History of Observing Log/2016-08-19 (No. 4)

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  • 1 (2016-08-18 (Thu) 22:43:29)
  • 2 (2016-08-18 (Thu) 23:01:25)
  • 3 (2016-08-19 (Fri) 10:37:07)
  • 4 (2016-08-19 (Fri) 13:02:10)

Observing Log

CSV2016: Subref position offsets of DASH345 (2016-08-19)†

Tasks†

• 220GHz opacity <= 0.07 -> Subref position offsets in BAND8
• 220GHz opacity > 0.07 -> Subref position offsets in DASH345

Preparations†

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

   aste16@aste-ms1: ssh astecntl@aste-1c "ls -l /cosmos3/aste/etc/kisag/{DASH3,BAND8}"
   lrwxrwxrwx 1 astecntl astctl 12 Jun  3  2015 /cosmos3/aste/etc/kisag/BAND8 -> BAND8.150603
   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
   • Check Aspirin is working in the "WIND ON" mode
2. Tuning at EL=60.0 deg
   • Tuning of DASH345/BAND8 for continuum observations
   • Caution! LSB is now used in BAND8 due to [ASTE-120]
   • Don't forget to record weather conditions
3. Pointing toward Saturn

   DASH345: stx5d3.start
   BAND8:   stx5b8.start

4. Z-axis adjustment using Saturn

   DASH345: stsbd3z.start
   BAND8:   stsbb8z.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)

Subref offset positions in DASH345/BAND8†

1. Repeat cross scans toward Saturn with various (dx,dy)
   • Pointing toward Saturn (If no ddz is put in the previous step, skip this pointing)

     BAND8:   stx5b8.start
     DASH345: stx5d3.start

   • Repeat cross scans toward Saturn using the batch mode

     BAND8:   stsbb8.list
     DASH345: stsbd3.list

     • Don't forget to turn on auto-pointing in the QLOOKC GUI
2. Data reduction
   • Still under preparation

Information†

• Observers: Izumi
• Site: Mitaka
• Weather conditions (2016-08-18T23:48)

  Temperature: -2.3 C
  Humidity: 0.42 hPa
  Wind: 9.42 m/s (227 deg)
  220GHz opacity: 0.0427

Measurement Log†

Preparation†

• Aspirin time was not updated.
  • Restart COSMOS at ASTE site

    ssh -t aste-1c "sudo /cosmos3/naoj/sbin/cos3_cntl restart all"	

    EMERGENCY STOP (Forced to stop)
    Cannot connect with COSMOS Manager

  • Restart connection from remote site to ASTE site

    ssh -t aste-mt1 "sudo /cosmos3/naoj/sbin/cos3_cntl restart"

    • Repeated "Restart COSMOS at ASTE site" and "Restart connection from remote site to ASTE site" twice
  • Turn on Aspirin-blue (wind correction)

    ssh aste-1c "/cosmos3/naoj/bin/windsw on"

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

     [aste16@aste-ms1 ~]$ ssh astecntl@aste-1c "ls -l /cosmos3/aste/etc/kisag/{DASH3,BAND8}"
     lrwxrwxrwx 1 astecntl astctl 12 Jun  3  2015 /cosmos3/aste/etc/kisag/BAND8 -> BAND8.150603
     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
   • Check Aspirin is working in the "WIND ON" mode
2. Tuning at EL=60.0 deg

   ===================================ASTE Site===================================
     Temp. :  -2.67 C   Humid. :  8.27 % (  0.42 hPa )   Solar :  0.00 kW/m2
     Wind  :   8.76 m/s  220 deg   AirPressure : 571.57 hPa    ( Rain:  0.01 )
     Opacity @220 GHz :   0.0110
   ================================ Receiver Cabin ===============================
     Main Cabin:   --- C  Upper Cabin:   --- C  AzTEC AE:   --- C  Dewar:   --- C
     SCD :   ----      ----      ----      ----
   ================================Observation Room===============================
     Temp. :  23.69 degC   Humid. :  2.68 %
     Digital BE:   25.90 degC   27.80 degC   30.50 degC   29.60 degC 
     Meeting Rm.:  Temp:  room:  -----       entrance:  -----       WC:  -----
   -------------------------------Air Conditioners--------------------------------
     Internal Out     22.70 C   22.40 C   16.50 C   22.60 C   24.50 C   23.40 C
     Internal Ret.    24.40 C   24.10 C   21.70 C    0.80 C   24.20 C   23.10 C
     External        168.60 C   -3.50 C    5.80 C  168.60 C
   ================================Antenna Shelter================================
     Air-cond. :     5.80 degC    5.80 degC   -4.00 degC
     Room Temp.:     6.80 degC

   [asteobs@aste-1c ~]$ swbox_ctl_be CONT
   [asteobs@aste-1c ~]$ swbox_ctl_be
   status: swbox_ctl_be CONT

   [asteobs@aste-1c ~]$ asterx_sw BAND8 
   ---
   ### After setting synthe ###
   FREQ = 14.375000000 [GHz]
   AMPL = 13.00 [dBm]
   RF   = ON

   [asteobs@aste-1c ~]$ synthe_ctl B FREQ 11.444 
   FREQ = 14.375000000 [GHz]
   AMPL = 13.00 [dBm]
   RF   = ON
   ### After setting synthe ###
   FREQ = 11.444000000 [GHz]
   AMPL = 13.00 [dBm]
   RF   = ON

   [asteobs@aste-1c ~]$ asterx_set BAND8
   ### Query of LO Freq ###
   LO Freq = 411.984000000
   ---
   > GET_PA 0 
   2.965851,247.741699,-0.290985
   > GET_PA 1 
   4.022064,260.696411,-0.345459

   [asteobs@aste-1c ~]$ swbox_ctl_pol 0 1
   [asteobs@aste-1c ~]$ swbox_ctl_pol
   status: swbox_ctl_pol 0 1
   400:P0-USB	402:P1-USB

   [asteobs@aste-1c ~]$ cont_if 2 23
   Cont IF #2 Att. = 23 [dB]
    changed Cont IF #2 att. = 23 [dB]
   recieved value = -8.82861000E-04
   
   recieved value = -8.82861000E-04
   Cont IF #2 Lev. = -0.000883 [V]

   [asteobs@aste-1c ~]$ cont_if 3 21
   Cont IF #3 Att. = 0 [dB]
   changed Cont IF #3 att. = 0 [dB]
   recieved value = -6.13000000E-06
   
   recieved value = -6.13000000E-06
   Cont IF #3 Lev. = -0.000006 [V]

3. Pointing toward Saturn
   • Filename: stx5b8.start

     Temp. :  -3.65 C   Humid. : 10.78 % (  0.50 hPa )   Solar :  0.00 kW/m2
     Wind  :   6.74 m/s  220 deg   AirPressure : 571.70 hPa    ( Rain:  0.01 )
     Opacity @220 GHz :   0.0548

     dAz, dEl = -0.9, 0.0

   • dEl is different between CH01 and CH02

     #ref(): File not found: "Screenshot-1.png" at page "Observing Log/2016-08-19"

4. Z-axis adjustment using Saturn
   • Filename: stsbb8z.start

     #ref(): File not found: "subrefz_160819_1.png" at page "Observing Log/2016-08-19"

Subref offset positions in DASH345/BAND8 with various (dx,dy)†

Temp. :  -4.81 C   Humid. : 12.96 % (  0.55 hPa )   Solar : -0.01 kW/m2
Wind  :   3.16 m/s  300 deg   AirPressure : 571.71 hPa    ( Rain:  0.01 )
Opacity @220 GHz :   0.0437

• Repeat cross scans toward Saturn using the batch mode
  • Filename: stsbb8.list
  • UTC 00:48 Stop the observation (forget to turn on auto-pointing in the QLOOKC GUI)
    
  • UTC ~03:40 (El ~ 30 deg)
    Can not detect Saturn with CH02

    #ref(): File not found: "Screenshot-2.png" at page "Observing Log/2016-08-19"

    #ref(): File not found: "Screenshot-3.png" at page "Observing Log/2016-08-19"