[Isocops] IBEX CEU SOH check for Orbits 131-132

[Mark Tapley]

IBEX instrument teams,
	Continuing to try to catch up. Only 28 orbits = 56 segments to go!

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	For Arc 131a: No obvious spin problems. All nominal.

	For Arc 131b: No obvious spin problems. IBEX-HI Positive 
collimator Current shows some unusual "squiggles" near the end of the 
arc. IBEX-Lo MCP Volt Monitor shows "fuzz" days 5.7-7.5 and 8.3-9, 
reflected as usual in Positive 12V CEU Switch Current. Notably, the 
fuzz is suppressed when the -Lo PMT voltage is set back. Otherwise 
nominal.

	For Arc 132a: No obvious spin problems. At day 2.4, IBEX-HI 
CEM Back Count goes far beyond the yellow limit and nearly to the red 
limit, with another minor excursion around day 2.7; the high yellow 
excursion is reflected in IBEX-Hi Positive collimator current and 
Positive 12 Volt CEU Switch Current. Around day 2, there are a series 
of steps in IBEX-Hi CEM current that look like a gain scan; this is 
also apparent in IBEx-HI CEM Voltage and IBEx-HI ESA Voltage shows 
zeros consistent with this as well. Otherwise nominal.

	For Arc 132b: Spin error around day 8 (DOY 198.3 or so) shown 
in General Status, ACS plots of Rotation Error, Pulse Error and Axis 
Error, Spin Rate Error, and ADC values (with ComputedFractionValid 
down to 0.1 or less). IBEX-Hi Positive Collimator Current shows some 
noise at the end of the last day. IBEX-Lo MCP Volt Monitor shows 
"fuzz" days ~6-end, reflected as usual in Positive 12V CEU Switch 
Current.

-- 
						- Mark     210-379-4635
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