DV23 Pointing System Issues and Tracking


TIP Last Update: JeffMangum - 11 July 2012

Issues Tracked

  • VERTEX-626: NA Antenna Antenna Acceptance Tests -- Antenna 9023 (DV23) Acceptance Tests -- Pointing
    • Acceptance testing.

-- JeffMangum - 2012-07-11

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 2012-07-16
  +  
Day 2
Completed 2012-07-17
  +  
Day 3
Completed 2012-07-18
  +  
Day 4
Completed 2012-07-19
  +  
Day 5
Completed 2012-07-20
  +  
Day 6
Completed 2012-07-21
  +  
Day 7
Completed 2012-07-22
  +  
Day 8
Completed 2012-07-23
  +  
Day 9
Completed 2012-07-24
  +  
Day 10
Completed 2012-07-25
  +  
Day 11
Completed 2012-07-26
  +  
Day 12
Completed 2012-07-27
  +  
Day 13
Completed 2012-07-28
  +  
Day 14
Completed 2012-07-29 (no data; clouds)
  
  

Offset Pointing

(todo - todo done - done )

 +
State Item Comment  
(Az,El) = (0,30)
Completed 2012-07-20 at (17,32); El step -1 arcsec at measurement 40.
  +  
(Az,El) = (0,45)
Completed 2012-07-20 at (355,50)
  +  
(Az,El) = (0,60)
Completed 2012-07-21 at (17,62)
  +  
(Az,El) = (0,75)
Completed 2012-07-20 at (5,70); Minor El wandering +-0.25 arcsec.
  +  
(Az,El) = (60,30)
Completed 2012-07-26 at (59,28)
  +  
(Az,El) = (60,45)
Completed 2012-07-21 at (50,50)
  +  
(Az,El) = (60,60)
Completed 2012-07-21 at (40,56)
  +  
(Az,El) = (60,75)
Completed 2012-07-24 at (71,78); Metrology stiction in Az first 20 measurements.
  +  
(Az,El) = (120,30)
Completed 2012-07-24 at (120,34)
  +  
(Az,El) = (120,45)
Completed 2012-07-22 at (142,42); Marginal El drift +-0.4 arcsec.
  +  
(Az,El) = (120,60)
Completed 2012-07-22 at (144,57)
  +  
(Az,El) = (120,75)
Completed 2012-07-24 at (148,78)
  +  
(Az,El) = (180,30)
Attempted 2012-07-19 at (173,33); Large (Az,El) drift (+-0.5,+-1.0) arcsec.
Completed 2012-07-22 at (170,32)
  +  
(Az,El) = (180,45)
Completed 2012-07-31 at (175,44)
  +  
(Az,El) = (180,60)
Attempted 2012-07-18 at (203,56); El drift +-0.5 arcsec; El step +-0.5 arcsec at measurement 15.
Completed 2012-07-21 at (189,59)
  +  
(Az,El) = (180,75)
Completed 2012-07-24 at (181,68)
  +  
(Az,El) = (240,30)
Completed 2012-08-01 at (262,22)
  +  
(Az,El) = (240,45)
Completed 2012-07-19 at (219,42)
  +  
(Az,El) = (240,60)
Completed 2012-08-01 at (255,56)
  +  
(Az,El) = (240,75)
Completed 2012-07-23 at (256,71)
  +  
(Az,El) = (300,30)
Completed 2012-07-19 at (290,29)
Completed again 2012-07-23 at (307,29)
  +  
(Az,El) = (300,45)
Attempted 2012-07-18 at (279,48); Az and El drift +-0.5 arcsec.
Completed 2012-07-20 at (324,42); Minor El drift +-0.25 arcsec.
  +  
(Az,El) = (300,60)
Completed 2012-07-18 at (284,53)
  +  
(Az,El) = (300,75)
Completed 2012-07-23 at (292,68)
  
  

-- JeffMangum - 2012-04-20

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 - 2012-07-11
Topic revision: r11 - 2012-08-01, JeffMangum
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