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Table 1
Input catalogues.
| Catalogue | Code | Software | ME [μas] | Note | |
| α/δ | |||||
|
|
|||||
| aus2012b | AUS | Occam | 76/86 | (1) | |
| bkg2012a | BKG | Calc/Solve | 28/40 | (1) | |
| cgs2012a | CGS | Calc/Solve | 26/38 | (1) | |
| gsf2012a | GSF | Calc/Solve | 24/36 | (2) | |
| igg2012b | IGG | VieVS | 49/62 | (3) | |
| opa2013a | OPA | Calc/Solve | 27/37 | (1) | |
| rfc2013a | RFC | Calc/Solve | 105/110 | (4) | |
| sha2012b | SHA | Calc/Solve | 27/38 | (3) | |
| usn2012a | USN | Calc/Solve | 29/41 | (3) | |
Notes. ME is the median position error for the sources in common.
Reference. (1) http://ivscc.gsfc.nasa.gov/products-data/products.html (2) http://gemini.gsfc.nasa.gov/solutions/astro/. (3) priv. comm. (4) http://astrogeo.org/rfk/
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