[Isocops] IBEX Goat Herder 24 Mar 11

[Ibex Mission Operations]

IBEX Goat Herder  Orbit# 117 (13 Mar - 23 Mar 11)
Successful Sun Precession Maneuver for Orbit# 117

2 out of 5 failed USN contacts this Orbit
1. USN/HAW01 20 Mar 11 @ 1700 UTC Late AOS
Late AOS due to 7 degree antenna masking
USN/PR#9993
RAZOR# 449

2. USN/HAW01 21 Mar 11 @ 1710 UTC Intermittent Data
Unable to maintain data lock
USN/PR# 1000
RAZOR# 450

-- 
Sheral R. Wesley
SPVR., Satellite Operations
IBEX Mission OPS
(304) 279-6678
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IBEX Goat Herder  Orbit# 117 (13 Mar - 23 Mar 11)
Successful Sun Precession Maneuver for Orbit# 117

2 out of 5 failed USN contacts this Orbit
1. USN/HAW01 20 Mar 11 @ 1700 UTC Late AOS
Late AOS due to 7 degree antenna masking
USN/PR#9993
RAZOR# 449

2. USN/HAW01 21 Mar 11 @ 1710 UTC Intermittent Data
Unable to maintain data lock 
USN/PR# 1000
RAZOR# 450

Date
	Sunday, March 20, 2011
Jday	Time 	Station	Controller	CAR1	CAR2	CAR3	Razor	USNPR	Radius 	S-Band Rate
079	    0530	USAK	SWesley	    449	                                    14 desc	   2ksps
VC 0	VC 0 Seq Err	VC 1	VC 1 Seq 	VC 2	VC 2 Seq Err 	PASS/FAIL
386	         64	         878	295	                             	  Pass
VC 2 Write Pointer 	0	VC 2 Write Pointer End	0
VC 2 Read Pointer 	0	VC 2 Read Pointer 	0
CAR 449 Upload orbit #119 ATS 
IBEX_2011_086_00_00_v001.scr (242 - 352)
@2K eb/no = 18.93 - 21.82
@40 k eb/no = 5.08 - 7.91
@64k eb/no 4.62 - 6.14
@160 eb/no no lock
Commanded D/L to 64k dumped backorbit data

 
Date
	Sunday, March 20, 2011
Jday	Time 	Station	Controller	CAR1	CAR2	CAR3	Razor	USNPR	Radius 	S-Band Rate
079	    1700	USHI01	SWesley	                             449	9993	6 asc	160ksps
VC 0	VC 0 Seq Err	VC 1	VC 1 Seq 	VC 2	VC 2 Seq Err 	PASS/FAIL
1414	       3	                    	17647	      0	          Fail
VC 2 Write Pointer 	0	VC 2 Write Pointer End	0
VC 2 Read Pointer 	0	VC 2 Read Pointer 	0
Late acq due to antenna masking. AOS @7 deg intermittant data. USN repointed the antenna to acquire. 
EB/No 9.5 - 10.5
Eb/No 12.35 - 11.16
Eb/No 11.45 - 9.45
SSR Dump
	
 
Date
	Monday, March 21, 2011
Jday	Time 	Station	Controller	CAR1	CAR2	CAR3	Razor	USNPR	Radius 	S-Band Rate
080	    1710	USHI01	TPerry	                             450	10000	29 asc	   2ksps
VC 0	VC 0 Seq Err	VC 1	VC 1 Seq 	VC 2	VC 2 Seq Err 	PASS/FAIL
64	        31		                                                   Fail
VC 2 Write Pointer 	0	VC 2 Write Pointer End	33436
VC 2 Read Pointer 	0	VC 2 Read Pointer 	30594
Support Failed due to failure to lock on data. 
EB/NO: 2 - 14 @1710
EB/NO: 1 - 17 @1715
EB/NO: 1 - 12 @1732
Sun precession maneuver was nominal. 
CSS Angle TLM	 3.844	
CSS Sun-Pointing Angle	7.688
		3/20/2011 18:01
CSS Angle TLM	1.17	
CSS Sun-Pointing Angle	2.34	
		3/21/2011 19:22
Pre-Burn	 	
Thruster 1	23152	3/20/2011 18:01
Thruster 2	22880	
Thruster 3	23808	
Thruster 4	24080	
Post-Burn		3/21/2011 19:22
Thruster 1	23536	
Thruster 2	23232	
Thruster 3	24160	
Thruster 4	24464	
Number of Pulses		
Thruster 1	384	
Thruster 2	352	
Thruster 3	352	
Thruster 4	384	
Thruster Pairs		
Thruster 1 & 2	736	
Thruster 3 & 4	736
	
 
Date
	Wednesday, March 23, 
Jday	Time 	Station	Controller	CAR1	CAR2	CAR3	Razor	USNPR	Radius 	S-Band Rate
082	    1455	USHI01	SWesley	    377	                                     40 asc	     2ksps
VC 0	VC 0 Seq Err	VC 1	VC 1 Seq 	VC 2	VC 2 Seq Err 	PASS/FAIL
216	         2	                                                    	Pass
VC 2 Write Pointer 	38189	VC 2 Write Pointer End	38252
VC 2 Read Pointer 	30594	VC 2 Read Pointer 	30594
IBEX Orbit# 117  Sun Precession Maneuver/Star Tracker contact
1. CAR# 377 1. at ACT_SetStaticzRate (estimator,0.418)
@FMISetDownlink (40ksps)
@FMI_SetDownlink (2ksps)

Start Tracker 93% - 98% valid during the contact
@1454 ebno=11.98 - 15.54 dbm (2ksps)
@1521 ebno=11.83 - 16.02 dbm (2ksps)
@1522 ebno= No Lock (40ksps)

IBEX Orbit # 117 J2000 Target Vectors 23 Mar 11 @15:39:46 UTC
J2000	 Spin Axis
ECI X	=0.999627
ECI Y=	-0.026303
ECI Z=0.007289

0.68086000=ActNor.EstInrToBdy[0]
0.18106800=ActNor.EstInrToBdy[1]
0.68080600=ActNor.EstInrToBdy[2]
0.20037000=ActNor.EstInrToBdy[3]
984930000.000=ActNor.EstTime

IBEX Spin Zxis (+Z S/C)		
Right Ascension - RA=358.493 deg
Declination - DEC=0.418	deg
		
IBEX Spin Axis vs. Sun Vector		
IBEX Sun Angle=-3.989 deg