Data Volume Table

The table below lists the sizes of the various data products in DR15.  Note that the total data volume is greater than 170 TB, with 15 TB new for DR15. 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.

There are additional, small value-added catalogs that may not be listed here, due to the timing of their release.

The Data Volume of Data Release 15

Directory Description Size Dir Count File Count
apo/logs APO observing logs 91.6 GB 433 42,515
apo/spectro All raw APO (BOSS) spectroscopy 3.25 TB 972 259,552
apo/ecam Engineering Camera data 11.2 GB 76 16,602
apo/gcam Guide Camera data 1.51 TB 2,536 4,358,304
apo/ircam Cloud Camera data 403 GB 2,389 2,909,569
apo/mapper Plate Mapper data 113 GB 3,394 71,042
apogee/spectro/data Raw APOGEE spectroscopy 39.3 TB 1,747 288,438
apogee/spectro/data1m Raw APOGEE spectroscopy (1-m telescope) 1.81 TB 712 29,951
apogee/spectro/redux/r8 APOGEE-2 spectro reductions 19.6 TB 110,521 10,815,301
apogee/spectro/redux/speclib APOGEE-2 synthetic spectra library 9.53 TB 93 36,155
apogee/target APOGEE target files 29.3 GB 115 1,537
eboss/calib/dr13_final Photometric calibration files 534 MB 1,529 4,584
eboss/photo/data Raw imaging data 28.0 TB 38,286 17,509,208
eboss/photo/redux Photometric reductions 11.2 TB 33,354 23,607,804
eboss/photo/sky Photometric reductions 1.28 TB 7,138 5,224,814
eboss/photoObj/301 Complete photometric catalog 3.74 TB 5,355 944,167
eboss/photoObj/astromqa QA files for astrometry 86.7 GB 43,623 6,502,050
eboss/photoObj/atlasOutline Files describing image masks 1.58 TB 5,541 21,978,745
eboss/photoObj/external Matches to other catalogs 1.38 TB 58,932 9,571,919
eboss/photoObj/frames Corrected frame files 16.9 TB 5,357 6,568,618
eboss/photoObj/photoz-weight Photometric redshift distributions 13.9 GB 0 1121
eboss/photoObj/plates/2013-07-29 Matches to photometry 20.5 GB 2950 51,064
eboss/photoObj/xdqso XDQSO catalog 42.0 GB 1 695
eboss/resolve/2013-07-29 Photo resolve files 196 GB 6,658 2,254,512
eboss/qso QSO Catalog Files 2.55 GB 8 32
eboss/spectro/data Raw spectroscopy for eBOSS, BOSS & SEQUELS plates 6.36 TB 2,246 496,712
eboss/spectro/redux 2d & 1d BOSS spectro reductions 15.2 TB 14,745 12,526,406
eboss/sweeps/dr13_final Photometric sweep catalog 853 GB 4 31,630
eboss/target BOSS targeting files 2.56 TB 38 112,298
manga/spectro/analysis MaNGA Data Analysis Pipeline 1.60 TB 44,024 179,632
manga/spectro/data Raw spectroscopy for MaNGA plates 2.98 TB 850 235,928
manga/spectro/mastar MaStar 840 MB 2 2
manga/spectro/redux MaNGA Reduced Data (2d individual exposures & 3d summary stacks) 9.55 TB 7,132 553,326
marvels/spectro/data Raw MARVELS spectroscopy files 823 GB 1,909 27,113
marvels/spectro/redux MARVELS spectro reductions 44.1 GB 188 11,778
marvels/target MARVELS target files 115 MB 152 995
sdss/segue1/target SEGUE-1 targeting files 95.5 GB 1 233
sdss/segue2/target SEGUE-2 target files 70.0 GB 895 17,118
sdss/segue2/targetAll SEGUE-2 targeting on all data 378 GB 2294 15,288
sdss/spectro/data Raw SDSS spectroscopy files 1.47 TB 4,788 1,333,333
sdss/spectro/plates Matches to photometry 12.3 GB 2,706 22,361
sdss/spectro/redux 2d & 1d SDSS spectro reductions 6.11 TB 11,177 7,820,664
sdss/sspp SSPP files 460 GB 35,866 3,842,197
sdss/target Legacy targeting files 10.0 GB 516 9,177
sdss/tiling Legacy tiling files 11.9 GB 1086 39,656
Total 156 TB 412,197 139,140,773