Session Notes for VO (VLBI Global Observing System-Operations) session: vo4003 Prepared by C. Thomas, NVI, Inc./GSFC =========================================================== ----- Parameter listing -------------------------------------- Experiment: VO4003 Description VGOS broadband session Scheduler: NASA Correlator: VIEN Start: 2024-003-12:00:00 End: 2024-004-12:00:00 Current yyyyddd: 2024003 (2024.01) ( 20313 MJD, WED. 3JAN.) Greenwich sidereal time: 18:50:27 (12:00:00 UT) Sun's RA and DEC: 18h 54.7m -22d 50.4 =========================================================== There are no observations for Kokee and Wettzell-South from 17:15 U.T. to 18:45 U.T. Kokee and Wettzell-South will participate in an intensive session during this period. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gs K2 Mg Oe Ow Sa Wf Ws 1039+811 24003-120000| 30 30 30 30 30 30 30 30| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gs K2 Mg Oe Ow Sa Wf Ws 0613+570 24004-115718| 30 30 30 30 30 | 2227-088 24004-115742| 30 30 30| 1030+415 24004-115826| 30 30 30 30 | 0202+319 24004-115850| 30 30 30| =========================================================== SKED Summary from file ./vo4003.skd for experiment VO4003 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 16.7 Min = 0.0 Max = 2592.0 (Baseline Oe-Ow on 0201+113) RMS = 78.2 Total time: 1439 minutes ( 24.0 hours). Key: Gs=GGAO12M K2=KOKEE12M Mg=MACGO12M Oe=ONSA13NE Ow=ONSA13SW Sa=RAEGSMAR Wf=WESTFORD Ws=WETTZ13S Gs K2 Mg Oe Ow Sa Wf Ws Avg % obs. time: 35 35 37 36 36 33 32 32 35 % cal. time: 5 5 5 5 5 4 4 4 5 % slew time: 36 19 24 19 19 14 40 20 24 % idle time: 24 40 32 39 40 47 23 42 36 total # scans: 994 994 1072 1043 1029 955 931 932 993 # scans/hour : 41 41 45 43 43 40 39 39 41 Avg scan (sec): 30 30 30 30 30 30 30 30 30 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total TB(M5): 30.5 30.5 32.9 32.0 31.6 29.3 28.6 28.6 30.5 # OF OBSERVATIONS BY BASELINE | Gs K2 Mg Oe Ow Sa Wf Ws Total -------------------------------------------------- Gs| 791 893 347 351 484 720 310 3896 K2| 927 298 297 399 715 269 3696 Mg| 287 283 453 829 264 3936 Oe| 999 727 329 884 3871 Ow| 707 333 863 3833 Sa| 465 641 3876 Wf| 309 3700 Ws| 3540 Number of 2-station scans: 0 Number of 3-station scans: 720 Number of 4-station scans: 596 Number of 5-station scans: 271 Number of 6-station scans: 43 Number of 7-station scans: 55 Number of 8-station scans: 176 Total number of scans: 1861 Total number of obs: 15174 Total integrated obs-time: 455220 Average obs-time: 30.0 Histogram of observation durations Dur: 30 #Obs: | Average X-band SNRs by baseline | Gs K2 Mg Oe Ow Sa Wf Ws AVG ------------------------------------------------- Gs| 36 50 35 35 62 56 34 46 K2| 47 30 30 42 40 30 39 Mg| 33 33 57 56 32 48 Oe| 56 62 41 57 50 Ow| 62 41 57 50 Sa| 74 63 61 Wf| 40 51 Ws| 51 Average S-band SNRs by baseline | Gs K2 Mg Oe Ow Sa Wf Ws AVG ------------------------------------------------- Gs| 31 40 31 31 47 40 31 37 K2| 35 28 28 35 29 28 31 Mg| 30 30 42 36 30 36 Oe| 40 44 29 40 37 Ow| 44 29 40 37 Sa| 46 45 44 Wf| 29 35 Ws| 37 =========================================================== Recording mode Name Code GEOSX SX Recording mode for: GGAO12M KOKEE12M ONSA13NE ONSA13SW RAEGSMAR WESTFORD WETTZ13S Mode Tot.Rate #Chan Chan.BW Tot.BW #BBC #bits Tracks*(fan) Tot.tracks Mk341:1 256 Mbps 16 8 Mhz 128 Mhz 14 1 16*(1) 16 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 140.0 MHz rms spanned bw= 50.9 MHz Effective number of 1-bit channels recorded per sub-pass X S Total 10.00 6.00 16.00 Recording mode for: MACGO12M Mode Tot.Rate #Chan Chan.BW Tot.BW #BBC #bits Tracks*(fan) Tot.tracks Mk341:2 256 Mbps 16 8 Mhz 128 Mhz 14 1 16*(2) 32 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 140.0 MHz rms spanned bw= 50.9 MHz Effective number of 1-bit channels recorded per sub-pass X S Total 10.00 6.00 16.00 =========================================================== Minor Options BegScan Rel 1.00 EndScan Rel 1.00 StatWt Abs 1.00 =========================================================== Major Options Subnet GsK2MgOeOwSaWfWs SkyCov Yes AllBlGood Yes MaxAngle 180.00 MinAngle 30.00 MinBetween 15 MinSunDist 15.00 MaxSlewTime 300 TimeWindow 24.00 MinSubNetSize 3 NumSubNet 2 Best 60 FillIn Yes FillMinSub 3 FillMinTime 120 FillBest 80 Add_ps 5.0 El_noise 0.0 SNRWts Yes SplitTwins No =========================================================== Weighted Station 2 KOKEE12M 2.00 =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) X-band (ast_margin 0) S-band (ast_margin 0) Gs K2 Mg Oe Ow Sa Wf Gs K2 Mg Oe Ow Sa Wf K2 15 K2 15 Mg 15 15 Mg 15 15 Oe 15 15 15 Oe 15 15 15 Ow 15 15 15 15 Ow 15 15 15 15 Sa 15 15 15 15 15 Sa 15 15 15 15 15 Wf 15 15 15 15 15 15 Wf 15 15 15 15 15 15 Ws 15 15 15 15 15 15 15 Ws 15 15 15 15 15 15 15