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GCN Circular 22854

Subject
GRB 180626A: LCO Haleakala observations
Date
2018-06-26T12:13:43Z (6 years ago)
From
Cristiano Guidorzi at Ferrara U,Italy <guidorzi@fe.infn.it>
R. Martone, C. Guidorzi (U. Ferrara), S. Kobayashi (LJMU), C.G. Mundell 
(U. Bath), A. Gomboc (U. Nova Gorica), I.A. Steele (LJMU), A. Cucchiara 
(U. of Virgin Islands) on behalf of a large collaboration report:

The LCO 2-m unit at Haleakala Observatory (Hawaii), former FTN, began 
observing Swift and INTEGRAL GRB 180626A (Evans et al. GCN 22850; Gotz 
et al. GCN 22851) on June 26, 08:41:11 UT (20 min after the GRB trigger 
time) with the SDSS ri filters. The optical counterpart (Evans et al.) 
is clearly detected� with the following magnitudes:

Mid Time since GRB��� Exposure�������� Filter������� Magnitude
(hrs)����������������� (s)
------------------------------------------------------------------
0.424���������������� 5x120����������� SDSS-R������� 20.96 +- 0.12
0.617���������������� 5x120����������� SDSS-I������� 20.53 +- 0.12
------------------------------------------------------------------

as calibrated against nearby SDSS objects.
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