Subtracted 231 counts from freq synthesiser to correct maser rate (fast) of 20 nanoseconds per day. Performed at163/0014. New synthesiser value is 55592 E-15.

Added 1041 counts to freq synthesiser to correct maser rate (slow) of 90 nanoseconds per day following cavity tune. Synthesiser adjustment performed at 155/1315 UT. The new value is 55823. The maser now leads GPS by 10.33 microseconds.

On 4/06/2011 11:23 AM, Brett Reid wrote:
Yg Maser cavity tuning complete and turned off at 155/0045 today. Frequency should be stable. We will monitor the new rate over the next few days to see if a synthesiser change is required to level the new rate.
Regards,
Brett.