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Commissioning and Science Verification

CSV(2016)†

Revision history

• 2016-07-21 - Kamazaki,T. - created.

Table of contents

• CSV(2016)
  • General information
    • Schedule
    • Account and project
  • Cautions on operations
  • Reference sources
    • Planets
    • 12CO(J=3-2) sources
  • Basic procedures
    • Start and stop
    • Tuning of DASH345/BAND8 for continuum observations
    • Tuning of DASH345/BAND8 for line observations

General information†

Schedule†

• &ref(): File not found: "aste_csv2016_20160810.pdf" at page "CSV/2016";
• Staff schedule
• Densuke (schedule coordination) (あすてびっくりびっくりびっくり)

Account and project†

• Group: asteXX=aste16
• Project:
  • optpon : global pointing with OPT
  • opttrk : continuous tracking with OPT
  • sbrfXX=sbrf16: subref position offsets
  • calibXX=calib16: calibrator survey
• Computers

  Site	Control computer	Analysis server	Analylsis computers
  ASTE	aste-1c	aste-1s	aste-1s,aste-1x
  Mitaka	aste-mt1	aste-ms1	aste-ms1,aste-mx3

Cautions on operations†

• 連続波QLOOKは観測終了毎にSTOPに戻りますので、観測開始する毎にSTARTを押して下さい。
  • aste-mt1上の連続波QLOOKに試験的な修正を加えてSTOP時に自動的にSTARTに戻るようにしました。一度STARTさせるとSTOPできませんので、必要な場合(e.g. 連続波QLOOKの設定変更)には連続波QLOOKを一度終了して下さい。(JST2016-08-16) [ASTE-119]
• 連続波QLOOKにおいてモニターチャネルのプロットが極性反転しているのは連続波QLOOKの仕様です。
  • aste-mt1上の連続波QLOOKに試験的な修正を加えて反転しないようにし、Tsysも計算されるようにしました。(JST2016-08-16) [ASTE-119]
• DASH345の連続波データの処理にはCH1を使用して下さい。CH2において天体からの信号が検出されなくても無視して下さい。
• BAND8の連続波データの処理にはCH2を使用して下さい。CH1は信号レベルが低く、土星のS/NもCH2と比較して明らかに悪いです。(JST2016-08-16現在調査中)
• 連続波データをcontで処理する際は、cont_link.shを実行して作成されたsymbolic linkのファイル名で参照して下さい。contにはファイル名の長さが最大(20-1)文字という制限がある為です。cont_rsync.sh -linkを使用してデータ転送した場合は、自動的にsymbolic linkが作成されます。

Reference sources†

Planets†

&ref(): File not found: "azelp20160815_cont.png" at page "CSV/2016"; &ref(): File not found: "azelp20160901_cont.png" at page "CSV/2016"; &ref(): File not found: "azelp20160915_cont.png" at page "CSV/2016";

12CO(J=3-2) sources†

&ref(): File not found: "azelp20160815_12co.png" at page "CSV/2016";

Basic procedures†

Start and stop†

• Observing with ASTE (google)

Tuning of DASH345/BAND8 for continuum observations†

1. Set antenna EL angle to 60 degrees
2. Login to aste-1c with asteobs

   > ssh asteobs@aste-1c

3. Select CONT BE

   asteobs@aste-1c: swbox_ctl_be CONT           <--- CONT BE is selected
   asteobs@aste-1c: swbox_ctl_be
   status: swbox_ctl_be CONT

4. Select either of DASH345 and BAND8 and then, set the frequency of the synthesizer B
   • [DASH345]

   asteobs@aste-1c: asterx_sw DASH345           <--- DASH345 is selected

   asteobs@aste-1c: synthe_ctl B FREQ 14.375    <--- 14.375 GHz x24 = 345 GHz
   ### After setting synthe ###
   FREQ = 14.375000000 [GHz]                    <--- confirm the frequency is set
   AMPL = 20.00 [dBm]
   RF   = ON

   • [BAND8]

   asteobs@aste-1c: asterx_sw BAND8             <--- BAND8 is selected

   asteobs@aste-1c: synthe_ctl B FREQ 11.444    <--- 11.444 GHz x36 = 411.984 GHz
   ### After setting synthe ###
   FREQ = 11.444000000 [GHz]                    <--- confirm the frequency is set
   AMPL = 13.00 [dBm]
   RF   = ON

5. Tune DASH345/BAND8
   • [DASH345]

   asteobs@aste-1c: asterx_set DASH345
   ### Query of LO Freq ###
   LO Freq = 345.000000000                      <--- confirm LO freq = 345.000
   ...
   Set ATT     : Pol0=225, Pol1=310
    Pol0 =      225   , Pol1 =      310
    Pol0 = 0.005490[A], Pol1 = 0.007567[A]
    Pol0 = 0.662948[V], Pol1 = 0.778741[V]

   • If necessary, adjust ATT values with loatt_dash345.

     > loatt_dash345 -h
     usage:loatt_dash345 -p0/-p1 [val]

   • [BAND8]

   asteobs@aste-1c: asterx_set BAND8
   ### Query of LO Freq ###
   LO Freq = 411.984000000                      <--- confirm LO freq = 411.984
   ...
   > GET_PA 0 
   2.966309,247.970581,-0.290833
   > GET_PA 1 
   4.021912,265.975952,-0.346375

   • If necessary, adjust ATT values with lopwr_band8.

     > lopwr_band8 -h
     usage  : lopwr_band8 [-p0/-p1] [VD]
            : VD range = 0.600 - 2.600 [V]

6. Select a sideband (USB for the both receivers)

   asteobs@aste-1c: swbox_ctl_pol 0 1           <--- P0USB and P1USB are selected
   asteobs@aste-1c: swbox_ctl_pol
   status: swbox_ctl_pol 0 1
   400:P0-USB	402:P1-USB

7. Adjust signal levels input to DASBOX
   • DASH345

   asteobs@aste-1c: cont_if 2 22                <--- NITSUKI CH2
   ...
   Cont IF #2 Lev. = -0.000264 [V]

   asteobs@aste-1c: cont_if 3 17                <--- NITSUKI CH3
   changed Cont IF #3 att. = 0 [dB]             <--- Just ignore even if 0 [dB]
   ...
   Cont IF #3 Lev. = -0.000301 [V]

   • BAND8

   asteobs@aste-1c: cont_if 2 23                <--- NITSUKI CH2
   ...
   Cont IF #2 Lev. = -0.000316 [V]

   asteobs@aste-1c: cont_if 3 19                <--- NITSUKI CH3
   changed Cont IF #3 att. = 0 [dB]             <--- Just ignore even if 0 [dB]
   ...
   Cont IF #3 Lev. = -0.000022 [V]

Tuning of DASH345/BAND8 for line observations†

• Follow the procedures described in ASTE (google)>Observing with ASTE>Observations>Tuning