Tue Jul 19 13:47:42 1994
Finally clouds gave way to photometric conditions in Baja Mexico at the SPM Observatory. We were able to start at 01:15 UT (local time of 6:15pm--not bad for a telescope not optomized for IR [to say the least]) after focusing, etc. Immediately, we say the same three spots from the previous night: E/F, A, and C. E/F was still the brightest by far outshinging Europa at 2.3 and 16 microns.
Last sighting of F/E: 02:27, but it was merging with A due to the aspect and is difficult to measure accurately at this time. (All times Jul 19 UT unless specified).
Last sighting of A: 03:21.
The G impact sight came into view at almost exactly the same time C was last sighted at 03:54. G was obviously much brighter than even F/E and as it rotated into a better aspect angle was obviously a double spot. Is this G1 and G2 or G and D (as Heidi cautioned)?
H first appeared 05:44 (please don't calculate the airmass and send that information to the director).
Both G and H show an obvious assymetry in that the gradient is steeper on the trailing side. This is not an aspect phenomenon since we were able to observe G beyond the meredian transit and was NOT seen for the other spots.
Waiting for the newest spots! Good rock around here, but all this observing is getting in the way of climbing...