DECam is a high-performance, wide-field CCD imager mounted at the prime focus of the Blanco 4-m telescope at CTIO. DECam imager contains 62 science CCDs with 520 megapixels and images 3 square degrees (2.2 degree wide field) at 0.27 arcsecond/pixel resolution.
DECam was built to carry out the Dark Energy Survey (DES) Project by the DES Collaboration, which is a Fermilab-led international collaboration of over 120 scientists from 15 institutions and consortia in the USA, UK, Spain, Brazil and Germany. DECam is an NOAO facility instrument, available to all users. The DES Collaboration, in exchange for the instrument and a community pipeline will receive 525 nights over 5 years to carry out the Dark Energy Survey. The project is funded by the DOE and NSF, the funding agencies of the UK, Spain, Brazil, and Germany, and contributions from the Collaboration institutions.
2014 February 20. A VR filter, covering 500-760 nm so approximately twice the bandpass of the SDSS filters, has been successfully constructed. We hope it will arrive in time to be installed during the week of March 11, which is engineering time.
2013 December 17: The Blanco dome encoder system has been replaced. The new tape and reader provide accurate readings of the dome position (to better than one degree) and misalignments of telescope and dome should now be a thing of the past.
2013 November 30: CCD S30 is not working. Unlike the failure of N30 a year ago that was associated with over-illumination, S30 is exhibiting problems with one of its bias voltages. It is not 100% sure whether the fault is with the CCD or associated electronics, tests are proceeding.
2013 October 28: ETC updated to correct an incorrect value for the telescope collecting area, and also it now handles all lunar phases
CTIO DECam Support Pages (Internal Use Only)
CTIO DECam Support Staff for 2013A&B
CTIO DECam Support Staff for 2014A
DECam PropIDs & Special Cases (internal use only)