# Observed magnitude of GW170817 (compiled by Villar et al. 2017) # # The data are not corrected for extinction # One can apply following corrections # E(B-V) = 0.10 # Ag = 3.793 * E(B-V) # Ar = 2.751 * E(B-V) # Ai = 2.086 * E(B-V) # Az = 1.479 * E(B-V) # Aj = 0.902 * E(B-V) # Ah = 0.576 * E(B-V) # Ak = 0.367 * E(B-V) # g # MJD t (day) Telescope info filter mag magerr 57983.006 0.477 LDSS Magellan g 17.41 0.02 0 \citeauthor{drout2017light} *\\ 57983.011 0.482 LDSS Magellan g 17.41 0.04 0 \citeauthor{drout2017light} *\\ 57983.014 0.485 LDSS Magellan g 17.39 0.02 0 \citeauthor{drout2017light} *\\ 57983.050 0.521 ROS2 REM g 17.32 0.07 0 \citeauthor{pian2017spectroscopic} *\\ 57983.401 0.872 Sinistro LCO1m g 17.28 0.12 -0.04 \citeauthor{arcavi2017optical} *\\ 57983.745 1.216 Sinistro LCO1m g 18.05 0.12 -0.07 \citeauthor{arcavi2017optical} *\\ 57983.968 1.439 T80Cam T80S g 18.43 0.06 0 \citeauthor{evans2017swift} *\\ 57983.969 1.440 GROND LaSilla g 18.49 0.04 0 \citeauthor{smartt2017kilonova} *\\ 57983.974 1.445 T80Cam T80S g 18.51 0.04 0 \citeauthor{diaz2017observations} *\\ 57983.975 1.446 T80Cam T80S g 18.48 0.04 0 \citeauthor{diaz2017observations} *\\ 57983.976 1.447 T80Cam T80S g 18.61 0.04 0 \citeauthor{diaz2017observations} *\\ 57983.979 1.450 DECam Blanco/CTIO g 18.66 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57983.980 1.451 Sinistro LCO1m g 18.61 0.14 -0.13 \citeauthor{arcavi2017optical} *\\ 57983.981 1.452 LDSS Magellan g 18.61 0.03 0 \citeauthor{drout2017light} *\\ 57983.984 1.455 T80Cam T80S g 18.58 0.03 0 \citeauthor{diaz2017observations} *\\ 57983.985 1.456 T80Cam T80S g 18.55 0.03 0 \citeauthor{diaz2017observations} *\\ 57983.986 1.457 T80Cam T80S g 18.61 0.04 0 \citeauthor{diaz2017observations} *\\ 57983.988 1.459 LDSS Magellan g 18.66 0.03 0 \citeauthor{drout2017light} *\\ 57983.994 1.465 T80Cam T80S g 18.65 0.03 0 \citeauthor{diaz2017observations} *\\ 57983.995 1.466 T80Cam T80S g 18.60 0.04 0 \citeauthor{diaz2017observations} *\\ 57983.996 1.467 T80Cam T80S g 18.63 0.04 0 \citeauthor{diaz2017observations} *\\ 57984.004 1.475 T80Cam T80S g 18.69 0.04 0 \citeauthor{diaz2017observations} *\\ 57984.005 1.476 T80Cam T80S g 18.67 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.007 1.478 T80Cam T80S g 18.62 0.04 0 \citeauthor{diaz2017observations} *\\ 57984.014 1.485 T80Cam T80S g 18.68 0.04 0 \citeauthor{diaz2017observations} *\\ 57984.016 1.487 T80Cam T80S g 18.67 0.04 0 \citeauthor{diaz2017observations} *\\ 57984.017 1.488 T80Cam T80S g 18.57 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.055 1.526 E2V4kx4kccd Swope g 18.49 0.12 0 \citeauthor{SwopeDiscovery} *\\ 57984.309 1.780 Tripol5 B\C g 18.80 0.07 0 \citeauthor{utsumi2017j} *\\ 57984.369 1.840 Sinistro LCO1m g 19.28 0.17 -0.25 \citeauthor{arcavi2017optical} *\\ 57984.758 2.229 Sinistro LCO1m g 19.93 0.21 -0.51 \citeauthor{arcavi2017optical} *\\ 57984.761 2.232 Sinistro LCO1m g 19.80 0.20 -1.44 \citeauthor{arcavi2017optical} *\\ 57984.960 2.431 ROS2 REM g 20.31 0.28 0 \citeauthor{pian2017spectroscopic} *\\ 57984.969 2.440 GROND LaSilla g 20.19 0.11 0 \citeauthor{smartt2017kilonova} *\\ 57984.978 2.449 DECam Blanco/CTIO g 20.21 0.05 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57985.017 2.488 Sinistro LCO1m g 20.15 0.33 -0.66 \citeauthor{arcavi2017optical} *\\ 57985.974 3.445 GROND LaSilla g 21.13 0.16 0 \citeauthor{smartt2017kilonova} *\\ 57985.986 3.457 DECam Blanco/CTIO g 20.93 0.08 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57986.001 3.472 E2V4kx4kccd Swope g 20.77 0.05 0 \citeauthor{SwopeDiscovery} *\\ 57986.020 3.491 XS VLT g 20.94 0.06 0 \citeauthor{pian2017spectroscopic} *\\ 57986.039 3.510 GMOS Gemini-S g 20.90 0.01 0 \citeauthor{troja2017x} *\\ 57986.974 4.445 GROND LaSilla g 21.58 0.22 0 \citeauthor{smartt2017kilonova} *\\ 57986.991 4.462 DECam Blanco/CTIO g 21.73 0.11 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57987.990 5.461 OmegaCam VST g 22.51 0.12 0 \citeauthor{pian2017spectroscopic} *\\ 57987.990 5.461 DECam Blanco/CTIO g 22.03 0.42 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57988.996 6.467 DECam Blanco/CTIO g 22.08 0.52 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ #57989.235 6.706 LRIS Keck-I g $>$22.20 - 0 \citeauthor{drout2017light} *\\ 57989.997 7.468 DECam Blanco/CTIO g 23.28 0.34 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ # r # MJD t (day) Telescope info filter mag magerr 57982.993 0.464 AltaU47+ Prompt5 r 17.46 0.03 0 \citeauthor{valenti2017discovery} *\\ 57983.000 0.471 LDSS Magellan r 17.33 0.02 0 \citeauthor{drout2017light} *\\ 57983.028 0.499 AltaU47+ Prompt5 r 17.56 0.04 0 \citeauthor{valenti2017discovery} *\\ 57983.050 0.521 ROS2 REM r 17.14 0.08 0 \citeauthor{pian2017spectroscopic} *\\ 57983.405 0.876 Sinistro LCO1m r 17.20 0.02 -0.02 \citeauthor{arcavi2017optical} *\\ 57983.741 1.212 Sinistro LCO1m r 17.75 0.02 -0.03 \citeauthor{arcavi2017optical} *\\ 57983.758 1.229 - 1.5B r 17.89 0.03 0 \citeauthor{smartt2017kilonova} *\\ 57983.969 1.440 GROND LaSilla r 17.99 0.01 0 \citeauthor{smartt2017kilonova} *\\ 57983.976 1.447 Sinistro LCO1m r 17.98 0.08 -0.04 \citeauthor{arcavi2017optical} *\\ 57983.977 1.448 T80Cam T80S r 17.93 0.02 0 \citeauthor{diaz2017observations} *\\ 57983.978 1.449 T80Cam T80S r 17.97 0.02 0 \citeauthor{diaz2017observations} *\\ 57983.978 1.449 DECam Blanco/CTIO r 18.04 0.02 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57983.979 1.450 T80Cam T80S r 17.94 0.02 0 \citeauthor{diaz2017observations} *\\ 57983.980 1.451 ROS2 REM r 17.68 0.13 0 \citeauthor{pian2017spectroscopic} *\\ 57983.981 1.452 LDSS Magellan r 17.91 0.03 0 \citeauthor{drout2017light} *\\ 57983.987 1.458 T80Cam T80S r 17.95 0.02 0 \citeauthor{diaz2017observations} *\\ 57983.988 1.459 T80Cam T80S r 17.98 0.02 0 \citeauthor{diaz2017observations} *\\ 57983.990 1.461 T80Cam T80S r 17.99 0.03 0 \citeauthor{diaz2017observations} *\\ 57983.991 1.462 AltaU47+ Prompt5 r 18.00 0.06 0 \citeauthor{valenti2017discovery} *\\ 57983.997 1.468 T80Cam T80S r 18.02 0.03 0 \citeauthor{diaz2017observations} *\\ 57983.999 1.470 T80Cam T80S r 18.02 0.02 0 \citeauthor{diaz2017observations} *\\ 57984.000 1.471 XS VLT r 17.95 0.02 0 \citeauthor{pian2017spectroscopic} *\\ 57984.008 1.479 T80Cam T80S r 18.01 0.02 0 \citeauthor{diaz2017observations} *\\ 57984.009 1.480 T80Cam T80S r 18.01 0.02 0 \citeauthor{diaz2017observations} *\\ 57984.010 1.481 T80Cam T80S r 18.07 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.010 1.481 T80Cam Prompt5 r 18.29 0.06 0 \citeauthor{valenti2017discovery} *\\ 57984.018 1.489 T80Cam T80S r 18.03 0.02 0 \citeauthor{diaz2017observations} *\\ 57984.019 1.490 T80Cam T80S r 18.05 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.020 1.491 T80Cam T80S r 18.04 0.02 0 \citeauthor{diaz2017observations} *\\ 57984.047 1.518 E2V4kx4kccd Swope r 17.98 0.02 0 \citeauthor{SwopeDiscovery} *\\ 57984.309 1.780 Tripol5 B\C r 18.26 0.04 0 \citeauthor{utsumi2017j} *\\ 57984.365 1.836 Sinistro LCO1m r 18.34 0.11 -0.06 \citeauthor{arcavi2017optical} *\\ 57984.738 2.209 Sinistro LCO1m r 18.93 0.10 -0.10 \citeauthor{arcavi2017optical} *\\ 57984.741 2.212 Sinistro LCO1m r 18.90 0.11 -0.10 \citeauthor{arcavi2017optical} *\\ 57984.761 2.232 GFC Pan-STARRS r 18.80 0.07 0 \citeauthor{smartt2017kilonova} *\\ 57984.960 2.431 ROS2 REM r 19.18 0.10 0 \citeauthor{pian2017spectroscopic} *\\ 57984.968 2.439 Sinistro LCO1m r 19.10 0.11 -0.11 \citeauthor{arcavi2017optical} *\\ 57984.969 2.440 GROND LaSilla r 19.13 0.17 0 \citeauthor{smartt2017kilonova} *\\ 57984.969 2.440 FORS VLT r 18.77 0.04 0 \citeauthor{tanvir2017emergence} *\\ 57984.976 2.447 AltaU47+ Prompt5 r 19.34 0.08 0 \citeauthor{valenti2017discovery} *\\ 57984.977 2.448 DECam Blanco/CTIO r 19.03 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57984.978 2.449 AltaU47+ Prompt5 r 19.29 0.12 0 \citeauthor{valenti2017discovery} *\\ 57984.980 2.451 - RC-1000 r 19.12 0.06 0 \citeauthor{pozanenko2017grb170817a} *\\ 57984.985 2.456 T80Cam T80S r 18.78 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.985 2.456 T80Cam T80S r 19.15 0.06 0 \citeauthor{diaz2017observations} *\\ 57985.009 2.480 IMACS Magellan r 18.93 0.02 0 \citeauthor{drout2017light} *\\ 57985.357 2.828 Sinistro LCO1m r 19.36 0.09 -0.15 \citeauthor{arcavi2017optical} *\\ 57985.726 3.197 Sinistro LCO1m r 19.75 0.12 -0.22 \citeauthor{arcavi2017optical} *\\ 57985.776 3.247 - 1.5B r 19.52 0.13 0 \citeauthor{smartt2017kilonova} *\\ 57985.973 3.444 - RC-1000 r 20.04 0.08 0 \citeauthor{pozanenko2017grb170817a} *\\ 57985.974 3.445 GROND LaSilla r 19.81 0.02 0 \citeauthor{smartt2017kilonova} *\\ 57985.979 3.450 FORS VLT r 19.28 0.01 0 \citeauthor{tanvir2017emergence} *\\ 57985.985 3.456 DECam Blanco/CTIO r 19.29 0.04 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57986.003 3.474 AltaU47+ Prompt5 r 20.18 0.10 0 \citeauthor{valenti2017discovery} *\\ 57986.008 3.479 E2V4kx4kccd Swope r 19.82 0.09 0 \citeauthor{SwopeDiscovery} *\\ 57986.020 3.491 XS VLT r 19.74 0.02 0 \citeauthor{pian2017spectroscopic} *\\ 57986.039 3.510 GMOS Gemini-S r 19.66 0.01 0 \citeauthor{troja2017x} *\\ 57986.715 4.186 Sinistro LCO1m r 20.30 0.31 -0.39 \citeauthor{arcavi2017optical} *\\ 57986.969 4.440 Sinistro LCO1m r 20.25 0.28 -0.37 \citeauthor{arcavi2017optical} *\\ 57986.974 4.445 GROND LaSilla r 20.53 0.05 0 \citeauthor{smartt2017kilonova} *\\ 57986.984 4.455 DECam Blanco/CTIO r 20.25 0.05 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57986.989 4.460 VIMOS VLT r 19.86 0.01 0 \citeauthor{tanvir2017emergence} o\\ 57986.997 4.467 E2V4kx4kccd Swope r 20.58 0.12 0 \citeauthor{SwopeDiscovery} *\\ 57987.004 4.475 AltaU47+ Prompt5 r 20.92 0.12 0 \citeauthor{valenti2017discovery} o\\ 57987.358 4.829 Sinistro LCO1m r 20.69 0.33 -0.62 \citeauthor{arcavi2017optical} *\\ 57987.969 5.440 FORS VLT r 20.39 0.03 0 \citeauthor{tanvir2017emergence} *\\ 57987.983 5.454 DECam Blanco/CTIO r 20.79 0.24 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57988.020 5.491 XS VLT r 20.74 0.03 0 \citeauthor{pian2017spectroscopic} *\\ 57988.980 6.451 OmegaCam VST r 21.31 0.07 0 \citeauthor{pian2017spectroscopic} *\\ 57988.985 6.456 DECam Blanco/CTIO r 20.95 0.35 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ #57989.983 7.454 GROND LaSilla r $>$20.60 - 0 \citeauthor{smartt2017kilonova} *\\ 57989.987 7.458 DECam Blanco/CTIO r 21.23 0.11 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57990.039 7.510 GMOS Gemini-S r 21.74 0.04 0 \citeauthor{troja2017x} *\\ 57990.989 8.460 VIMOS VLT r 21.75 0.05 0 \citeauthor{tanvir2017emergence} *\\ 57990.997 8.468 DECam Blanco/CTIO r 21.95 0.18 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57991.989 9.460 VIMOS VLT r 22.20 0.04 0 \citeauthor{tanvir2017emergence} *\\ 57992.989 10.460 VIMOS VLT r 22.45 0.07 0 \citeauthor{tanvir2017emergence} *\\ 57994.969 12.440 VIMOS VLT r 23.12 0.31 0 \citeauthor{tanvir2017emergence} *\\ #57998.999 16.470 GMOS Gemini-S r $>$21.18 - 0 \citeauthor{kasliwal2017illuminating} *\\ # i # MJD t (day) Telescope info filter mag magerr 57982.981 0.452 E2V4kx4kccd Swope i 17.48 0.02 0 \citeauthor{SwopeDiscovery} *\\ 57983.003 0.474 DECam Blanco/CTIO i 17.48 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57983.050 0.521 ROS2 REM i 16.98 0.05 0 \citeauthor{pian2017spectroscopic} *\\ 57983.231 0.702 GFC Pan-STARRS i 17.24 0.06 0 \citeauthor{smartt2017kilonova} *\\ 57983.550 1.021 10k10kccd AST3-2 i 17.14 0.13 -0.09 \citeauthor{hu2017optical} *\\ 57983.594 1.065 10k10kccd AST3-2 i 17.48 0.07 -0.13 \citeauthor{hu2017optical} *\\ 57983.625 1.096 10k10kccd AST3-2 i 17.58 0.09 -0.14 \citeauthor{hu2017optical} *\\ 57983.969 1.440 GROND LaSilla i 17.85 0.05 0 \citeauthor{smartt2017kilonova} *\\ 57983.972 1.443 Sinistro LCO1m i 17.88 0.10 -0.25 \citeauthor{arcavi2017optical} *\\ 57983.978 1.449 DECam Blanco/CTIO i 17.78 0.02 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57983.980 1.451 LDSS Magellan i 17.77 0.03 0 \citeauthor{drout2017light} *\\ 57983.980 1.451 T80Cam T80S i 17.74 0.03 0 \citeauthor{diaz2017observations} *\\ 57983.982 1.452 T80Cam T80S i 17.80 0.03 0 \citeauthor{diaz2017observations} *\\ 57983.983 1.454 T80Cam T80S i 17.81 0.03 0 \citeauthor{diaz2017observations} *\\ 57983.991 1.462 T80Cam T80S i 17.78 0.02 0 \citeauthor{diaz2017observations} *\\ 57983.992 1.463 T80Cam T80S i 17.79 0.02 0 \citeauthor{diaz2017observations} *\\ 57983.993 1.464 T80Cam T80S i 17.80 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.001 1.472 T80Cam T80S i 17.74 0.02 0 \citeauthor{diaz2017observations} *\\ 57984.002 1.473 T80Cam T80S i 17.86 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.003 1.474 T80Cam T80S i 17.85 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.011 1.482 T80Cam T80S i 17.82 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.012 1.483 T80Cam T80S i 17.77 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.013 1.484 T80Cam T80S i 17.87 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.021 1.492 T80Cam T80S i 17.83 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.022 1.493 T80Cam T80S i 17.90 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.023 1.494 T80Cam T80S i 17.88 0.03 0 \citeauthor{diaz2017observations} *\\ 57984.044 1.515 E2V4kx4kccd Swope i 17.80 0.02 0 \citeauthor{SwopeDiscovery} *\\ 57984.231 1.702 GFC Pan-STARRS i 17.87 0.06 0 \citeauthor{smartt2017kilonova} *\\ 57984.309 1.780 Tripol5 B\C i 18.19 0.06 0 \citeauthor{utsumi2017j} *\\ 57984.361 1.832 Sinistro LCO1m i 18.07 0.13 -0.30 \citeauthor{arcavi2017optical} *\\ 57984.745 2.216 Sinistro LCO1m i 18.33 0.12 -0.41 \citeauthor{arcavi2017optical} *\\ 57984.748 2.219 Sinistro LCO1m i 18.26 0.15 -0.38 \citeauthor{arcavi2017optical} *\\ 57984.969 2.440 GROND LaSilla i 18.58 0.04 0 \citeauthor{smartt2017kilonova} *\\ 57984.975 2.446 Sinistro LCO1m i 18.61 0.15 -0.56 \citeauthor{arcavi2017optical} *\\ 57984.976 2.447 DECam Blanco/CTIO i 18.38 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57984.978 2.449 Sinistro LCO1m i 18.46 0.10 -0.47 \citeauthor{arcavi2017optical} *\\ 57984.988 2.459 DK1.5 VLT i 18.37 0.03 0 \citeauthor{tanvir2017emergence} *\\ 57985.000 2.471 IMACS Magellan i 18.36 0.02 0 \citeauthor{drout2017light} *\\ 57985.002 2.473 Sinistro LCO1m i 18.46 0.10 -0.46 \citeauthor{arcavi2017optical} *\\ 57985.006 2.477 Sinistro LCO1m i 18.45 0.11 -0.46 \citeauthor{arcavi2017optical} *\\ 57985.231 2.702 GFC Pan-STARRS i 18.44 0.09 0 \citeauthor{smartt2017kilonova} *\\ 57985.364 2.835 Sinistro LCO1m i 18.53 0.13 -0.50 \citeauthor{arcavi2017optical} *\\ 57985.367 2.838 Sinistro LCO1m i 18.62 0.14 -0.57 \citeauthor{arcavi2017optical} *\\ 57985.391 2.862 Sinistro LCO1m i 18.70 0.18 -0.63 \citeauthor{arcavi2017optical} *\\ 57985.395 2.866 Sinistro LCO1m i 18.63 0.15 -0.57 \citeauthor{arcavi2017optical} *\\ #57985.672 3.143 10k10k ccd AST3-2 i $>$18.67 - 0 \citeauthor{hu2017optical} *\\ 57985.733 3.204 Sinistro LCO1m i 18.84 0.20 -0.57 \citeauthor{arcavi2017optical} *\\ 57985.736 3.207 Sinistro LCO1m i 18.76 0.15 -0.68 \citeauthor{arcavi2017optical} *\\ 57985.974 3.445 GROND LaSilla i 19.03 0.01 0 \citeauthor{smartt2017kilonova} *\\ 57985.984 3.455 DECam Blanco/CTIO i 18.73 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57986.005 3.476 E2V4kx4kccd Swope i 18.92 0.05 0 \citeauthor{SwopeDiscovery} *\\ 57986.039 3.510 GMOS Gemini-S i 18.93 0.01 0 \citeauthor{troja2017x} *\\ #57986.236 3.707 GFC Pan-STARRS i $>$17.80 - 0 \citeauthor{smartt2017kilonova} *\\ #57986.651 4.122 10k10k ccd AST3-2 i $>$18.38 - 0 \citeauthor{hu2017optical} *\\ 57986.974 4.445 GROND LaSilla i 19.51 0.04 0 \citeauthor{smartt2017kilonova} *\\ 57986.980 4.451 DECam Blanco/CTIO i 19.22 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57986.988 4.459 E2V4kx4kccd Swope i 19.39 0.04 0 \citeauthor{SwopeDiscovery} *\\ 57987.979 5.450 DECam Blanco/CTIO i 19.55 0.18 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57988.002 5.473 E2V4kx4kccd Swope i 20.27 0.12 0 \citeauthor{SwopeDiscovery} o\\ 57988.970 6.441 OmegaCam VST i 20.33 0.09 0 \citeauthor{pian2017spectroscopic} *\\ 57989.982 7.453 DECam Blanco/CTIO i 20.54 0.05 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57989.990 7.461 E2V4kx4kccd Swope i 21.42 0.18 0 \citeauthor{SwopeDiscovery} o\\ 57990.039 7.510 GMOS Gemini-S i 20.91 0.03 0 \citeauthor{troja2017x} *\\ 57990.988 8.459 DECam Blanco/CTIO i 20.72 0.06 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57992.000 9.471 DECam Blanco/CTIO i 21.37 0.06 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57993.000 10.471 DECam Blanco/CTIO i 22.38 0.10 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ #57997.009 14.480 GMOS Gemini-S i $>$23.20 - 0 \citeauthor{kasliwal2017illuminating} *\\ # z # MJD t (day) Telescope info filter mag magerr 57983.000 0.471 LDSS Magellan z 17.67 0.03 0 \citeauthor{drout2017light} *\\ 57983.004 0.475 DECam Blanco/CTIO z 17.59 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57983.050 0.521 ROS2 REM z 16.85 0.10 0 \citeauthor{pian2017spectroscopic} o\\ 57983.229 0.700 HSC Subaru z 17.40 0.01 0 \citeauthor{utsumi2017j} *\\ 57983.231 0.702 GFC Pan-STARRS z 17.26 0.06 0 \citeauthor{smartt2017kilonova} *\\ 57983.969 1.440 GROND LaSilla z 17.72 0.03 0 \citeauthor{smartt2017kilonova} *\\ 57983.977 1.448 LDSS Magellan z 17.62 0.06 0 \citeauthor{drout2017light} *\\ 57983.977 1.448 DECam Blanco/CTIO z 17.59 0.02 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57983.978 1.449 LDSS Magellan z 17.61 0.06 0 \citeauthor{drout2017light} *\\ 57983.979 1.450 LDSS Magellan z 17.61 0.06 0 \citeauthor{drout2017light} *\\ 57983.980 1.451 ROS2 REM z 17.61 0.10 0 \citeauthor{pian2017spectroscopic} *\\ 57984.000 1.471 XS VLT z 17.65 0.07 0 \citeauthor{pian2017spectroscopic} *\\ 57984.229 1.700 HSC Subaru z 17.74 0.01 0 \citeauthor{utsumi2017j} *\\ 57984.231 1.702 GFC Pan-STARRS z 17.78 0.07 0 \citeauthor{smartt2017kilonova} *\\ 57984.751 2.222 Sinistro LCO1m z 18.25 0.30 -0.58 \citeauthor{arcavi2017optical} *\\ 57984.969 2.440 GROND LaSilla z 18.33 0.06 0 \citeauthor{smartt2017kilonova} *\\ 57984.976 2.447 DECam Blanco/CTIO z 18.18 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57984.982 2.453 Sinistro LCO1m z 18.19 0.20 -0.54 \citeauthor{arcavi2017optical} *\\ 57984.990 2.461 DK1.5 DK1.5 z 18.01 0.13 0 \citeauthor{tanvir2017emergence} *\\ 57985.231 2.702 GFC Pan-STARRS z 18.31 0.07 0 \citeauthor{smartt2017kilonova} *\\ 57985.740 3.211 Sinistro LCO1m z 18.42 0.34 -0.72 \citeauthor{arcavi2017optical} *\\ 57985.974 3.445 GROND LaSilla z 18.74 0.02 0 \citeauthor{smartt2017kilonova} *\\ 57985.984 3.455 DECam Blanco/CTIO z 18.56 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57986.000 3.471 LDSS Magellan z 18.38 0.05 0 \citeauthor{drout2017light} *\\ 57986.020 3.491 XS VLT z 18.30 0.02 0 \citeauthor{pian2017spectroscopic} *\\ 57986.049 3.520 GMOS Gemini-S z 18.46 0.01 0 \citeauthor{troja2017x} *\\ 57986.236 3.707 GFC Pan-STARRS z 18.10 0.30 0 \citeauthor{smartt2017kilonova} o\\ 57986.974 4.445 GROND LaSilla z 19.07 0.06 0 \citeauthor{smartt2017kilonova} *\\ 57986.978 4.449 DECam Blanco/CTIO z 18.81 0.03 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57986.980 4.451 VIMOS VLT z 18.73 0.01 0 \citeauthor{tanvir2017emergence} *\\ 57987.000 4.471 FORS2 VLT z 18.93 0.03 0 \citeauthor{pian2017spectroscopic} *\\ #57987.236 4.707 GFC Pan-STARRS z $>$18.80 - 0 \citeauthor{smartt2017kilonova} *\\ 57987.971 5.442 LDSS Magellan z 19.08 0.12 0 \citeauthor{drout2017light} *\\ 57987.977 5.448 DECam Blanco/CTIO z 19.17 0.11 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57988.020 5.491 XS VLT z 19.16 0.03 0 \citeauthor{pian2017spectroscopic} *\\ 57988.980 6.451 FORS2 VLT z 19.63 0.04 0 \citeauthor{pian2017spectroscopic} *\\ 57989.970 7.441 LDSS Magellan z 19.87 0.07 0 \citeauthor{drout2017light} *\\ 57989.979 7.450 DECam Blanco/CTIO z 19.89 0.05 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ #57989.983 7.454 GROND LaSilla z $>$19.70 - 0 \citeauthor{smartt2017kilonova} *\\ 57990.229 7.700 HSC Subaru z 20.21 0.04 0 \citeauthor{utsumi2017j} *\\ 57990.972 8.443 VIMOS VLT z 20.28 0.03 0 \citeauthor{tanvir2017emergence} *\\ 57990.972 8.443 LDSS Magellan z 20.40 0.07 0 \citeauthor{drout2017light} *\\ 57990.983 8.454 DECam Blanco/CTIO z 20.40 0.06 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57990.990 8.461 FORS2 VLT z 20.61 0.09 0 \citeauthor{pian2017spectroscopic} *\\ 57991.974 9.445 VIMOS VLT z 20.85 0.04 0 \citeauthor{tanvir2017emergence} *\\ 57991.991 9.462 FORS VLT z 20.69 0.11 0 \citeauthor{tanvir2017emergence} *\\ 57991.994 9.465 DECam Blanco/CTIO z 21.19 0.07 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57992.980 10.451 FORS2 VLT z 22.01 0.21 0 \citeauthor{pian2017spectroscopic} *\\ 57992.987 10.458 DECam Blanco/CTIO z 22.06 0.13 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57993.980 11.451 FORS2 VLT z 22.82 0.47 0 \citeauthor{pian2017spectroscopic} *\\ 57995.969 13.440 VIMOS VLT z 22.30 0.28 0 \citeauthor{tanvir2017emergence} *\\ 57996.980 14.451 FORS2 VLT z 23.34 0.37 0 \citeauthor{pian2017spectroscopic} *\\ 58001.992 19.463 VIMOS VLT z 23.37 0.48 0 \citeauthor{tanvir2017emergence} *\\ # J # MJD t (day) Telescope info filter mag magerr 57983.000 0.471 FourStar Magellan J 17.83 0.15 0 \citeauthor{drout2017light} *\\ 57983.699 1.170 SIRIUS IRSF J 17.51 0.03 0 \citeauthor{utsumi2017j} *\\ 57983.969 1.440 GROND LaSilla J 17.58 0.07 0 \citeauthor{smartt2017kilonova} *\\ 57983.981 1.452 FourStar Magellan J 17.47 0.01 0 \citeauthor{drout2017light} *\\ 57984.699 2.170 SIRIUS IRSF J 17.69 0.04 0 \citeauthor{utsumi2017j} *\\ 57984.963 2.433 FourStar Magellan J 17.55 0.01 0 \citeauthor{drout2017light} *\\ 57984.969 2.440 GROND LaSilla J 17.73 0.09 0 \citeauthor{smartt2017kilonova} *\\ 57985.019 2.490 FLAMINGOS-2 Gemini-S J 17.76 0.02 0 \citeauthor{kasliwal2017illuminating} *\\ 57985.699 3.170 SIRIUS IRSF J 17.78 0.05 0 \citeauthor{utsumi2017j} *\\ 57985.973 3.444 FourStar Magellan J 17.85 0.01 0 \citeauthor{drout2017light} *\\ 57985.974 3.445 GROND LaSilla J 17.95 0.07 0 \citeauthor{smartt2017kilonova} *\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S J 17.93 0.06 0 \citeauthor{kasliwal2017illuminating} r\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S J 17.94 0.02 0 \citeauthor{troja2017x} r\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S J 17.94 0.02 0 this paper a\\ 57986.709 4.180 SIRIUS IRSF J 18.13 0.12 0 \citeauthor{utsumi2017j} *\\ 57986.974 4.445 GROND LaSilla J 18.17 0.07 0 \citeauthor{smartt2017kilonova} *\\ 57987.049 4.520 FLAMINGOS-2 Gemini-S J 18.15 0.06 0 \citeauthor{kasliwal2017illuminating} *\\ 57987.709 5.180 SIRIUS IRSF J 18.31 0.06 0 \citeauthor{utsumi2017j} *\\ 57988.729 6.200 SIRIUS IRSF J 18.36 0.05 0 \citeauthor{utsumi2017j} *\\ 57988.729 6.200 SIRIUS IRSF J 18.65 0.19 0 \citeauthor{kasliwal2017illuminating} *\\ 57989.699 7.170 SIRIUS IRSF J 18.95 0.32 0 \citeauthor{kasliwal2017illuminating} *\\ 57989.699 7.170 SIRIUS IRSF J 18.98 0.08 0 \citeauthor{utsumi2017j} *\\ 57989.983 7.454 GROND LaSilla J 19.26 0.28 0 \citeauthor{smartt2017kilonova} *\\ 57990.968 8.439 GROND LaSilla J 19.64 0.11 0 \citeauthor{smartt2017kilonova} *\\ #57991.709 9.180 SIRIUS IRSF J $>$18.87 - 0 \citeauthor{kasliwal2017illuminating} *\\ 57991.709 9.180 SIRIUS IRSF J 19.32 0.08 0 \citeauthor{utsumi2017j} o\\ 57991.959 9.430 FLAMINGOS-2 Gemini-S J 20.57 0.20 0 \citeauthor{kasliwal2017illuminating} *\\ 57991.969 9.440 GROND LaSilla J 20.23 0.10 0 \citeauthor{smartt2017kilonova} *\\ 57992.969 10.440 FLAMINGOS-2 Gemini-S J 21.33 0.30 0 \citeauthor{kasliwal2017illuminating} *\\ 57992.975 10.446 EFOSC2 NTT J 21.02 0.22 0 \citeauthor{smartt2017kilonova} *\\ #57993.699 11.170 SIRIUS IRSF J $>$18.37 - 0 \citeauthor{kasliwal2017illuminating} *\\ #57993.989 11.460 FLAMINGOS-2 Gemini-S J $>$21.07 - 0 \citeauthor{kasliwal2017illuminating} r, o\\ 57993.989 11.460 FLAMINGOS-2 Gemini-S J 20.35 0.12 0 \citeauthor{troja2017x} r,*\\ #57994.989 12.460 FLAMINGOS-2 Gemini-S J $>$21.55 - 0 \citeauthor{kasliwal2017illuminating} *\\ #57995.989 13.460 FLAMINGOS-2 Gemini-S J $>$21.94 - 0 \citeauthor{kasliwal2017illuminating} *\\ #58007.989 25.460 FLAMINGOS-2 Gemini-S J $>$20.21 - 0 \citeauthor{kasliwal2017illuminating} *\\ # H # MJD t (day) Telescope info filter mag magerr 57982.990 0.461 FourStar Magellan H 18.26 0.15 0 \citeauthor{drout2017light} *\\ 57983.699 1.170 SIRIUS IRSF H 17.64 0.04 0 \citeauthor{utsumi2017j} *\\ 57983.969 1.440 GROND LaSilla H 17.64 0.08 0 \citeauthor{smartt2017kilonova} *\\ 57983.990 1.461 FourStar Magellan H 17.52 0.01 0 \citeauthor{drout2017light} *\\ 57984.000 1.471 FLAMINGOS-2 Gemini-S H 17.63 0.10 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57984.699 2.170 SIRIUS IRSF H 17.52 0.04 0 \citeauthor{utsumi2017j} *\\ 57984.968 2.439 FLAMINGOS-2 Gemini-S H 17.71 0.09 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57984.969 2.440 GROND LaSilla H 17.64 0.08 0 \citeauthor{smartt2017kilonova} *\\ 57984.971 2.442 FourStar Magellan H 17.57 0.01 0 \citeauthor{drout2017light} *\\ 57985.699 3.170 SIRIUS IRSF H 17.57 0.04 0 \citeauthor{utsumi2017j} *\\ 57985.974 3.445 GROND LaSilla H 17.72 0.07 0 \citeauthor{smartt2017kilonova} *\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S H 17.72 0.04 0 \citeauthor{kasliwal2017illuminating} r\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S H 17.69 0.02 0 \citeauthor{troja2017x} r\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S H 17.70 0.02 0 this paper a\\ 57986.709 4.180 SIRIUS IRSF H 17.77 0.04 0 \citeauthor{utsumi2017j} *\\ 57986.973 4.444 FLAMINGOS-2 Gemini-S H 17.92 0.10 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57987.049 4.520 FLAMINGOS-2 Gemini-S H 18.02 0.07 0 \citeauthor{kasliwal2017illuminating} *\\ 57987.709 5.180 SIRIUS IRSF H 17.94 0.05 0 \citeauthor{utsumi2017j} *\\ 57988.729 6.200 SIRIUS IRSF H 18.12 0.04 0 \citeauthor{utsumi2017j} *\\ 57988.729 6.200 SIRIUS IRSF H 18.60 0.18 0 \citeauthor{kasliwal2017illuminating} *\\ 57989.699 7.170 SIRIUS IRSF H 18.51 0.05 0 \citeauthor{utsumi2017j} *\\ 57989.699 7.170 SIRIUS IRSF H 18.53 0.17 0 \citeauthor{kasliwal2017illuminating} *\\ 57989.966 7.437 FLAMINGOS-2 Gemini-S H 18.79 0.14 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57989.983 7.454 GROND LaSilla H 18.74 0.06 0 \citeauthor{smartt2017kilonova} *\\ 57990.968 8.439 GROND LaSilla H 19.26 0.26 0 \citeauthor{smartt2017kilonova} *\\ 57990.980 8.451 FLAMINGOS-2 Gemini-S H 19.22 0.18 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57991.709 9.180 SIRIUS IRSF H 18.83 0.23 0 \citeauthor{kasliwal2017illuminating} *\\ 57991.709 9.180 SIRIUS IRSF H 18.90 0.09 0 \citeauthor{utsumi2017j} *\\ 57991.959 9.430 FLAMINGOS-2 Gemini-S H 19.62 0.15 0 \citeauthor{cowperthwaite2017electromagnetic} r\\ 57991.959 9.430 FLAMINGOS-2 Gemini-S H 19.68 0.08 0 \citeauthor{kasliwal2017illuminating} r\\ 57991.959 9.430 FLAMINGOS-2 Gemini-S H 19.67 0.08 0 this paper a\\ 57991.969 9.440 GROND LaSilla H 19.66 0.14 0 \citeauthor{smartt2017kilonova} *\\ 57992.969 10.440 FLAMINGOS-2 Gemini-S H 19.63 0.08 0 \citeauthor{kasliwal2017illuminating} *\\ 57992.981 10.452 FLAMINGOS-2 Gemini-S H 20.04 0.15 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57993.016 10.487 GROND LaSilla H 20.17 0.34 0 \citeauthor{smartt2017kilonova} *\\ #57993.699 11.170 SIRIUS IRSF H $>$18.43 - 0 \citeauthor{kasliwal2017illuminating} *\\ 57993.699 11.170 SIRIUS IRSF H 19.53 0.21 0 \citeauthor{utsumi2017j} *\\ 57993.960 11.431 EFOSC2 NTT H 20.05 0.20 0 \citeauthor{smartt2017kilonova} *\\ #57993.989 11.460 FLAMINGOS-2 Gemini-S H $>$20.63 - 0 \citeauthor{kasliwal2017illuminating} r\\ 57993.989 11.460 FLAMINGOS-2 Gemini-S H 20.24 0.18 0 \citeauthor{troja2017x} r,*\\ 57993.997 11.468 SOFI NTT H 19.64 0.14 0 \citeauthor{drout2017light} *\\ 57994.979 12.450 FLAMINGOS-2 Gemini-S H 20.99 0.21 0 \citeauthor{troja2017x} r\\ 57994.979 12.450 FLAMINGOS-2 Gemini-S H 20.57 0.19 0 \citeauthor{kasliwal2017illuminating} r\\ 57994.979 12.450 FLAMINGOS-2 Gemini-S H 20.76 0.19 0 this paper a,*\\ #57995.962 13.433 FourStar Magellan H $>$20.50 - 0 \citeauthor{drout2017light} *\\ 57995.979 13.450 FLAMINGOS-2 Gemini-S H 21.48 0.30 0 \citeauthor{kasliwal2017illuminating} r\\ 57995.979 13.450 FLAMINGOS-2 Gemini-S H 21.01 0.14 0 \citeauthor{troja2017x} r\\ 57995.979 13.450 FLAMINGOS-2 Gemini-S H 21.09 0.14 0 this paper a,*\\ 57996.999 14.470 FLAMINGOS-2 Gemini-S H 21.63 0.36 0 \citeauthor{kasliwal2017illuminating} *\\ #58002.979 20.450 FLAMINGOS-2 Gemini-S H $>$21.22 - 0 \citeauthor{kasliwal2017illuminating} *\\ # K # MJD t (day) Telescope info filter mag magerr 57982.999 0.470 VIRCAM VISTA Ks 18.62 0.05 0 \citeauthor{tanvir2017emergence} *\\ 57983.029 0.500 VIRCAM VISTA Ks 18.64 0.06 0 \citeauthor{tanvir2017emergence} *\\ 57983.030 0.501 FourStar Magellan Ks 18.41 0.15 0 \citeauthor{drout2017light} *\\ 57983.059 0.530 FLAMINGOS-2 Gemini-S Ks 18.42 0.04 0 \citeauthor{kasliwal2017illuminating} *\\ 57983.699 1.170 SIRIUS IRSF Ks 17.91 0.05 0 \citeauthor{utsumi2017j} *\\ 57983.969 1.440 GROND LaSilla K 17.85 0.15 -0.29 \citeauthor{smartt2017kilonova} *\\ 57983.981 1.452 FourStar Magellan Ks 17.61 0.04 0 \citeauthor{drout2017light} *\\ 57983.989 1.460 VIRCAM VISTA Ks 17.77 0.02 0 \citeauthor{tanvir2017emergence} *\\ 57984.699 2.170 SIRIUS IRSF Ks 17.61 0.04 0 \citeauthor{utsumi2017j} *\\ 57984.962 2.433 FourStar Magellan Ks 17.55 0.06 0 \citeauthor{drout2017light} *\\ 57984.969 2.440 GROND LaSilla K 17.66 0.10 -0.24 \citeauthor{smartt2017kilonova} *\\ 57984.979 2.450 VIRCAM VISTA Ks 17.67 0.03 0 \citeauthor{tanvir2017emergence} *\\ 57985.019 2.490 FLAMINGOS-2 Gemini-S Ks 17.60 0.04 0 \citeauthor{kasliwal2017illuminating} *\\ 57985.699 3.170 SIRIUS IRSF Ks 17.55 0.05 0 \citeauthor{utsumi2017j} *\\ 57985.974 3.445 GROND LaSilla K 17.63 0.10 0 \citeauthor{smartt2017kilonova} *\\ 57985.979 3.450 VIRCAM VISTA Ks 17.54 0.02 -0.23 \citeauthor{tanvir2017emergence} *\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S Ks 17.61 0.06 0 \citeauthor{kasliwal2017illuminating} r\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S Ks 17.62 0.02 0 \citeauthor{troja2017x} r\\ 57986.029 3.500 FLAMINGOS-2 Gemini-S Ks 17.61 0.02 0 this paper a\\ 57986.709 4.180 SIRIUS IRSF Ks 17.57 0.07 0 \citeauthor{utsumi2017j} *\\ 57986.974 4.445 GROND LaSilla K 17.53 0.11 -0.21 \citeauthor{smartt2017kilonova} *\\ 57986.979 4.450 VIRCAM VISTA Ks 17.60 0.02 0 \citeauthor{tanvir2017emergence} *\\ 57987.039 4.510 FLAMINGOS-2 Gemini-S Ks 17.72 0.09 0 \citeauthor{kasliwal2017illuminating} *\\ 57987.709 5.180 SIRIUS IRSF Ks 17.68 0.04 0 \citeauthor{utsumi2017j} *\\ 57988.729 6.200 SIRIUS IRSF Ks 17.69 0.03 0 \citeauthor{utsumi2017j} *\\ 57988.729 6.200 SIRIUS IRSF Ks 18.01 0.10 0 \citeauthor{kasliwal2017illuminating} *\\ 57988.989 6.460 VIRCAM VISTA Ks 17.84 0.03 0 \citeauthor{tanvir2017emergence} *\\ 57989.699 7.170 SIRIUS IRSF Ks 17.95 0.04 0 \citeauthor{utsumi2017j} *\\ 57989.699 7.170 SIRIUS IRSF Ks 18.02 0.12 0 \citeauthor{kasliwal2017illuminating} *\\ 57989.969 7.440 ANDICAM 1.3m/CTIO K 18.06 0.17 0 \citeauthor{kasliwal2017illuminating} *\\ 57989.979 7.450 VIRCAM VISTA Ks 17.95 0.04 0 \citeauthor{tanvir2017emergence} *\\ 57989.983 7.454 GROND LaSilla K 18.04 0.12 -0.36 \citeauthor{smartt2017kilonova} *\\ 57990.968 8.439 GROND LaSilla K 18.35 0.16 -0.51 \citeauthor{smartt2017kilonova} *\\ 57990.979 8.450 ANDICAM 1.3m/CTIO K 18.44 0.18 0 \citeauthor{kasliwal2017illuminating} *\\ 57990.979 8.450 VIRCAM VISTA Ks 18.25 0.03 0 \citeauthor{tanvir2017emergence} *\\ 57991.709 9.180 SIRIUS IRSF Ks 18.25 0.21 0 \citeauthor{kasliwal2017illuminating} *\\ 57991.709 9.180 SIRIUS IRSF Ks 18.34 0.06 0 \citeauthor{utsumi2017j} *\\ 57991.959 9.430 FLAMINGOS-2 Gemini-S Ks 18.50 0.08 0 \citeauthor{kasliwal2017illuminating} *\\ 57991.969 9.440 ANDICAM 1.3m/CTIO K 18.43 0.17 0 \citeauthor{kasliwal2017illuminating} *\\ 57991.969 9.440 GROND LaSilla K 18.46 0.20 -0.57 \citeauthor{smartt2017kilonova} *\\ 57991.979 9.450 VIRCAM VISTA Ks 18.49 0.05 0 \citeauthor{tanvir2017emergence} *\\ #57992.099 9.570 NICFPS APO Ks $>$17.99 - 0 \citeauthor{kasliwal2017illuminating} *\\ #57992.119 9.590 WHIRC Palomar5m Ks $>$17.64 - 0 \citeauthor{kasliwal2017illuminating} *\\ 57992.959 10.430 FLAMINGOS-2 Gemini-S Ks 18.77 0.07 0 \citeauthor{kasliwal2017illuminating} *\\ 57992.969 10.440 ANDICAM 1.3m/CTIO K 18.91 0.19 0 \citeauthor{kasliwal2017illuminating} *\\ 57992.978 10.449 FLAMINGOS-2 Gemini-S Ks 18.43 0.25 0 \citeauthor{cowperthwaite2017electromagnetic} *\\ 57992.979 10.450 VIRCAM VISTA Ks 18.74 0.06 0 \citeauthor{tanvir2017emergence} *\\ 57993.016 10.487 GROND LaSilla K 18.71 0.22 -0.79 \citeauthor{smartt2017kilonova} *\\ #57993.699 11.170 SIRIUS IRSF Ks $>$18.48 - 0 \citeauthor{kasliwal2017illuminating} *\\ 57993.699 11.170 SIRIUS IRSF Ks 18.64 0.12 0 \citeauthor{utsumi2017j} *\\ #57993.969 11.440 ANDICAM 1.3m/CTIO K $>$19.11 - 0 \citeauthor{kasliwal2017illuminating} *\\ 57993.979 11.450 FLAMINGOS-2 Gemini-S Ks 19.03 0.17 0 \citeauthor{cowperthwaite2017electromagnetic} r\\ 57993.979 11.450 FLAMINGOS-2 Gemini-S Ks 19.41 0.09 0 \citeauthor{kasliwal2017illuminating} r,o\\ 57993.979 11.450 FLAMINGOS-2 Gemini-S Ks 18.99 0.05 0 \citeauthor{troja2017x} r\\ 57993.979 11.450 FLAMINGOS-2 Gemini-S Ks 18.99 0.05 0 this paper a,*\\ 57994.962 12.433 FourStar Magellan Ks 19.36 0.09 0 \citeauthor{drout2017light} *\\ 57994.969 12.440 FLAMINGOS-2 Gemini-S Ks 19.42 0.16 0 \citeauthor{cowperthwaite2017electromagnetic} r\\ 57994.969 12.440 FLAMINGOS-2 Gemini-S Ks 19.44 0.08 0 \citeauthor{kasliwal2017illuminating} r\\ 57994.969 12.440 FLAMINGOS-2 Gemini-S Ks 19.46 0.04 0 \citeauthor{troja2017x} r\\ 57994.969 12.440 FLAMINGOS-2 Gemini-S Ks 19.45 0.04 0 this paper a,*\\ 57994.985 12.456 SOFI NTT Ks 19.32 0.09 0 \citeauthor{drout2017light} *\\ 57994.989 12.460 VIRCAM VISTA Ks 19.34 0.08 0 \citeauthor{tanvir2017emergence} *\\ 57995.959 13.430 FLAMINGOS-2 Gemini-S Ks 19.63 0.23 0 \citeauthor{cowperthwaite2017electromagnetic} r\\ 57995.959 13.430 FLAMINGOS-2 Gemini-S Ks 19.84 0.09 0 \citeauthor{kasliwal2017illuminating} r\\ 57995.959 13.430 FLAMINGOS-2 Gemini-S Ks 19.81 0.09 0 this paper a,*\\ 57995.978 13.449 FourStar Magellan Ks 19.52 0.09 0 \citeauthor{drout2017light} *\\ 57995.990 13.461 SOFI NTT Ks 19.43 0.09 0 \citeauthor{drout2017light} *\\ 57996.799 14.270 MOIRCS Subaru Ks 19.35 0.04 0 \citeauthor{utsumi2017j} o\\ 57996.974 14.445 FLAMINGOS-2 Gemini-S Ks 19.90 0.21 0 \citeauthor{cowperthwaite2017electromagnetic} r\\ 57996.974 14.445 FLAMINGOS-2 Gemini-S Ks 20.06 0.10 0 \citeauthor{kasliwal2017illuminating} r\\ 57996.974 14.445 FLAMINGOS-2 Gemini-S Ks 19.93 0.03 0 \citeauthor{troja2017x} r\\ 57996.974 14.445 FLAMINGOS-2 Gemini-S Ks 19.94 0.03 0 this paper a,*\\ 57996.989 14.460 VIRCAM VISTA Ks 20.02 0.13 0 \citeauthor{tanvir2017emergence} *\\ 57997.799 15.270 MOIRCS Subaru Ks 19.97 0.05 0 \citeauthor{utsumi2017j} *\\ 57997.970 15.441 FourStar Magellan Ks 20.23 0.10 0 \citeauthor{drout2017light} *\\ 57997.976 15.447 FLAMINGOS-2 Gemini-S Ks 20.13 0.25 0 \citeauthor{cowperthwaite2017electromagnetic} r\\ 57997.976 15.447 FLAMINGOS-2 Gemini-S Ks 20.43 0.13 0 \citeauthor{kasliwal2017illuminating} r,o\\ 57997.976 15.447 FLAMINGOS-2 Gemini-S Ks 20.06 0.05 0 \citeauthor{troja2017x} r\\ 57997.976 15.447 FLAMINGOS-2 Gemini-S Ks 20.06 0.05 0 this paper a,*\\ 57998.979 16.450 FLAMINGOS-2 Gemini-S Ks 20.43 0.30 0 \citeauthor{cowperthwaite2017electromagnetic} r\\ 57998.979 16.450 FLAMINGOS-2 Gemini-S Ks 20.31 0.08 0 \citeauthor{troja2017x} r\\ 57998.979 16.450 FLAMINGOS-2 Gemini-S Ks 20.95 0.18 0 \citeauthor{kasliwal2017illuminating} r,o\\ 57998.979 16.450 FLAMINGOS-2 Gemini-S Ks 20.32 0.08 0 this paper a,*\\ 57999.979 17.450 HAWKI VLT Ks 20.77 0.13 0 \citeauthor{tanvir2017emergence} *\\ #57999.989 17.460 FLAMINGOS-2 Gemini-S Ks $>$19.92 - 0 \citeauthor{kasliwal2017illuminating} r\\ 57999.989 17.460 FLAMINGOS-2 Gemini-S Ks 20.61 0.09 0 \citeauthor{troja2017x} r,*\\ 58000.960 18.431 FourStar Magellan Ks 20.81 0.13 0 \citeauthor{drout2017light} *\\ 58000.966 18.437 EFOSC2 NTT K 20.76 0.35 0 \citeauthor{smartt2017kilonova} *\\ 58000.978 18.449 FLAMINGOS-2 Gemini-S Ks 20.84 0.26 0 \citeauthor{cowperthwaite2017electromagnetic} r\\ 58000.978 18.449 FLAMINGOS-2 Gemini-S Ks 21.04 0.09 0 \citeauthor{kasliwal2017illuminating} r\\ 58000.978 18.449 FLAMINGOS-2 Gemini-S Ks 21.02 0.09 0 this paper a,*\\ 58000.990 18.461 FourStar Magellan Ks 20.93 0.17 0 \citeauthor{drout2017light} *\\ 58001.989 19.460 FLAMINGOS-2 Gemini-S Ks 21.23 0.37 0 \citeauthor{kasliwal2017illuminating} r\\ 58001.989 19.460 FLAMINGOS-2 Gemini-S Ks 20.85 0.13 0 \citeauthor{troja2017x} r\\ 58001.989 19.460 FLAMINGOS-2 Gemini-S Ks 20.89 0.13 0 this paper a,*\\ 58003.969 21.440 HAWKI VLT Ks 21.46 0.08 0 \citeauthor{tanvir2017emergence} *\\ #58003.989 21.460 FLAMINGOS-2 Gemini-S Ks $>$21.48 - 0 \citeauthor{kasliwal2017illuminating} *\\ 58007.969 25.440 HAWKI VLT Ks 22.06 0.22 0 \citeauthor{tanvir2017emergence} *\\ #58010.969 28.440 FLAMINGOS-2 Gemini-S Ks $>$19.96 - 0 \citeauthor{kasliwal2017illuminating} *\\ #58011.969 29.440 FLAMINGOS-2 Gemini-S Ks $>$20.60 - 0 \citeauthor{kasliwal2017illuminating} *\\