Open Access
Table 3
Astrometric calibration of HiRISE.
| IRDIS | HiRISE detector | HiRISE sky | |||||
|---|---|---|---|---|---|---|---|
| Target | Epoch | Sep. sky | PA sky | Sep. | PA | Pixel scale | North correction |
| (mjd) | (mas) | (deg) | (pixel) | (deg) | (mas pixel−1) | (deg) | |
| HIP 103311 | 60137.2326 | 774.11 ± 0.25 | 317.08 ± 0.04 | 60.28 ± 0.03 | 47.35 ± 0.16 | 12.842 ± 0.008 | 90.27 ± 0.31 |
| HIP 109344 | 60137.2498 | 701.04 ± 0.23 | 22.06 ± 0.04 | 54.69 ± 0.03 | 112.44 ± 0.16 | 12.818 ± 0.008 | 90.38 ± 0.21 |
| HIP 65288 | 60137.9681 | 761.39 ± 0.25 | 245.17 ± 0.04 | 59.67 ± 0.02 | 335.53 ± 0.15 | 12.760 ± 0.006 | 90.36 ± 0.04 |
| HIP 77939 | 60138.0090 | 362.80 ± 0.12 | 111.99 ± 0.04 | 28.39 ± 0.04 | 202.40 ± 0.16 | 12.779 ± 0.019 | 90.41 ± 0.08 |
| HIP 82460 | 60138.0694 | 805.10 ± 0.26 | 170.27 ± 0.04 | 62.81 ± 0.04 | 260.64 ± 0.16 | 12.818 ± 0.009 | 90.37 ± 0.06 |
| HIP 95925 | 60138.2418 | 786.74 ± 0.26 | 29.48 ± 0.04 | 61.44 ± 0.03 | 120.06 ± 0.16 | 12.805 ± 0.008 | 90.58 ± 0.17 |
| HIP 114382 | 60138.3045 | 823.06 ± 0.27 | 149.19 ± 0.04 | 64.36 ± 0.07 | 239.49 ± 0.16 | 12.788 ± 0.015 | 90.30 ± 0.07 |
| HIP116880 | 60138.4111 | 690.17 ± 0.23 | 195.24 ± 0.04 | 53.82 ± 0.04 | 285.76 ± 0.16 | 12.824 ± 0.010 | 90.52 ± 0.05 |
| Weighted mean | 12.805 ± 0.027 | 90.40 ± 0.08 | |||||
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