17:00 UT - Before observation checklist delays were stated at the wrong time, should have been 16:45UT (Tiege)
17:00 UT - Experiment started OK (Tiege)
17:01 UT - Delay difference shifted from ~0.3 microseconds to ~0.619 however it seems stable at this delay difference. (Tiege)
17:25 UT - Delay continued to drift, halted schedule, Reset the DBBC, restarted observations, missed scans 026-1715b & 026-1721, prior scans likely unreliable. (Tiege)
17:39 UT - Drifting happened again, not stabilising after 10+mins, halt schedule and rebooted DBBC, reconfigured and restarted schedule. Missed scans 026-1735b and 026-1738 (Tiege)
18:07 UT - Yet again drifting occuring badly, tried doing a hard reboot of the DBBC using the ipswitch, currently monitoring, appears to be still drifting. missed 026-1808b through to 026-1822a (Tiege)
18:43 UT - Called Warren (on-call) as delay was still consistently drifting, setup Kathernine again from scratch, reset field system, mk5, dbbc etc. restarted schedule at 19:00 UT, still appears to be drifting, Warren directed me to leave it until the morning. Scans missed 026-1843c through to 026-1854b (Tiege)
2210-2229 UT - No data recorded while adjusting maser settings. Modulation turned off & no further clock jumps/slips noted. (JMc)