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Table 1
Timings of the optical mid-eclipses observed with OM.
| Cycle |
|
(O–C) (a) | (O–C) (b) |
| (MJD) | (10-4 days) | (10-4 days) | |
|
|
|||
| 170 857 | 52 992.90730 | –2.8 | –0.2 |
| 170 858 | 52 992.98192 | –1.6 | +1.0 |
| 170 859 | 52 993.05623 | –3.5 | –0.9 |
| 170 861 | 52 993.20521 | –3.7 | –1.1 |
| 170 863 | 52 993.35439 | –1.9 | +0.7 |
| 170 864 | 52 993.42887 | –2.1 | +0.5 |
| 170 866 | 52 993.57783 | –2.5 | +0.1 |
| 170 867 | 52 993.65230 | –2.7 | –0.1 |
| 170 869 | 52 993.80135 | –2.3 | +0.3 |
| 170 870 | 52 993.87587 | –2.0 | +0.5 |
| 170 871 | 52 993.95026 | –3.1 | –0.5 |
Notes. The error associated with the estimate of each ingress/egress mid-point time is 3 s. The (O–C) (a) values were computed with respect to the sinusoidal ephemeris of Baptista et al. (2002). The (O–C) (b) values refer to the linear ephemeris in Dai et al. (2009).
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