Organization

This report breaks the data into monthly sections with an overall review of the total NRAO OVLBI earth station performance at the end of the document. A table with the information for each tracking pass during the month will be presented. A discussion of the NRAO OVLBI earth station performance for that month will follow the each table.

For each month there is a table containing the information for each tracking pass during that month. The table consists of 10 columns. The first column is the ``name'' of the tracking pass. The tracking pass name has the following syntax; YYMMDDHHMM where YY is the year, MM is the month, DD is the day, HH is the hour and MM is the minute that the NRAO OVLBI earth station was scheduled to start transmitting to the satellite. The second column is the ``percentage of good data'' collecting during the tracking pass. This is defined as the total time that the data was valid between the scheduled start of the pass and the scheduled end of the pass divided by the total amount of time between the start and stop epochs of the tracking pass. It is noted that any given tracking pass cannot have 100% good data since it takes between 5 and 10 seconds to acquire a ``good lock'' with the satellite and thus declare the data as valid. The third column indicates whether the tracking pass was attended or unattended. An ``X'' indicates an unattended tracking pass. An ``*'' indicates that the tracking pass was scheduled to be unattended but Anthony Minter (AHM) or Glen Langston (GIL) checked in on the progress of the tracking pass and fixed any anomalous situation. A blank indicates that the tracking pass was attended. A ``Y'' indicates that the tracking pass was remotely attended with the operator in the Jansky Operations Center. The fourth column gives the percentage of data ``lost'' during the tracking pass due to any and all failures. The fifth column gives the percentage of data lost for the tracking pass due to hardware problems or failures. The sixth column gives the percentage of data lost for the tracking pass due to software problems or failures. The seventh column gives the percentage of data that was recovered due to the actions of the operators, GIL or AHM. The eight column indicates the percentage of data that was lost for unattended tracking passes that could have been recovered if an operator had been present during the tracking pass. The ninth column indicates whether or not the tracking pass was a recording pass by giving the experiment code. Various notes on the tracking passes are given in the tenth column. In the fourth through eighth columns the percentages are given to the nearest integer due to these values having to be estimated by AHM.