ACE Weekly 04/01/2015 - 04/08/2015

ACE spacecraft subsystems are performing as expected.  This weekly
covers 8 days in order to include the maneuver performed on Wednesday.
 
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Orbit/Attitude:

	Type            Attitude
	Date           04/09/2015
	DOY            099 2015
	Thrusters      2R 4R+ 4R-
	Duration       9:50 minutes
	Start          00:07:14z
	Stop           00:17:04z
	ra,decStart    21.61,-2.91
	ra,decStop     30.15,0.72
	ra,decExpect   30.38,0.61
	Deviation     0.25deg (-1.8%)
	HGAStart       -8.64 deg
	HGAStop        +7.96 deg
	SunStart       11.16 deg
	SunStop        14.58 deg
	SpinStart     5.0080 rpm
	SpinStop      5.0110 rpm
	Nutation        0.16 deg
	Firing         50 pulses
	FuelUsed        0.1558 lbm
	FuelRemain     99.2696 lbm
	FinalSCMass   1333.529 lbm

The maneuver was delayed to early Thursday morning (4/9 0007z) due to
DSN station problems (see anomalies below).

The next maneuver is scheduled for Tuesday 4/14/2015.

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OCRs:

None
 
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Activities:

Data Capture:  100%  DOY 088-095 2015

Science data playback will be behind due to two lost passes (see
anomalies below).  Playback will be caught up next week (Tuesday
04/14/2015).

04/08/2015 DOY 098 2250-0135  DSN SOE Software Test -- DSN's Sequence Of
Events (SOE) file which provides the timeline for DSN equipment
configuration was generated by the new 0211 interface.

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Anomalies:

DOY 097  04/08/2015  S-ACE-0697  G15-0006  DSN Madrid Site-wide Problem
The ACE pass (1445-1730z) was lost due to a problem with DSN Madrid's
Support Data Loader (SDL).  The problem was resolved 11 minutes before
EOT, which was insufficient for any activities.  DR#M108688
IMPACT:  The attitude maneuver was delayed to Thursday 4/9/2015.
Playback of recorded data delayed and an additional pass was scheduled
for DOY 098 (see below).  No impact to NOAA SWPC since the spacecraft
was in RTSW during this time.

DOY 098  04/09/2015  S-ACE-0698  G15-0007  DSS-54 Antenna Motor
The additional ACE pass (0600-0724z) was lost due to a problem with the
antenna's elevation motor  DR#C111058
IMPACT:  Playback of recorded data delayed.  SSR B full at 0824z.  No
impact to NOAA SWPC since the spacecraft was in RTSW during this time.