SDSS Data Products

SDSS SkyServer

Data Release Schedule: Timeline for public release of SDSS data products.

• June, 2007: Data Release Six:
  9,583 square degrees, 1,271,680 spectra.


• June, 2006: Data Release Five:
  8000 square degrees, 1,048,960 spectra.


• June, 2005: Data Release Four:
  6670 square degrees, 806,400 spectra.


• September, 2004: Data Release Three:
  5282 square degrees, 528,640 spectra.


• March, 2004: Data Release Two:
  3324 square degrees, 367,360 spectra.


• April, 2003: Data Release One:
  2099 square degrees, 186,240 spectra.


• June, 2001: Early Data Release:
  462 square degrees, 52,896 spectra.


• December, 1998: SDSS Sampler CD-ROM, Volume 1:
  Contains a sample of one of the first engineering runs of the SDSS telescope and imaging camera.