November 1997

 

Table 11.1: GBES Tracking Pass Summary for November 1997

		no	% lost			Attended	Unattended
pass	% good	op.	total	hardware	software	% recovered	% recoverable	exp	notes
9711011914	98.72								HALCA Ku antenna unwrap
9711031528	97.48		2	2		>90			Az jumps; decoder problem
9711041654	98.70								HALCA Ku antenna wrap
9711051803	96.96		2	2				V053e3	HALCA Ku antenna wrap; El jumps
9711081545	88.07		10	2		>90			HALCA ant wrap; El jumps; SNOW
9711091711	36.39	X	63	63			63		Az, el jumps; breaks set
9711101819	98.03							V330c	HALCA Ku antenna wrap; El jumps
9711121438	97.83								HALCA Ku antenna wrap; El jumps
9711141716	99.04								Elevation jumps
9711151835	0.00		100					VT907	no signal from HALCA
9711171646	93.25		6		6				Dispatch, Monchk problems
9711181612	96.52		3	3		96			Breaks turned on
9711191903	99.86
9711201851	89.05		10		10			VS04s	El jumps; CPU crashed
9711221703	95.27		4	4		95			TWT problems
9711241747	99.20							V046a
9711251249	85.40		14	14		85			Peltier problems
9711261500	99.92
9711281903	0.00	X	100	100			??		Decoder problems
9711291143	58.73		41	41		55			Decoder problems
9711292033	0.00	X	100	100					Decoder problems
9711301314	0.00	X	100	100					Decoder problems

There was a total of 22 tracking passes in November of 1997 with 4 of these being unattended tracking passes. Of the 18 attended tracking passes 9 collected the maximum amount of valid data possible. Problems with HALCA resulted in the loss of data from 1 tracking pass. Software problems resulted in the loss of data on 2 attended tracking passes while hardware problems resulted in the loss of data on 7 of the attended tracking passes. The operators were able to increase the amount of valid data collected in 6 of the 9 passes were data was lost due to hardware or software problems. Of the unattended tracking passes 0 of 4 obtained the maximum amount of valid data. The presence of an operator at the ``bad'' unattended tracking passes would have increased the amount of good data in 1-2 of 4 passes.

Of the 5 recording passes, 3 collected the maximum amount of good data while the other two recording passes lost 2% and 10% of the data during the pass.

$\bullet$ 9 of 18 attended passes had max good data.

$\bullet$ Operators helped increase amount of good data in 6 of 9 ``bad'' attended passes.

$\bullet$ 0 of 4 unattended passes had max good data.

$\bullet$ Operators would have increased amount of good data in 1-2 of 4 ``bad'' unattended passes.

$\bullet$ A total of 0.16 tracking passes lost data due to software problems.

$\bullet$ A total of 4.31 tracking passes lost data due to hardware problems.

$\bullet$ A total of 1.00 tracking passes lost data due to problems with HALCA.

$\bullet$ Inclement weather resulted in the loss of 0.08 tracking passes.

$\bullet$ 3 of 5 recording passes were completely successful.

$\bullet$ A total of 0.12 recording passes lost data.