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Commissioning and Science Verification

Optical Pointing > MainRef pointing model update†

What's this page?

This page describes the way to update the pointing model of the main reflector.

Revision history

• 2010-04-13 - Updated by B. Hatsukade (astepon2010_red.txt)
• 2010-05-17 - modified for wiki by B. Hatsukade
• 2010-09-09 - modified for wiki by B. Hatsukade
• 2016-08-01 - Modified for Linux COSMOS3 by Kamazaki,T.

Table of contents

• Optical Pointing > MainRef pointing model update
  • Update procedure

Update procedure†

1. Login to aste-1c with astecntl

% ssh astecntl@aste-1c

2. Change your directory to /cosmos3/aste/etc/

astecntl@aste-1c: cd /cosmos3/aste/etc/

3. Record a file name linked from antg_main_err.dat to an observation log

astecntl@aste-1c: ls -la antg_main_err.dat
lrwxrwxrwx   1 astecntl astctl   26 Jul 6 13:25 antg_main_err.dat ->  antg_main_err.dat.20090705

4. Remove the symbolic link for antg_main_err.dat

astecntl@aste-1c: rm antg_main_err.dat

5. 器差ファイル作成

光ポインティング解析で得られた解（14パラメータ）を、今まで使っていた器差に足す。 16パラメータのうち、P9, P10は固定し、残りの14パラメータを更新。

• 器差ファイルの中身

  # main err parameter
  
  P1:(A1-F4+G1) = +0.002756
  P2:(A2+C1)    = +0.004857
  P3:A3         = +0.430331
  P4:B1         = -0.000942
  P5:B2         = -0.002129
  P6:(B3+D0+F3+G2+C2) = -0.04708
  P7:(D1-H5)    = -0.00478
  P8:(D2+H6)    = +0.00707
  P9:(D3+H7)    = +0.00111
  P10:(D4+H8)   = +0.00000
  P11:F1        = -0.000156
  P12:F2        = +0.000208
  P13:H1        = +0.000082
  P14:H2        = -0.000188
  P15: H3       = +0.000668
  P16:H4        = +0.000261

6. Create a new symbolic link from the update file to antg_main_err.dat

astecntl@aste-1c: ln -s antg_main_err.dat.20090710 antg_main_err.dat
astecntl@aste-1c: ls -l antg_main_err.dat
lrwxrwxrwx   1 astecntl astctl   12 Mar 6 04:14 antg_main_err.dat -> antg_main_err.dat.20090710