DV20 Pointing System Issues and Tracking


TIP Last Update: JeffMangum - 13 February 2012

Issues Tracked

  • VERTEX-623: NA Antenna Antenna Acceptance Tests -- Antenna 9020 (DV20) Acceptance Tests -- Pointing
    • Acceptance testing.

-- JeffMangum - 2012-02-13

Test Matrix Progress Tracking

Tracking Performance

(todo - todo done - done )

 +
State Item Comment  
15 Minute Tracking Test
 
  
  

All-Sky Pointing

(todo - todo done - done )

 +
State Item Comment  
Day 1
Completed 2012-03-17
  +  
Day 2
Completed 2012-03-18
  +  
Day 3
Completed 2012-03-19
  +  
Day 4
Completed 2012-03-20
  +  
Day 5
Completed 2012-03-21 (no data)
  +  
Day 6
Completed 2012-03-22
  +  
Day 7
Completed 2012-03-23
  +  
Day 8
Completed 2012-03-24 (no data)
  +  
Day 9
Completed 2012-03-25
  +  
Day 10
Completed 2012-03-26
  +  
Day 11
Completed 2012-03-27
  +  
Day 12
Completed 2012-03-28
  +  
Day 13
Completed 2012-03-29 (no data)
  +  
Day 14
Completed 2012-03-30
  
  

Offset Pointing

(todo - todo done - done )

 +
State Item Comment  
(Az,El) = (0,30)
Completed 2012-03-22 at (4,31)
  +  
(Az,El) = (0,45)
Completed 2012-04-03 at (343,45)
Completed again 2012-04-03 at (339,44)
  +  
(Az,El) = (0,60)
Completed 2012-04-01 at (15,65)
Completed again 2012-04-01 at (8,65)
  +  
(Az,El) = (0,75)
Completed 2012-03-26 at (27,78)
  +  
(Az,El) = (60,30)
Attempted 2012-04-02 at (36,36); (Az,El) drift +-(0.5,1.0) arcsec.
Completed 2012-04-03 at (78,32)
Attempted again 2012-04-03 at (77,36); (Az,El) drift +-(0.5,0.5) arcsec.
  +  
(Az,El) = (60,45)
Attempted 2012-04-03 at (72,42); (Az,El) drift (-1,-2.5) arcsec first 10 measurements.
Attempted again 2012-04-03 at (70,45); El drift +-1 arcsec.
Attempted again 2012-04-06 at (81,46); El drift +-0.5 arcsec.
Completed 2012-04-06 at (54,46)
  +  
(Az,El) = (60,60)
Attempted 2012-03-22 at (59,58); First 5 stars offset -0.75 arcsec in El.
Completed 2012-03-27 at (43,64)
  +  
(Az,El) = (60,75)
Completed 2012-03-26 at (40,77)
  +  
(Az,El) = (120,30)
Attempted 2012-03-27 at (138,35); Only 17 stars acquired due to cloudy conditions.
Completed 2012-04-01 at (129,34)
Completed again 2012-04-01 at (129,36)
  +  
(Az,El) = (120,45)
Completed 2012-03-23 at (122,52)
  +  
(Az,El) = (120,60)
Completed 2012-03-23 at (125,55)
  +  
(Az,El) = (120,75)
Attempted 2012-04-03 at (144,78); El drift -2 arcsec first 10 measurements.
Completed 2012-04-07 at (141,75); El offset -0.5 arcsec first 7 measurements.
Completed again 2012-04-07 at (149,75)
Completed again 2012-04-07 at (130,75)
  +  
(Az,El) = (180,30)
Attempted 2012-04-02 at (199,33); El drift +-0.5 arcsec.
Attempted 2012-04-03 at (160,36); (Az,El) drift +-(0.5,1.5) arcsec.
Attempted 2012-04-04 at (183,31); El drift +-0.5 arcsec.
Completed 2012-04-04 at (184,31)
  +  
(Az,El) = (180,45)
Completed 2012-03-27 at (177,51)
  +  
(Az,El) = (180,60)
Completed 2012-04-01 at (182,55)
  +  
(Az,El) = (180,75)
Completed 2012-04-02 at (179,70)
Completed again 2012-04-02 at (190,70)
  +  
(Az,El) = (240,30)
Completed 2012-03-22 at (241,31)
  +  
(Az,El) = (240,45)
Completed 2012-03-30 at (232,51)
Completed again 2012-03-30 at (233,45)
  +  
(Az,El) = (240,60)
Completed 2012-03-31 at (250,58)
  +  
(Az,El) = (240,75)
Completed 2012-03-31 at (248,77)
  +  
(Az,El) = (300,30)
Completed 2012-03-30 at (270,28)
  +  
(Az,El) = (300,45)
Completed 2012-03-31 at (310,37)
  +  
(Az,El) = (300,60)
Attempted 2012-03-31 at (282,66); El drift +-0.5 arcsec.
Attempted 2012-04-01 at (317,59); El drift +-1 arcsec.
Completed 2012-04-01 at (312,57)
  +  
(Az,El) = (300,75)
Attempted 2012-03-31 at (287,70); El drift +-0.5 arcsec.
Completed 2012-04-02 at (282,73)
Completed again 2012-04-02 at (279,70)
  
  

-- JeffMangum - 2011-12-15

Pointing Model Coefficients

All units arcsec.

Date Pad IA IE CA NPAE AN AW HECE HESE
15 December 2011
SEF1
-330.14
+61.28
+53.06
-23.75
+7.81
+70.74
-8.61
-38.69

Date Pad HACA HASA HACA2 HASA2 HECA2 HESA2 HECA3 HESA3 HACA3 HASA3
15 December 2011
SEF1
+1.40
-0.27
+1.13
-1.17
-0.68
-0.27
+0.68
-0.63
+0.08
-0.01

-- JeffMangum - 2012-02-13
Topic revision: r25 - 2012-04-07, JeffMangum
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