October 1999

 

Table 57.1: GBES Tracking Pass Summary for October 1999

		no	% lost			Attended	Unattended
pass	% good	op.	total	hardware	software	% recovered	% recoverable	exp	notes
9910011115	98.88	Y	1	1					Decoder time not set properly, 26 second dropout at 12h39m58
9910020613	97.29	X	2						HALCA signal late, high noise at end of pass
9910021232	99.56							W044f3	Tape drive 1 problems - no data lost
9910030730	93.71	Y	6						HALCA signal late, periods of high niose
9910030838	99.88	Y							periods of high niose
9910040954	99.80	Y							periods of high niose, phase glitch
9910051004	99.64	Y							periods of high niose, HALCA signal late, large phase glitch
9910061122	99.62	Y							HALCA signal late, phase glitches
9910061835	99.84	Y							periods of high niose
9910071239	99.58							W096a	periods of high niose, HALCA signal late
9910270643	98.95	Y							no Telemetry housekeeping data from HALCA, periods of high niose, HALCA signal late
9910271449	99.37	Y							no Telemetry housekeeping data from HALCA, periods of high niose
9910280800	99.14	Y							no Telemetry housekeeping data from HALCA, HALCA signal late
9910281619	98.64	Y							no Telemetry housekeeping data from HALCA, phase glitch
9910290918	99.21	Y							no Telemetry housekeeping data from HALCA, periods of high niose, HALCA signal late
9910301035	99.14	Y							no Telemetry housekeeping data from HALCA, periods of high niose, HALCA signal late, phase glitch
9910311152	99.24	Y							periods of high niose, HALCA signal late, phase glitch

There was a total of 17 tracking passes in October of 1999 with one of these being an unattended tracking pass. Of the 16 attended tracking passes 16 collected the maximum amount of valid data possible. The one unattended tracking pass collected the maximum amount of good data. 2 tracking passes lost data due to the link from HALCA not showing up on time. One tracking passes lost data due to twenty or thirty second dropouts of the HALCA signal.

Of the 2 recording passes, 2 collected the maximum amount of good data.

14 tracking passes were observed ``remotely'' from the Jansky Operations Center. None of these tracking passes lost data due to a hardware or software problem.

$\bullet$ 16 of 16 attended passes had max good data.

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

$\bullet$ 2 of 2 recording passes were completely successful.

$\bullet$ 2 of 2 recording passes were at least 80% successful.

$\bullet$ A total of 0.08 tracking passes lost data due to the signal from HALCA being late.

$\bullet$ 14 of 14 tracking passes observed from the JOC were succesfull.