Fermi GRB 200412B: Global MASTER-Net observations report
Abstract
MASTER-Amur robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB 200412B ( Fermi GBM team, GCN 27547) errorbox 8581 sec after notice time and 8607 sec after trigger time at 2020-04-12 11:32:08 UT, with upper limit up to 18.1 mag. Observations started at twilight. The observations began at zenith distance = 62 deg. The sun altitude is -11.6 deg. The galactic latitude b = 21 deg., longitude l = 93 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1334873 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 8638 | 2020-04-12 11:32:08 | MASTER-Amur | (18h 42m 54.00s , +64d 01m 02.2s) | C | 60 | 17.7 | 8717 | 2020-04-12 11:33:27 | MASTER-Amur | (18h 36m 40.79s , +62d 00m 23.4s) | C | 60 | 17.7 | 8876 | 2020-04-12 11:36:06 | MASTER-Amur | (18h 51m 29.33s , +66d 00m 50.1s) | C | 60 | 17.8 | 8955 | 2020-04-12 11:37:26 | MASTER-Amur | (18h 42m 48.05s , +64d 01m 55.3s) | C | 60 | 18.1 | 9036 | 2020-04-12 11:38:46 | MASTER-Amur | (19h 01m 08.17s , +64d 00m 49.8s) | C | 60 | 17.9 | 9115 | 2020-04-12 11:40:06 | MASTER-Amur | (18h 36m 35.84s , +61d 59m 55.8s) | C | 60 | 18.0 | 9195 | 2020-04-12 11:41:25 | MASTER-Amur | (18h 53m 41.44s , +62d 00m 17.0s) | C | 60 | 17.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- April 2020
- Bibcode:
- 2020GCN.27549....1L