blog:20240413

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20240413

Time

1800-

Attendance

Sam, Azzan, Roy, Derek

Spaces Occupied

PHYS 401, 433C, Dome, Roof

Goals

  1. Review standard operating procedures
  2. Take calibration frames
  3. Take seeing frames
  4. Find 1 or 2 standard fields to observe

Equipment Used

Scope Camera
Main ASI 432
Finder ASI 2600

Frame Table

Time Observed Source Name Filter Int Time [s] Gain Airmass Mag (filter) RA [h] DEC [deg] Source Type Scope Purpose Notes
20240413T1930 Flats U 12×0.1397 150 N/A N/A N/A N/A Flat Main Calibration Using SC 4.1 GARB
20240413T1930 Flats B 12×0.0327 150 N/A N/A N/A N/A Flat Main Calibration Using SC 4.1 GARB
20240413T1930 Flats V 12×0.0327 150 N/A N/A N/A N/A Flat Main Calibration Using SC 4.1 GARB
20240413T1930 Flats R 12×0.0327 150 N/A N/A N/A N/A Flat Main Calibration Using SC 4.1 GARB
20240413T1930 Flats I 12×0.0676 150 N/A N/A N/A N/A Flat Main Calibration Using SC 4.1 GARB
20240413T2000 Pollux V 150 N/A N/A N/A N/A Star Main Pointing Using SC 4.1
20240413T2030 HD 70272 V 3×0.25 0 1.011 4.25 8 43 Star Main Seeing
20240413T2030 HD 44537 V 3×0.5 0 1.162 4.9 6 49 Star Main Seeing Using SC 4.1
20240413T2030 HD 31314 V 3×5 0 1.496 8.1 4 40 Star Main Seeing Using SC 4.1
20240413T2030 HD 76351 V 3×1.5 0 1.135 5.4 8 11 Star Main Seeing Using SC 4.1

Log

  1. Went through start-up procedures
  2. Moved dome so that sunlight wasn't heating-up dome
  3. Needed to reconnect data line for finder scope cam (ASI 2600)
  4. Took flat frames with sky at 1930, scope at zenith
    1. Unsure if 432 is north-aligned, OH WELL
    2. Forgot to record exposure times – will do this before taking darks, obv
  5. Finderscope camera disconnected (using SC 4.1)
    1. Azzan and Sam went up to reseat the data cable into the Icron
    2. The 2600 worked again, but then disconnected after maybe 60s
    3. Azzan and Sam then moved the 2600 data cable to LBD-2
    4. Seems to be working – FOR NOW
  6. Moved to Pollux for pointing – it was near zenith
  7. Dome tracking is working
  8. Pointing was off
    1. Got some starfield from the finderscope and uploaded to Astrometry.net (thanks to Connor for having an acct)
    2. Waited a few mins for astrometry.net to work
    3. Used the supplied RA and DEC to update the telescope position in DFM TCS
  9. Seems like focus might be off
  10. Went to HD 70272 to see if we can make things better
    1. Started at focus 1919.1
    2. Optimal focus is 1913.0
    3. FLATS ARE GARBAGE
    4. DELETING
  11. We Slew to HD 76351 the pointing seem to be off but we re-slew and it fixed the problem ( this is not expected)

ToDo

Seeing Targets:

- HD 70272, HD 44537, HD 31314, HD 76351

Notes

  1. Data cable for 2600 was disconnected – we reconnected to Icron
  2. Need to buy new casters for rolly ladder
  3. Need to get Azzan and Sam on Gold Card roof swipe access list
  4. Need to finish set
  5. 2600 seems to randomly disconnect
    1. Seems to be better behaved on LBD-2 for now?
    2. This needs to be investigated

Weather

Time Dome Temp Outside Temp Outside Humid
1915 18 20 23
2100

Data

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