September 1998

 

Table 31.1: GBES Tracking Pass Summary for September 1998

		no	% lost			Attended	Unattended
pass	% good	op.	total	hardware	software	% recovered	% recoverable	exp	notes
9809040130	0.00	X	100						not enough prior notice to track
9809050300	26.46		73						HALCA APS/DHU problem
9809070800	28.98	X	71						HALCA APS/DHU problem
9809080200	31.01	X*	68				31		HALCA APS/DHU problem; GIL,AHM recover from power outage
9809090230	10.36		89		20	10			HALCA APS/DHU problem; station computer problem?
9809130830	36.50		63						HALCA APS/DHU problem
9809150445	34.78		65						HALCA APS/DHU problem
9809170720	35.07		64						HALCA APS/DHU problem
9809190335	35.32		64						HALCA APS/DHU problem
9809210609	31.87		68						HALCA APS/DHU problem
9809230844	31.62		68						HALCA APS/DHU problem
9809250459	36.57		63						HALCA APS/DHU problem
9809270733	19.83		80						HALCA APS/DHU problem
9809300506	0.00		100						No HALCA signal

There was a total of 14 tracking passes in September of 1998 with 3 of these being unattended tracking passes. Of the 11 attended tracking passes 10 collected the maximum amount of valid data possible. Of the 3 unattended tracking passes only 1 collected the maximum amount of good data unassited. There was 1 tracking pass that lost data due to HALCA not being commanded. There was 1 tracking pass that was not covered due to not enough prior notice to cover the pass. There were 12 tracking passes that had data lost due to the HALCA emergency with the APS/DHU.

$\bullet$ 10 of 11 attended passes had max good data.

$\bullet$ Operators helped increase amount of good data in 1 of 1 ``bad'' attended passes.

$\bullet$ 1 of 3 unattended passes had max good data.

$\bullet$ Operators would have increased amount of good data in 1 of 2 ``bad'' unattended passes.

$\bullet$ A total of 10.36 tracking passes lost data due to problems with HALCA.

$\bullet$ A total of 0.20 tracking passes lost data due to software problems.