MSX Observations of the FUV to NIR Spectrum of Comet Hale-Bopp

L.J. Paxton, D.G. Kupperman, J.F. Carbary, P.J. McEvaddy, D. Morrison, C.-I. Meng (JHU/APL), R.C. Henry (JHU), E.F. Tedesco (MRC), S.D. Price (AFRL)

The Midcourse Space Experiment (MSX) MSX observed Comet Hale-Bopp on March 30, 1997 and April 19, 1997 with the Ultraviolet and Visible Imagers and Spectrographic Imagers (UVISI) instrument suite, a set of nine optical instruments: four multispectral imagers and five spectrographic imagers. MSX obtained hyperspectral images covering the range from 110 to 850 nm, over a 0.1deg x 1deg instantaneous field of view as the spacecraft slewed to the nucleus. These images consist of a spectrum over the entire spectral range for each effective 0.1 deg by 0.1 pixel element. In the April 19 observing sequence 20 minutes of observations were obtained during the 8 deg slew along the comet's dust tail. The spectra contain emissions from C, O, CO, CO+, S, OH, CO2+, NH, C2, C3, and NH2. The OH(0,0) band was observed to have an intensity of over 100kR.