GRB 180620A: LCO McDonald observations
Abstract
The LCO 1-m unit at McDonald Observatory began observing Swift GRB 180620A (Evans et al. GCN 22798) on June 20, 08:55 UT (20 min since the GRB trigger time) with the SDSS griz filters. The optical counterpart (Evans et al.; Butler et al. GCN 22799; Elenin et al. GCN 22800; Tyurina et al. GCN 22801) is clearly detected in each individual frame with the following magnitudes: Mid Time since GRB Exposure; Filter; Magnitude(hrs);------------------------------------------------------------------0.349 1x120 SDSS-R 18.63 +- 0.04 0.583 1x120 SDSS-I 18.27 +- 0.04 ------------------------------------------------------------------ as calibrated against nearby PanSTARRS objects.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- June 2018
- Bibcode:
- 2018GCN.22803....1G