GRB 170510A: LCO Siding Springs early observations
Abstract
We began observing Fermi GRB 170510A (Bissaldi et al. GCN 21081) on May 10, 12:14 UT (7.0 hours since the GRB) with a 1-m LCO unit with the SDSS i filter. Within the Swift-XRT error circle (Cholden-Brown et al. GCN 21103) we clearly detect the optical afterglow candidate (Cucchiara et al. GCN 21087; Lipunov et al. GCN 21091) at the following position: RA(J2000) = 10:40:36.89 DEC(J2000)= -39:12:45.2 with an error radius of 1.0", with the following value: Mid Time Exposure Filter Magnitude (AB) (hours) (s) ------------------------------------------------------- 7.1 5x120 SDSS-I 18.60 +- 0.07 ------------------------------------------------------- as calibrated against nearby UCAC4 stars.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- May 2017
- Bibcode:
- 2017GCN.21110....1G