Update UT1 - UTC dec07


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    UT1 - UTC  (DUT1) is used to convert from UTC  to UT1. This is needed for pointing the telescope.  The Earth orientation dept. of the USNO publishes the measured and predicted values for DUT1. A fit is  done to the "future"  values and then used for the pointing. It is stored in the file : /home/online/vw/etc/Pnt/utcToUt1.dat .

    The last fit was done dec06. New data was loaded 27nov07 and refit. This is after the painting project and before the new pointing model. The plots show the  Dut1 fit error from the new dec07 fit (.ps) (.pdf):

processing: x101/061207/plotdut1.pro

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