Changes between Version 95 and Version 96 of PublicPages/MayallZbandLegacy/NotesforObservers


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Timestamp:
Feb 12, 2016 2:03:33 PM (9 years ago)
Author:
Arjun Dey
Comment:

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  • PublicPages/MayallZbandLegacy/NotesforObservers

    v95 v96  
    209209= [7] Take dome flats and zeros =
    210210
     211
    211212During the afternoon (after 4pm), take dome flats with the telescope pointed at the white spot. [[BR]]
    212 1. Check that telescope is pointed to the white spot with mirror cover open [[BR]]
    213 2. Take 10 zero exposures [[BR]]
    214 3. Turn on low dome flat field lamps at 100% intensity (~50V) [[BR]]
    215 4.  Create a test script using the NGUI interface to take a 5 second exposure through the zd filter.  Run this with TEST.sh in the exec/ directory, and check that the counts you receive are ~9000 ADU in the real-time display.  If they are much higher, you will want to adjust the lamp intensity or flat field exposure time to compensate. [[BR]]
    216 5. Look for the script DFLATS_MZLS_zd.sh in the exec/ directory and run it if it exists.  Remember to hit return when it prompts you to, otherwise it will sit there idle while you read your email.  You can also create your own dome flat script using the NGUI interface. Exposure times as follows: [[BR]]
    217        z-band : 20 sec [[BR]]
    218        r-band : 25 sec [[BR]]
    219        g-band : 20 sec [[BR]]
    220 Take 11 flats in z-band every night; only take flats in other bands if you intend to use them. Counts should be ~18-20k adu.
    221 5. Take 20 zero exposures [[BR]]
    222 6. Go eat dinner [[BR]]
     213
     214Instructions for Domeflats are here: [wiki:MayallZbandLegacy/NotesforObservers/Domeflats]
     215
     216Go eat dinner [[BR]]
    223217
    224218= [8] Just before observing =
     
    348342No on-sky observations are permitted with MOSAIC3 before 10 deg twilight or after 10 deg dawn. No twilight flats are allowed.
    349343
     344Once you exit the observing script (using "touch quit" or waiting for it to end), take a zero image. This ensures that the
     345dark slide is put in place and the instrument is ready for shut down.
     346
    350347=== Shut down the software ===
    351348