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Table 2
Differential orientation and declination bias between Gaia DR1 and VLBI catalogs.
| Group | A1 | A2 | A3 | dz | Atot |
| (μas) | (μas) | (μas) | (μas) | (μas) | |
|
|
|||||
| ICRF2 −Gaia DR1 | |||||
| All | −98 ± 18 | −32 ± 16 | +8 ± 18 | +120 ± 14 | 103 ± 18 |
| North | −189 ± 23 | −107 ± 22 | −76 ± 25 | +119 ± 19 | 229 ± 23 |
| South | +59 ± 29 | +82 ± 25 | +113 ± 28 | +152 ± 22 | 152 ± 27 |
| Defining | −41 ± 29 | −54 ± 25 | +35 ± 32 | +78 ± 22 | 78 ± 28 |
| Non-def | −134 ± 24 | −15 ± 21 | −8 ± 23 | +148 ± 18 | 135 ± 24 |
|
|
|||||
| gsf2016a −Gaia DR1 | |||||
| All | −81 ± 16 | +0 ± 14 | +21 ± 17 | +46 ± 12 | 84 ± 17 |
| North | −169 ± 22 | −104 ± 20 | −58 ± 23 | +87 ± 17 | 207 ± 21 |
| South | +61 ± 26 | +116 ± 22 | +117 ± 26 | +34 ± 19 | 176 ± 24 |
| Defining | −24 ± 27 | −29 ± 23 | +39 ± 30 | +0 ± 21 | 54 ± 28 |
| Non-def | −113 ± 21 | +17 ± 18 | +8 ± 21 | +73 ± 16 | 115 ± 21 |
Notes. Atot is obtained in the same way as in Table 1.
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