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COBE Satellite: Caption

Illustration of the COBE satellite showing locations of its measurement instruments. The COBE satellite was developed by NASA's Goddard Space Flight Center to measure the diffuse infrared and microwave radiation from the early universe, to the limits set by our astrophysical environment. It was launched November 18, 1989 and carried three instruments, a Far Infrared Absolute Spectrophotometer (FIRAS) to compare the spectrum of the cosmic microwave background radiation with a precise blackbody, a Differen tial Microwave Radiometer (DMR) to map the cosmic radiation precisely, and a Diffuse Infrared Background Experiment (DIRBE) to search for the cosmic infrared background radiation. The cosmic microwave background spectrum was measured with a precision of 0.03%, the background was found to have intrinsic anisotropy for the first time, at a level of a part in 10^5, and absolute sky brightness maps from 1.25 microns to 240 microns have been obtained to carry out the search for the cosmic infrared background.

This image is fromthe COBE home page (http://www.gsfc.nasa.gov/astro/cobe/cobe_home.html). The COBE datasets were developed by the NASA Goddard Space Flight Center under the guidance of the COBE Science Working Group and were provided by the National Space Science Data Center (NSSDC).

For further information about COBE data contact:

David Leisawitz
Astrophysics Data Facility
Code 631, NASA/GSFC
Greenbelt, MD 20771, USA

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Copyright, (c) 1995: Board of Trustees, University of Illinois

NCSA. Last modified 11/1/95.