Table 2 Observations of GRB150101B. Upper limits are 3 σ

From: A luminous blue kilonova and an off-axis jet from a compact binary merger at z = 0.1341

MJD start TT0 [d] Instrument Band/filter Exposure [s] GRB counterpart fluxa Host fluxa
X-rays
 57025.1 1.5 Swift/XRT 0.3–10 keV 9880 <1.5 3.7
 57031.5 7.9 Chandra/ACIS-S 0.3–10 keV 14,870 1.10 ± 0.13 3.71 ± 0.16
 57063.2 39.6 Chandra/ACIS-S 0.3–10 keV 14,860 0.16 ± 0.06 3.58 ±  0.16
Optical/nIR
 57025.2b 1.7 Magellan/IMACS r 1200 23.01 ± 0.17
 57026.2b 2.7 Magellan/IMACS r 1200 23.53 ± 0.26
 57026.2 2.7 VLT/HAWK-I J 720 >22.5
 57034.3 10.7 Gemini/GMOS r 1710 >24.2
 57052.2 35.0 Swift/UVOT u 1022 19.86 ± 0.04
 57053.3 36.7 Swift/UVOT w2 398 21.30 ± 0.10
 57064.3 40.7 HST/WFC3 F160W 750 >25.1
 57064.3 40.7 HST/WFC3 F606W 1750 >25.6
 57115.0 97.8 VLT/HAWK-I J 2400 15.45 ± 0.02
 57358.5 335 DCT/DeVeny 300 g/mm 600 Spectrum
 57372.1 348.5 HST/WFC3 F160W 2400 15.14 ± 0.01
 57372.2 348.6 HST/WFC3 F606W 2500 16.67 ± 0.01
 58258.0 1226 DCT/LMI g 60 17.48 ± 0.01
 58258.0 1226 DCT/LMI r 60 16.50 ± 0.01
 58258.0 1226 DCT/LMI i 60 16.09 ± 0.01
 58258.0 1226 DCT/LMI z 60 15.80 ± 0.01
  1. aX-ray fluxes are in units of 10−13 erg cm−2 s−1 and the observed-to-unabsorbed correction factor is ~1.1. Optical and near-infrared magnitudes are in reported the AB system and corrected for Galactic extinction in the direction of the burst
  2. bref. 23