NSSDCA ID: 1975-083A-03
Mission Name: Viking 2 OrbiterThe MAWD used an infrared grating spectrometer mounted on the orbiter scan platform that was boresighted with the television cameras and the IRTM. The instrument measured solar infrared radiation reflected from the surface through the atmosphere to the spacecraft. Spectral intervals were selected coincident with the wavelength of water vapor absorption lines in the 1.4-micrometer band. The quantity of water vapor along the line of sight was measured from 1 to 1000 micrometers of precipitable water with an accuracy of 5 % or better. The instantaneous field of view of the instrument was 2 x 17 milliradians, and a stepping mirror rotated the line of sight through 15 positions to provide a roughly rectangular field of view of 17 x 31 milliradians.
Questions and comments about this experiment can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Crofton B. Farmer | Team Leader | NASA Jet Propulsion Laboratory | bfarmer@mail2.jpl.nasa.gov |
Mr. Dan Laporte | Team Member | Santa Barbara Research Center | |
Dr. Donald W. Davies | Team Member | NASA Jet Propulsion Laboratory | ddavies@rainbow.sp.trw.com |