History of Observing Log/2016-08-24 (No. 3)

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Observing Log

CSV2016: Subref position offsets of DASH345 (2016-08-24)†

Tasks†

• 220GHz opacity > 0.07 -> Subref position offsets in DASH345

Preparations†

1. Basic checks
   • UT2340
   • Record which kisa files are used for DASH345 and BAND8

   aste16@aste-ms1: ssh astecntl@aste-1c "ls -l /cosmos3/aste/etc/kisag/DASH3"
   lrwxrwxrwx 1 astecntl astctl 12 Jun  1  2015 /cosmos3/aste/etc/kisag/DASH3 -> DASH3.150601

   • Check all subref parameters (dx,dy,dz,dtx,dty,dtz) are zero
     • OK
   • Check Aspirin is working in the "WIND ON" mode
     • wind off UT0002 ON
2. UT2341 Tuning at EL=60.0 deg
   • Tuning of DASH345/BAND8 for continuum observations
   • Don't forget to record weather conditions
     • OK

       ===================================ASTE Site===================================
         Temp. :  -2.48 C   Humid. : 20.07 % (  1.02 hPa )   Solar :  0.00 kW/m2
         Wind  :   4.81 m/s  265 deg   AirPressure : 573.07 hPa    ( Rain:  0.01 )
         Opacity @220 GHz :   0.1052
       ================================ Receiver Cabin ===============================
         Main Cabin:   --- C  Upper Cabin:   --- C  AzTEC AE:   --- C  Dewar:   --- C
         SCD :   ----      ----      ----      ----
       ================================Observation Room===============================
         Temp. :  23.42 degC   Humid. :  4.36 %
         Digital BE:   24.30 degC   24.20 degC   25.60 degC   25.40 degC 
         Meeting Rm.:  Temp:  room:  -----       entrance:  -----       WC:  -----
       -------------------------------Air Conditioners--------------------------------
         Internal Out     21.20 C   23.50 C   21.80 C   22.10 C   24.50 C   22.30 C
         Internal Ret.    23.00 C   24.30 C   22.20 C   -1.50 C   24.00 C   22.00 C
         External        168.60 C   -3.10 C   -0.60 C  168.60 C
       ================================Antenna Shelter================================
         Air-cond. :     8.80 degC    9.19 degC   -3.40 degC
         Room Temp.:     9.69 degC

1. Pointing toward Saturn

• UT0007

  DASH345: stx5d3.start

• ddAz, ddEl= 3.0, -3.0

1. Z-axis adjustment using Saturn

• UT0019

  DASH345: stsbd3z.start

  • Measurement and analysis for single-beam receivers
  • Add a resultant offset ddz to dz in the subref offset GUI (if |ddz| > 0.1 mm) &ref(): File not found: "ddz-201608240019.png" at page "Observing Log/2016-08-24";
  • ddz=0

Subref offset positions in DASH345/BAND8†

1. Repeat cross scans toward Saturn with various (dx,dy)
   • Repeat cross scans toward Saturn using the batch mode
   • UT0041

     DASH345: stsbd3.list

     • Don't forget to turn on auto-pointing in the QLOOKC GUI
     • OK, set average=1
2. Data reduction
   • Still under preparation

Information†

• Observers: Umemoto, Matsui
• Site: Mitaka
• Weather conditions (2016-08-24Txx:xx)

  Temperature: xxx C
  Humidity: xxx hPa
  Wind: xxx m/s (xxx deg)
  220GHz opacity: xxx

Measurement Log†