# Measurements of MAXIJ1820+070 made at RIT Obs, UT 2018 Sep 24, # in good conditions, # by Michael Richmond, # using Meade 12-inch LX200 and ATIK 11000. # Exposures 120 seconds long, V filter. # Tabulated times are midexposure (FITS header time - half exposure length) # and accurate only to +/- 1 second (??). # 'mag' is a differential magnitude based on ensemble photometry # using a circular aperture of radius 5 pix = 6.6 arcseconds. # which has been shifted so UCAC4 486-079513 has mag=12.454 # which is its V-band magnitude according to UCAC4. # # UT_day JD HJD mag uncert Sep24.01354 2458385.51354 2458385.51399 14.020 0.017 Sep24.01657 2458385.51657 2458385.51702 14.031 0.019 Sep24.01806 2458385.51806 2458385.51851 13.996 0.019 Sep24.01955 2458385.51955 2458385.52000 14.042 0.020 Sep24.02699 2458385.52699 2458385.52744 14.058 0.021 Sep24.02848 2458385.52848 2458385.52893 14.041 0.020 Sep24.03146 2458385.53146 2458385.53191 14.043 0.020 Sep24.03295 2458385.53295 2458385.53340 14.061 0.021 Sep24.03443 2458385.53443 2458385.53488 14.081 0.021 Sep24.03890 2458385.53890 2458385.53935 14.080 0.021 Sep24.04039 2458385.54039 2458385.54084 14.091 0.021 Sep24.04337 2458385.54337 2458385.54382 14.107 0.022 Sep24.04485 2458385.54485 2458385.54530 14.100 0.022 Sep24.04784 2458385.54784 2458385.54829 14.105 0.022 Sep24.04932 2458385.54932 2458385.54977 14.096 0.022 Sep24.05081 2458385.55081 2458385.55126 14.059 0.021 Sep24.05528 2458385.55528 2458385.55573 14.080 0.021 Sep24.05973 2458385.55973 2458385.56018 14.099 0.022 Sep24.06123 2458385.56123 2458385.56168 14.069 0.021 Sep24.06569 2458385.56569 2458385.56614 14.095 0.021 Sep24.06867 2458385.56867 2458385.56912 14.060 0.021 Sep24.07611 2458385.57611 2458385.57656 14.076 0.021 Sep24.07760 2458385.57760 2458385.57805 14.138 0.021 Sep24.08058 2458385.58058 2458385.58103 14.133 0.022 Sep24.08207 2458385.58207 2458385.58252 14.140 0.021 Sep24.08355 2458385.58355 2458385.58400 14.098 0.022 Sep24.08505 2458385.58505 2458385.58550 14.120 0.022 Sep24.09546 2458385.59546 2458385.59591 14.166 0.021 Sep24.09696 2458385.59696 2458385.59741 14.131 0.022 Sep24.09993 2458385.59993 2458385.60038 14.142 0.021 Sep24.10142 2458385.60142 2458385.60187 14.153 0.020 Sep24.10588 2458385.60588 2458385.60632 14.194 0.022 Sep24.11184 2458385.61184 2458385.61228 14.159 0.019 Sep24.11332 2458385.61332 2458385.61376 14.183 0.020 Sep24.12226 2458385.62226 2458385.62270 14.141 0.021 Sep24.12374 2458385.62374 2458385.62418 14.164 0.020 Sep24.12821 2458385.62821 2458385.62865 14.189 0.021 Sep24.12970 2458385.62970 2458385.63014 14.168 0.021 Sep24.13416 2458385.63416 2458385.63460 14.168 0.021 Sep24.14309 2458385.64309 2458385.64353 14.214 0.023 Sep24.14457 2458385.64457 2458385.64501 14.199 0.022