Data Volume Table
The table below lists the sizes of the various data products in DR16. Note that the total data volume is greater than 273 TB, with 103.6 TB new for DR16. 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 16
| 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 |
5.13 TB |
1,466 |
409,654 |
| apo/ecam |
Engineering Camera data |
18.3 GB |
96 |
25,875 |
| apo/gcam |
Guide Camera data |
1.72 TB |
2,854 |
4,862,516 |
| apo/ircam |
Cloud Camera data |
508.7 GB |
3,035 |
3,759,427 |
| apo/mapper |
Plate Mapper data |
205.5 GB |
3,931 |
86,677 |
| apogee/spectro/aspcap |
APOGEE-2 spectro analysis |
4.54 TB |
147,328 |
5,766,239 |
| apogee/spectro/data |
Raw APOGEE spectroscopy (APO 2.5m telescope) |
55.83 TB |
2,395 |
404,049 |
| apogee/spectro/data1m |
Raw APOGEE spectroscopy (APO 1m telescope) |
2.83 TB |
1,359 |
38,773 |
| apogee/spectro/data2s |
Raw APOGEE spectroscopy (LCO 2.5m telescope) |
5.49 TB |
549 |
51418 |
| apogee/spectro/redux/r12 |
APOGEE-2 spectro reductions |
37.6 TB |
48,058 |
10,631,249 |
| apogee/spectro/speclib |
APOGEE-2 synthetic spectra library |
14.3 TB |
102 |
233,188 |
| apogee/target |
APOGEE target files |
47.3 GB |
2 |
2,186 |
| apogee/vac |
APOGEE-2 Value-added Catalogs |
3.6 GB |
35 |
224,407 |
| 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 |
29.1 GB |
3841 |
113,651 |
| 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 |
4.6 GB |
2 |
2 |
| eboss/spectro/data |
Raw spectroscopy for eBOSS, BOSS & SEQUELS plates |
6.36 TB |
2,246 |
496,712 |
| eboss/spectro/firefly |
Firefly Galaxy Properties |
21.8 GB |
3 |
3 |
| eboss/spectro/redux |
2d & 1d BOSS spectro reductions |
20.0 TB |
19,335 |
16,426,981 |
| eboss/spiders/analysis |
SPIDERS analysis VACS |
29.6 MB |
1 |
4 |
| eboss/sweeps/dr13_final |
Photometric sweep catalog |
853 GB |
4 |
31,630 |
| eboss/target |
BOSS targeting files |
2.56 TB |
38 |
112,298 |
| lco/bcam |
Acquisition Camera data |
1.53 TB |
164 |
134,387 |
| lco/ecam |
Engineering Camera data |
58.7 MB |
4 |
76 |
| lco/gcam |
Guide Camera data |
171.9 GB |
248 |
984,972 |
| lco/mapper |
Plate Mapper data |
198.9 MB |
203 |
2,953/td> |
| 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 |
19.41TB |
11,179 |
7,820,671 |
| 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
| 273 TB |
683,781 |
176,584,714 |
