gdr2mock.astromeivo://org.gavo.dc/gdr2mock/q/astrometric_performance6doi:10.21938/SYx.JVejuu66uzDiLcfRlAThe GAVO DC teamRybizki, J.Demleitner, M.Fouesneau, M.Bailer-Jones, C.Rix, H.-W.Andrae, R.2020-05-04T09:28:20Z2018-07-242018-05-172018-04-25GAVO Data Centre Team

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gavo@ari.uni-heidelberg.de+49 6221 54 1837astrostatistics-techniquesmilky-way-galaxyastronomical-simulationsThis table gives numerical factors to be applied to the sky-averaged astrometric errors for the different astrometric parameters as function of ecliptic latitude β, including the effect of the variation of the number of transits over the sky. Source: https://www.cosmos.esa.int/web/gaia/table-62018PASP..130g4101Rhttp://dc.g-vo.org/tableinfo/gdr2mock.astrometric_performance6SimulationResearchOpticalInfraredgdr2mock This catalogue is a simulation of the Gaia DR2 stellar content using Galaxia (a tool to sample stars from a Besancon-like Milky Way model), 3d dust extinction maps and the latest PARSEC Isochrones. It is mimicking the Gaia DR2 data model and an apparent magnitude limit of g=20,7. Extinctions and photometry in different bands have also been included in a supplementary table as well as uncertainty estimates using a scaled nominal error model.gdr2mock.astrometric_performance6This table gives numerical factors to be applied to the sky-averaged astrometric errors for the different astrometric parameters as function of ecliptic latitude β, including the effect of the variation of the number of transits over the sky. Source: https://www.cosmos.esa.int/web/gaia/table-621lat_indexBin index, starting at 1meta.id;meta.main00.610.019.4201.0shortindexedprimarysinbetbinBin in absolute ecliptic latitude0.0250.05350.50.94650.9750.952381floatnullablealpha_ratioThe error factor (including nobs) to be multiplied with the nominal parallax error to derive the eom ra error for a specific ecliptic latitude binstat.error;arith.ratio0.4690.506620.7921.023151.0260.952381floatnullabledelta_ratioThe error factor (including nobs) to be multiplied with the nominal parallax error to derive the eom dec error for a specific ecliptic latitude binstat.error;arith.ratio0.6070.614980.70550.756430.7570.952381floatnullableparallax_ratioThe error factor (including nobs) to be multiplied with the nominal parallax error to derive the eom parallax error for a specific ecliptic latitude binstat.error;arith.ratio0.7130.723261.05751.181.180.952381floatnullablepmra_ratioThe error factor (including nobs) to be multiplied with the nominal parallax error to derive the eom pmra error for a specific ecliptic latitude binstat.error;arith.ratio0.3270.357780.5660.723290.7250.952381floatnullablepmdec_ratioThe error factor (including nobs) to be multiplied with the nominal parallax error to derive the eom pmdec error for a specific ecliptic latitude binstat.error;arith.ratio0.4230.430980.49950.5420.5420.952381floatnullable