[[Commissioning and Science Verification]]

* Optical Pointing > Measurement [#td4a41ba]

:Revision history|
-- 2016-08-04 - modified for Linux COSMOS3 by Kamazaki,T.

:Table of contents|
#contents

----

** Preparations [#r9b5c6dc]
- &color(red){''antstat'' is unnecessary any more};
-- iOPT_r17shm communicates with COSMOS3 through shared memories and NOT files created by antstat.

*** 1. ''Aspirin'' is running on aste-1c [#ze243485]
- Aspirin's running can be confirmed by looking at the Aspirin Monitor window. Check the following three items.
 Current time = 2015/04/06 01:22:06    <--- The differences among these three times
 Aspirin time = 2015/04/06 01:22:04    <--- should be less than 60 seconds.
 Weather time = 2015/04/06 01:22:01    <---
 Aspirin Offset : (Az, El) = (   8.65,   4.62 )
 Aspirin status : OK ( C22:on  C6:OFF WIND:OFF)    <--- should be "OK" and not "WIND_ON"
 Refraction Corr. status : OK                      <--- should be "OK"

*** 2. (dAz, dEL) is (0.0, 0.0) [#he475ca7]
- Confirm that dAz and dEl are 0.0s in the AZEL offset window.
-- If they have some offsets, set ddAz and/or ddEL so that they become 0.0 in the AZEL offset window.

*** 3. OPT image [#d2125685]
- Check OPT images following the instructions in [[CSV/Optical pointing/Optical telescope setup/Focus adjustment>CSV/OpticalPointingOPTSetup#y0313ac6]]

*** 4. Start iOPT on aste-c1c [#p1c121e4]
- iOPT calculates pointing offsets from optical images and records their results to files.
- Login to aste-c1c
 > ssh astecntl@aste-c1c
- Confirm that no iOPT is running on aste-c1c
 astecntl@aste-cabin1c: ps -ef | grep iOPT | grep -v grep
 If nothing is displayed, go to the next step. If iOPT_r17shm exists, kill it.
 astecntl  4846  4806 38 23:57:49 pts/0    8:38 /cosmos3/naoj/sbinSol/iOPT_r17shm
 astecntl@aste-cabin1c: kill 4846
- Run iOPT in the directory of ~astecntl/optpon
 astecntl@aste-cabin1c: cd ~/optpon
 astecntl@aste-cabin1c: pwd
 /home/astecntl/optpon
 astecntl@aste-cabin1c: /cosmos3/naoj/sbinSol/iOPT_r17shm
- Confirm "Antenna not ready" messages
 天体に向くと毎秒10-15の測定値が流れる。
 optonのdirectoryにyyyymmddhhmm.tabというlogging fileが生成される。
 強制終了(CNTL&C)されるまで走っている。COSMOSで指示書を変えても同じlogging fileにデータが取得されるため、別のlogging fileにしたい場合は、一度強制終了して再度起動させる。

** Measurements [#la55ac42]

*** 1. Start measurements [#pd393280]
- Start an observation table 
 Group:   asteXX
 Project: optXX
 ObsTable: select an observation table close to starting LST
           (e.g. L14h30m.start at LST14:40)
-- Observation tables shall be updated every year so as to take account of proper motions of stars.
-- An execution roughly runs for about 80 minutes.
-- 測定の視野は+-10秒角である (10.5秒とかの数値を表示したら、星像が視野の淵にいる。)星が全く見えない場合、星を長時間trackingする指示書を流して全視野撮像する(5へ)
- Check pointing results flow while the antenna is tracking a star
 ...
 0811 07:34:05 225+24B        70.9   75.1  -25.9    6.1  -26.408 37.211    0.0   -0.4      7      1      2   -0.2    0.3 
 0811 07:34:05 225+24B        70.3   88.7  -19.3    5.5  -26.408 37.211   -1.2    0.2      8      1      3   -0.5    0.3 
 ...
 (1)  (2)
 (1): date
 (2): time

** Trouble Shooting [#v8d40608]
- Cannot login to aste-c1c
-- Visit [[Trouble Shooting]].

// End of the page


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