IVS-R1161 / R1161 2005 February 07-08 038/17:00 - 039/17:00 Haystack correlator expt #3090 Fourfit quality code summary: 80% 7-9 3% 1-6,A-H 8% 0 (non-detection) 10% no data Gilcreek (A/Gc): Rubidium standard used in place of maser due to instability problem with maser. Integer-second formatter clock jumps at 038-2202, 039-0154, and 039-0413 (last one occurred when clock was resynchronized to UTC). Problems with antenna tracking during most of session. 74 scans during which the antenna was definitely off source were not correlated. Large number of non-detections, particularly at X-band, due to inclusion in processing list of scans suspected, but not known definitely, to have been observed off source. Highly variable X-band fringe amplitudes in some scans due to mispointing by varying amounts. Overwriting on first pass of first and third tapes caused significant data loss in many scans, including some S-band scans with no data and numerous fourfit error codes (B, D, E, and H) on the first tape. HartRAO (J/Hh): Recorded on Mark 5A. Hobart (H/Ho): Fringed with manual phases due to presence of strong spurious signals in several S- and X-band channels. 43 scans missed while attempts were made to repair an intermittent problem with X-axis antenna drive. During some other parts of the session, X-band fringe amplitude is reduced due to pointing oscillations of <0.2 degree. Recorded on Mark 5A. Kokee (K/Kk): Fringed with manual phases. Scheduled outage for Intensive from 038-1802 to 038-1959. Recorded on Mark 5A. Westford (E/Wf): ~8% of S-band scans are G or H codes due to RFI from digital audio satellites, principally in channel S4. Spurious phase cal signals at -23 dBc level in channels S2 and S3. Recorded on Mark 5A. Wettzell (V/Wz): Scheduled outage for Intensive from 038-1759 to 038-1959. Recorded on Mark 5A. $ Clocks: Haystack Station fmout-gps Used rate Comments [usec] [usec] [sec/sec] Gc -6.7 -6.585 -46.07e-12 beginning to 038-2201 Gc -6.7 999993.415 -46.07e-12 038-2202 to 039-0153 Gc -6.7 1999993.415 -46.07e-12 039-0154 to 039-0413 Gc -6.7 -6.585 -46.07e-12 039-0414 to end Hh -1.8 -1.636 -0.14e-12 Ho 10.9 10.911 -0.17e-12 Kk -0.1 0.236 -0.17e-12 Wf 7.2 7.200 0.00e-12 Reference Wz -15.1 -14.907 -0.20e-12 Date: 05/02/07 Processing factor = 2.25* Processed in two passes due to late arrival of Hobart disk module. Fourfit quality/error code distribution by baseline and frequency: Qcodes 0 1 2 3 4 5 6 7 8 9 A B C D E F G H N - Tot ---------------------------------------------------------------------------- JE:X 1 0 0 0 0 0 0 0 16 42 0 0 0 0 0 0 0 0 0 0 59 JE:S 1 0 0 0 0 0 0 0 1 54 0 0 0 0 0 0 1 2 0 0 59 JV:X 2 0 0 0 0 0 0 0 4 149 0 0 0 0 0 0 0 0 0 0 155 JV:S 2 0 0 0 0 0 0 4 2 147 0 0 0 0 0 0 0 0 0 0 155 JA:X 2 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 7 JA:S 1 0 0 0 0 0 1 0 1 3 0 1 0 0 0 0 0 0 0 0 7 JH:X 13 0 0 0 0 0 0 3 16 75 0 0 0 0 0 0 1 0 0 13 121 JH:S 0 0 0 0 0 0 0 0 4 104 0 0 0 0 0 0 0 0 0 13 121 JK:X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 JK:S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 EV:X 1 0 0 0 0 0 0 0 4 216 0 0 0 0 0 0 0 0 0 0 221 EV:S 1 0 0 0 0 0 0 2 14 187 0 0 0 0 0 0 16 1 0 0 221 EA:X 52 0 0 0 0 0 5 1 38 142 0 0 0 4 0 0 0 0 0 41 283 EA:S 38 0 0 0 0 2 1 3 32 147 0 1 0 0 0 0 14 0 4 41 283 EH:X 0 0 0 0 0 0 0 0 1 7 0 0 0 0 0 0 0 0 0 5 13 EH:S 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 5 13 EK:X 2 0 0 0 0 0 0 0 45 138 0 0 0 0 0 0 1 0 0 0 186 EK:S 1 0 0 0 0 0 0 1 9 155 0 0 0 0 0 0 18 2 0 0 186 VA:X 33 0 0 0 0 0 1 5 32 90 0 0 0 2 0 0 0 1 0 36 200 VA:S 20 0 0 0 0 1 1 6 26 104 0 1 0 0 1 0 1 1 2 36 200 VH:X 0 0 0 0 0 0 0 0 1 21 0 0 0 0 0 0 0 0 0 1 23 VH:S 0 0 0 0 0 0 0 0 1 21 0 0 0 0 0 0 0 0 0 1 23 VK:X 0 0 0 0 0 0 0 0 3 89 0 0 0 0 0 0 0 0 0 0 92 VK:S 0 0 0 0 0 0 0 0 1 91 0 0 0 0 0 0 0 0 0 0 92 AH:X 11 0 0 0 0 0 0 0 2 12 0 0 0 0 0 0 0 0 0 20 45 AH:S 6 0 0 0 0 0 0 0 3 16 0 0 0 0 0 0 0 0 0 20 45 AK:X 64 0 0 0 0 2 1 7 29 131 0 0 0 6 0 0 1 0 0 39 280 AK:S 42 0 0 0 0 1 4 14 27 147 0 0 0 0 0 0 0 0 6 39 280 HK:X 1 0 0 0 0 0 0 3 14 103 0 0 0 0 0 0 0 0 0 15 136 HK:S 0 0 0 0 0 0 0 0 9 112 0 0 0 0 0 0 0 0 0 15 136 ---------------------------------------------------------------------------- Totals 294 0 0 0 0 6 14 49 335 2516 0 3 0 12 1 0 53 7 12 340 3642 MEAN RATIOS = Observed SNR / Predicted SNR for exp no. 3090 ...by baseline, over all sources: bl X n S n AJ 0.62 5 0.81 5 AH 0.69 14 1.72 18 AK 0.58 170 1.28 193 AE 0.66 184 1.04 199 AV 0.71 129 1.39 139 JH 1.02 95 1.70 108 JK 0.00 0 0.00 0 JE 1.52 58 1.29 58 JV 1.96 153 1.65 152 HK 1.31 120 2.31 121 HE 1.14 8 2.13 8 HV 1.92 22 2.45 22 KE 1.27 184 1.46 185 KV 1.36 92 1.94 92 EV 1.56 220 1.59 220 _______________________________________________ IVS-ops mailing list IVS-ops@ivscc.gsfc.nasa.gov http://ivscc.gsfc.nasa.gov/mailman/listinfo/ivs-ops