Site Map

Data Volume Table

The table below lists the sizes of the various data products in DR10. Note that the total data volume is about 70 TB. A substantial fraction (~50%) of this is raw or intermediate data that is primarily of interest to experts. If your institution requires most or all of this data you may email us at the helpdesk to contact a data transfer expert.

The Data Volume of Data Release 10
Directory Description Size Running Total
boss/calib/dr8_final Photometric calibration files 946.62 MB 946.62 MB
boss/lss Large Scale Structure Catalog Files 2.16 GB 3.08 GB
apogee/target APOGEE target files 5.90 GB 8.98 GB
sdss/target Legacy targeting files 9.35 GB 18.34 GB
boss/photoObj/plates Matches to photometry 10.03 GB 28.37 GB
sdss/tiling Legacy tiling files 11.11 GB 39.48 GB
sdss/spectro/plates Matches to photometry 11.50 GB 50.98 GB
boss/photoObj/photoz-weight Photometric redshift distributions 12.91 GB 63.90 GB
boss/photoObj/xdqso XDQSO catalog 39.13 GB 103.03 GB
sdss/segue2/target SEGUE-2 target files 65.17 GB 168.20 GB
boss/photoObj/astromqa QA files for astrometry 80.79 GB 248.99 GB
boss/photoObj/atlasOutline Files describing image masks 82.52 GB 331.52 GB
sdss/segue1/target SEGUE-1 targeting files 88.91 GB 420.43 GB
boss/resolve/2010-05-23 Photo resolve files 213.67 GB 634.10 GB
sdss/segue2/targetAll SEGUE-2 targeting on all data 351.79 GB 985.89 GB
sdss/sspp SSPP files 428.06 GB 1.38 TB
boss/sweeps/dr9 Photometric sweep catalog 515.51 GB 1.88 TB
boss/photoObj/external Matches to other catalogs 713.15 GB 2.58 TB
sdss/spectro/data Raw SDSS spectroscopy files 1.33 TB 3.91 TB
boss/spectro/data Raw BOSS spectroscopy files 2.26 TB 6.17 TB
apogee/spectro/redux APOGEE spectro reductions 2.28 TB 8.46 TB
boss/target BOSS targeting files 2.33 TB 10.78 TB
boss/photoObj/301 Complete photometric catalog 3.40 TB 14.18 TB
sdss/spectro/redux 2d & 1d SDSS spectro reductions 5.66 TB 19.85 TB
boss/spectro/redux 2d & 1d BOSS spectro reductions 6.59 TB 26.44 TB
apogee/spectro/data Raw APOGEE spectroscopy files 7.57 TB 34.01 TB
boss/photo/redux Photometric reductions 10.22 TB 44.23 TB
boss/photo/data Raw imaging data 11.55 TB 55.78 TB
boss/photoObj/frames Corrected frame files 15.38 TB 71.16 TB