s−1) | 1826.78 ± 49.04 | 2587.01 ± 26.01 | 812.41 ± 16.89 | 1417.02 ± 41.15 |
| Target | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 | Visorsat |
| Observation date | 2021 Mar 17 | 2021 Mar 18 | 2021 Mar 22 | 2021 Nov 11 |
| Telescope | Akeno 50 cm | Akeno 50 cm | Akeno 50 cm | Akeno 50 cm |
| Instrument | MITSuME | MITSuME | MITSuME | MITSuME |
| Filter(s) | g′, RC, IC | g′, RC, IC | g′, RC, IC | g′, RC, IC |
| Start time of observation (UTC) | 19:53:58 | 19:48:28 | 19:26:58 | 09:12:28 |
| Central time of observation (UTC) | 19:54:00 | 19:48:30 | 19:27:00 | 09:12:30 |
| End time of observation (UTC) | 19:54:03 | 19:48:33 | 19:27:03 | 09:12:33 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 5.0 |
| RA | |${18^{\rm h}26^{\rm m}36{^{\rm s}_{.}}3}$| | |${17^{\rm h}27^{\rm m}46{^{\rm s}_{.}}3}$| | |${10^{\rm h}41^{\rm m}52{^{\rm s}_{.}}5}$| | |${23^{\rm h}37^{\rm m}43{^{\rm s}_{.}}5}$| |
| Dec | |${-02^{\circ}11^{\prime }27^{\prime \prime }_{.}6}$| | +|${14^{\circ}02^{\prime }19^{\prime \prime }_{.}3}$| | +|${66^{\circ}20^{\prime }40^{\prime \prime }_{.}9}$| | |${-18^{\circ}41^{\prime }37^{\prime \prime }_{.}5}$| |
| Azimuth (°) | 143.8 | 155.1 | 331.5 | 149.9 |
| Elevation (°) | 45.8 | 66.5 | 32.4 | 29.8 |
| Airmass | 1.40 | 1.09 | 1.86 | 2.08 |
| D† (km) | 781.42 | 595.91 | 944.37 | 993.21 |
| Solar phase angle (°) | 99.3 | 83.7 | 68.9 | 62.6 |
| Observer phase angle (°) | 80.7 | 96.3 | 111.1 | 117.4 |
| Angular velocity (arcsec s−1) | 2021.02 ± 13.43 | 2510.70 ± 19.97 | 1582.80 ± 5.74 | 1461.82 ± 14.7 |
| Target | Visorsat | Visorsat | Visorsat | Visorsat |
| Observation date | 2022 Jan 17 | 2021 Mar 15 | 2021 Mar 15 | 2022 Jan 17 |
| Telescope | Akeno 50 cm | Kanata | Kanata | Kanata |
| Instrument | MITSuME | HONIR‡ | HONIR‡ | HONIR‡ |
| Filter(s) | g′, RC, IC | V | H | V |
| Start time of observation (UTC) | 9:27:58 | 10:19:52 | 10:19:52 | 9:26:54 |
| Central time of observation (UTC) | 9:28:00 | 10:20:02 | 10:19:55 | 9:27:04 |
| End time of observation (UTC) | 9:28:03 | 10:20:12 | 10:19:57 | 9:27:14 |
| Exposure time (s) | 5.0 | 20.0 | 5.0 | 20.0 |
| RA | |${00^{\rm h}06^{\rm m}52{^{\rm s}_{.}}27}$| | |${07^{\rm h}00^{\rm m}34{^{\rm s}_{.}}15}$| | |${06^{\rm h}49^{\rm m}6{^{\rm s}_{.}}8}$| | |${01^{\rm h}12^{\rm m}24{^{\rm s}_{.}}5}$| |
| Dec | |${-10^{\circ}22^{\prime }29^{\prime \prime }_{.}6}$| | |${-04^{\circ}07^{\prime }00^{\prime \prime }_{.}6}$| | |${-01^{\circ}26^{\prime }45^{\prime \prime }_{.}7}$| | |${-19^{\circ}19^{\prime }29^{\prime \prime }_{.}9}$| |
| Azimuth (°) | 222.4 | 173.0 | 177.4 | 195.0 |
| Elevation (°) | 34.0 | 51.3 | 54.1 | 35.0 |
| Airmass | 1.63 | 1.26 | 1.26 | 1.79 |
| D† (km) | 906.24 | 685.40 | 662.76 | 937.95 |
| Solar phase angle (°) | 118.2 | 70.3 | 73.0 | 106.6 |
| Observer phase angle (°) | 61.8 | 109.7 | 107.0 | 73.3 |
| Angular velocity (arcsec s−1) | 1080.83 ± 29.46 | 1963.23 ± 182.15 | 2080.71 ± 44.71 | 1259.71 ± 128.12 |
| Observation date | 2022 Jan 17 | 2022 Jan 19 | 2022 Jan 19 | 2021 Mar 19 |
| Telescope | Kanata | Kanata | Kanata | Kanata |
| Instrument | HONIR‡ | HONIR‡ | HONIR‡ | HONIR‡ |
| Filter(s) | H | B | H | V |
| Start time of observation (UTC) | 09:26:54 | 09:14:53 | 09:14:53 | 19:42:21 |
| Central time of observation (UTC) | 09:26:57 | 09:15:03 | 09:14:56 | 19:42:31 |
| End time of observation (UTC) | 09:26:59 | 09:15:13 | 09:14:58 | 19:42:41 |
| Exposure time (s) | 5.0 | 20.0 | 5.0 | 20.0 |
| RA | |${01^{\rm h}04^{\rm m}2{^{\rm s}_{.}}8}$| | |${23^{\rm h}20^{\rm m}55{^{\rm s}_{.}}1}$| | |${23^{\rm h}14^{\rm m}51{^{\rm s}_{.}}3}$| | |${18^{\rm h}50^{\rm m}00{^{\rm s}_{.}}1}$| |
| Dec | |${-20^{\circ}55^{\prime }37^{\prime \prime }}$| | +|${17^{\circ}10^{\prime }26^{\prime \prime }_{.}7}$| | +|${13^{\circ}42^{\prime }20^{\prime \prime }}$| | +|${29^{\circ}50^{\prime }25^{\prime \prime }_{.}0}$| |
| Azimuth (°) | 196.8 | 254.5 | 251.5 | 88.0 |
| Elevation (°) | 33.0 | 50.7 | 47.5 | 58.7 |
| Airmass | 1.79 | 1.31 | 1.32 | 1.16 |
| D† (km) | 925.08 | 690.72 | 720.08 | 635.29 |
| Solar phase angle (°) | 108.8 | 118.9 | 122.1 | 101.3 |
| Observer phase angle (°) | 71.2 | 61.1 | 57.9 | 78.7 |
| Angular velocity (arcsec s−1) | 1167.52 ± 29.5 | 1872.82 ± 189.03 | 1731.73 ± 46.05 | 2244.87 ± 167.29 |
| Target | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 |
| Observation date | 2021 Mar 19 | 2021 Mar 22 | 2022 Jan 24 | 2022 Jan 24 |
| Telescope | Kanata | Kanata | Kanata | Kanata |
| Instrument | HONIR | HONIR | HONIR | HONIR |
| Filter(s) | H | V | B | H |
| Start time of observation (UTC) | 19:42:21 | 19:26:42 | 10:34:55 | 10:34:55 |
| Central time of observation (UTC) | 19:42:24 | 19:26:52 | 10:35:05 | 10:34:58 |
| End time of observation (UTC) | 19:42:26 | 19:27:02 | 10:35:15 | 10:35:00 |
| Exposure time (s) | 5.0 | 20.0 | 20.0 | 5.0 |
| RA | |${18^{\rm h}31^{\rm m}29{^{\rm s}_{.}}2}$| | |${00^{\rm h}17^{\rm m}23{^{\rm s}_{.}}4}$| | |${23^{\rm h}24^{\rm m}30{^{\rm s}_{.}}6}$| | |${23^{\rm h}09^{\rm m}23{^{\rm s}_{.}}1}$| |
| Dec | +|${27^{\circ}18^{\prime }09^{\prime \prime }_{.}7}$| | +|${83^{\circ}41^{\prime }59^{\prime \prime }_{.}3}$| | +|${42^{\circ}57^{\prime }26^{\prime \prime }_{.}5}$| | +|${43^{\circ}22^{\prime }14^{\prime \prime }}$| |
| Azimuth (°) | 95.6 | 6.28 | 300.2 | 301.6 |
| Elevation (°) | 61.6 | 31.2 | 40.6 | 38.0 |
| Airmass | 1.16 | 1.90 | 1.59 | 1.59 |
| D† (km) | 618.8 | 970.8 | 805.8 | 843.3 |
| Solar phase angle (°) | 97.5 | 97.1 | 105.5 | 107.0 |
| Observer phase angle (°) | 82.5 | 82.9 | 74.5 | 73.0 |
| Angular velocity (arcsec s−1) | 2359.22 ± 40.87 | 1281.29 ± 100.82 | 1391.29 ± 155.07 | 1279.96 ± 35.33 |
| Target | Visorsat | STARLINK-1113 | Visorsat | Visorsat |
| Observation date | 2021 Feb 15 | 2021 Nov 2 | 2021 Mar 11 | 2021 Mar 15 |
| Telescope | Nayuta | Nayuta | SaCRA | SaCRA |
| Instrument | NIC | NIC | MuSaSHI | MuSaSHI |
| Filter(s) | J, H, Ks | J, H, Ks | r, i, |$z$| | r, i, |$z$| |
| Start time of observation (UTC) | 19:54:57 | 09:07:02 | 10:43:28 | 10:19:59 |
| Central time of observation (UTC) | 19:55:00 | 09:07:05 | 10:43:31 | 10:20:00 |
| End time of observation (UTC) | 19:55:02 | 09:07:07 | 10:43:33 | 10:20:02 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 3.0 |
| RA | |${17^{\rm h}03^{\rm m}32{^{\rm s}_{.}}3}$| | |${17^{\rm h}13^{\rm m}31{^{\rm s}_{.}}0}$| | |${01^{\rm h}31^{\rm m}13{^{\rm s}_{.}}5}$| | |${04^{\rm h}22^{\rm m}21{^{\rm s}_{.}}9}$| |
| Dec | +|${03^{\circ}58^{\prime }59^{\prime \prime }_{.}4}$| | +|${02^{\circ}21^{\prime }12^{\prime \prime }_{.}2}$| | +|${62^{\circ}03^{\prime }51^{\prime \prime }_{.}9}$| | |${-10^{\circ}10^{\prime }59^{\prime \prime }_{.}8}$| |
| Azimuth (°) | 123.7 | 249.6 | 326.4 | 229.1 |
| Elevation (°) | 43.78 | 30.1 | 32.7 | 29.3 |
| Airmass | 1.44 | 1.99 | 1.85 | 2.03 |
| D† (km) | 761.3 | 992.20 | 940.74 | 1005.99 |
| Solar phase angle (°) | 105.3 | 136.0 | 110.4 | 109.7 |
| Observer phase angle (°) | 74.7 | 44.0 | 69.6 | 70.3 |
| Angular velocity (arcsec s−1) | 1509.96 ± 43.58 | 1027.67 ± 24.91 | 1065.11 ± 27.85 | 1506.41 ± 0.98 |
| Observation date | 2021 Nov 15 | 2021 Nov 17 | 2022 Jan 26 | 2021 Mar 9 |
| Telescope | SaCRA | SaCRA | SaCRA | Pirka |
| Instrument | MuSaSHI | MuSaSHI | MuSaSHI | MSI |
| Filter(s) | r, i, |$z$| | r, i, |$z$| | r, i, |$z$| | U |
| Start time of observation (UTC) | 08:46:59 | 08:35:00 | 08:47:59 | 09:16:57 |
| Central time of observation (UTC) | 08:47:00 | 08:35:01 | 08:48:00 | 09:17:00 |
| End time of observation (UTC) | 08:47:02 | 08:35:03 | 08:48:02 | 09:17:02 |
| Exposure time (s) | 3.0 | 3.0 | 3.0 | 5.0 |
| RA | |${18^{\rm h}21^{\rm m}04{^{\rm s}_{.}}2}$| | |${16^{\rm h}22^{\rm m}13{^{\rm s}_{.}}1}$| | |${06^{\rm h}02^{\rm m}53{^{\rm s}_{.}}1}$| | |${14^{\rm h}05^{\rm m}12{^{\rm s}_{.}}9}$| |
| Dec | +|${18^{\circ}37^{\prime \prime }06_{.}^{\prime }0}$| | +|${45^{\circ}36^{\prime }51^{\prime \prime }_{.}6}$| | +|${15^{\circ}13^{\prime }28^{\prime \prime }_{.}8}$| | +|${75^{\circ}09^{\prime }53^{\prime \prime }_{.}8}$| |
| Azimuth (°) | 262.7 | 306.1 | 98.8 | 15.5 |
| Elevation (°) | 42.5 | 32.0 | 38.0 | 35.2 |
| Airmass | 1.48 | 1.90 | 1.62 | 1.73 |
| D† (km) | 777.46 | 957.08 | 844.00 | 889.91 |
| Solar phase angle (°) | 122.5 | 114.3 | 36.2 | 74.6 |
| Observer phase angle (°) | 57.5 | 65.7 | 143.8 | 105.4 |
| Angular velocity (arcsec s−1) | 1603.68 ± 23.59 | 1524.99 ± 7.85 | 1417.83 ± 20.80 | 1683.70 ± 3.95 |
| Target | Visorsat | STARLINK-1113 | Visorsat | |
| Observation date | 2021 Mar 9 | 2021 Mar 19 | 2021 Feb 13 | |
| Telescope | Pirka | Pirka | PROMPT-6 | |
| Instrument | MSI | MSI | FLI PL23042 | |
| Filter(s) | U | U | V | |
| Start time of observation (UTC) | 10:55:07 | 19:45:17 | 00:20:00 | |
| Central time of observation (UTC) | 10:55:10 | 19:45:20 | — | |
| End time of observation (UTC) | 10:55:12 | 19:45:22 | — | |
| Exposure time (s) | 5.0 | 5.0 | 0.2 | |
| RA | |${02^{\rm h}34^{\rm m}12{^{\rm s}_{.}}2}$| | |${18^{\rm h}41^{\rm m}12{^{\rm s}_{.}}2}$| | |${02^{\rm h}50^{\rm m}33{^{\rm s}_{.}}6}$| | |
| Dec | +|${32^{\circ}39^{\prime }18^{\prime \prime }_{.}9}$| | +|${19^{\circ}16^{\prime }29^{\prime \prime }_{.}6}$| | +|${41^{\circ}34^{\prime }36^{\prime \prime }_{.}3}$| | |
| Azimuth (°) | 286.0 | 142.3 | 334.4 | |
| Elevation (°) | 32.4 | 49.1 | 11.4 | |
| Airmass | 1.86 | 1.32 | 4.89 | |
| D† (km) | 942.26 | 709.73 | 1719.79 | |
| Solar phase angle (°) | 120.7 | 100.6 | 91.16 | |
| Observer phase angle (°) | 59.3 | 79.4 | 88.83 | |
| Angular velocity (arcsec s−1) | 1120.81 ± 28.12 | 2132.09 ± 3.19 | 784.88 |
| Target . | Visorsat . | Visorsat . | Visorsat . | STARLINK-1113 . |
|---|---|---|---|---|
| Observation date | 2021 Feb 14 | 2021 Feb 15 | 2021 Mar 14 | 2021 Feb 5 |
| Telescope | Murikabushi | Murikabushi | Murikabushi | Murikabushi |
| Instrument | MITSuME | MITSuME | MITSuME | MITSuME |
| Filter(s) | g′, RC, IC | g′, RC, IC | g′, RC, IC | g′, RC, IC |
| Start time of observation (UTC) | 21:40:57 | 21:33:27 | 12:03:17 | 11:10:27 |
| Central time of observation (UTC) | 21:41:00 | 21:33:30 | 12:03:20 | 11:10:30 |
| End time of observation (UTC) | 21:41:02 | 21:33:32 | 12:03:22 | 11:10:32 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 5.0 |
| RA | |${17^{\rm h}53^{\rm m}52{^{\rm s}_{.}}5}$| | |${14^{\rm h}13^{\rm m}33{^{\rm s}_{.}}94}$| | |${02^{\rm h}35^{\rm m}05{^{\rm s}_{.}}7}$| | |${02^{\rm h}45^{\rm m}14{^{\rm s}_{.}}2}$| |
| Dec | +|${02^{\circ}04^{\prime }06^{\prime \prime }_{.}8}$| | +|${21^{\circ}39^{\prime }01^{\prime \prime }_{.}7}$| | +|${34^{\circ}23^{\prime }55^{\prime \prime }_{.}4}$| | −|${16^{\circ}09^{\prime }41^{\prime \prime }_{.}9}$| |
| Azimuth (°) | 61.6 | 265.3 | 299.0 | 214.7 |
| Elevation (°) | 50.3 | 71.4 | 22.8 | 42.2 |
| Airmass | 1.30 | 1.05 | 2.55 | 1.48 |
| D† (km) | 694.54 | 575.51 | 1189.77 | 781.42 |
| Solar phase angle (°) | 118.7 | 61.4 | 124.4 | 101.5 |
| Observer phase angle (°) | 61.3 | 118.6 | 55.6 | 78.4 |
| Angular velocity (arcsec s−1) | 1826.78 ± 49.04 | 2587.01 ± 26.01 | 812.41 ± 16.89 | 1417.02 ± 41.15 |
| Target | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 | Visorsat |
| Observation date | 2021 Mar 17 | 2021 Mar 18 | 2021 Mar 22 | 2021 Nov 11 |
| Telescope | Akeno 50 cm | Akeno 50 cm | Akeno 50 cm | Akeno 50 cm |
| Instrument | MITSuME | MITSuME | MITSuME | MITSuME |
| Filter(s) | g′, RC, IC | g′, RC, IC | g′, RC, IC | g′, RC, IC |
| Start time of observation (UTC) | 19:53:58 | 19:48:28 | 19:26:58 | 09:12:28 |
| Central time of observation (UTC) | 19:54:00 | 19:48:30 | 19:27:00 | 09:12:30 |
| End time of observation (UTC) | 19:54:03 | 19:48:33 | 19:27:03 | 09:12:33 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 5.0 |
| RA | |${18^{\rm h}26^{\rm m}36{^{\rm s}_{.}}3}$| | |${17^{\rm h}27^{\rm m}46{^{\rm s}_{.}}3}$| | |${10^{\rm h}41^{\rm m}52{^{\rm s}_{.}}5}$| | |${23^{\rm h}37^{\rm m}43{^{\rm s}_{.}}5}$| |
| Dec | |${-02^{\circ}11^{\prime }27^{\prime \prime }_{.}6}$| | +|${14^{\circ}02^{\prime }19^{\prime \prime }_{.}3}$| | +|${66^{\circ}20^{\prime }40^{\prime \prime }_{.}9}$| | |${-18^{\circ}41^{\prime }37^{\prime \prime }_{.}5}$| |
| Azimuth (°) | 143.8 | 155.1 | 331.5 | 149.9 |
| Elevation (°) | 45.8 | 66.5 | 32.4 | 29.8 |
| Airmass | 1.40 | 1.09 | 1.86 | 2.08 |
| D† (km) | 781.42 | 595.91 | 944.37 | 993.21 |
| Solar phase angle (°) | 99.3 | 83.7 | 68.9 | 62.6 |
| Observer phase angle (°) | 80.7 | 96.3 | 111.1 | 117.4 |
| Angular velocity (arcsec s−1) | 2021.02 ± 13.43 | 2510.70 ± 19.97 | 1582.80 ± 5.74 | 1461.82 ± 14.7 |
| Target | Visorsat | Visorsat | Visorsat | Visorsat |
| Observation date | 2022 Jan 17 | 2021 Mar 15 | 2021 Mar 15 | 2022 Jan 17 |
| Telescope | Akeno 50 cm | Kanata | Kanata | Kanata |
| Instrument | MITSuME | HONIR‡ | HONIR‡ | HONIR‡ |
| Filter(s) | g′, RC, IC | V | H | V |
| Start time of observation (UTC) | 9:27:58 | 10:19:52 | 10:19:52 | 9:26:54 |
| Central time of observation (UTC) | 9:28:00 | 10:20:02 | 10:19:55 | 9:27:04 |
| End time of observation (UTC) | 9:28:03 | 10:20:12 | 10:19:57 | 9:27:14 |
| Exposure time (s) | 5.0 | 20.0 | 5.0 | 20.0 |
| RA | |${00^{\rm h}06^{\rm m}52{^{\rm s}_{.}}27}$| | |${07^{\rm h}00^{\rm m}34{^{\rm s}_{.}}15}$| | |${06^{\rm h}49^{\rm m}6{^{\rm s}_{.}}8}$| | |${01^{\rm h}12^{\rm m}24{^{\rm s}_{.}}5}$| |
| Dec | |${-10^{\circ}22^{\prime }29^{\prime \prime }_{.}6}$| | |${-04^{\circ}07^{\prime }00^{\prime \prime }_{.}6}$| | |${-01^{\circ}26^{\prime }45^{\prime \prime }_{.}7}$| | |${-19^{\circ}19^{\prime }29^{\prime \prime }_{.}9}$| |
| Azimuth (°) | 222.4 | 173.0 | 177.4 | 195.0 |
| Elevation (°) | 34.0 | 51.3 | 54.1 | 35.0 |
| Airmass | 1.63 | 1.26 | 1.26 | 1.79 |
| D† (km) | 906.24 | 685.40 | 662.76 | 937.95 |
| Solar phase angle (°) | 118.2 | 70.3 | 73.0 | 106.6 |
| Observer phase angle (°) | 61.8 | 109.7 | 107.0 | 73.3 |
| Angular velocity (arcsec s−1) | 1080.83 ± 29.46 | 1963.23 ± 182.15 | 2080.71 ± 44.71 | 1259.71 ± 128.12 |
| Observation date | 2022 Jan 17 | 2022 Jan 19 | 2022 Jan 19 | 2021 Mar 19 |
| Telescope | Kanata | Kanata | Kanata | Kanata |
| Instrument | HONIR‡ | HONIR‡ | HONIR‡ | HONIR‡ |
| Filter(s) | H | B | H | V |
| Start time of observation (UTC) | 09:26:54 | 09:14:53 | 09:14:53 | 19:42:21 |
| Central time of observation (UTC) | 09:26:57 | 09:15:03 | 09:14:56 | 19:42:31 |
| End time of observation (UTC) | 09:26:59 | 09:15:13 | 09:14:58 | 19:42:41 |
| Exposure time (s) | 5.0 | 20.0 | 5.0 | 20.0 |
| RA | |${01^{\rm h}04^{\rm m}2{^{\rm s}_{.}}8}$| | |${23^{\rm h}20^{\rm m}55{^{\rm s}_{.}}1}$| | |${23^{\rm h}14^{\rm m}51{^{\rm s}_{.}}3}$| | |${18^{\rm h}50^{\rm m}00{^{\rm s}_{.}}1}$| |
| Dec | |${-20^{\circ}55^{\prime }37^{\prime \prime }}$| | +|${17^{\circ}10^{\prime }26^{\prime \prime }_{.}7}$| | +|${13^{\circ}42^{\prime }20^{\prime \prime }}$| | +|${29^{\circ}50^{\prime }25^{\prime \prime }_{.}0}$| |
| Azimuth (°) | 196.8 | 254.5 | 251.5 | 88.0 |
| Elevation (°) | 33.0 | 50.7 | 47.5 | 58.7 |
| Airmass | 1.79 | 1.31 | 1.32 | 1.16 |
| D† (km) | 925.08 | 690.72 | 720.08 | 635.29 |
| Solar phase angle (°) | 108.8 | 118.9 | 122.1 | 101.3 |
| Observer phase angle (°) | 71.2 | 61.1 | 57.9 | 78.7 |
| Angular velocity (arcsec s−1) | 1167.52 ± 29.5 | 1872.82 ± 189.03 | 1731.73 ± 46.05 | 2244.87 ± 167.29 |
| Target | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 |
| Observation date | 2021 Mar 19 | 2021 Mar 22 | 2022 Jan 24 | 2022 Jan 24 |
| Telescope | Kanata | Kanata | Kanata | Kanata |
| Instrument | HONIR | HONIR | HONIR | HONIR |
| Filter(s) | H | V | B | H |
| Start time of observation (UTC) | 19:42:21 | 19:26:42 | 10:34:55 | 10:34:55 |
| Central time of observation (UTC) | 19:42:24 | 19:26:52 | 10:35:05 | 10:34:58 |
| End time of observation (UTC) | 19:42:26 | 19:27:02 | 10:35:15 | 10:35:00 |
| Exposure time (s) | 5.0 | 20.0 | 20.0 | 5.0 |
| RA | |${18^{\rm h}31^{\rm m}29{^{\rm s}_{.}}2}$| | |${00^{\rm h}17^{\rm m}23{^{\rm s}_{.}}4}$| | |${23^{\rm h}24^{\rm m}30{^{\rm s}_{.}}6}$| | |${23^{\rm h}09^{\rm m}23{^{\rm s}_{.}}1}$| |
| Dec | +|${27^{\circ}18^{\prime }09^{\prime \prime }_{.}7}$| | +|${83^{\circ}41^{\prime }59^{\prime \prime }_{.}3}$| | +|${42^{\circ}57^{\prime }26^{\prime \prime }_{.}5}$| | +|${43^{\circ}22^{\prime }14^{\prime \prime }}$| |
| Azimuth (°) | 95.6 | 6.28 | 300.2 | 301.6 |
| Elevation (°) | 61.6 | 31.2 | 40.6 | 38.0 |
| Airmass | 1.16 | 1.90 | 1.59 | 1.59 |
| D† (km) | 618.8 | 970.8 | 805.8 | 843.3 |
| Solar phase angle (°) | 97.5 | 97.1 | 105.5 | 107.0 |
| Observer phase angle (°) | 82.5 | 82.9 | 74.5 | 73.0 |
| Angular velocity (arcsec s−1) | 2359.22 ± 40.87 | 1281.29 ± 100.82 | 1391.29 ± 155.07 | 1279.96 ± 35.33 |
| Target | Visorsat | STARLINK-1113 | Visorsat | Visorsat |
| Observation date | 2021 Feb 15 | 2021 Nov 2 | 2021 Mar 11 | 2021 Mar 15 |
| Telescope | Nayuta | Nayuta | SaCRA | SaCRA |
| Instrument | NIC | NIC | MuSaSHI | MuSaSHI |
| Filter(s) | J, H, Ks | J, H, Ks | r, i, |$z$| | r, i, |$z$| |
| Start time of observation (UTC) | 19:54:57 | 09:07:02 | 10:43:28 | 10:19:59 |
| Central time of observation (UTC) | 19:55:00 | 09:07:05 | 10:43:31 | 10:20:00 |
| End time of observation (UTC) | 19:55:02 | 09:07:07 | 10:43:33 | 10:20:02 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 3.0 |
| RA | |${17^{\rm h}03^{\rm m}32{^{\rm s}_{.}}3}$| | |${17^{\rm h}13^{\rm m}31{^{\rm s}_{.}}0}$| | |${01^{\rm h}31^{\rm m}13{^{\rm s}_{.}}5}$| | |${04^{\rm h}22^{\rm m}21{^{\rm s}_{.}}9}$| |
| Dec | +|${03^{\circ}58^{\prime }59^{\prime \prime }_{.}4}$| | +|${02^{\circ}21^{\prime }12^{\prime \prime }_{.}2}$| | +|${62^{\circ}03^{\prime }51^{\prime \prime }_{.}9}$| | |${-10^{\circ}10^{\prime }59^{\prime \prime }_{.}8}$| |
| Azimuth (°) | 123.7 | 249.6 | 326.4 | 229.1 |
| Elevation (°) | 43.78 | 30.1 | 32.7 | 29.3 |
| Airmass | 1.44 | 1.99 | 1.85 | 2.03 |
| D† (km) | 761.3 | 992.20 | 940.74 | 1005.99 |
| Solar phase angle (°) | 105.3 | 136.0 | 110.4 | 109.7 |
| Observer phase angle (°) | 74.7 | 44.0 | 69.6 | 70.3 |
| Angular velocity (arcsec s−1) | 1509.96 ± 43.58 | 1027.67 ± 24.91 | 1065.11 ± 27.85 | 1506.41 ± 0.98 |
| Observation date | 2021 Nov 15 | 2021 Nov 17 | 2022 Jan 26 | 2021 Mar 9 |
| Telescope | SaCRA | SaCRA | SaCRA | Pirka |
| Instrument | MuSaSHI | MuSaSHI | MuSaSHI | MSI |
| Filter(s) | r, i, |$z$| | r, i, |$z$| | r, i, |$z$| | U |
| Start time of observation (UTC) | 08:46:59 | 08:35:00 | 08:47:59 | 09:16:57 |
| Central time of observation (UTC) | 08:47:00 | 08:35:01 | 08:48:00 | 09:17:00 |
| End time of observation (UTC) | 08:47:02 | 08:35:03 | 08:48:02 | 09:17:02 |
| Exposure time (s) | 3.0 | 3.0 | 3.0 | 5.0 |
| RA | |${18^{\rm h}21^{\rm m}04{^{\rm s}_{.}}2}$| | |${16^{\rm h}22^{\rm m}13{^{\rm s}_{.}}1}$| | |${06^{\rm h}02^{\rm m}53{^{\rm s}_{.}}1}$| | |${14^{\rm h}05^{\rm m}12{^{\rm s}_{.}}9}$| |
| Dec | +|${18^{\circ}37^{\prime \prime }06_{.}^{\prime }0}$| | +|${45^{\circ}36^{\prime }51^{\prime \prime }_{.}6}$| | +|${15^{\circ}13^{\prime }28^{\prime \prime }_{.}8}$| | +|${75^{\circ}09^{\prime }53^{\prime \prime }_{.}8}$| |
| Azimuth (°) | 262.7 | 306.1 | 98.8 | 15.5 |
| Elevation (°) | 42.5 | 32.0 | 38.0 | 35.2 |
| Airmass | 1.48 | 1.90 | 1.62 | 1.73 |
| D† (km) | 777.46 | 957.08 | 844.00 | 889.91 |
| Solar phase angle (°) | 122.5 | 114.3 | 36.2 | 74.6 |
| Observer phase angle (°) | 57.5 | 65.7 | 143.8 | 105.4 |
| Angular velocity (arcsec s−1) | 1603.68 ± 23.59 | 1524.99 ± 7.85 | 1417.83 ± 20.80 | 1683.70 ± 3.95 |
| Target | Visorsat | STARLINK-1113 | Visorsat | |
| Observation date | 2021 Mar 9 | 2021 Mar 19 | 2021 Feb 13 | |
| Telescope | Pirka | Pirka | PROMPT-6 | |
| Instrument | MSI | MSI | FLI PL23042 | |
| Filter(s) | U | U | V | |
| Start time of observation (UTC) | 10:55:07 | 19:45:17 | 00:20:00 | |
| Central time of observation (UTC) | 10:55:10 | 19:45:20 | — | |
| End time of observation (UTC) | 10:55:12 | 19:45:22 | — | |
| Exposure time (s) | 5.0 | 5.0 | 0.2 | |
| RA | |${02^{\rm h}34^{\rm m}12{^{\rm s}_{.}}2}$| | |${18^{\rm h}41^{\rm m}12{^{\rm s}_{.}}2}$| | |${02^{\rm h}50^{\rm m}33{^{\rm s}_{.}}6}$| | |
| Dec | +|${32^{\circ}39^{\prime }18^{\prime \prime }_{.}9}$| | +|${19^{\circ}16^{\prime }29^{\prime \prime }_{.}6}$| | +|${41^{\circ}34^{\prime }36^{\prime \prime }_{.}3}$| | |
| Azimuth (°) | 286.0 | 142.3 | 334.4 | |
| Elevation (°) | 32.4 | 49.1 | 11.4 | |
| Airmass | 1.86 | 1.32 | 4.89 | |
| D† (km) | 942.26 | 709.73 | 1719.79 | |
| Solar phase angle (°) | 120.7 | 100.6 | 91.16 | |
| Observer phase angle (°) | 59.3 | 79.4 | 88.83 | |
| Angular velocity (arcsec s−1) | 1120.81 ± 28.12 | 2132.09 ± 3.19 | 784.88 |
RA, Dec, azimuth, elevation, airmass, D, solar phase angle, and observer phase angle are values at the central exposure time.
Distance between satellite and observer.
The difference in the imaging system between the HONIR V or B and H passbands gives the differences in exposure times, RA and Dec at a central exposure time, and so on.
| Target . | Visorsat . | Visorsat . | Visorsat . | STARLINK-1113 . |
|---|---|---|---|---|
| Observation date | 2021 Feb 14 | 2021 Feb 15 | 2021 Mar 14 | 2021 Feb 5 |
| Telescope | Murikabushi | Murikabushi | Murikabushi | Murikabushi |
| Instrument | MITSuME | MITSuME | MITSuME | MITSuME |
| Filter(s) | g′, RC, IC | g′, RC, IC | g′, RC, IC | g′, RC, IC |
| Start time of observation (UTC) | 21:40:57 | 21:33:27 | 12:03:17 | 11:10:27 |
| Central time of observation (UTC) | 21:41:00 | 21:33:30 | 12:03:20 | 11:10:30 |
| End time of observation (UTC) | 21:41:02 | 21:33:32 | 12:03:22 | 11:10:32 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 5.0 |
| RA | |${17^{\rm h}53^{\rm m}52{^{\rm s}_{.}}5}$| | |${14^{\rm h}13^{\rm m}33{^{\rm s}_{.}}94}$| | |${02^{\rm h}35^{\rm m}05{^{\rm s}_{.}}7}$| | |${02^{\rm h}45^{\rm m}14{^{\rm s}_{.}}2}$| |
| Dec | +|${02^{\circ}04^{\prime }06^{\prime \prime }_{.}8}$| | +|${21^{\circ}39^{\prime }01^{\prime \prime }_{.}7}$| | +|${34^{\circ}23^{\prime }55^{\prime \prime }_{.}4}$| | −|${16^{\circ}09^{\prime }41^{\prime \prime }_{.}9}$| |
| Azimuth (°) | 61.6 | 265.3 | 299.0 | 214.7 |
| Elevation (°) | 50.3 | 71.4 | 22.8 | 42.2 |
| Airmass | 1.30 | 1.05 | 2.55 | 1.48 |
| D† (km) | 694.54 | 575.51 | 1189.77 | 781.42 |
| Solar phase angle (°) | 118.7 | 61.4 | 124.4 | 101.5 |
| Observer phase angle (°) | 61.3 | 118.6 | 55.6 | 78.4 |
| Angular velocity (arcsec s−1) | 1826.78 ± 49.04 | 2587.01 ± 26.01 | 812.41 ± 16.89 | 1417.02 ± 41.15 |
| Target | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 | Visorsat |
| Observation date | 2021 Mar 17 | 2021 Mar 18 | 2021 Mar 22 | 2021 Nov 11 |
| Telescope | Akeno 50 cm | Akeno 50 cm | Akeno 50 cm | Akeno 50 cm |
| Instrument | MITSuME | MITSuME | MITSuME | MITSuME |
| Filter(s) | g′, RC, IC | g′, RC, IC | g′, RC, IC | g′, RC, IC |
| Start time of observation (UTC) | 19:53:58 | 19:48:28 | 19:26:58 | 09:12:28 |
| Central time of observation (UTC) | 19:54:00 | 19:48:30 | 19:27:00 | 09:12:30 |
| End time of observation (UTC) | 19:54:03 | 19:48:33 | 19:27:03 | 09:12:33 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 5.0 |
| RA | |${18^{\rm h}26^{\rm m}36{^{\rm s}_{.}}3}$| | |${17^{\rm h}27^{\rm m}46{^{\rm s}_{.}}3}$| | |${10^{\rm h}41^{\rm m}52{^{\rm s}_{.}}5}$| | |${23^{\rm h}37^{\rm m}43{^{\rm s}_{.}}5}$| |
| Dec | |${-02^{\circ}11^{\prime }27^{\prime \prime }_{.}6}$| | +|${14^{\circ}02^{\prime }19^{\prime \prime }_{.}3}$| | +|${66^{\circ}20^{\prime }40^{\prime \prime }_{.}9}$| | |${-18^{\circ}41^{\prime }37^{\prime \prime }_{.}5}$| |
| Azimuth (°) | 143.8 | 155.1 | 331.5 | 149.9 |
| Elevation (°) | 45.8 | 66.5 | 32.4 | 29.8 |
| Airmass | 1.40 | 1.09 | 1.86 | 2.08 |
| D† (km) | 781.42 | 595.91 | 944.37 | 993.21 |
| Solar phase angle (°) | 99.3 | 83.7 | 68.9 | 62.6 |
| Observer phase angle (°) | 80.7 | 96.3 | 111.1 | 117.4 |
| Angular velocity (arcsec s−1) | 2021.02 ± 13.43 | 2510.70 ± 19.97 | 1582.80 ± 5.74 | 1461.82 ± 14.7 |
| Target | Visorsat | Visorsat | Visorsat | Visorsat |
| Observation date | 2022 Jan 17 | 2021 Mar 15 | 2021 Mar 15 | 2022 Jan 17 |
| Telescope | Akeno 50 cm | Kanata | Kanata | Kanata |
| Instrument | MITSuME | HONIR‡ | HONIR‡ | HONIR‡ |
| Filter(s) | g′, RC, IC | V | H | V |
| Start time of observation (UTC) | 9:27:58 | 10:19:52 | 10:19:52 | 9:26:54 |
| Central time of observation (UTC) | 9:28:00 | 10:20:02 | 10:19:55 | 9:27:04 |
| End time of observation (UTC) | 9:28:03 | 10:20:12 | 10:19:57 | 9:27:14 |
| Exposure time (s) | 5.0 | 20.0 | 5.0 | 20.0 |
| RA | |${00^{\rm h}06^{\rm m}52{^{\rm s}_{.}}27}$| | |${07^{\rm h}00^{\rm m}34{^{\rm s}_{.}}15}$| | |${06^{\rm h}49^{\rm m}6{^{\rm s}_{.}}8}$| | |${01^{\rm h}12^{\rm m}24{^{\rm s}_{.}}5}$| |
| Dec | |${-10^{\circ}22^{\prime }29^{\prime \prime }_{.}6}$| | |${-04^{\circ}07^{\prime }00^{\prime \prime }_{.}6}$| | |${-01^{\circ}26^{\prime }45^{\prime \prime }_{.}7}$| | |${-19^{\circ}19^{\prime }29^{\prime \prime }_{.}9}$| |
| Azimuth (°) | 222.4 | 173.0 | 177.4 | 195.0 |
| Elevation (°) | 34.0 | 51.3 | 54.1 | 35.0 |
| Airmass | 1.63 | 1.26 | 1.26 | 1.79 |
| D† (km) | 906.24 | 685.40 | 662.76 | 937.95 |
| Solar phase angle (°) | 118.2 | 70.3 | 73.0 | 106.6 |
| Observer phase angle (°) | 61.8 | 109.7 | 107.0 | 73.3 |
| Angular velocity (arcsec s−1) | 1080.83 ± 29.46 | 1963.23 ± 182.15 | 2080.71 ± 44.71 | 1259.71 ± 128.12 |
| Observation date | 2022 Jan 17 | 2022 Jan 19 | 2022 Jan 19 | 2021 Mar 19 |
| Telescope | Kanata | Kanata | Kanata | Kanata |
| Instrument | HONIR‡ | HONIR‡ | HONIR‡ | HONIR‡ |
| Filter(s) | H | B | H | V |
| Start time of observation (UTC) | 09:26:54 | 09:14:53 | 09:14:53 | 19:42:21 |
| Central time of observation (UTC) | 09:26:57 | 09:15:03 | 09:14:56 | 19:42:31 |
| End time of observation (UTC) | 09:26:59 | 09:15:13 | 09:14:58 | 19:42:41 |
| Exposure time (s) | 5.0 | 20.0 | 5.0 | 20.0 |
| RA | |${01^{\rm h}04^{\rm m}2{^{\rm s}_{.}}8}$| | |${23^{\rm h}20^{\rm m}55{^{\rm s}_{.}}1}$| | |${23^{\rm h}14^{\rm m}51{^{\rm s}_{.}}3}$| | |${18^{\rm h}50^{\rm m}00{^{\rm s}_{.}}1}$| |
| Dec | |${-20^{\circ}55^{\prime }37^{\prime \prime }}$| | +|${17^{\circ}10^{\prime }26^{\prime \prime }_{.}7}$| | +|${13^{\circ}42^{\prime }20^{\prime \prime }}$| | +|${29^{\circ}50^{\prime }25^{\prime \prime }_{.}0}$| |
| Azimuth (°) | 196.8 | 254.5 | 251.5 | 88.0 |
| Elevation (°) | 33.0 | 50.7 | 47.5 | 58.7 |
| Airmass | 1.79 | 1.31 | 1.32 | 1.16 |
| D† (km) | 925.08 | 690.72 | 720.08 | 635.29 |
| Solar phase angle (°) | 108.8 | 118.9 | 122.1 | 101.3 |
| Observer phase angle (°) | 71.2 | 61.1 | 57.9 | 78.7 |
| Angular velocity (arcsec s−1) | 1167.52 ± 29.5 | 1872.82 ± 189.03 | 1731.73 ± 46.05 | 2244.87 ± 167.29 |
| Target | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 |
| Observation date | 2021 Mar 19 | 2021 Mar 22 | 2022 Jan 24 | 2022 Jan 24 |
| Telescope | Kanata | Kanata | Kanata | Kanata |
| Instrument | HONIR | HONIR | HONIR | HONIR |
| Filter(s) | H | V | B | H |
| Start time of observation (UTC) | 19:42:21 | 19:26:42 | 10:34:55 | 10:34:55 |
| Central time of observation (UTC) | 19:42:24 | 19:26:52 | 10:35:05 | 10:34:58 |
| End time of observation (UTC) | 19:42:26 | 19:27:02 | 10:35:15 | 10:35:00 |
| Exposure time (s) | 5.0 | 20.0 | 20.0 | 5.0 |
| RA | |${18^{\rm h}31^{\rm m}29{^{\rm s}_{.}}2}$| | |${00^{\rm h}17^{\rm m}23{^{\rm s}_{.}}4}$| | |${23^{\rm h}24^{\rm m}30{^{\rm s}_{.}}6}$| | |${23^{\rm h}09^{\rm m}23{^{\rm s}_{.}}1}$| |
| Dec | +|${27^{\circ}18^{\prime }09^{\prime \prime }_{.}7}$| | +|${83^{\circ}41^{\prime }59^{\prime \prime }_{.}3}$| | +|${42^{\circ}57^{\prime }26^{\prime \prime }_{.}5}$| | +|${43^{\circ}22^{\prime }14^{\prime \prime }}$| |
| Azimuth (°) | 95.6 | 6.28 | 300.2 | 301.6 |
| Elevation (°) | 61.6 | 31.2 | 40.6 | 38.0 |
| Airmass | 1.16 | 1.90 | 1.59 | 1.59 |
| D† (km) | 618.8 | 970.8 | 805.8 | 843.3 |
| Solar phase angle (°) | 97.5 | 97.1 | 105.5 | 107.0 |
| Observer phase angle (°) | 82.5 | 82.9 | 74.5 | 73.0 |
| Angular velocity (arcsec s−1) | 2359.22 ± 40.87 | 1281.29 ± 100.82 | 1391.29 ± 155.07 | 1279.96 ± 35.33 |
| Target | Visorsat | STARLINK-1113 | Visorsat | Visorsat |
| Observation date | 2021 Feb 15 | 2021 Nov 2 | 2021 Mar 11 | 2021 Mar 15 |
| Telescope | Nayuta | Nayuta | SaCRA | SaCRA |
| Instrument | NIC | NIC | MuSaSHI | MuSaSHI |
| Filter(s) | J, H, Ks | J, H, Ks | r, i, |$z$| | r, i, |$z$| |
| Start time of observation (UTC) | 19:54:57 | 09:07:02 | 10:43:28 | 10:19:59 |
| Central time of observation (UTC) | 19:55:00 | 09:07:05 | 10:43:31 | 10:20:00 |
| End time of observation (UTC) | 19:55:02 | 09:07:07 | 10:43:33 | 10:20:02 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 3.0 |
| RA | |${17^{\rm h}03^{\rm m}32{^{\rm s}_{.}}3}$| | |${17^{\rm h}13^{\rm m}31{^{\rm s}_{.}}0}$| | |${01^{\rm h}31^{\rm m}13{^{\rm s}_{.}}5}$| | |${04^{\rm h}22^{\rm m}21{^{\rm s}_{.}}9}$| |
| Dec | +|${03^{\circ}58^{\prime }59^{\prime \prime }_{.}4}$| | +|${02^{\circ}21^{\prime }12^{\prime \prime }_{.}2}$| | +|${62^{\circ}03^{\prime }51^{\prime \prime }_{.}9}$| | |${-10^{\circ}10^{\prime }59^{\prime \prime }_{.}8}$| |
| Azimuth (°) | 123.7 | 249.6 | 326.4 | 229.1 |
| Elevation (°) | 43.78 | 30.1 | 32.7 | 29.3 |
| Airmass | 1.44 | 1.99 | 1.85 | 2.03 |
| D† (km) | 761.3 | 992.20 | 940.74 | 1005.99 |
| Solar phase angle (°) | 105.3 | 136.0 | 110.4 | 109.7 |
| Observer phase angle (°) | 74.7 | 44.0 | 69.6 | 70.3 |
| Angular velocity (arcsec s−1) | 1509.96 ± 43.58 | 1027.67 ± 24.91 | 1065.11 ± 27.85 | 1506.41 ± 0.98 |
| Observation date | 2021 Nov 15 | 2021 Nov 17 | 2022 Jan 26 | 2021 Mar 9 |
| Telescope | SaCRA | SaCRA | SaCRA | Pirka |
| Instrument | MuSaSHI | MuSaSHI | MuSaSHI | MSI |
| Filter(s) | r, i, |$z$| | r, i, |$z$| | r, i, |$z$| | U |
| Start time of observation (UTC) | 08:46:59 | 08:35:00 | 08:47:59 | 09:16:57 |
| Central time of observation (UTC) | 08:47:00 | 08:35:01 | 08:48:00 | 09:17:00 |
| End time of observation (UTC) | 08:47:02 | 08:35:03 | 08:48:02 | 09:17:02 |
| Exposure time (s) | 3.0 | 3.0 | 3.0 | 5.0 |
| RA | |${18^{\rm h}21^{\rm m}04{^{\rm s}_{.}}2}$| | |${16^{\rm h}22^{\rm m}13{^{\rm s}_{.}}1}$| | |${06^{\rm h}02^{\rm m}53{^{\rm s}_{.}}1}$| | |${14^{\rm h}05^{\rm m}12{^{\rm s}_{.}}9}$| |
| Dec | +|${18^{\circ}37^{\prime \prime }06_{.}^{\prime }0}$| | +|${45^{\circ}36^{\prime }51^{\prime \prime }_{.}6}$| | +|${15^{\circ}13^{\prime }28^{\prime \prime }_{.}8}$| | +|${75^{\circ}09^{\prime }53^{\prime \prime }_{.}8}$| |
| Azimuth (°) | 262.7 | 306.1 | 98.8 | 15.5 |
| Elevation (°) | 42.5 | 32.0 | 38.0 | 35.2 |
| Airmass | 1.48 | 1.90 | 1.62 | 1.73 |
| D† (km) | 777.46 | 957.08 | 844.00 | 889.91 |
| Solar phase angle (°) | 122.5 | 114.3 | 36.2 | 74.6 |
| Observer phase angle (°) | 57.5 | 65.7 | 143.8 | 105.4 |
| Angular velocity (arcsec s−1) | 1603.68 ± 23.59 | 1524.99 ± 7.85 | 1417.83 ± 20.80 | 1683.70 ± 3.95 |
| Target | Visorsat | STARLINK-1113 | Visorsat | |
| Observation date | 2021 Mar 9 | 2021 Mar 19 | 2021 Feb 13 | |
| Telescope | Pirka | Pirka | PROMPT-6 | |
| Instrument | MSI | MSI | FLI PL23042 | |
| Filter(s) | U | U | V | |
| Start time of observation (UTC) | 10:55:07 | 19:45:17 | 00:20:00 | |
| Central time of observation (UTC) | 10:55:10 | 19:45:20 | — | |
| End time of observation (UTC) | 10:55:12 | 19:45:22 | — | |
| Exposure time (s) | 5.0 | 5.0 | 0.2 | |
| RA | |${02^{\rm h}34^{\rm m}12{^{\rm s}_{.}}2}$| | |${18^{\rm h}41^{\rm m}12{^{\rm s}_{.}}2}$| | |${02^{\rm h}50^{\rm m}33{^{\rm s}_{.}}6}$| | |
| Dec | +|${32^{\circ}39^{\prime }18^{\prime \prime }_{.}9}$| | +|${19^{\circ}16^{\prime }29^{\prime \prime }_{.}6}$| | +|${41^{\circ}34^{\prime }36^{\prime \prime }_{.}3}$| | |
| Azimuth (°) | 286.0 | 142.3 | 334.4 | |
| Elevation (°) | 32.4 | 49.1 | 11.4 | |
| Airmass | 1.86 | 1.32 | 4.89 | |
| D† (km) | 942.26 | 709.73 | 1719.79 | |
| Solar phase angle (°) | 120.7 | 100.6 | 91.16 | |
| Observer phase angle (°) | 59.3 | 79.4 | 88.83 | |
| Angular velocity (arcsec s−1) | 1120.81 ± 28.12 | 2132.09 ± 3.19 | 784.88 |
| Target . | Visorsat . | Visorsat . | Visorsat . | STARLINK-1113 . |
|---|---|---|---|---|
| Observation date | 2021 Feb 14 | 2021 Feb 15 | 2021 Mar 14 | 2021 Feb 5 |
| Telescope | Murikabushi | Murikabushi | Murikabushi | Murikabushi |
| Instrument | MITSuME | MITSuME | MITSuME | MITSuME |
| Filter(s) | g′, RC, IC | g′, RC, IC | g′, RC, IC | g′, RC, IC |
| Start time of observation (UTC) | 21:40:57 | 21:33:27 | 12:03:17 | 11:10:27 |
| Central time of observation (UTC) | 21:41:00 | 21:33:30 | 12:03:20 | 11:10:30 |
| End time of observation (UTC) | 21:41:02 | 21:33:32 | 12:03:22 | 11:10:32 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 5.0 |
| RA | |${17^{\rm h}53^{\rm m}52{^{\rm s}_{.}}5}$| | |${14^{\rm h}13^{\rm m}33{^{\rm s}_{.}}94}$| | |${02^{\rm h}35^{\rm m}05{^{\rm s}_{.}}7}$| | |${02^{\rm h}45^{\rm m}14{^{\rm s}_{.}}2}$| |
| Dec | +|${02^{\circ}04^{\prime }06^{\prime \prime }_{.}8}$| | +|${21^{\circ}39^{\prime }01^{\prime \prime }_{.}7}$| | +|${34^{\circ}23^{\prime }55^{\prime \prime }_{.}4}$| | −|${16^{\circ}09^{\prime }41^{\prime \prime }_{.}9}$| |
| Azimuth (°) | 61.6 | 265.3 | 299.0 | 214.7 |
| Elevation (°) | 50.3 | 71.4 | 22.8 | 42.2 |
| Airmass | 1.30 | 1.05 | 2.55 | 1.48 |
| D† (km) | 694.54 | 575.51 | 1189.77 | 781.42 |
| Solar phase angle (°) | 118.7 | 61.4 | 124.4 | 101.5 |
| Observer phase angle (°) | 61.3 | 118.6 | 55.6 | 78.4 |
| Angular velocity (arcsec s−1) | 1826.78 ± 49.04 | 2587.01 ± 26.01 | 812.41 ± 16.89 | 1417.02 ± 41.15 |
| Target | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 | Visorsat |
| Observation date | 2021 Mar 17 | 2021 Mar 18 | 2021 Mar 22 | 2021 Nov 11 |
| Telescope | Akeno 50 cm | Akeno 50 cm | Akeno 50 cm | Akeno 50 cm |
| Instrument | MITSuME | MITSuME | MITSuME | MITSuME |
| Filter(s) | g′, RC, IC | g′, RC, IC | g′, RC, IC | g′, RC, IC |
| Start time of observation (UTC) | 19:53:58 | 19:48:28 | 19:26:58 | 09:12:28 |
| Central time of observation (UTC) | 19:54:00 | 19:48:30 | 19:27:00 | 09:12:30 |
| End time of observation (UTC) | 19:54:03 | 19:48:33 | 19:27:03 | 09:12:33 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 5.0 |
| RA | |${18^{\rm h}26^{\rm m}36{^{\rm s}_{.}}3}$| | |${17^{\rm h}27^{\rm m}46{^{\rm s}_{.}}3}$| | |${10^{\rm h}41^{\rm m}52{^{\rm s}_{.}}5}$| | |${23^{\rm h}37^{\rm m}43{^{\rm s}_{.}}5}$| |
| Dec | |${-02^{\circ}11^{\prime }27^{\prime \prime }_{.}6}$| | +|${14^{\circ}02^{\prime }19^{\prime \prime }_{.}3}$| | +|${66^{\circ}20^{\prime }40^{\prime \prime }_{.}9}$| | |${-18^{\circ}41^{\prime }37^{\prime \prime }_{.}5}$| |
| Azimuth (°) | 143.8 | 155.1 | 331.5 | 149.9 |
| Elevation (°) | 45.8 | 66.5 | 32.4 | 29.8 |
| Airmass | 1.40 | 1.09 | 1.86 | 2.08 |
| D† (km) | 781.42 | 595.91 | 944.37 | 993.21 |
| Solar phase angle (°) | 99.3 | 83.7 | 68.9 | 62.6 |
| Observer phase angle (°) | 80.7 | 96.3 | 111.1 | 117.4 |
| Angular velocity (arcsec s−1) | 2021.02 ± 13.43 | 2510.70 ± 19.97 | 1582.80 ± 5.74 | 1461.82 ± 14.7 |
| Target | Visorsat | Visorsat | Visorsat | Visorsat |
| Observation date | 2022 Jan 17 | 2021 Mar 15 | 2021 Mar 15 | 2022 Jan 17 |
| Telescope | Akeno 50 cm | Kanata | Kanata | Kanata |
| Instrument | MITSuME | HONIR‡ | HONIR‡ | HONIR‡ |
| Filter(s) | g′, RC, IC | V | H | V |
| Start time of observation (UTC) | 9:27:58 | 10:19:52 | 10:19:52 | 9:26:54 |
| Central time of observation (UTC) | 9:28:00 | 10:20:02 | 10:19:55 | 9:27:04 |
| End time of observation (UTC) | 9:28:03 | 10:20:12 | 10:19:57 | 9:27:14 |
| Exposure time (s) | 5.0 | 20.0 | 5.0 | 20.0 |
| RA | |${00^{\rm h}06^{\rm m}52{^{\rm s}_{.}}27}$| | |${07^{\rm h}00^{\rm m}34{^{\rm s}_{.}}15}$| | |${06^{\rm h}49^{\rm m}6{^{\rm s}_{.}}8}$| | |${01^{\rm h}12^{\rm m}24{^{\rm s}_{.}}5}$| |
| Dec | |${-10^{\circ}22^{\prime }29^{\prime \prime }_{.}6}$| | |${-04^{\circ}07^{\prime }00^{\prime \prime }_{.}6}$| | |${-01^{\circ}26^{\prime }45^{\prime \prime }_{.}7}$| | |${-19^{\circ}19^{\prime }29^{\prime \prime }_{.}9}$| |
| Azimuth (°) | 222.4 | 173.0 | 177.4 | 195.0 |
| Elevation (°) | 34.0 | 51.3 | 54.1 | 35.0 |
| Airmass | 1.63 | 1.26 | 1.26 | 1.79 |
| D† (km) | 906.24 | 685.40 | 662.76 | 937.95 |
| Solar phase angle (°) | 118.2 | 70.3 | 73.0 | 106.6 |
| Observer phase angle (°) | 61.8 | 109.7 | 107.0 | 73.3 |
| Angular velocity (arcsec s−1) | 1080.83 ± 29.46 | 1963.23 ± 182.15 | 2080.71 ± 44.71 | 1259.71 ± 128.12 |
| Observation date | 2022 Jan 17 | 2022 Jan 19 | 2022 Jan 19 | 2021 Mar 19 |
| Telescope | Kanata | Kanata | Kanata | Kanata |
| Instrument | HONIR‡ | HONIR‡ | HONIR‡ | HONIR‡ |
| Filter(s) | H | B | H | V |
| Start time of observation (UTC) | 09:26:54 | 09:14:53 | 09:14:53 | 19:42:21 |
| Central time of observation (UTC) | 09:26:57 | 09:15:03 | 09:14:56 | 19:42:31 |
| End time of observation (UTC) | 09:26:59 | 09:15:13 | 09:14:58 | 19:42:41 |
| Exposure time (s) | 5.0 | 20.0 | 5.0 | 20.0 |
| RA | |${01^{\rm h}04^{\rm m}2{^{\rm s}_{.}}8}$| | |${23^{\rm h}20^{\rm m}55{^{\rm s}_{.}}1}$| | |${23^{\rm h}14^{\rm m}51{^{\rm s}_{.}}3}$| | |${18^{\rm h}50^{\rm m}00{^{\rm s}_{.}}1}$| |
| Dec | |${-20^{\circ}55^{\prime }37^{\prime \prime }}$| | +|${17^{\circ}10^{\prime }26^{\prime \prime }_{.}7}$| | +|${13^{\circ}42^{\prime }20^{\prime \prime }}$| | +|${29^{\circ}50^{\prime }25^{\prime \prime }_{.}0}$| |
| Azimuth (°) | 196.8 | 254.5 | 251.5 | 88.0 |
| Elevation (°) | 33.0 | 50.7 | 47.5 | 58.7 |
| Airmass | 1.79 | 1.31 | 1.32 | 1.16 |
| D† (km) | 925.08 | 690.72 | 720.08 | 635.29 |
| Solar phase angle (°) | 108.8 | 118.9 | 122.1 | 101.3 |
| Observer phase angle (°) | 71.2 | 61.1 | 57.9 | 78.7 |
| Angular velocity (arcsec s−1) | 1167.52 ± 29.5 | 1872.82 ± 189.03 | 1731.73 ± 46.05 | 2244.87 ± 167.29 |
| Target | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 | STARLINK-1113 |
| Observation date | 2021 Mar 19 | 2021 Mar 22 | 2022 Jan 24 | 2022 Jan 24 |
| Telescope | Kanata | Kanata | Kanata | Kanata |
| Instrument | HONIR | HONIR | HONIR | HONIR |
| Filter(s) | H | V | B | H |
| Start time of observation (UTC) | 19:42:21 | 19:26:42 | 10:34:55 | 10:34:55 |
| Central time of observation (UTC) | 19:42:24 | 19:26:52 | 10:35:05 | 10:34:58 |
| End time of observation (UTC) | 19:42:26 | 19:27:02 | 10:35:15 | 10:35:00 |
| Exposure time (s) | 5.0 | 20.0 | 20.0 | 5.0 |
| RA | |${18^{\rm h}31^{\rm m}29{^{\rm s}_{.}}2}$| | |${00^{\rm h}17^{\rm m}23{^{\rm s}_{.}}4}$| | |${23^{\rm h}24^{\rm m}30{^{\rm s}_{.}}6}$| | |${23^{\rm h}09^{\rm m}23{^{\rm s}_{.}}1}$| |
| Dec | +|${27^{\circ}18^{\prime }09^{\prime \prime }_{.}7}$| | +|${83^{\circ}41^{\prime }59^{\prime \prime }_{.}3}$| | +|${42^{\circ}57^{\prime }26^{\prime \prime }_{.}5}$| | +|${43^{\circ}22^{\prime }14^{\prime \prime }}$| |
| Azimuth (°) | 95.6 | 6.28 | 300.2 | 301.6 |
| Elevation (°) | 61.6 | 31.2 | 40.6 | 38.0 |
| Airmass | 1.16 | 1.90 | 1.59 | 1.59 |
| D† (km) | 618.8 | 970.8 | 805.8 | 843.3 |
| Solar phase angle (°) | 97.5 | 97.1 | 105.5 | 107.0 |
| Observer phase angle (°) | 82.5 | 82.9 | 74.5 | 73.0 |
| Angular velocity (arcsec s−1) | 2359.22 ± 40.87 | 1281.29 ± 100.82 | 1391.29 ± 155.07 | 1279.96 ± 35.33 |
| Target | Visorsat | STARLINK-1113 | Visorsat | Visorsat |
| Observation date | 2021 Feb 15 | 2021 Nov 2 | 2021 Mar 11 | 2021 Mar 15 |
| Telescope | Nayuta | Nayuta | SaCRA | SaCRA |
| Instrument | NIC | NIC | MuSaSHI | MuSaSHI |
| Filter(s) | J, H, Ks | J, H, Ks | r, i, |$z$| | r, i, |$z$| |
| Start time of observation (UTC) | 19:54:57 | 09:07:02 | 10:43:28 | 10:19:59 |
| Central time of observation (UTC) | 19:55:00 | 09:07:05 | 10:43:31 | 10:20:00 |
| End time of observation (UTC) | 19:55:02 | 09:07:07 | 10:43:33 | 10:20:02 |
| Exposure time (s) | 5.0 | 5.0 | 5.0 | 3.0 |
| RA | |${17^{\rm h}03^{\rm m}32{^{\rm s}_{.}}3}$| | |${17^{\rm h}13^{\rm m}31{^{\rm s}_{.}}0}$| | |${01^{\rm h}31^{\rm m}13{^{\rm s}_{.}}5}$| | |${04^{\rm h}22^{\rm m}21{^{\rm s}_{.}}9}$| |
| Dec | +|${03^{\circ}58^{\prime }59^{\prime \prime }_{.}4}$| | +|${02^{\circ}21^{\prime }12^{\prime \prime }_{.}2}$| | +|${62^{\circ}03^{\prime }51^{\prime \prime }_{.}9}$| | |${-10^{\circ}10^{\prime }59^{\prime \prime }_{.}8}$| |
| Azimuth (°) | 123.7 | 249.6 | 326.4 | 229.1 |
| Elevation (°) | 43.78 | 30.1 | 32.7 | 29.3 |
| Airmass | 1.44 | 1.99 | 1.85 | 2.03 |
| D† (km) | 761.3 | 992.20 | 940.74 | 1005.99 |
| Solar phase angle (°) | 105.3 | 136.0 | 110.4 | 109.7 |
| Observer phase angle (°) | 74.7 | 44.0 | 69.6 | 70.3 |
| Angular velocity (arcsec s−1) | 1509.96 ± 43.58 | 1027.67 ± 24.91 | 1065.11 ± 27.85 | 1506.41 ± 0.98 |
| Observation date | 2021 Nov 15 | 2021 Nov 17 | 2022 Jan 26 | 2021 Mar 9 |
| Telescope | SaCRA | SaCRA | SaCRA | Pirka |
| Instrument | MuSaSHI | MuSaSHI | MuSaSHI | MSI |
| Filter(s) | r, i, |$z$| | r, i, |$z$| | r, i, |$z$| | U |
| Start time of observation (UTC) | 08:46:59 | 08:35:00 | 08:47:59 | 09:16:57 |
| Central time of observation (UTC) | 08:47:00 | 08:35:01 | 08:48:00 | 09:17:00 |
| End time of observation (UTC) | 08:47:02 | 08:35:03 | 08:48:02 | 09:17:02 |
| Exposure time (s) | 3.0 | 3.0 | 3.0 | 5.0 |
| RA | |${18^{\rm h}21^{\rm m}04{^{\rm s}_{.}}2}$| | |${16^{\rm h}22^{\rm m}13{^{\rm s}_{.}}1}$| | |${06^{\rm h}02^{\rm m}53{^{\rm s}_{.}}1}$| | |${14^{\rm h}05^{\rm m}12{^{\rm s}_{.}}9}$| |
| Dec | +|${18^{\circ}37^{\prime \prime }06_{.}^{\prime }0}$| | +|${45^{\circ}36^{\prime }51^{\prime \prime }_{.}6}$| | +|${15^{\circ}13^{\prime }28^{\prime \prime }_{.}8}$| | +|${75^{\circ}09^{\prime }53^{\prime \prime }_{.}8}$| |
| Azimuth (°) | 262.7 | 306.1 | 98.8 | 15.5 |
| Elevation (°) | 42.5 | 32.0 | 38.0 | 35.2 |
| Airmass | 1.48 | 1.90 | 1.62 | 1.73 |
| D† (km) | 777.46 | 957.08 | 844.00 | 889.91 |
| Solar phase angle (°) | 122.5 | 114.3 | 36.2 | 74.6 |
| Observer phase angle (°) | 57.5 | 65.7 | 143.8 | 105.4 |
| Angular velocity (arcsec s−1) | 1603.68 ± 23.59 | 1524.99 ± 7.85 | 1417.83 ± 20.80 | 1683.70 ± 3.95 |
| Target | Visorsat | STARLINK-1113 | Visorsat | |
| Observation date | 2021 Mar 9 | 2021 Mar 19 | 2021 Feb 13 | |
| Telescope | Pirka | Pirka | PROMPT-6 | |
| Instrument | MSI | MSI | FLI PL23042 | |
| Filter(s) | U | U | V | |
| Start time of observation (UTC) | 10:55:07 | 19:45:17 | 00:20:00 | |
| Central time of observation (UTC) | 10:55:10 | 19:45:20 | — | |
| End time of observation (UTC) | 10:55:12 | 19:45:22 | — | |
| Exposure time (s) | 5.0 | 5.0 | 0.2 | |
| RA | |${02^{\rm h}34^{\rm m}12{^{\rm s}_{.}}2}$| | |${18^{\rm h}41^{\rm m}12{^{\rm s}_{.}}2}$| | |${02^{\rm h}50^{\rm m}33{^{\rm s}_{.}}6}$| | |
| Dec | +|${32^{\circ}39^{\prime }18^{\prime \prime }_{.}9}$| | +|${19^{\circ}16^{\prime }29^{\prime \prime }_{.}6}$| | +|${41^{\circ}34^{\prime }36^{\prime \prime }_{.}3}$| | |
| Azimuth (°) | 286.0 | 142.3 | 334.4 | |
| Elevation (°) | 32.4 | 49.1 | 11.4 | |
| Airmass | 1.86 | 1.32 | 4.89 | |
| D† (km) | 942.26 | 709.73 | 1719.79 | |
| Solar phase angle (°) | 120.7 | 100.6 | 91.16 | |
| Observer phase angle (°) | 59.3 | 79.4 | 88.83 | |
| Angular velocity (arcsec s−1) | 1120.81 ± 28.12 | 2132.09 ± 3.19 | 784.88 |
RA, Dec, azimuth, elevation, airmass, D, solar phase angle, and observer phase angle are values at the central exposure time.
Distance between satellite and observer.
The difference in the imaging system between the HONIR V or B and H passbands gives the differences in exposure times, RA and Dec at a central exposure time, and so on.
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