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Table 4

Calculated magnitudes for M31N 2015-01a in Johnson-Cousins BVRI filters.

JD-2 457 000   Filter   mag   err   Telescope   Airmass

36.264   B 19.641   0.161   RSCH   1.17
38.248   B 17.046   0.017   BTA   1.30
38.345   B 16.992   0.029   RSCH   1.69
39.261   B 16.549   0.017   RSCH   1.19
39.413   B 16.498   0.029   UL50   1.53
40.295   B 16.215   0.017   RSCH   1.35
44.196   B 15.934   0.017   BTA   1.16
46.612   B 16.109   0.026   LCOGT   1.32
48.658   B 16.679   0.242   LCOGT   1.71
51.611   B 17.261   0.026   LCOGT   1.38
60.323   B 17.865   0.096   KSCH   1.79
61.252   B 17.974   0.026   KSCH   1.32
67.257   B 18.294   0.066   KSCH   1.42
68.246   B 18.383   0.022   RSCH   1.53
72.249   B 18.719   0.103   KSCH   1.46
75.224   B 18.791   0.018   BTA   1.92
93.340   B 20.076   0.051   NOT   2.53
96.346   B 20.385   0.041   NOT   2.99

38.246   V 16.416   0.008   BTA   1.29
44.187   V 15.436   0.011   BTA   1.14
66.319   V 16.626   0.012   KSCH   1.93
67.243   V 16.621   0.026   KSCH   1.35
72.241   V 16.832   0.065   KSCH   1.41
75.225   V 16.873   0.013   BTA   1.93
89.323   V 17.869   0.059   UL50   1.92
92.246   V 18.098   0.108   KSCH   1.91

36.243   R 18.087   0.026   RSCH   1.11
37.210   R 17.213   0.011   R2M   1.05
38.246   R 16.051   0.011   BTA   1.29
38.330   R 16.047   0.009   RSCH   1.55
39.242   R 15.679   0.009   RSCH   1.13
40.283   R 15.407   0.009   RSCH   1.29
40.390   R 15.364   0.012   R2M   2.38
44.189   R 15.133   0.011   BTA   1.14
46.617   R 15.165   0.013   LCOGT   1.34
48.661   R 15.347   0.032   LCOGT   1.75
51.615   R 15.609   0.011   LCOGT   1.41
57.285   R 15.678   0.011   ONDR   1.36
59.238   R 15.692   0.011   ONDR   1.20
60.317   R 15.675   0.012   KSCH   1.73
61.234   R 15.683   0.011   KSCH   1.24
62.596   R 15.681   0.009   LCOGT   1.50
64.608   R 15.689   0.009   LCOGT   1.66
66.310   R 15.725   0.011   KSCH   1.82
67.239   R 15.741   0.009   KSCH   1.33
68.230   R 15.804   0.013   RSCH   1.42
72.244   R 15.839   0.027   KSCH   1.42
73.250   R 15.858   0.009   ONDR   1.40
75.223   R 15.894   0.024   BTA   1.90
80.270   R 16.111   0.011   ONDR   1.68
86.329   R 16.417   0.021   ONDR   2.72
87.302   R 16.437   0.016   ONDR   2.28
89.266   R 16.642   0.012   ONDR   1.88
89.337   R 16.617   0.061   UL50   2.08
92.245   R 16.987   0.104   KSCH   1.90
93.345   R 17.011   0.011   NOT   2.68
96.351   R 17.315   0.013   NOT   3.19
99.283   R 17.617   0.035   ONDR   2.54
105.279   R 18.499   0.084   ONDR   2.79
60.320   I 15.028   0.021   KSCH   1.76
61.245   I 15.017   0.018   KSCH   1.28
67.241   I 15.019   0.018   KSCH   1.34
68.272   I 15.085   0.016   RSCH   1.78
72.246   I 15.048   0.028   KSCH   1.44
89.357   I 15.344   0.111   UL50   2.34
92.248   I 15.377   0.065   KSCH   1.92
93.350   I 15.557   0.021   NOT   2.84
96.356   I 15.735   0.021   NOT   3.42

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