| Observatory . | Sierra Negra . | |
|---|---|---|
| Excess time | 19:57–20:04 UT | 20:36–21:03 UT |
| Statistical significance: L1 | 6.8σ >30 MeV† | 5.8σ >30 MeV‡ |
| Statistical significance: N1 | 3.0σ >30 MeV | 2.3σ >30 MeV |
| Excess of L1 channel | 201 ± 7 events min−1 m−2 | 296 ± 9 events min−1 m−2 |
| Excess of N1 channel | 43 ± 3 events min−1 m−2 | 70 ± 4 events min−1 m−2 |
| Air thickness to the Sun | 670 g cm−2 | 777 g cm−2 |
| Zenith angle to the Sun | 31|${^{\circ}_{.}}$|3 | 42|${^{\circ}_{.}}$|3 |
| Comments | First peak | Second peak |
| Observation day | 2011 March 7 | |
| Observatory . | Sierra Negra . | |
|---|---|---|
| Excess time | 19:57–20:04 UT | 20:36–21:03 UT |
| Statistical significance: L1 | 6.8σ >30 MeV† | 5.8σ >30 MeV‡ |
| Statistical significance: N1 | 3.0σ >30 MeV | 2.3σ >30 MeV |
| Excess of L1 channel | 201 ± 7 events min−1 m−2 | 296 ± 9 events min−1 m−2 |
| Excess of N1 channel | 43 ± 3 events min−1 m−2 | 70 ± 4 events min−1 m−2 |
| Air thickness to the Sun | 670 g cm−2 | 777 g cm−2 |
| Zenith angle to the Sun | 31|${^{\circ}_{.}}$|3 | 42|${^{\circ}_{.}}$|3 |
| Comments | First peak | Second peak |
| Observation day | 2011 March 7 | |
*Statistical significances of the excesses for each peak in the SN-SNT L1 and N1 rates. The excess count rates of the L1 and N1 channels at the peak time are given per unit area (m−2) and per unit time (min−1) in rows 5 and 6.
†The statistical significance was given during the eight minutes from 19:57 UT to 20:04 UT. The excesses of the one-minute value are estimated to be 5.8σ (at 19:58 UT) and 6.5σ (at 20:07 UT).
‡The start time of high-energy gamma-ray emission for the second SN-SNT peak was selected at 20:33 UT, when FERMI-GBM detected the start of a second peak in the soft gamma-ray emission.
| Observatory . | Sierra Negra . | |
|---|---|---|
| Excess time | 19:57–20:04 UT | 20:36–21:03 UT |
| Statistical significance: L1 | 6.8σ >30 MeV† | 5.8σ >30 MeV‡ |
| Statistical significance: N1 | 3.0σ >30 MeV | 2.3σ >30 MeV |
| Excess of L1 channel | 201 ± 7 events min−1 m−2 | 296 ± 9 events min−1 m−2 |
| Excess of N1 channel | 43 ± 3 events min−1 m−2 | 70 ± 4 events min−1 m−2 |
| Air thickness to the Sun | 670 g cm−2 | 777 g cm−2 |
| Zenith angle to the Sun | 31|${^{\circ}_{.}}$|3 | 42|${^{\circ}_{.}}$|3 |
| Comments | First peak | Second peak |
| Observation day | 2011 March 7 | |
| Observatory . | Sierra Negra . | |
|---|---|---|
| Excess time | 19:57–20:04 UT | 20:36–21:03 UT |
| Statistical significance: L1 | 6.8σ >30 MeV† | 5.8σ >30 MeV‡ |
| Statistical significance: N1 | 3.0σ >30 MeV | 2.3σ >30 MeV |
| Excess of L1 channel | 201 ± 7 events min−1 m−2 | 296 ± 9 events min−1 m−2 |
| Excess of N1 channel | 43 ± 3 events min−1 m−2 | 70 ± 4 events min−1 m−2 |
| Air thickness to the Sun | 670 g cm−2 | 777 g cm−2 |
| Zenith angle to the Sun | 31|${^{\circ}_{.}}$|3 | 42|${^{\circ}_{.}}$|3 |
| Comments | First peak | Second peak |
| Observation day | 2011 March 7 | |
*Statistical significances of the excesses for each peak in the SN-SNT L1 and N1 rates. The excess count rates of the L1 and N1 channels at the peak time are given per unit area (m−2) and per unit time (min−1) in rows 5 and 6.
†The statistical significance was given during the eight minutes from 19:57 UT to 20:04 UT. The excesses of the one-minute value are estimated to be 5.8σ (at 19:58 UT) and 6.5σ (at 20:07 UT).
‡The start time of high-energy gamma-ray emission for the second SN-SNT peak was selected at 20:33 UT, when FERMI-GBM detected the start of a second peak in the soft gamma-ray emission.
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