History of Observing Log/2011-04-30 (No. 3)

• History
• View the source.
• Observing Log/2011-04-30 has been deleted.
  • 1 (2011-04-29 (Fri) 22:02:55)
  • 2 (2011-04-30 (Sat) 00:50:25)
  • 3 (2011-04-30 (Sat) 03:52:33)
  • 4 (2011-04-30 (Sat) 08:03:08)
  • 5 (2011-04-30 (Sat) 14:37:13)

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• Contents
  • Observing Plan
  • Observing Log
    • Health check
    • Focus measurements
    • Health Check
    • Pointing Measurements
  • Results
    • Focus Measurements
      • Summary
      • dX vs. Ta*(peak)
      • dY vs. Ta*(peak)
    • Pointing
      • Summary
      • time vs. offset
      • dEL vs. EL
      • dEL vs. AZ
      • dAZ vs. EL
      • AZ vs. dAZ

---

Observing Plan†

• Site: NRO
• Observer(s): Y.Tamura
  • Skype: yoichi.tamura
  • Phone: 0267 98 4307

Observing Log†

Health check†

• 22:00 UTC - raster scanning Saturn. (5'x5')
  • obstable: str5c3.start
  • (AZ,EL)=(+85, 17)
  • (X,Y,Z)=(+6.47,-2.53,-3.50)
  • (dAZ,dEL;dX,dY,dZ)=(0,0; 0,0,0)
  • Conditions (envmon):

     Temp. :  -2.40 C   Humid. : 19.07 % (  0.98 hPa )   Solar :  0.00 kW/m2
     Wind  :   7.47 m/s  251 deg   AirPressure : 569.26 hPa    ( Rain:  0.01 )
     Opacity @220 GHz :   0.0398

  • Tsys = 422 K # somewhat high. probable due to large airmass (low EL).

• Emission is clearly seen. Welcome back!

#ref(): File not found: "20110430a.png" at page "Observing Log/2011-04-30"

• Saturn 5'x5' image. The peak intensity is Ta* = 40.17 K, which is consistent with the expected number.

          Centre-x      Centre-y     FWHM |       Peak       Sum      Flux   Mag
  Pixel:   14.70         15.25       2.48 |Raw:     -     249          -    24.01
          AZ---TAN:    EL---TAN:          |Adj:     -     201.6        -    24.24
  World:  -0.000832342 0.000682072        |Fit: 40.17     280.6        -    23.88
  Npoints: 113  Baselevel for adjustment: 0.418914  Units: UNIT

• 22:23 UTC - raster scanning Saturn. (2'x2')
  • obstable: str2c3.start
  • (AZ,EL)=(+83, 23)
  • (X,Y,Z)=(+6.59,-2.53,-3.36)
  • (dAZ,dEL;dX,dY,dZ)=(0,0; 0,0,0)
  • Conditions (envmon):

     Temp. :  -3.01 C   Humid. : 24.34 % (  1.19 hPa )   Solar :  0.00 kW/m2
     Wind  :   7.94 m/s  245 deg   AirPressure : 569.30 hPa    ( Rain:  0.01 )
     Opacity @220 GHz :   0.0456

  • Tsys = 359 K # somewhat high. probable due to large airmass (low EL).

• Emission is clearly seen. Welcome back!

#ref(): File not found: "20110430b.png" at page "Observing Log/2011-04-30"

• Saturn 2'x2' image. The peak intensity is Ta* = 35.5 K, again consistent with the expected number.

          Centre-x      Centre-y     FWHM |       Peak       Sum      Flux   Mag
  Pixel:   5.44          6.21        2.43 |Raw:     -     240.7        -    24.05
          AZ---TAN:    EL---TAN:          |Adj:     -     246.3        -    24.02
  World:  -0.00155622  0.000574926        |Fit: 35.5      238.2        -    24.06
  Npoints: 50  Baselevel for adjustment: -0.112365  Units: UNIT

Focus measurements†

• 22:36 UTC - start an auto-pointing daemon.

• 22:39 UTC - initial pointing.
  • Obstable: aste11/sbrf11/stsbc3a.start
  • Conditions:

     Temp. :  -3.11 C   Humid. : 25.97 % (  1.26 hPa )   Solar :  0.00 kW/m2
     Wind  :  10.16 m/s  244 deg   AirPressure : 569.32 hPa    ( Rain:  0.01 )
     Opacity @220 GHz :   0.0618

• AUTOPOINTING DOES NOT SEEM TO WORK CORRECTLY! Quiting...

• 22:45 UTC - initial pointing (again...)
  • Obstable: aste11/sbrf11/stsbc3a.start

• AUTOPOINTING DOES NOT SEEM TO WORK CORRECTLY! Quiting...
• Oops... Autopd has been quenched. Restarting...

• 22:51 UTC - initial pointing (again...)
  • Obstable: aste11/sbrf11/stsbc3a.start

• 22:58 UTC
  • autopd couldn't access shared memory?? Restarting autopd.
  • Hmm... Still does not work. The pointing offset is small anyway. I'll move on to subref measurement.

• 23:13 UTC - start subref measurement.
  • Obstable: stsbc3.list (batch mode)
  • (AZ,EL)=(+77, 34)
  • (X,Y,Z)=(+6.15,-2.53,-3.10) # values when running stsbc3a.start
  • (dAZ,dEL;dX,dY,dZ)=(0,0; 0,0,0)
  • Conditions (envmon):

     Temp. :  -3.75 C   Humid. : 28.06 % (  1.30 hPa )   Solar :  0.00 kW/m2
     Wind  :   7.90 m/s  251 deg   AirPressure : 569.34 hPa    ( Rain:  0.01 )
     Opacity @220 GHz :   0.0843

• 23:24 UTC - Observation abruptly stopped due to connection error!

• 23:30 UTC - Restarting the measurements (from stsbc3b.start)

• 00:35 UTC - Stop.
  • One set of measurements (satzc3, stsbc3a, ..., stsbc3i, stsbc3a) is completed.

Health Check†

• 01:16 UTC - Raster scanning Saturn. (2'x2')
  • obstable: str2c3.start
  • (AZ,EL)=(+50, 60)
  • (X,Y,Z)=(+4.58,-2.53,-2.66)
  • (dAZ,dEL;dX,dY,dZ)=(0,0; 0,0,0)
  • Conditions (envmon):
  • Tsys = 183 K

• 01:36 UTC - stop.

Pointing Measurements†

• 01:40 UTC - preparation for pointing measurements.

• 01:47 UTC - Start pointing measurement.
  • Obstable: istpon.list (batch mode)
  • (AZ,EL)=(+36, 65)
  • (X,Y,Z)=(+4.20,-2.53,-2.60)
  • (dAZ,dEL;dX,dY,dZ)=(0,0; 0,0,0)
  • Conditions:

     Temp. :  -7.33 C   Humid. : 32.99 % (  1.16 hPa )   Solar :  0.00 kW/m2
     Wind  :   7.46 m/s  260 deg   AirPressure : 569.34 hPa    ( Rain:  0.01 )
     Opacity @220 GHz :      ---

• 03:04 UTC - Stop.
  • (AZ,EL)=(-11, 69)
  • (X,Y,Z)=(+3.89,-2.53,-2.56)
  • (dAZ,dEL;dX,dY,dZ)=(0,0; 0,0,0)
  • Conditions:

     Temp. :  -7.05 C   Humid. : 30.58 % (  1.10 hPa )   Solar :  0.00 kW/m2
     Wind  :   7.36 m/s  265 deg   AirPressure : 569.03 hPa    ( Rain:  0.01 )
     Opacity @220 GHz :   0.0394

Results†

Focus Measurements†

Summary†

• Optimal positions (X**, Y*, Z*)
  • X** = -0.039034 +/- 0.031910 [mm]
  • Y* = +0.022476 +/- 0.026023 [mm]
  • Z* = +0.065467 +/- 0.005528 [mm]

• Values from C10430.sbrf[x2|y2|z]

  Z* : 2011 04 29 23 13 00   76.835400 34.054140  620.497   0.065467  1.469545    4.978   0.005528  0.014742
                                                       ^^^^^^^^                      ^^^^^^^^
  X**: 2001 04 29 23 43 00  -999. 40.217181  -999. -0.039034 -999. -999. 0.031910 -999.
  Y* : 2001 04 30 00 15 00  -999. 47.343558  -999.  0.022476 -999. -999. 0.026023 -999.
                                                   ^^^^^^^^^             ^^^^^^^^

dX vs. Ta*(peak)†

#ref(): File not found: "C10430.sbrfx_0.png" at page "Observing Log/2011-04-30"

dY vs. Ta*(peak)†

#ref(): File not found: "C10430.sbrfy_0.png" at page "Observing Log/2011-04-30"

Pointing†

Summary†

time vs. offset†

#ref(): File not found: "C10430.png" at page "Observing Log/2011-04-30"

dEL vs. EL†

#ref(): File not found: "C10430_C10430.r2o.dazdel.dELvsEL.png" at page "Observing Log/2011-04-30"

dEL vs. AZ†

#ref(): File not found: "C10430_C10430.r2o.dazdel.dELvsAZ.png" at page "Observing Log/2011-04-30"

dAZ vs. EL†

#ref(): File not found: "C10430_C10430.r2o.dazdel.dAZvsEL.png" at page "Observing Log/2011-04-30"

AZ vs. dAZ†

#ref(): File not found: "C10430_C10430.r2o.dazdel.dAZvsAZ.png" at page "Observing Log/2011-04-30"