On the night of July 21 we continued to monitor the eastern limb of
Jupiter with the 3.5m and 2.2m telescopes at the Calar Alto
Observatory. We observed no sign of the T impact (which occured here
before sunset). The T impact site was on top of the E and F spots
which made identification of an event difficult. The U fragment was
predicted to strike in the old K site. We saw a brief rise in the
brightness of the region at 22:10 lasting perhaps a minute. If this
was the U impact, then it certainly was unlike previous events!
The Calar Alto Observing Team: Tom Herbst, Kurt Birkle, Ulrich Thiele, Doug Hamilton, Hermann Boehnhardt Alex Fiedler, Karl-Heinz Mantel, Jose Luis Ortiz, Giovanni Calamai, Andrea Richichi, Bringfried Stecklum.