History of Observing Log/2016-08-23 (No. 3)

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Observing Log

CSV2016: Subref position offsets of DASH345 (2016-08-23)†

Tasks†

• 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

   • UT0035 OK

• Check all subref parameters (dx,dy,dz,dtx,dty,dtz) are zero
  • UT0036 OK

• Check Aspirin is working in the "WIND ON" mode
  • UT0036 turned on windsw

1. Tuning at EL=60.0 deg
   • Tuning of DASH345/BAND8 for continuum observations
   • Don't forget to record weather conditions
     • UT0040

       [asteobs@aste-1c ~]$ swbox_ctl_be CONT
       [asteobs@aste-1c ~]$ swbox_ctl_be
       status: swbox_ctl_be CONT
       [asteobs@aste-1c ~]$ asterx_sw DASH345
       ### SYNTHE RF-OFF ###
       /cosmos3/naoj/bin/synthe_ctl B RF OFF
       FREQ = 14.157218444 [GHz]
       AMPL = 20.00 [dBm]
       RF   = ON
       ### After setting synthe ###
       FREQ = 14.157218444 [GHz]
       AMPL = 20.00 [dBm]
       RF   = OFF
       ### SWBOX changed ###
       /cosmos3/naoj/bin/swbox_ctl_rx 0
       ### SYNTHE set ###
       /cosmos3/naoj/bin/synthe_ctl B AMPL +20dBm
       FREQ = 14.157218444 [GHz]
       AMPL = 20.00 [dBm]
       RF   = OFF
       ### After setting synthe ###
       FREQ = 14.157218444 [GHz]
       AMPL = 20.00 [dBm]
       RF   = OFF
       /cosmos3/naoj/bin/synthe_ctl B RF ON
       FREQ = 14.157218444 [GHz]
       AMPL = 20.00 [dBm]
       RF   = OFF
       ### After setting synthe ###
       FREQ = 14.157218444 [GHz]
       AMPL = 20.00 [dBm]
       RF   = ON
       [asteobs@aste-1c ~]$ synthe_ctl B FREQ 14.375 
       FREQ = 14.157218444 [GHz]
       AMPL = 20.00 [dBm]
       RF   = ON
       ### After setting synthe ###
       FREQ = 14.375000000 [GHz]
       AMPL = 20.00 [dBm]
       RF   = ON

[asteobs@aste-1c ~]$ asterx_set DASH345
### Query of LO Freq ###
LO Freq = 345.000000000
### Set CLNA ###
/cosmos3/naoj/bin/femc_ctl DASH345 CLNA_ON 345.000000000
vd0=1.200000, id0=10.000000
vd1=0.000000, id1=0.000000
vd2=0.000000, id2=0.000000
ASTE FEMC:OPEN
FEMC_TCP 7 

Ver 0.91
> 
Program running.
Do not turn off power to CAN nodes.
---------- 45 4C 01 08 00 E1nd at Node index 00
AMBSI CAN Library V1.1.2
AMBSI Firmware V1.0.1
FEMC Firmware V2.5.0
FPGA V2.1.0
10 F2 B3 58 2 8 0 1B
1 A4 9A 4F 14 0 0 19
23 9B DE 4C 1 0 0 44
0 0 0 0 0 0 0 0
> SET_CLNA 0 1 1.20 10.00 0.00 0.00 0.00 0.00 
OK
> SET_CLNA 0 2 1.20 10.00 0.00 0.00 0.00 0.00 
OK
> SET_CLNA 1 1 1.20 10.00 0.00 0.00 0.00 0.00 
OK
> SET_CLNA 1 2 1.20 10.00 0.00 0.00 0.00 0.00 
OK
> GET_CLNA 0 1 
1.205048,10.050354,- 0.279907,0.003342,0.013885,4.910156,0.003632,0.021973,4.910110,1
> GET_CLNA 0 2 
1.204926,10.059052,-0.382919,0.003189,0.023041,- 4.848312,0.004120,0.021210,4.910080,1
> GET_CLNA 1 1 
1.205978,10.034027,-0.796585,0.003052,0.022430,-4.882156,0.003204,0.025177,- 4.881989,1
> GET_CLNA 1 2 
1.206573,10.097504,-0.303116,0.003723,0.019073,- 4.882004,0.003494,0.012817,4.931625,1
> CAN_CLOSE
CAN closed
ASTE FEMC:CLOSE
### Set SIS bias ###
/cosmos3/naoj/bin/femc_ctl DASH345 SIS_ON 345.000000000
345.000000 1.900000 1.900000 1.900000 1.900000
ASTE FEMC:OPEN
FEMC_TCP 7  

Ver 0.91
> 
Program running.
Do not turn off power to CAN nodes.
---------- 45 4C 01 08 00 E1nd at Node index 00
AMBSI CAN Library V1.1.2
AMBSI Firmware V1.0.1
FEMC Firmware V2.5.0
FPGA V2.1.0
10 F2 B3 58 2 8 0 1B
1 A4 9A 4F 14 0 0 19
23 9B DE 4C 1 0 0 44
0 0 0 0 0 0 0 0
> SET_SIS_MODE 0 
SET SIS MODE:CLOSE LOOP
> SET_SIS_V 0 1 1.900 
OK
> SET_SIS_V 0 2 1.900 
OK
> SET_SIS_V 1 1 1.900 
OK
> SET_SIS_V 1 2 1.900 
OK
> GET_SIS_VC 0 1 
1.786499,17.724609
> GET_SIS_VC 0 2 
1.788177,22.390747
> GET_SIS_VC 1 1 
1.810760,16.464233
> GET_SIS_VC 1 2 
1.818390,20.480347
> CAN_CLOSE
CAN closed
ASTE FEMC:CLOSE
### Set LO Power ###
/cosmos3/naoj/bin/loatt_dash345_tune 345.000000000
/cosmos3/naoj/bin/loatt_dash345_val /home/astedev/frontend/loatt_ctl  /loatt_dash345.conf 345.000000000
/cosmos3/naoj/bin/loatt_dash345 225 310
Set ATT     : Pol0=225, Pol1=310
Pol0 =      225   , Pol1 =      310
Pol0 = 0.005490[A], Pol1 = 0.007567[A]
Pol0 = 0.657738[V], Pol1 = 0.775202[V]

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

[asteobs@aste-1c ~]$ cont_if 2 22 
Cont IF #2 Att. = 21 [dB]
changed Cont IF #2 att. = 22 [dB]
recieved value = -2.60217000E-04 

recieved value = -2.60217000E-04
Cont IF #2 Lev. = -0.000260 [V]
[asteobs@aste-1c ~]$ cont_if 3 17 
Cont IF #3 Att. = 0 [dB]
changed Cont IF #3 att. = 0 [dB]
recieved value = -2.57465000E-04 

recieved value = -2.57465000E-04
Cont IF #3 Lev. = -0.000257 [V]

1. Pointing toward Saturn

   DASH345: stx5d3.start
   BAND8:   stx5b8.start

2. 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: Tanaka, Ashitagawa
• Site: Mitaka
• Weather conditions (2016-08-23T00:48UT)

  Temperature: -2.78 C
  Humidity: 8.21 hPa
  Wind: 4.45 m/s (198 deg)
  220GHz opacity: 0.0406

Measurement Log†

• UT0049 stx5d3 start dAz, dEl, x, y, z = 0, 0, 0, 0, 0
  • => dAz, dEl = 3, -1
• UT0056 stsbd3z start dAz, dEl, x, y, z = 3, -1, 0, 0, 0
  • => ddz = 0.022 mm

#ref(): File not found: "figure_1.png" at page "Observing Log/2016-08-23"

• UT0100 stsbd3 start dAz, dEl, x, y, z = 3, -1, 0, 0, 0

   Temp. :  -0.54 C   Humid. :  7.19 % (  0.42 hPa )   Solar :  0.00 kW/m2
   Wind  :   1.19 m/s  263 deg   AirPressure : 574.01 hPa    ( Rain:  0.01 )
   Opacity @220 GHz :   0.0085

  • Tsys = 114K!

• UT0206 stsbd3 contd.

   Temp. :  -0.98 C   Humid. :  7.15 % (  0.41 hPa )   Solar :  0.00 kW/m2
   Wind  :   3.82 m/s  212 deg   AirPressure : 574.09 hPa    ( Rain:  0.01 )
   Opacity @220 GHz :   0.0370

• strange behavior of mainref offsets.
  • too large offset values at strange(?) timing:

    20160823020729 Auto 0.000000 -0.300000 1.600000 0.400000    <- h El
    20160823020753 Auto 0.800000 0.000000 2.400000 0.400000     <- h Az
    20160823020905 Auto 0.000000 0.300000 2.400000 0.700000     <- h El
    20160823020929 Auto 0.400000 0.000000 2.800000 0.700000     <- h Az
    20160823021605 Auto 0.000000 -26.500000 2.800000 -25.800000 <- i El *fitting error?
    20160823022129 Auto 0.000000 26.500000 2.800000 0.700000    <- a El
    20160823022153 Auto -1.300000 0.000000 1.500000 0.700000    <- a Az
    20160823022329 Auto 1.100000 0.000000 2.600000 0.700000     <- a El

• UT0319

   Temp. :  -1.87 C   Humid. : 11.20 % (  0.60 hPa )   Solar :  0.00 kW/m2
   Wind  :   3.36 m/s  273 deg   AirPressure : 574.09 hPa    ( Rain:  0.01 )
   Opacity @220 GHz :   0.0741