[Isocops] IBEX Goat Herder 20 Apr 11

Wed Apr 20 05:15:16 EDT 2011

RAZOR# 457  was opened for the ACE Reset
We will have a call at 2:30 Eastern to discuss an ACE reset in orbit 121.
1-866-588-1857
pin# 289 1982

Telemetry from the 4/20 0215 pass showed that the ACE reset ~6 days ago.
The reset did not put the spacecraft in Contingency State.
The contact was extended 35 minutes to verify completion of the inertial
maneuver commands
The spacecraft BUS and re-pointing maneuver was nominal.

Walker was present during the contact and will give a full report on ACE
procedure & telemetry observed.
The ISOC will review the quicklook payload data to give a status on the data
taken from the orbit and
determine if de-spinning due to default CEU spin rate is needed.

-- 
Sheral R. Wesley
SPVR., Satellite Operations
IBEX Mission OPS
(304) 279-6678
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IBEX Goat Herder 20 Apr 11
RAZOR# 457  was opened for the ACE Reset
We will have a call at 2:30 Eastern to discuss an ACE reset in orbit 121.
1-866-588-1857
pin# 289 1982

Telemetry from the 4/20 0215 pass showed that the ACE reset ~6 days ago. 
The reset did not put the spacecraft in Contingency State. 
The contact was extended 35 minutes to verify completion of the inertial maneuver commands
The spacecraft BUS and re-pointing maneuver was nominal.

Walker was present during the contact and will give a full report on ACE procedure & telemetry observed. 
The ISOC will review the quicklook payload data to give a status on the data taken from the orbit and 
determine if de-spinning due to default CEU spin rate is needed.

Date
	Wednesday, April 20, 2011
Jday	Time	Station	Controller	CAR1	CAR2	CAR3	Razor#	USNPR#	Radius 	S-Band Rate
110 	0215	USAK	SWesley	    452	    455	    454	                10 desc	  64ksps
VC 0	VC 0 Seq Err	VC 1	VC 1 Seq Err	VC 2	VC 2 Seq Err 	PASS/FAIL
1973	      2		                                                       Pass
VC 2 Write Pointer Start	38132	VC 2 Write Pointer End	38503
VC 2 Read Pointer 	20480	VC 2 Read Pointer End	20480
Orbit# 121 Tracking Contact
CAR# 452  Upload Orbit# 122 ATS  1.IBEX_2011_110_00_00_v002.scr (858-914)
CAR# 455 Download Star Tracker Image 1. at AHW_ReadSttlmAttitude/@AKT_ReadAkrTm/@AHW_ReadSttlmHk/@AHW_ReadSttlmFailure
2.ops_acs_tracker_image.scr (JPEG)
3.run ops_acs_tracker_check_time.scr/run ops_acs_tracker_check_hk.scr/run ops_acs_tracker_centroids.scr
run ops_acs_tracker_params_dump.scr/@AKT_WriteTlmDest 0,0  (restores normal telemetry)
4. at AHW_ReadSttlmAttitude/@AKT_ReadAkrTm/@AHW_ReadSttlmHk/@AHW_ReadSttlmFailure
CAR# 454  Upload Orbit# 123 ATS  1.IBEX_2011_118_00_00_v001.scr (916-966)
@0213 ebno=8.0 - 10.0 dbm (64ksps)
@0321 ebno=9.5 - 11.0 dbm (64ksps) 
@ECT_SetRelay stx, off 2011/04:20:03:30:00 (915)
Blind_acq.scr (64ksps)
reset_master_timer.scr
Stx_off.scr

Date
	Wednesday, April 20, 2011
Jday	Time	Station	Controller	CAR1	CAR2	CAR3	Razor#	USNPR#	Radius 	S-Band Rate
110 	0800	USHI02	SWesley	                                            Perigee	   320ksps
VC 0	VC 0 Seq Err	VC 1	VC 1 Seq Err	VC 2	VC 2 Seq Err 	PASS/FAIL
1158	     1		                            18439	      0	            Pass
VC 2 Write Pointer Start	38917	VC 2 Write Pointer End	38973
VC 2 Read Pointer 	20480	VC 2 Read Pointer End	38919
Orbit# 121 HAW02 SSR_Dump Calibration Contact
SSR_Dump.scr (new)
ops_set_sc_time.scr
@0800 ebno=15.60 - 16.50 dbm (320ksps)
@0802 ebno=14.50 - 15.50 dbm (320ksps)
Autotrack

IBEX Orbit# 121 Target Vectors
J2000	Spin Axis
ECI X=0.861369
ECI Y=0.461585
ECI Z=0.212094

-0.27524400=ActNor.EstInrToBdy[0]
0.56408700=ActNor.EstInrToBdy[1]
0.02955600=ActNor.EstInrToBdy[2]
0.77792900=ActNor.EstInrToBdy[3]
987305000.000=ActNor.EstTime

Precession Maneuver	
MPS Diff=0.630	deg
*MPS Diff should be < 1.5*

IBEX Spin Zxis (+Z S/C)		
Right Ascension - RA=28.186	deg
Declination - DEC=12.245	deg

IBEX Spin Axis vs. Sun Vector		
IBEX Sun Angle=1.017	deg

IBEX Orbit# 121 MPS Generated Target Vectors
MPS Cmd Vector X=0.860762965
MPS Cmd Vector Y=0.466980943
MPS Cmd Vector Z=0.202523864

2011:110:02:15:57
CSS Angle TLM=3.54922
CSS Sun-Pointing Angle=7.09844

2011:110:03:22:35
CSS Angle TLM=0.688986
CSS Sun-Pointing Angle=1.377972

Pre-Burn	2011:110:02:15:57
Thruster 1=0
Thruster 2=0
Thruster 3=0
Thruster 4=0
Post-Burn  2011:110:03:22:35
Thruster 1=432
Thruster 2=432
Thruster 3=448
Thruster 4=448
Number of Pulses	
Thruster 1=432
Thruster 2=432
Thruster 3=448
Thruster 4=448
Thruster Pairs	
Thruster 1 & 2=864
Thruster 3 & 4=896