an69fix light curve


This light curve is the ``fixed'' version of an-0069, the first run of XCov16, taken by Atsuko Nitta at CTIO. Near the end of the night, and while still taking data, she noticed her quilt9 clock was 39 minutes slow compared to her GPS clock; the seconds were exactly syncronized between quilt9 and GPS, however. Our current assumption at HQ (arrived at in consultation with Atsuko) is that the q9 clock was somehow changed prior to run start by this exact amount. We have therefore added 39 minutes to the run start time to produce the file an69fix, which in reduced form is shown here. Combining this run with the second night (an-0070) does not seem to lead to any irregularities in the Fourier transform (but we wait for more data to perform more sensitive tests of our assumption), but until we have an ephemeris from bulk of the campaign with which to compare the timing on this run, we will not include it in the grand FT.






an69fix:


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Last updated on 20 April 1998.