Table 1
Log of NuSTAR observations of HD 93250.
| Sr. no. | Obs. ID | Orbital phase | Detector | Obs. date | Start time (UT) | Livetime(a) (s) | Offset(b) (′) | C1(c) | C2(d) |
|---|---|---|---|---|---|---|---|---|---|
| (counts) | |||||||||
| 1 | 30002040004 | 0.339 | FPMA | 2014-07-28 | 10:31:07 | 61373 | 6.298 | 129 ± 18 | 149 ± 12 |
| FPMB | 61280 | 260 ± 20 | 242 ± 15 | ||||||
| 2 | 30002010007 | 0.409 | FPMA | 2014-08-11 | 05:36:07 | 31033 | 6.949 | 61 ± 11 | 71 ± 8 |
| FPMB | 31010 | 103 ± 13 | 117 ± 11 | ||||||
| 3 | 30002010008 | 0.414 | FPMA | 2014-08-11 | 23:01:07 | 56943 | 6.337 | 129 ± 18 | 231 ± 16 |
| FPMB | 56870 | 248 ± 19 | 246 ± 16 | ||||||
| 4 | 30002010010 | 0.454 | FPMA | 2014-08-19 | 16:41:07 | 54524 | 5.755 | 115 ± 18 | 211 ± 15 |
| FPMB | 54480 | 177 ± 18 | 213 ± 15 | ||||||
| 5 | 30002010012 | 0.647 | FPMA | 2014-09-26 | 00:41:07 | 81454 | 5.009 | 200 ± 22 | 279 ± 17 |
| FPMB | 81320 | 306 ± 24 | 282 ± 17 | ||||||
| 6 | 30402001004 | 0.974 | FPMA | 2018-08-20 | 00:36:09 | 33075 | 7.814 | 131 ± 15 | 143 ± 12 |
| FPMB | 32890 | 136 ± 16 | 122 ± 11 | ||||||
| 7 | 90501354002 | 0.418 | FPMA | 2019-12-07 | 21:11:09 | 42457 | 7.230 | 166 ± 18 | 182 ± 13 |
| FPMB | 42160 | 114 ± 14 | 145 ± 12 | ||||||
| 8 | 30602030004 | 0.756 | FPMA | 2020-08-23 | 12:06:09 | 102221 | 5.443 | 312 ± 28 | 408 ± 20 |
| FPMB | 101400 | 442 ± 27 | 407 ± 20 | ||||||
Notes. (a)LIVETIME is the exposure time corrected for periods of dead time. (b)Offset between HD 93250 position at the detector plane and the telescope pointing. (c)Background-corrected net source counts in 3.0–10.0 keV energy range. (d)Total counts in 10.0–78.0 keV at the position of HD 93250 without background subtraction.
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