CB502 #2808 tar-save will be created 1999 Apr 7-8 Processing factor = 2.6 DOY 097-098 92% have FRNGE Q.F. of 5-9. DSS45: Weak fringes and phase cal in X channel 1 -- channel deleted in fringing. ~20% of scans are non-detections, presumably because antenna was off source. Antenna slew rate was slower than normal due to failure of a drive motor. X-band fringe amplitudes are 2-3 times lower than normal. Pointing problem? Phase cal was unstable in level during the first 2 hours and last 12 hours of the experiment, particularly at X, and did a poor job of aligning fringe phases during the last 12 hours. Fringed all data with manual phase cal. Kokee: Manual phase cal. Noto: Very weak fringes and phase cal in X channel 5 -- channel deleted in fringing. 2.5 hours lost due to problems with antenna power. Urumqi: Phase cal did not align fringe phases consistently from scan to scan, and S phase cal amplitude ratios between channels were unstable. All data fringed with manual phase cal. Receiver S/X LO phase was occasionally unstable, leading to a coherence loss of up to 30% for a few scans. Yebes: Both data tapes were blank because a missing entry in the PCFS equip.ctl file caused the recorder write voltage to be set to zero. QF=5-9 KC 98% C - Seshan KN 100% K - Kokee Park KU 96% N - NRAO20 SN 97% S - Noto TK 76% T - DSS45 U - Urumqi