Mon Jul 18 22:06:17 1994
We report observations made with a mid-IR imaging spectrometer
of sites F and H. We used the instrument in all 3 modes: in camera
mode to image Jupiter at 7.9 microns; in low-res spectra mode from
8-14 microns with the slit oriented E-W along the impact latitude of
Jupiter; and in high-res spectra mode at 8.19 microns, 10.51 microns,
and 13.4 microns. We observed from 23:20 UT until H rotated off the
disk, at what appeared to be around 01:04 UT. The site of impact H
was clearly visible in 7.9 micron and 10.3 micron images, as well as
in the low-res and high-res spectra. In addition, we saw emission
from a location corresponding to that of fragment F in the spectra
and 7.9-micron images. There appeared to be significant limb brightening
of the spectra of the H impact as it rotated around the limb. We
hope to catch the H-site as it rotates around the dawn terminator at
the end of this night's observing.
Colleen McGhee