Table 3.
Amplitude variability and photometric error analysis of 2M J0746+20A and 2M J0746+20B.
| Date of Obs. | Band | Amplitude Variability2M J0746 + 20A | Amplitude Variability2M J0746 + 20B | Photometric Error |
|---|---|---|---|---|
| (UT) | (mag) | (mag) | (mag) | |
| (1) | (2) | (3) | (4) | (5) |
| 2017 March 05 | I | 0.0040 ± 0.0003 | 0.0028 ± 0.0005 | 0.0056 |
| 2017 March 17 | I | 0.0026 ± 0.0004 | 0.0023 ± 0.0004 | 0.0052 |
| 2017 March 19 | I | 0.0093 ± 0.0002 | 0.0013 ± 0.0003 | 0.0038 |
| 2017 March 20 | I | 0.0086 ± 0.0005 | 0.0053 ± 0.0004 | 0.0057 |
| 2017 March 21 | I | 0.0014 ± 0.0002 | 0.0031 ± 0.0003 | 0.0039 |
| 2017 November 22 | I | 0.0027 ± 0.0004 | 0.0041 ± 0.0004 | 0.0048 |
| 2017 November 23 | I | 0.0036 ± 0.0003 | 0.0014 ± 0.0003 | 0.0110 |
| 2017 November 24 | I | 0.0154 ± 0.0002 | 0.0042 ± 0.0005 | 0.0092 |
| 2017 November 26 | I | 0.0033 ± 0.0004 | 0.0019 ± 0.0006 | 0.0043 |
| 2017 December 19 | I | 0.0034 ± 0.0003 | 0.0014 ± 0.0004 | 0.0106 |
| 2017 December 23 | I | 0.0018 ± 0.0005 | 0.0017 ± 0.0003 | 0.0046 |
| 2017 December 24 | I | 0.0067 ± 0.0006 | 0.0038 ± 0.0005 | 0.0121 |
| 2017 December 25 | I | 0.0027 ± 0.0002 | 0.0011 ± 0.0003 | 0.0059 |
| 2017 December 27 | I | 0.0061 ± 0.0003 | 0.0017 ± 0.0003 | 0.0018 |
| 2017 December 28 | I | 0.0024 ± 0.0004 | 0.0028 ± 0.0003 | 0.0108 |
| 2017 December 29 | I | 0.0032 ± 0.0002 | 0.0016 ± 0.0003 | 0.0052 |
Notes. Column 1: Date of observation in UT. Column 2: Passband used. Columns 3 and 4: Peak-to-peak amplitude variability with associated errors as measured by the χ2 test. Column 5: Nightly mean photometric error bar for light curve data points, as measured by the iraf.phot routines.
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