| Observation start date/ID . | Satellite/Instrument . | No. 5 |$^*$| . | No. 8a |$^*$| . | No. 9 |$^*$| . | No. 12 |$^*$| . | ||||
|---|---|---|---|---|---|---|---|---|---|
| . | . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . |
| 1978-12-15 |$^\S$| / | Einstein/IPC | 1.10 |$^{+0.10}_{\,-0.10}$| | — | 3.10 |$^{+0.20}_{\,-0.20}$| | — | 1.50 |$^{+0.10}_{\,-0.10}$| | — | 0.89 |$^{+0.04}_{\,-0.04}$| | — |
| 1979-11-22/5219 | Einstein/IPC | 1.62 |$^{+0.12}_{\,-0.12}$| | — | 4.24 |$^{+0.22}_{\,-0.22}$| | — | 0.62 |$^{+0.11}_{\,-0.11}$| | — | 1.04 |$^{+0.12}_{\,-0.12}$| | — |
| 1980-06-09/4221 | Einstein/IPC | 2.16 |$^{+0.04}_{\,-0.04}$| | — | 3.81 |$^{+0.06}_{\,-0.06}$| | — | 0.84 |$^{+0.04}_{\,-0.04}$| | — | 1.09 |$^{+0.04}_{\,-0.04}$| | — |
| 1991-04-21/200109 | ROSAT/PSPC | 2.09 |$^{+0.18}_{\,-0.18}$| | — | 2.80 |$^{+0.19}_{\,-0.18}$| | — | 0.60 |$^{+0.09}_{\,-0.09}$| | — | 1.79 |$^{+0.19}_{\,-0.22}$| | — |
| 1993-04-29/20003000 | ASCA/SIS | 3.92 |$^{+0.02}_{\,-1.53}$| | 1.45 |$^{+0.64}_{\,-1.08}$| | 7.79 |$^{+0.09}_{\,-1.13}$| | 1.44 |$^{+0.17}_{\,-0.46}$| | 1.63 |$^{+0.13}_{\,-0.66}$| | 1.00 |$^{+0.19}_{\,-0.51}$| | 2.70 |$^{+0.21}_{\,-1.07}$| | 0.50 |$^{+0.18}_{\,-0.32}$| |
| 1993-04-29/900314 | ROSAT/PSPC | 2.38 |$^{+0.08}_{\,-0.08}$| | — | 4.14 |$^{+0.09}_{\,-0.10}$| | — | 0.76 |$^{+0.05}_{\,-0.05}$| | — | 1.79 |$^{+0.10}_{\,-0.11}$| | — |
| 2002-07-31/2572 | Chandra/ACIS-S | 2.12 |$^{+0.53}_{\,-0.77}$| | 0.25 |$^{+0.05}_{\,-0.13}$| | 3.16 |$^{+0.08}_{\,-0.60}$| | 0.65 |$^{+0.06}_{\,-0.20}$| | 0.99 |$^{+0.08}_{\,-0.29}$| | 0.41 |$^{+0.06}_{\,-0.20}$| | 1.16 |$^{+0.06}_{\,-0.45}$| | 0.22 |$^{+0.04}_{\,-0.20}$| |
| 2004-01-16/4511 | Chandra/ACIS-I | — | — | 3.32 |$^{+0.11}_{\,-0.08}$| | 2.17 |$^{+0.13}_{\,-1.04}$| | 0.96 |$^{+0.04}_{\,-0.07}$| | 0.77 |$^{+0.04}_{\,-0.12}$| | 1.72 |$^{+0.08}_{\,-0.13}$| | 0.36 |$^{+0.03}_{\,-0.09}$| |
| 2004-10-29/0200450201 | XMM-Newton /EPIC | 2.13 |$^{+0.06}_{\,-0.38}$| | 0.37 |$^{+0.05}_{\,-0.15}$| | 5.01 |$^{+0.05}_{\,-0.08}$| | 1.06 |$^{+0.03}_{\,-0.04}$| | 1.12 |$^{+0.04}_{\,-0.08}$| | 0.43 |$^{+0.03}_{\,-0.04}$| | 1.92 |$^{+0.09}_{\,-0.18}$| | 0.51 |$^{+0.03}_{\,-0.08}$| |
| 2004-11-08/0200450301 | XMM-Newton /EPIC | 2.47 |$^{+0.05}_{\,-0.33}$| | 0.38 |$^{+0.03}_{\,-0.06}$| | 4.16 |$^{+0.05}_{\,-0.11}$| | 0.66 |$^{+0.02}_{\,-0.03}$| | 1.19 |$^{+0.05}_{\,-0.08}$| | 0.45 |$^{+0.03}_{\,-0.04}$| | 2.18 |$^{+0.08}_{\,-0.10}$| | 0.62 |$^{+0.04}_{\,-0.05}$| |
| 2004-11-18/0200450401 | XMM-Newton /EPIC | 2.41 |$^{+0.07}_{\,-0.33}$| | 0.36 |$^{+0.04}_{\,-0.08}$| | 4.90 |$^{+0.04}_{\,-0.08}$| | 1.04 |$^{+0.03}_{\,-0.04}$| | 1.14 |$^{+0.05}_{\,-0.11}$| | 0.44 |$^{+0.03}_{\,-0.04}$| | 2.56 |$^{+0.08}_{\,-0.11}$| | 0.70 |$^{+0.04}_{\,-0.06}$| |
| 2004-11-28/0200450501 | XMM-Newton /EPIC | 2.48 |$^{+0.07}_{\,-0.48}$| | 0.29 |$^{+0.04}_{\,-0.08}$| | 4.76 |$^{+0.05}_{\,-0.30}$| | 0.80 |$^{+0.04}_{\,-0.05}$| | 1.16 |$^{+0.06}_{\,-0.22}$| | 0.43 |$^{+0.05}_{\,-0.09}$| | 2.17 |$^{+0.12}_{\,-0.22}$| | 0.45 |$^{+0.06}_{\,-0.14}$| |
| 2007-04-29/0505110301 | XMM-Newton /EPIC | 3.60 |$^{+0.05}_{\,-0.27}$| | 0.63 |$^{+0.05}_{\,-0.06}$| | 4.54 |$^{+0.03}_{\,-0.10}$| | 0.82 |$^{+0.03}_{\,-0.03}$| | 1.10 |$^{+0.05}_{\,-0.07}$| | 0.43 |$^{+0.03}_{\,-0.04}$| | 1.42 |$^{+0.07}_{\,-0.21}$| | 0.43 |$^{+0.06}_{\,-0.32}$| |
| 2007-05-03/0505110401 | XMM-Newton /EPIC | 4.65 |$^{+0.06}_{\,-0.23}$| | 0.90 |$^{+0.05}_{\,-0.08}$| | 5.13 |$^{+0.04}_{\,-0.07}$| | 0.97 |$^{+0.03}_{\,-0.04}$| | 1.09 |$^{+0.06}_{\,-0.10}$| | 0.41 |$^{+0.03}_{\,-0.04}$| | 1.52 |$^{+0.08}_{\,-0.13}$| | 0.39 |$^{+0.04}_{\,-0.07}$| |
| 2007-12-18/402030010 | Suzaku/XIS | 3.30 |$^{+0.07}_{\,-0.31}$| | 0.65 |$^{+0.05}_{\,-0.08}$| | 7.09 |$^{+0.04}_{\,-0.20}$| | 1.28 |$^{+0.06}_{\,-0.06}$| | 1.04 |$^{+0.06}_{\,-0.24}$| | 0.41 |$^{+0.05}_{\,-0.14}$| | 1.88 |$^{+0.11}_{\,-0.17}$| | 0.48 |$^{+0.05}_{\,-0.11}$| |
| 2010-02-11/10951 | Chandra/ACIS-I | 1.60 |$^{+0.06}_{\,-0.34}$| | 0.27 |$^{+0.05}_{\,-0.22}$| | — | — | — | — | — | — |
| 2010-02-11/10952 | Chandra/ACIS-I | 1.94 |$^{+0.07}_{\,-0.43}$| | 0.55 |$^{+0.06}_{\,-0.28}$| | — | — | — | — | 1.60 |$^{+0.11}_{\,-0.29}$| | 0.46 |$^{+0.04}_{\,-0.18}$| |
| 2010-02-12/10953 | Chandra/ACIS-I | — | — | — | — | — | — | 1.59 |$^{+0.11}_{\,-0.29}$| | 0.51 |$^{+0.07}_{\,-0.36}$| |
| 2010-02-14/10955 | Chandra/ACIS-I | — | — | 4.64 |$^{+0.04}_{\,-0.44}$| | 1.77 |$^{+0.09}_{\,-0.21}$| | 0.91 |$^{+0.06}_{\,-0.16}$| | 0.29 |$^{+0.04}_{\,-0.12}$| | — | — |
| 2010-02-15/10956 | Chandra/ACIS-I | 2.27 |$^{+0.07}_{\,-0.37}$| | 0.42 |$^{+0.08}_{\,-0.34}$| | 5.28 |$^{+0.04}_{\,-0.62}$| | 1.40 |$^{+0.07}_{\,-0.42}$| | 0.63 |$^{+0.02}_{\,-0.18}$| | 0.42 |$^{+0.04}_{\,-0.34}$| | 1.42 |$^{+0.03}_{\,-0.17}$| | 0.64 |$^{+0.10}_{\,-0.49}$| |
| 2010-02-16/10957 | Chandra/ACIS-I | — | — | 4.60 |$^{+0.06}_{\,-0.36}$| | 1.45 |$^{+0.11}_{\,-0.55}$| | 0.77 |$^{+0.05}_{\,-0.11}$| | 0.32 |$^{+0.09}_{\,-0.20}$| | — | — |
| 2010-02-17/10958 | Chandra/ACIS-I | 2.10 |$^{+0.06}_{\,-0.31}$| | 0.45 |$^{+0.04}_{\,-0.16}$| | 4.35 |$^{+0.16}_{\,-0.47}$| | 1.01 |$^{+0.11}_{\,-0.58}$| | 0.77 |$^{+0.06}_{\,-0.16}$| | 0.29 |$^{+0.06}_{\,-0.21}$| | 1.55 |$^{+0.07}_{\,-0.18}$| | 0.40 |$^{+0.03}_{\,-0.06}$| |
| 2010-02-22/10962 | Chandra/ACIS-I | 1.77 |$^{+0.06}_{\,-0.37}$| | 0.27 |$^{+0.05}_{\,-0.18}$| | — | — | — | — | — | — |
| Observation start date/ID . | Satellite/Instrument . | No. 5 |$^*$| . | No. 8a |$^*$| . | No. 9 |$^*$| . | No. 12 |$^*$| . | ||||
|---|---|---|---|---|---|---|---|---|---|
| . | . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . |
| 1978-12-15 |$^\S$| / | Einstein/IPC | 1.10 |$^{+0.10}_{\,-0.10}$| | — | 3.10 |$^{+0.20}_{\,-0.20}$| | — | 1.50 |$^{+0.10}_{\,-0.10}$| | — | 0.89 |$^{+0.04}_{\,-0.04}$| | — |
| 1979-11-22/5219 | Einstein/IPC | 1.62 |$^{+0.12}_{\,-0.12}$| | — | 4.24 |$^{+0.22}_{\,-0.22}$| | — | 0.62 |$^{+0.11}_{\,-0.11}$| | — | 1.04 |$^{+0.12}_{\,-0.12}$| | — |
| 1980-06-09/4221 | Einstein/IPC | 2.16 |$^{+0.04}_{\,-0.04}$| | — | 3.81 |$^{+0.06}_{\,-0.06}$| | — | 0.84 |$^{+0.04}_{\,-0.04}$| | — | 1.09 |$^{+0.04}_{\,-0.04}$| | — |
| 1991-04-21/200109 | ROSAT/PSPC | 2.09 |$^{+0.18}_{\,-0.18}$| | — | 2.80 |$^{+0.19}_{\,-0.18}$| | — | 0.60 |$^{+0.09}_{\,-0.09}$| | — | 1.79 |$^{+0.19}_{\,-0.22}$| | — |
| 1993-04-29/20003000 | ASCA/SIS | 3.92 |$^{+0.02}_{\,-1.53}$| | 1.45 |$^{+0.64}_{\,-1.08}$| | 7.79 |$^{+0.09}_{\,-1.13}$| | 1.44 |$^{+0.17}_{\,-0.46}$| | 1.63 |$^{+0.13}_{\,-0.66}$| | 1.00 |$^{+0.19}_{\,-0.51}$| | 2.70 |$^{+0.21}_{\,-1.07}$| | 0.50 |$^{+0.18}_{\,-0.32}$| |
| 1993-04-29/900314 | ROSAT/PSPC | 2.38 |$^{+0.08}_{\,-0.08}$| | — | 4.14 |$^{+0.09}_{\,-0.10}$| | — | 0.76 |$^{+0.05}_{\,-0.05}$| | — | 1.79 |$^{+0.10}_{\,-0.11}$| | — |
| 2002-07-31/2572 | Chandra/ACIS-S | 2.12 |$^{+0.53}_{\,-0.77}$| | 0.25 |$^{+0.05}_{\,-0.13}$| | 3.16 |$^{+0.08}_{\,-0.60}$| | 0.65 |$^{+0.06}_{\,-0.20}$| | 0.99 |$^{+0.08}_{\,-0.29}$| | 0.41 |$^{+0.06}_{\,-0.20}$| | 1.16 |$^{+0.06}_{\,-0.45}$| | 0.22 |$^{+0.04}_{\,-0.20}$| |
| 2004-01-16/4511 | Chandra/ACIS-I | — | — | 3.32 |$^{+0.11}_{\,-0.08}$| | 2.17 |$^{+0.13}_{\,-1.04}$| | 0.96 |$^{+0.04}_{\,-0.07}$| | 0.77 |$^{+0.04}_{\,-0.12}$| | 1.72 |$^{+0.08}_{\,-0.13}$| | 0.36 |$^{+0.03}_{\,-0.09}$| |
| 2004-10-29/0200450201 | XMM-Newton /EPIC | 2.13 |$^{+0.06}_{\,-0.38}$| | 0.37 |$^{+0.05}_{\,-0.15}$| | 5.01 |$^{+0.05}_{\,-0.08}$| | 1.06 |$^{+0.03}_{\,-0.04}$| | 1.12 |$^{+0.04}_{\,-0.08}$| | 0.43 |$^{+0.03}_{\,-0.04}$| | 1.92 |$^{+0.09}_{\,-0.18}$| | 0.51 |$^{+0.03}_{\,-0.08}$| |
| 2004-11-08/0200450301 | XMM-Newton /EPIC | 2.47 |$^{+0.05}_{\,-0.33}$| | 0.38 |$^{+0.03}_{\,-0.06}$| | 4.16 |$^{+0.05}_{\,-0.11}$| | 0.66 |$^{+0.02}_{\,-0.03}$| | 1.19 |$^{+0.05}_{\,-0.08}$| | 0.45 |$^{+0.03}_{\,-0.04}$| | 2.18 |$^{+0.08}_{\,-0.10}$| | 0.62 |$^{+0.04}_{\,-0.05}$| |
| 2004-11-18/0200450401 | XMM-Newton /EPIC | 2.41 |$^{+0.07}_{\,-0.33}$| | 0.36 |$^{+0.04}_{\,-0.08}$| | 4.90 |$^{+0.04}_{\,-0.08}$| | 1.04 |$^{+0.03}_{\,-0.04}$| | 1.14 |$^{+0.05}_{\,-0.11}$| | 0.44 |$^{+0.03}_{\,-0.04}$| | 2.56 |$^{+0.08}_{\,-0.11}$| | 0.70 |$^{+0.04}_{\,-0.06}$| |
| 2004-11-28/0200450501 | XMM-Newton /EPIC | 2.48 |$^{+0.07}_{\,-0.48}$| | 0.29 |$^{+0.04}_{\,-0.08}$| | 4.76 |$^{+0.05}_{\,-0.30}$| | 0.80 |$^{+0.04}_{\,-0.05}$| | 1.16 |$^{+0.06}_{\,-0.22}$| | 0.43 |$^{+0.05}_{\,-0.09}$| | 2.17 |$^{+0.12}_{\,-0.22}$| | 0.45 |$^{+0.06}_{\,-0.14}$| |
| 2007-04-29/0505110301 | XMM-Newton /EPIC | 3.60 |$^{+0.05}_{\,-0.27}$| | 0.63 |$^{+0.05}_{\,-0.06}$| | 4.54 |$^{+0.03}_{\,-0.10}$| | 0.82 |$^{+0.03}_{\,-0.03}$| | 1.10 |$^{+0.05}_{\,-0.07}$| | 0.43 |$^{+0.03}_{\,-0.04}$| | 1.42 |$^{+0.07}_{\,-0.21}$| | 0.43 |$^{+0.06}_{\,-0.32}$| |
| 2007-05-03/0505110401 | XMM-Newton /EPIC | 4.65 |$^{+0.06}_{\,-0.23}$| | 0.90 |$^{+0.05}_{\,-0.08}$| | 5.13 |$^{+0.04}_{\,-0.07}$| | 0.97 |$^{+0.03}_{\,-0.04}$| | 1.09 |$^{+0.06}_{\,-0.10}$| | 0.41 |$^{+0.03}_{\,-0.04}$| | 1.52 |$^{+0.08}_{\,-0.13}$| | 0.39 |$^{+0.04}_{\,-0.07}$| |
| 2007-12-18/402030010 | Suzaku/XIS | 3.30 |$^{+0.07}_{\,-0.31}$| | 0.65 |$^{+0.05}_{\,-0.08}$| | 7.09 |$^{+0.04}_{\,-0.20}$| | 1.28 |$^{+0.06}_{\,-0.06}$| | 1.04 |$^{+0.06}_{\,-0.24}$| | 0.41 |$^{+0.05}_{\,-0.14}$| | 1.88 |$^{+0.11}_{\,-0.17}$| | 0.48 |$^{+0.05}_{\,-0.11}$| |
| 2010-02-11/10951 | Chandra/ACIS-I | 1.60 |$^{+0.06}_{\,-0.34}$| | 0.27 |$^{+0.05}_{\,-0.22}$| | — | — | — | — | — | — |
| 2010-02-11/10952 | Chandra/ACIS-I | 1.94 |$^{+0.07}_{\,-0.43}$| | 0.55 |$^{+0.06}_{\,-0.28}$| | — | — | — | — | 1.60 |$^{+0.11}_{\,-0.29}$| | 0.46 |$^{+0.04}_{\,-0.18}$| |
| 2010-02-12/10953 | Chandra/ACIS-I | — | — | — | — | — | — | 1.59 |$^{+0.11}_{\,-0.29}$| | 0.51 |$^{+0.07}_{\,-0.36}$| |
| 2010-02-14/10955 | Chandra/ACIS-I | — | — | 4.64 |$^{+0.04}_{\,-0.44}$| | 1.77 |$^{+0.09}_{\,-0.21}$| | 0.91 |$^{+0.06}_{\,-0.16}$| | 0.29 |$^{+0.04}_{\,-0.12}$| | — | — |
| 2010-02-15/10956 | Chandra/ACIS-I | 2.27 |$^{+0.07}_{\,-0.37}$| | 0.42 |$^{+0.08}_{\,-0.34}$| | 5.28 |$^{+0.04}_{\,-0.62}$| | 1.40 |$^{+0.07}_{\,-0.42}$| | 0.63 |$^{+0.02}_{\,-0.18}$| | 0.42 |$^{+0.04}_{\,-0.34}$| | 1.42 |$^{+0.03}_{\,-0.17}$| | 0.64 |$^{+0.10}_{\,-0.49}$| |
| 2010-02-16/10957 | Chandra/ACIS-I | — | — | 4.60 |$^{+0.06}_{\,-0.36}$| | 1.45 |$^{+0.11}_{\,-0.55}$| | 0.77 |$^{+0.05}_{\,-0.11}$| | 0.32 |$^{+0.09}_{\,-0.20}$| | — | — |
| 2010-02-17/10958 | Chandra/ACIS-I | 2.10 |$^{+0.06}_{\,-0.31}$| | 0.45 |$^{+0.04}_{\,-0.16}$| | 4.35 |$^{+0.16}_{\,-0.47}$| | 1.01 |$^{+0.11}_{\,-0.58}$| | 0.77 |$^{+0.06}_{\,-0.16}$| | 0.29 |$^{+0.06}_{\,-0.21}$| | 1.55 |$^{+0.07}_{\,-0.18}$| | 0.40 |$^{+0.03}_{\,-0.06}$| |
| 2010-02-22/10962 | Chandra/ACIS-I | 1.77 |$^{+0.06}_{\,-0.37}$| | 0.27 |$^{+0.05}_{\,-0.18}$| | — | — | — | — | — | — |
The unit of flux is |$\times$| 10 |$^{-12}$| ergcm |$^{-2}$| s.
0.5-4.0keV.
4.0-10.0keV.
Harnden et al. (1979) is referred.
| Observation start date/ID . | Satellite/Instrument . | No. 5 |$^*$| . | No. 8a |$^*$| . | No. 9 |$^*$| . | No. 12 |$^*$| . | ||||
|---|---|---|---|---|---|---|---|---|---|
| . | . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . |
| 1978-12-15 |$^\S$| / | Einstein/IPC | 1.10 |$^{+0.10}_{\,-0.10}$| | — | 3.10 |$^{+0.20}_{\,-0.20}$| | — | 1.50 |$^{+0.10}_{\,-0.10}$| | — | 0.89 |$^{+0.04}_{\,-0.04}$| | — |
| 1979-11-22/5219 | Einstein/IPC | 1.62 |$^{+0.12}_{\,-0.12}$| | — | 4.24 |$^{+0.22}_{\,-0.22}$| | — | 0.62 |$^{+0.11}_{\,-0.11}$| | — | 1.04 |$^{+0.12}_{\,-0.12}$| | — |
| 1980-06-09/4221 | Einstein/IPC | 2.16 |$^{+0.04}_{\,-0.04}$| | — | 3.81 |$^{+0.06}_{\,-0.06}$| | — | 0.84 |$^{+0.04}_{\,-0.04}$| | — | 1.09 |$^{+0.04}_{\,-0.04}$| | — |
| 1991-04-21/200109 | ROSAT/PSPC | 2.09 |$^{+0.18}_{\,-0.18}$| | — | 2.80 |$^{+0.19}_{\,-0.18}$| | — | 0.60 |$^{+0.09}_{\,-0.09}$| | — | 1.79 |$^{+0.19}_{\,-0.22}$| | — |
| 1993-04-29/20003000 | ASCA/SIS | 3.92 |$^{+0.02}_{\,-1.53}$| | 1.45 |$^{+0.64}_{\,-1.08}$| | 7.79 |$^{+0.09}_{\,-1.13}$| | 1.44 |$^{+0.17}_{\,-0.46}$| | 1.63 |$^{+0.13}_{\,-0.66}$| | 1.00 |$^{+0.19}_{\,-0.51}$| | 2.70 |$^{+0.21}_{\,-1.07}$| | 0.50 |$^{+0.18}_{\,-0.32}$| |
| 1993-04-29/900314 | ROSAT/PSPC | 2.38 |$^{+0.08}_{\,-0.08}$| | — | 4.14 |$^{+0.09}_{\,-0.10}$| | — | 0.76 |$^{+0.05}_{\,-0.05}$| | — | 1.79 |$^{+0.10}_{\,-0.11}$| | — |
| 2002-07-31/2572 | Chandra/ACIS-S | 2.12 |$^{+0.53}_{\,-0.77}$| | 0.25 |$^{+0.05}_{\,-0.13}$| | 3.16 |$^{+0.08}_{\,-0.60}$| | 0.65 |$^{+0.06}_{\,-0.20}$| | 0.99 |$^{+0.08}_{\,-0.29}$| | 0.41 |$^{+0.06}_{\,-0.20}$| | 1.16 |$^{+0.06}_{\,-0.45}$| | 0.22 |$^{+0.04}_{\,-0.20}$| |
| 2004-01-16/4511 | Chandra/ACIS-I | — | — | 3.32 |$^{+0.11}_{\,-0.08}$| | 2.17 |$^{+0.13}_{\,-1.04}$| | 0.96 |$^{+0.04}_{\,-0.07}$| | 0.77 |$^{+0.04}_{\,-0.12}$| | 1.72 |$^{+0.08}_{\,-0.13}$| | 0.36 |$^{+0.03}_{\,-0.09}$| |
| 2004-10-29/0200450201 | XMM-Newton /EPIC | 2.13 |$^{+0.06}_{\,-0.38}$| | 0.37 |$^{+0.05}_{\,-0.15}$| | 5.01 |$^{+0.05}_{\,-0.08}$| | 1.06 |$^{+0.03}_{\,-0.04}$| | 1.12 |$^{+0.04}_{\,-0.08}$| | 0.43 |$^{+0.03}_{\,-0.04}$| | 1.92 |$^{+0.09}_{\,-0.18}$| | 0.51 |$^{+0.03}_{\,-0.08}$| |
| 2004-11-08/0200450301 | XMM-Newton /EPIC | 2.47 |$^{+0.05}_{\,-0.33}$| | 0.38 |$^{+0.03}_{\,-0.06}$| | 4.16 |$^{+0.05}_{\,-0.11}$| | 0.66 |$^{+0.02}_{\,-0.03}$| | 1.19 |$^{+0.05}_{\,-0.08}$| | 0.45 |$^{+0.03}_{\,-0.04}$| | 2.18 |$^{+0.08}_{\,-0.10}$| | 0.62 |$^{+0.04}_{\,-0.05}$| |
| 2004-11-18/0200450401 | XMM-Newton /EPIC | 2.41 |$^{+0.07}_{\,-0.33}$| | 0.36 |$^{+0.04}_{\,-0.08}$| | 4.90 |$^{+0.04}_{\,-0.08}$| | 1.04 |$^{+0.03}_{\,-0.04}$| | 1.14 |$^{+0.05}_{\,-0.11}$| | 0.44 |$^{+0.03}_{\,-0.04}$| | 2.56 |$^{+0.08}_{\,-0.11}$| | 0.70 |$^{+0.04}_{\,-0.06}$| |
| 2004-11-28/0200450501 | XMM-Newton /EPIC | 2.48 |$^{+0.07}_{\,-0.48}$| | 0.29 |$^{+0.04}_{\,-0.08}$| | 4.76 |$^{+0.05}_{\,-0.30}$| | 0.80 |$^{+0.04}_{\,-0.05}$| | 1.16 |$^{+0.06}_{\,-0.22}$| | 0.43 |$^{+0.05}_{\,-0.09}$| | 2.17 |$^{+0.12}_{\,-0.22}$| | 0.45 |$^{+0.06}_{\,-0.14}$| |
| 2007-04-29/0505110301 | XMM-Newton /EPIC | 3.60 |$^{+0.05}_{\,-0.27}$| | 0.63 |$^{+0.05}_{\,-0.06}$| | 4.54 |$^{+0.03}_{\,-0.10}$| | 0.82 |$^{+0.03}_{\,-0.03}$| | 1.10 |$^{+0.05}_{\,-0.07}$| | 0.43 |$^{+0.03}_{\,-0.04}$| | 1.42 |$^{+0.07}_{\,-0.21}$| | 0.43 |$^{+0.06}_{\,-0.32}$| |
| 2007-05-03/0505110401 | XMM-Newton /EPIC | 4.65 |$^{+0.06}_{\,-0.23}$| | 0.90 |$^{+0.05}_{\,-0.08}$| | 5.13 |$^{+0.04}_{\,-0.07}$| | 0.97 |$^{+0.03}_{\,-0.04}$| | 1.09 |$^{+0.06}_{\,-0.10}$| | 0.41 |$^{+0.03}_{\,-0.04}$| | 1.52 |$^{+0.08}_{\,-0.13}$| | 0.39 |$^{+0.04}_{\,-0.07}$| |
| 2007-12-18/402030010 | Suzaku/XIS | 3.30 |$^{+0.07}_{\,-0.31}$| | 0.65 |$^{+0.05}_{\,-0.08}$| | 7.09 |$^{+0.04}_{\,-0.20}$| | 1.28 |$^{+0.06}_{\,-0.06}$| | 1.04 |$^{+0.06}_{\,-0.24}$| | 0.41 |$^{+0.05}_{\,-0.14}$| | 1.88 |$^{+0.11}_{\,-0.17}$| | 0.48 |$^{+0.05}_{\,-0.11}$| |
| 2010-02-11/10951 | Chandra/ACIS-I | 1.60 |$^{+0.06}_{\,-0.34}$| | 0.27 |$^{+0.05}_{\,-0.22}$| | — | — | — | — | — | — |
| 2010-02-11/10952 | Chandra/ACIS-I | 1.94 |$^{+0.07}_{\,-0.43}$| | 0.55 |$^{+0.06}_{\,-0.28}$| | — | — | — | — | 1.60 |$^{+0.11}_{\,-0.29}$| | 0.46 |$^{+0.04}_{\,-0.18}$| |
| 2010-02-12/10953 | Chandra/ACIS-I | — | — | — | — | — | — | 1.59 |$^{+0.11}_{\,-0.29}$| | 0.51 |$^{+0.07}_{\,-0.36}$| |
| 2010-02-14/10955 | Chandra/ACIS-I | — | — | 4.64 |$^{+0.04}_{\,-0.44}$| | 1.77 |$^{+0.09}_{\,-0.21}$| | 0.91 |$^{+0.06}_{\,-0.16}$| | 0.29 |$^{+0.04}_{\,-0.12}$| | — | — |
| 2010-02-15/10956 | Chandra/ACIS-I | 2.27 |$^{+0.07}_{\,-0.37}$| | 0.42 |$^{+0.08}_{\,-0.34}$| | 5.28 |$^{+0.04}_{\,-0.62}$| | 1.40 |$^{+0.07}_{\,-0.42}$| | 0.63 |$^{+0.02}_{\,-0.18}$| | 0.42 |$^{+0.04}_{\,-0.34}$| | 1.42 |$^{+0.03}_{\,-0.17}$| | 0.64 |$^{+0.10}_{\,-0.49}$| |
| 2010-02-16/10957 | Chandra/ACIS-I | — | — | 4.60 |$^{+0.06}_{\,-0.36}$| | 1.45 |$^{+0.11}_{\,-0.55}$| | 0.77 |$^{+0.05}_{\,-0.11}$| | 0.32 |$^{+0.09}_{\,-0.20}$| | — | — |
| 2010-02-17/10958 | Chandra/ACIS-I | 2.10 |$^{+0.06}_{\,-0.31}$| | 0.45 |$^{+0.04}_{\,-0.16}$| | 4.35 |$^{+0.16}_{\,-0.47}$| | 1.01 |$^{+0.11}_{\,-0.58}$| | 0.77 |$^{+0.06}_{\,-0.16}$| | 0.29 |$^{+0.06}_{\,-0.21}$| | 1.55 |$^{+0.07}_{\,-0.18}$| | 0.40 |$^{+0.03}_{\,-0.06}$| |
| 2010-02-22/10962 | Chandra/ACIS-I | 1.77 |$^{+0.06}_{\,-0.37}$| | 0.27 |$^{+0.05}_{\,-0.18}$| | — | — | — | — | — | — |
| Observation start date/ID . | Satellite/Instrument . | No. 5 |$^*$| . | No. 8a |$^*$| . | No. 9 |$^*$| . | No. 12 |$^*$| . | ||||
|---|---|---|---|---|---|---|---|---|---|
| . | . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . | Low |$^\dagger$| . | High |$^\ddagger$| . |
| 1978-12-15 |$^\S$| / | Einstein/IPC | 1.10 |$^{+0.10}_{\,-0.10}$| | — | 3.10 |$^{+0.20}_{\,-0.20}$| | — | 1.50 |$^{+0.10}_{\,-0.10}$| | — | 0.89 |$^{+0.04}_{\,-0.04}$| | — |
| 1979-11-22/5219 | Einstein/IPC | 1.62 |$^{+0.12}_{\,-0.12}$| | — | 4.24 |$^{+0.22}_{\,-0.22}$| | — | 0.62 |$^{+0.11}_{\,-0.11}$| | — | 1.04 |$^{+0.12}_{\,-0.12}$| | — |
| 1980-06-09/4221 | Einstein/IPC | 2.16 |$^{+0.04}_{\,-0.04}$| | — | 3.81 |$^{+0.06}_{\,-0.06}$| | — | 0.84 |$^{+0.04}_{\,-0.04}$| | — | 1.09 |$^{+0.04}_{\,-0.04}$| | — |
| 1991-04-21/200109 | ROSAT/PSPC | 2.09 |$^{+0.18}_{\,-0.18}$| | — | 2.80 |$^{+0.19}_{\,-0.18}$| | — | 0.60 |$^{+0.09}_{\,-0.09}$| | — | 1.79 |$^{+0.19}_{\,-0.22}$| | — |
| 1993-04-29/20003000 | ASCA/SIS | 3.92 |$^{+0.02}_{\,-1.53}$| | 1.45 |$^{+0.64}_{\,-1.08}$| | 7.79 |$^{+0.09}_{\,-1.13}$| | 1.44 |$^{+0.17}_{\,-0.46}$| | 1.63 |$^{+0.13}_{\,-0.66}$| | 1.00 |$^{+0.19}_{\,-0.51}$| | 2.70 |$^{+0.21}_{\,-1.07}$| | 0.50 |$^{+0.18}_{\,-0.32}$| |
| 1993-04-29/900314 | ROSAT/PSPC | 2.38 |$^{+0.08}_{\,-0.08}$| | — | 4.14 |$^{+0.09}_{\,-0.10}$| | — | 0.76 |$^{+0.05}_{\,-0.05}$| | — | 1.79 |$^{+0.10}_{\,-0.11}$| | — |
| 2002-07-31/2572 | Chandra/ACIS-S | 2.12 |$^{+0.53}_{\,-0.77}$| | 0.25 |$^{+0.05}_{\,-0.13}$| | 3.16 |$^{+0.08}_{\,-0.60}$| | 0.65 |$^{+0.06}_{\,-0.20}$| | 0.99 |$^{+0.08}_{\,-0.29}$| | 0.41 |$^{+0.06}_{\,-0.20}$| | 1.16 |$^{+0.06}_{\,-0.45}$| | 0.22 |$^{+0.04}_{\,-0.20}$| |
| 2004-01-16/4511 | Chandra/ACIS-I | — | — | 3.32 |$^{+0.11}_{\,-0.08}$| | 2.17 |$^{+0.13}_{\,-1.04}$| | 0.96 |$^{+0.04}_{\,-0.07}$| | 0.77 |$^{+0.04}_{\,-0.12}$| | 1.72 |$^{+0.08}_{\,-0.13}$| | 0.36 |$^{+0.03}_{\,-0.09}$| |
| 2004-10-29/0200450201 | XMM-Newton /EPIC | 2.13 |$^{+0.06}_{\,-0.38}$| | 0.37 |$^{+0.05}_{\,-0.15}$| | 5.01 |$^{+0.05}_{\,-0.08}$| | 1.06 |$^{+0.03}_{\,-0.04}$| | 1.12 |$^{+0.04}_{\,-0.08}$| | 0.43 |$^{+0.03}_{\,-0.04}$| | 1.92 |$^{+0.09}_{\,-0.18}$| | 0.51 |$^{+0.03}_{\,-0.08}$| |
| 2004-11-08/0200450301 | XMM-Newton /EPIC | 2.47 |$^{+0.05}_{\,-0.33}$| | 0.38 |$^{+0.03}_{\,-0.06}$| | 4.16 |$^{+0.05}_{\,-0.11}$| | 0.66 |$^{+0.02}_{\,-0.03}$| | 1.19 |$^{+0.05}_{\,-0.08}$| | 0.45 |$^{+0.03}_{\,-0.04}$| | 2.18 |$^{+0.08}_{\,-0.10}$| | 0.62 |$^{+0.04}_{\,-0.05}$| |
| 2004-11-18/0200450401 | XMM-Newton /EPIC | 2.41 |$^{+0.07}_{\,-0.33}$| | 0.36 |$^{+0.04}_{\,-0.08}$| | 4.90 |$^{+0.04}_{\,-0.08}$| | 1.04 |$^{+0.03}_{\,-0.04}$| | 1.14 |$^{+0.05}_{\,-0.11}$| | 0.44 |$^{+0.03}_{\,-0.04}$| | 2.56 |$^{+0.08}_{\,-0.11}$| | 0.70 |$^{+0.04}_{\,-0.06}$| |
| 2004-11-28/0200450501 | XMM-Newton /EPIC | 2.48 |$^{+0.07}_{\,-0.48}$| | 0.29 |$^{+0.04}_{\,-0.08}$| | 4.76 |$^{+0.05}_{\,-0.30}$| | 0.80 |$^{+0.04}_{\,-0.05}$| | 1.16 |$^{+0.06}_{\,-0.22}$| | 0.43 |$^{+0.05}_{\,-0.09}$| | 2.17 |$^{+0.12}_{\,-0.22}$| | 0.45 |$^{+0.06}_{\,-0.14}$| |
| 2007-04-29/0505110301 | XMM-Newton /EPIC | 3.60 |$^{+0.05}_{\,-0.27}$| | 0.63 |$^{+0.05}_{\,-0.06}$| | 4.54 |$^{+0.03}_{\,-0.10}$| | 0.82 |$^{+0.03}_{\,-0.03}$| | 1.10 |$^{+0.05}_{\,-0.07}$| | 0.43 |$^{+0.03}_{\,-0.04}$| | 1.42 |$^{+0.07}_{\,-0.21}$| | 0.43 |$^{+0.06}_{\,-0.32}$| |
| 2007-05-03/0505110401 | XMM-Newton /EPIC | 4.65 |$^{+0.06}_{\,-0.23}$| | 0.90 |$^{+0.05}_{\,-0.08}$| | 5.13 |$^{+0.04}_{\,-0.07}$| | 0.97 |$^{+0.03}_{\,-0.04}$| | 1.09 |$^{+0.06}_{\,-0.10}$| | 0.41 |$^{+0.03}_{\,-0.04}$| | 1.52 |$^{+0.08}_{\,-0.13}$| | 0.39 |$^{+0.04}_{\,-0.07}$| |
| 2007-12-18/402030010 | Suzaku/XIS | 3.30 |$^{+0.07}_{\,-0.31}$| | 0.65 |$^{+0.05}_{\,-0.08}$| | 7.09 |$^{+0.04}_{\,-0.20}$| | 1.28 |$^{+0.06}_{\,-0.06}$| | 1.04 |$^{+0.06}_{\,-0.24}$| | 0.41 |$^{+0.05}_{\,-0.14}$| | 1.88 |$^{+0.11}_{\,-0.17}$| | 0.48 |$^{+0.05}_{\,-0.11}$| |
| 2010-02-11/10951 | Chandra/ACIS-I | 1.60 |$^{+0.06}_{\,-0.34}$| | 0.27 |$^{+0.05}_{\,-0.22}$| | — | — | — | — | — | — |
| 2010-02-11/10952 | Chandra/ACIS-I | 1.94 |$^{+0.07}_{\,-0.43}$| | 0.55 |$^{+0.06}_{\,-0.28}$| | — | — | — | — | 1.60 |$^{+0.11}_{\,-0.29}$| | 0.46 |$^{+0.04}_{\,-0.18}$| |
| 2010-02-12/10953 | Chandra/ACIS-I | — | — | — | — | — | — | 1.59 |$^{+0.11}_{\,-0.29}$| | 0.51 |$^{+0.07}_{\,-0.36}$| |
| 2010-02-14/10955 | Chandra/ACIS-I | — | — | 4.64 |$^{+0.04}_{\,-0.44}$| | 1.77 |$^{+0.09}_{\,-0.21}$| | 0.91 |$^{+0.06}_{\,-0.16}$| | 0.29 |$^{+0.04}_{\,-0.12}$| | — | — |
| 2010-02-15/10956 | Chandra/ACIS-I | 2.27 |$^{+0.07}_{\,-0.37}$| | 0.42 |$^{+0.08}_{\,-0.34}$| | 5.28 |$^{+0.04}_{\,-0.62}$| | 1.40 |$^{+0.07}_{\,-0.42}$| | 0.63 |$^{+0.02}_{\,-0.18}$| | 0.42 |$^{+0.04}_{\,-0.34}$| | 1.42 |$^{+0.03}_{\,-0.17}$| | 0.64 |$^{+0.10}_{\,-0.49}$| |
| 2010-02-16/10957 | Chandra/ACIS-I | — | — | 4.60 |$^{+0.06}_{\,-0.36}$| | 1.45 |$^{+0.11}_{\,-0.55}$| | 0.77 |$^{+0.05}_{\,-0.11}$| | 0.32 |$^{+0.09}_{\,-0.20}$| | — | — |
| 2010-02-17/10958 | Chandra/ACIS-I | 2.10 |$^{+0.06}_{\,-0.31}$| | 0.45 |$^{+0.04}_{\,-0.16}$| | 4.35 |$^{+0.16}_{\,-0.47}$| | 1.01 |$^{+0.11}_{\,-0.58}$| | 0.77 |$^{+0.06}_{\,-0.16}$| | 0.29 |$^{+0.06}_{\,-0.21}$| | 1.55 |$^{+0.07}_{\,-0.18}$| | 0.40 |$^{+0.03}_{\,-0.06}$| |
| 2010-02-22/10962 | Chandra/ACIS-I | 1.77 |$^{+0.06}_{\,-0.37}$| | 0.27 |$^{+0.05}_{\,-0.18}$| | — | — | — | — | — | — |
The unit of flux is |$\times$| 10 |$^{-12}$| ergcm |$^{-2}$| s.
0.5-4.0keV.
4.0-10.0keV.
Harnden et al. (1979) is referred.
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