These Gaia data files were generated by the 'gaia-edr3-extract.sh' and 'mkgalaxy' utilities in the bsrender package (https://github.com/kevinloch/bsrender) version 0.9.  The original source data is the ESA's Gaia EDR3 dataset: https://www.cosmos.esa.int/web/gaia/earlydr3

The galaxy-external.dat data file contains some stars that were too bright to have their parallax measured by the Gaia satellite, or were obscured by a bright star.  These stars have been manually added to external.csv and processed with the 'mkexternal' utility

The default settings in mkgalaxy.c were used for the Gaia data files:

  -b      Use bp/G and rp/G bandpass ratios to estimate effective temperature
  -p 0.2  Override parallax if lower than this value or set to zero to disable override

  Lindegren et al parallax correction is disabled.
  Gaia EDR3 color wavenumber fields are only used if bp and rp flux are not available

There is no metadata in these files but you can use the following md5 checksums to verify files are from this dataset.

dataset: GEDR3/bsrender-0.9/bandpass=1/calibrated=0/minimum_parallax=0.020
MD5 (galaxy-external.dat) = 1ba1180a66a18080202529abb702effc
MD5 (galaxy-pq000.dat) = 09a3fd7e2bc57c318f84ff531e6dc1ef
MD5 (galaxy-pq001.dat) = c916994689e37467b2ac3fb14d790827
MD5 (galaxy-pq002.dat) = 8fbdf42d2853a654e62c202714acd89c
MD5 (galaxy-pq003.dat) = 316fac1bd72fa6c6e40f03cc7ed2eaea
MD5 (galaxy-pq005.dat) = 811346f4c29b81cc7c2a86fb69340c59
MD5 (galaxy-pq010.dat) = dd91747ae0263ad0ce209a23097b9bcf
MD5 (galaxy-pq020.dat) = 8e97b02907e6165648163f6969467eb0
MD5 (galaxy-pq030.dat) = e3ffe83ee549c027ea228412a0671024
MD5 (galaxy-pq030.dat) = e3ffe83ee549c027ea228412a0671024
MD5 (galaxy-pq050.dat) = 5111d213a3ca0b932b27ad9a18710bc1
MD5 (galaxy-pq100.dat) = 358d63f6cb2132d71f8578534df7b91a

input records: 1811709771
pq000:          702435883
pq001:          284451214
pq002:          157970346
pq003:          128186394
pq005:           93831732
pq010:           49465403
pq020:           17788913
pq030:           14670748
pq050:           10572594
pq100:            5837823
no parallax:    341043382
parallax unusable:      0
no_G_flux:        5455339

Output from mkgalaxy:

status, input records: 1811709771, output records by parallax quality (pq000: 702435883, pq001: 284451214, pq002: 157970346, pq003: 128186394, pq005: 93831732, pq010: 49465403, pq020: 17788913, pq030: 14670748, pq050: 10572594, pq100: 5837823),
  no parallax: 341043382, parallax unusable: 0, no_G_flux: 5455339, color temp derived from (bp/rp: 1347121040, bp/G: 453516, rp/G: 2792977, nu_eff_used_in_astrometry: 230686, pseudocolor: 114612831, min_t_count: 264657, max_t_count: 75938), incremental time: 4.203s, total time: 9490.095s

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This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.