267C5692B.html |
RA Range: 22:17 - 0:47 - 3:26
Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 2.0 2CLR 5.0 1.0 30
| Pre-imaging run? |
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Chilean run? |
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Special calibrations? |
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| Time critical? |
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ToO? |
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Carry-over run? |
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Fast LSS of a moving solar system target: the OBs have to be updated with the coordinates, differential tracking rates and position angle from the ephemeris attached to the README. Spectra of the fragments of Comet C/2001A2 Linear will be taken at three epochs to monitor the break-up. For every epoch (mid-June, end of June and mid-July) there are three OBs: 1: the slit passes through fragments B1 and B2; 2: the slit passes through fragments A and B1; 3: solar analogue star for calibration. The three OBs for each epoch take roughly 1 hour and should be executed in the same night (the solar analogue can be done at twilight). Each science OBs consists of 4 spectra: 2 short and 1 long on the object and one on the sky (the offset for this last one will probably cause the guide star to be lost, but it doesn't matter). The magnitude of the three targets is uncertain, but probably only the brightest one will be easily identifiable in the acquisition image.
README of this run: