69D0435A.html |
RA Range: ToO
Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 2.0 3THN 3.0 1.0 20
| 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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This is a ToO LSS programme. It aims at taking advantage of the caustic effect to spatially resolve the disk of the source star, allowing the users to investigate in a unique way the variations of the source star atmospheric properties while the caustic lines sweep across the disk. The caustic crossing alerts will be provided by the microlensing searching teams. They are usually announced a few days before the events, with a precision of about one hour. Their duration ranges from a few hours (fast) to a few days (slow). For this reason the users have supplied three sets of OBs, which they call Slow, Fast and Peak. The latter indicates the case of a bright smooth peak. The users will communicate the proper strategy to be followed at trigger time. The users have also submitted two additional OBs, one to obtain the spectrum of the target before the caustic crossing (TOO-A) and the other for a spectrophotometric STD star.
README of this run: