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Table A.1.

GRB 240218A optical-NIR photometry.

t − t0 [s] Mag (AB) σmag Fν [mJy] σFν [mJy] Telescope Instrument Filter
108 16.36 0.18 1.040 0.172 REM REMIR H
200 16.53 0.20 0.887 0.163 REM REMIR H
292 16.57 0.24 0.855 0.189 REM REMIR H
526 17.02 0.12 0.565 0.062 REM REMIR H
718 17.39 0.17 0.402 0.063 REM REMIR H
1006 17.72 0.14 0.297 0.038 REM REMIR H
1390 17.51 0.12 0.360 0.040 REM REMIR H
1775 17.77 0.13 0.283 0.034 REM REMIR H
2351 17.90 0.14 0.251 0.032 REM REMIR H
2900 18.36 0.21 0.164 0.032 REM REMIR H
9623 19.64 0.16 0.051 0.007 REM REMIR H
109200 19.67 0.02 0.049 0.91×10−3 LBT LUCI H
255947 21.12 0.05 0.013 0.60×10−3 TNG NICS H
258054 21.24 0.05 0.012 0.53×10−3 GTC EMIR H
355800 > 19.3 − < 0.063 − MPG GROND H
509760 22.19 0.16 4.74 × 10−3 0.70 × 10−3 TNG NICS H
1037460 23.70 0.26 1.20 × 10−3 0.29 × 10−3 VLT HAWK-I H
1468301 > 24.23 − < 0.74 × 10−3 − VLT HAWK-I H
108960 20.51 0.02 0.023 0.42 × 10−3 LBT LUCI J
355800 > 19.9 − < 0.036 − MPG GROND J
263373 22.11 0.09 5.20 × 10−3 0.43 × 10−3 GTC EMIR J
108780 19.42 0.07 0.062 0.004 LBT LUCI KS
355800 > 16.8 − < 0.631 − MPG GROND KS
266685 20.81 0.04 0.017 0.63 × 10−3 GTC EMIR KS
2160 > 20.33 − < 0.027 − MeerLICHT WFC u
1748 > 18.52 − < 0.142 − REM ROS2 g
2160 > 21.61 − < 8.24 × 10−3 − MeerLICHT WFC g
4051 > 22.30 − < 4.37 × 10−3 − VLT X-shooter g
9403 > 20.56 − < 0.022 − REM ROS2 g
1748 > 18.82 − < 0.108 − REM ROS2 r
2160 > 21.21 − < 0.012 − MeerLICHT WFC r
3592 > 23.00 − < 2.29 × 10−3 − VLT X-shooter r
9403 > 20.27 − < 0.027 − REM ROS2 r
93617 > 25.20 − < 3.02 × 10−4 − GTC OSIRIS r
94373 > 26.30 − < 1.10 × 10−4 − VLT FORS2 r
1748 > 18.20 − < 0.191 − REM ROS2 i
2160 > 20.54 − < 0.022 − MeerLICHT WFC i
9403 > 19.51 − < 0.057 − REM ROS2 i
90869 > 24.05 − < 8.71 × 10−4 − GTC OSIRIS i
1748 > 17.79 − < 0.278 − REM ROS2 z
2160 > 19.54 − < 0.055 − MeerLICHT WFC z
3750 > 21.50 − < 9.12 × 10−3 − VLT X-shooter z
9403 > 18.44 − < 0.153 − REM ROS2 z
10530 23.80 0.11 1.10 × 10−3 0.11 × 10−3 VLT FORS2 z
93419 > 23.20 − < 1.91 × 10−3 − GTC OSIRIS z

Notes. Results for the optical and NIR observations of GRB 240218A. Values without errors are upper limits at the 3σ c.l. The values are not corrected for Galactic extinction along the line of sight, E(B − V) = 0.04 mag (Schlafly & Finkbeiner 2011).

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