Tests Using Science Projects

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Tests Using Science Projects

The EOP problem was first noticed as a big offset between the EOP used on the correlator and IERS final values by Mark Reid of SAO while analyzing his science data. One of his observations, processed with poor EOP shortly before the problem was found, was reprocessed with rapid service values afterward. In this case, the EOP errors were $\sim$0.7 msec, the delay corrections made by CLCOR were $\sim$0.5 ns, and the differences between recorrelated and corrected data were $\sim$2 ps.

In addition, we made observations to check the correction, and for the rest of this memo, we concentrate on the targeted test rather than Reid's observation.

Other observations from the archive were selected and processed through CLCOR to test CLCOR's ability to determine correctly the time intervals over which a each set of EOP values was used in cases when there are multiple sets and the new type of CT table was not used. The tests were successful, but not reported here in detail.


Craig Walker 2005-10-06

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