Fermi trigger No 644155206: Global MASTER-Net observations report
Abstract
MASTER-IAC robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB210531.50 (trigger No 644155206,09h 03m 09.60s , +03d 31m 12.0s, R=1) errorbox 31477 sec after notice time and 31529 sec after trigger time at 2021-05-31 20:45:30 UT, with upper limit up to 18.9 mag. Observations started at twilight. The observations began at zenith distance = 53 deg. The sun altitude is -10.7 deg. The galactic latitude b = 31 deg., longitude l = 226 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1625124 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 31619 | 2021-05-31 20:45:30 | MASTER-IAC | (09h 01m 58.63s , +03d 35m 59.8s) | C | 180 | 16.3 | 31889 | 2021-05-31 20:45:30 | MASTER-IAC | (09h 01m 58.61s , +03d 35m 59.6s) | C | 720 | 17.8 | Coadd 31619 | 2021-05-31 20:45:30 | MASTER-IAC | (09h 01m 09.51s , +03d 42m 42.6s) | C | 180 | 16.3 | 31889 | 2021-05-31 20:45:30 | MASTER-IAC | (09h 01m 09.51s , +03d 42m 42.7s) | C | 720 | 17.5 | Coadd 31819 | 2021-05-31 20:48:51 | MASTER-IAC | (09h 02m 03.56s , +03d 34m 51.8s) | C | 180 | 17.1 | 31999 | 2021-05-31 20:48:51 | MASTER-IAC | (09h 02m 03.55s , +03d 34m 51.8s) | C | 540 | 18.0 | Coadd 31819 | 2021-05-31 20:48:51 | MASTER-IAC | (09h 01m 14.60s , +03d 41m 35.0s) | C | 180 | 16.7 | 31999 | 2021-05-31 20:48:51 | MASTER-IAC | (09h 01m 14.60s , +03d 41m 35.0s) | C | 540 | 17.6 | Coadd 32019 | 2021-05-31 20:52:10 | MASTER-IAC | (09h 01m 58.25s , +03d 33m 47.5s) | C | 180 | 17.5 | 32019 | 2021-05-31 20:52:10 | MASTER-IAC | (09h 01m 09.13s , +03d 40m 29.8s) | C | 180 | 17.0 | 32219 | 2021-05-31 20:55:31 | MASTER-IAC | (09h 02m 03.70s , +03d 33m 45.0s) | C | 180 | 17.8 | 32219 | 2021-05-31 20:55:31 | MASTER-IAC | (09h 01m 14.66s , +03d 40m 26.7s) | C | 180 | 17.4 | 32419 | 2021-05-31 20:58:50 | MASTER-IAC | (09h 10m 31.15s , +05d 33m 53.4s) | C | 180 | 18.0 | 32419 | 2021-05-31 20:58:51 | MASTER-IAC | (09h 02m 25.96s , +05d 39m 31.3s) | C | 180 | 17.8 | 32619 | 2021-05-31 21:02:10 | MASTER-IAC | (09h 10m 31.20s , +05d 32m 18.4s) | C | 180 | 18.4 | 32619 | 2021-05-31 21:02:10 | MASTER-IAC | (09h 02m 25.88s , +05d 37m 56.6s) | C | 180 | 18.1 | 32819 | 2021-05-31 21:05:30 | MASTER-IAC | (09h 10m 34.22s , +05d 33m 37.5s) | C | 180 | 18.6 | 32819 | 2021-05-31 21:05:30 | MASTER-IAC | (09h 02m 28.72s , +05d 39m 15.9s) | C | 180 | 18.1 | 33019 | 2021-05-31 21:08:50 | MASTER-IAC | (09h 14m 27.85s , +03d 32m 58.2s) | C | 180 | 18.7 | 33019 | 2021-05-31 21:08:50 | MASTER-IAC | (09h 06m 23.72s , +03d 38m 36.5s) | C | 180 | 18.3 | 33219 | 2021-05-31 21:12:10 | MASTER-IAC | (09h 14m 28.75s , +03d 33m 56.8s) | C | 180 | 18.7 | 33219 | 2021-05-31 21:12:10 | MASTER-IAC | (09h 06m 24.31s , +03d 39m 35.8s) | C | 180 | 18.4 | 33419 | 2021-05-31 21:15:30 | MASTER-IAC | (09h 14m 35.97s , +03d 32m 55.5s) | C | 180 | 18.9 | 33419 | 2021-05-31 21:15:30 | MASTER-IAC | (09h 06m 31.18s , +03d 38m 34.9s) | C | 180 | 18.5 | 36021 | 2021-05-31 21:58:53 | MASTER-IAC | (09h 06m 36.51s , +03d 33m 01.6s) | C | 180 | 18.5 | 36021 | 2021-05-31 21:58:53 | MASTER-IAC | (08h 58m 30.18s , +03d 38m 38.2s) | C | 180 | 17.9 | 36221 | 2021-05-31 22:02:12 | MASTER-IAC | (09h 06m 30.00s , +03d 32m 24.2s) | C | 180 | 18.3 | 36221 | 2021-05-31 22:02:12 | MASTER-IAC | (08h 58m 23.57s , +03d 38m 00.4s) | C | 180 | 17.8 | 36421 | 2021-05-31 22:05:32 | MASTER-IAC | (09h 06m 29.26s , +03d 33m 22.4s) | C | 180 | 18.4 | 36421 | 2021-05-31 22:05:32 | MASTER-IAC | (08h 58m 22.70s , +03d 38m 58.4s) | C | 180 | 17.6 | 36621 | 2021-05-31 22:08:52 | MASTER-IAC | (09h 06m 35.13s , +03d 32m 20.8s) | C | 180 | 18.3 | 36621 | 2021-05-31 22:08:52 | MASTER-IAC | (08h 58m 28.54s , +03d 37m 55.9s) | C | 180 | 17.6 | 36822 | 2021-05-31 22:12:13 | MASTER-IAC | (09h 06m 30.15s , +03d 31m 18.9s) | C | 180 | 18.2 | 36822 | 2021-05-31 22:12:13 | MASTER-IAC | (08h 58m 23.44s , +03d 36m 53.2s) | C | 180 | 17.4 | 37022 | 2021-05-31 22:15:33 | MASTER-IAC | (09h 06m 35.84s , +03d 31m 35.1s) | C | 180 | 18.2 | 37022 | 2021-05-31 22:15:33 | MASTER-IAC | (08h 58m 28.97s , +03d 37m 08.8s) | C | 180 | 16.8 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- May 2021
- Bibcode:
- 2021GCN.30107....1L