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Table 2
Systematics and statistics of the difference to ICRF2.
| Transformation parameters | rms | χ 2 | ||||||||||||||||
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| A 1 | ± | A 2 | ± | A 3 | ± | D α | ± | D δ | ± | B δ | ± | αcosδ | δ | αcosδ | δ | |||
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| All sources | ||||||||||||||||||
| aus2013a | −27 | 5 | 0 | 5 | −2 | 4 | 12 | 5 | 19 | 6 | −10 | 4 | 77 | 77 | 3.1 | 2.6 | ||
| bkg2013a | −4 | 4 | 12 | 4 | −5 | 3 | 1 | 4 | 12 | 5 | 13 | 3 | 56 | 75 | 5.0 | 4.5 | ||
| gsf2012a | −1 | 4 | 6 | 4 | −6 | 3 | −2 | 4 | 16 | 5 | −16 | 3 | 47 | 63 | 4.4 | 4.0 | ||
| iaa2012a | −8 | 4 | 7 | 4 | −6 | 3 | −11 | 4 | 63 | 5 | −26 | 4 | 57 | 76 | 1.9 | 2.0 | ||
| opa2013a | −7 | 4 | 12 | 4 | −10 | 3 | 1 | 4 | 5 | 5 | 4 | 3 | 50 | 64 | 4.4 | 4.0 | ||
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| Defining sources | ||||||||||||||||||
| aus2013a | −21 | 6 | 1 | 6 | −1 | 5 | 14 | 6 | 24 | 7 | −13 | 5 | 63 | 60 | 13.9 | 10.3 | ||
| bkg2013a | −2 | 5 | 12 | 5 | −4 | 4 | 2 | 5 | 19 | 6 | 12 | 4 | 45 | 55 | 18.6 | 14.3 | ||
| gsf2012a | −2 | 5 | 7 | 5 | −4 | 4 | −2 | 5 | 19 | 6 | −14 | 4 | 41 | 54 | 20.0 | 17.1 | ||
| iaa2012a | −6 | 6 | 5 | 6 | −7 | 4 | −7 | 6 | 74 | 7 | −30 | 5 | 44 | 63 | 6.4 | 7.8 | ||
| opa2013a | −4 | 5 | 13 | 5 | −10 | 4 | 1 | 5 | 9 | 6 | 5 | 4 | 45 | 54 | 21.4 | 16.5 | ||
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| Non-defining sources | ||||||||||||||||||
| aus2013a | −41 | 9 | −2 | 8 | −5 | 7 | 8 | 9 | 4 | 11 | 2 | 8 | 125 | 134 | 1.6 | 1.4 | ||
| bkg2013a | −6 | 7 | 12 | 6 | −8 | 5 | 0 | 6 | 1 | 8 | 16 | 6 | 79 | 109 | 3.1 | 3.1 | ||
| gsf2012a | −2 | 6 | 5 | 6 | −9 | 5 | −3 | 6 | 13 | 8 | −19 | 6 | 61 | 81 | 2.2 | 2.1 | ||
| iaa2012a | −12 | 7 | 8 | 6 | −6 | 5 | −15 | 7 | 46 | 9 | −16 | 6 | 80 | 100 | 1.2 | 1.1 | ||
| opa2013a | −10 | 7 | 11 | 6 | −11 | 5 | 2 | 6 | 1 | 8 | 1 | 6 | 63 | 85 | 2.0 | 2.1 | ||
Notes. Units are μas except for Dα and Dδ which are in μas per radian.
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