Open Access
Table B.1.
Summary of the afterglow observations detected by GRANDMA.
| Source | Obs date | Time | δt (h) | Exposure | Filter | Magnitude | Telescope/ |
|---|---|---|---|---|---|---|---|
| Observer | |||||||
| GRB220403B | 2022-04-03 | 20:50:23 | 0.13 | 5 x 20 s | Clear | 18.61 ± 0.06 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 20:52:16 | 0.17 | 5 x 20 s | Clear | 18.73 ± 0.07 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 20:54:10 | 0.2 | 5 x 20 s | Clear | 18.67 ± 0.06 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 20:56:03 | 0.23 | 5 x 20 s | Clear | 18.87 ± 0.08 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:03:36 | 0.35 | 20 x 20 s | g′ | 18.98 ± 0.08 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:11:29 | 0.48 | 20 x 20 s | r′ | 19.40 ± 0.10 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:16:52 | 0.57 | 5 x 20 s | Clear | 18.84 ± 0.08 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:18:44 | 0.6 | 5 x 20 s | Clear | 19.11 ± 0.10 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:20:37 | 0.63 | 5 x 20 s | Clear | 18.86 ± 0.08 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:22:31 | 0.67 | 5 x 20 s | Clear | 19.09 ± 0.09 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:27:38 | 0.75 | 20 x 20 s | g′ | 18.95 ± 0.08 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:35:29 | 0.88 | 20 x 20 s | r′ | 19.94 ± 0.15 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:43:42 | 1.02 | 20 x 20 s | Clear | 19.52 ± 0.09 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:51:40 | 1.15 | 20 x 20 s | g′ | 19.56 ± 0.15 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 21:59:33 | 1.28 | 20 x 20 s | r′ | > 19.6 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 22:07:47 | 1.42 | 20 x 20 s | Clear | 19.68 ± 0.10 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 22:11:35 | 1.48 | 20 x 20 s | r′ | 20.11 ± 0.12 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 22:15:44 | 1.55 | 20 x 20 s | g′ | > 19.6 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 22:23:38 | 1.68 | 20 x 20 s | r′ | > 19.8 | BJP/ALi-50 |
| GRB220403B | 2022-04-03 | 22:31:51 | 1.81 | 20 x 20 s | Clear | 19.91 ± 0.11 | BJP/ALi-50 |
| GRB220403B | 2022-04-04 | 13:44:06 | 17.67 | 15 x 300 s | Clear | > 21 | SNOVA |
| GRB220403B | 2022-04-04 | 20:40:18 | 23.97 | 300 s | R | 22.22 ± 0.12 | UBAI/AZT-22 |
| GRB220403B | 2022-04-04 | 21:25:43 | 24.72 | 24 x 32 s | B | > 21.0 | KNC-T-CAT |
| GRB220403B | 2022-04-04 | 21:25:43 | 24.72 | 24 x 32 s | G | > 21.1 | KNC-T-CAT |
| GRB220403B | 2022-04-04 | 21:25:43 | 24.72 | 24 x 32 s | R | > 20.9 | KNC-T-CAT |
| GRB 220427A | 2022-04-27 | 21:04:04 | 0.05833 | 30 s | Clear | 16.32 ± 0.22 | TAROT/TRE |
| GRB 220427A | 2022-04-27 | 21:04:43 | 0.06916 | 30 s | Clear | 15.74 ± 0.18 | TAROT/TRE |
| GRB 220427A | 2022-04-27 | 21:05:21 | 0.07972 | 30 s | Clear | 16.04 ± 0.18 | TAROT/TRE |
| GRB 220427A | 2022-04-27 | 21:05:59 | 0.09028 | 30 s | Clear | 16.33 ± 0.19 | TAROT/TRE |
| GRB 220427A | 2022-04-27 | 21:06:37 | 0.10083 | 30 s | Clear | 16.51 ± 0.16 | TAROT/TRE |
| GRB 220427A | 2022-04-27 | 21:07:36 | 0.11722 | 30 s | Clear | 16.77 ± 0.11 | TAROT/TRE |
| GRB 220427A | 2022-04-27 | 21:09:15 | 0.14472 | 30 s | Clear | 17.26 ± 0.35 | TAROT/TRE |
| GRB 220427A | 2022-04-27 | 21:17:26 | 0.28111 | 30 s | Clear | 18.0 ± 0.3 | TAROT/TRE |
| GRB 220427A | 2022-04-27 | 22:08:04 | 1.1250 | 15 × 120 s | Clear | 20.09 ± 0.12 | Les Makes/T60 |
| GRB 220427A | 2022-04-27 | 22:38:32 | 1.6327 | 15 × 120 s | Clear | 20.44 ± 0.14 | Les Makes/T60 |
| GRB 220427A | 2022-04-27 | 23:41:31 | 2.6825 | 15 × 120 s | Clear | 21.69 ± 0.22 | Les Makes/T60 |
| GRB 220427A | 2022-04-27 | 00:52:03 | 3.8581 | 15 × 120 s | Clear | 21.64 ± 0.21 | Les Makes/T60 |
| GRB220514A | 2022-05-14 | 13:58:35 | 1.57 | 3 x 300 s | r′ | 18.9 ± 0.1 | Xinglong-TNT |
| GRB220514A | 2022-05-14 | 20:04:11 | 7.66 | 9 x 60 s | R | > 17.3 | Abastumani/T70 |
| GRB220514A | 2022-05-14 | 20:21:43 | 7.95 | 45 x 60 s | Clear | 19.9 ± 0.25 | MOSS |
| GRB220514A | 2022-05-14 | 20:38:27 | 8.23 | 15 x 120 s | R | >19.7 | KNC-HAO |
| GRB220514A | 2022-05-14 | 20:40:25 | 8.50 | 15 x 120 s | Clear | > 19 | FRAM-CTA-N |
| GRB220514A | 2022-05-14 | 21:59:16 | 9.58 | 10 x 150 s | i′ | 20.3 ± 0.1 | 2.2m CAHA/CAFOS |
| GRB220514A | 2022-05-15 | 03:27:54 | 15.06 | 17 x 180 s | Rc | > 19.6 | KNC-iT21 |
Note: δt is the delay between the beginning of the observation and the public detection discovery. In this table, only detection magnitudes of each observational epoch are reported. Magnitudes are given in the AB system (calibrated using PS1 or USNOB1) and are not correct for Galactic extinction with calibration.
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