As part of SDSS-II, SEGUE utilized the 2.5 meter SDSS telescope on Apache Point in New Mexico to obtain ugriz imaging data at moderate to low Galactic latitude (|b| < 35 degrees) and spectroscopy of selected stellar targets over the wavelength range 3,800 Å ~ 9,200 Å.
SEGUE ultimately acquired:
Accessing the Data
Survey Strategy and Algorithms
SEGUE began taking data in August of 2004, and completed its targeted data set in 2008. The SDSS DR7 data release was the final release.