Session Notes for VO (VLBI Global Observing System-Operations) session: vo4213 Prepared by C. Thomas, NVI, Inc./GSFC =========================================================== ----- Parameter listing -------------------------------------- Experiment: VO4213 Description VGOS broadband session Scheduler: NASA Correlator: BONN Start: 2024-213-12:00:00 End: 2024-214-12:00:00 Current yyyyddd: 2024213 (2024.58) ( 20523 MJD, WED. 31JUL.) Greenwich sidereal time: 08:38:24 (12:00:00 UT) Sun's RA and DEC: 8h 44.8m 18d 3.8 =========================================================== 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 Hb Is Ke K2 Mg Nn Oe Wf Ws 0606-223 24213-120000| 30 30 30 | 1751+288 24213-120000| 30 30 30 30 30 30 | 0235+164 24213-120108| 30 30 30 | 1502+106 24213-120108| 30 30 30 30 30| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gs Hb Is Ke K2 Mg Nn Oe Wf Ws 0202+319 24214-115726| 30 30 30 30 30 30 30| 1705+018 24214-115833| 30 30 30 | 1849+670 24214-115834| 30 30 30| =========================================================== SKED Summary from file ./vo4213.skd for experiment VO4213 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 11.1 Min = 0.0 Max = 205.7 (Baseline Is-Ws on 1213-172) RMS = 18.0 Total time: 1439 minutes ( 24.0 hours). Key: Gs=GGAO12M Hb=HOBART12 Is=ISHIOKA Ke=KATH12M K2=KOKEE12M Mg=MACGO12M Nn=NYALE13N Oe=ONSA13NE Wf=WESTFORD Ws=WETTZ13S Gs Hb Is Ke K2 Mg Nn Oe Wf Ws Avg % obs. time: 30 32 34 34 27 31 34 34 28 32 32 % cal. time: 4 4 4 4 3 4 4 4 3 4 4 % slew time: 28 35 18 38 14 18 10 16 34 18 23 % idle time: 37 29 43 22 55 46 51 44 33 44 41 total # scans: 800 840 855 916 677 818 905 901 751 846 830 # scans/hour : 33 35 36 38 28 34 38 38 31 35 35 Avg scan (sec): 33 32 35 32 34 33 32 33 33 33 32 # data tracks: 16 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 16 Total TB(M5): 26.8 27.9 30.3 30.4 23.6 27.6 30.1 30.4 25.2 28.7 28.1 # OF OBSERVATIONS BY BASELINE | Gs Hb Is Ke K2 Mg Nn Oe Wf Ws Total ------------------------------------------------------------ Gs| 32 117 41 196 627 316 285 636 254 2504 Hb| 589 790 394 123 39 36 21 51 2075 Is| 674 260 154 225 190 102 154 2465 Ke| 388 110 106 104 32 111 2356 K2| 325 116 86 191 75 2031 Mg| 236 196 579 160 2510 Nn| 770 272 692 2772 Oe| 254 799 2720 Wf| 226 2313 Ws| 2522 Number of 2-station scans: 0 Number of 3-station scans: 1558 Number of 4-station scans: 411 Number of 5-station scans: 156 Number of 6-station scans: 108 Number of 7-station scans: 46 Number of 8-station scans: 29 Number of 9-station scans: 1 Number of 10-station scans: 0 Total number of scans: 2309 Total number of obs: 12134 Total integrated obs-time: 435030 Average obs-time: 35.9 Histogram of observation durations Dur: 30 120 #Obs: | 789| Average X-band SNRs by baseline | Gs Hb Is Ke K2 Mg Nn Oe Wf Ws AVG ----------------------------------------------------------- Gs| 56 61 45 50 52 64 47 57 48 54 Hb| 60 55 49 46 46 53 44 52 54 Is| 69 89 68 85 63 62 68 69 Ke| 48 44 48 43 38 45 56 K2| 61 71 49 52 49 57 Mg| 64 47 55 47 55 Nn| 71 77 69 70 Oe| 57 55 58 Wf| 58 59 Ws| 58 Average S-band SNRs by baseline | Gs Hb Is Ke K2 Mg Nn Oe Wf Ws AVG ----------------------------------------------------------- Gs| 24 42 24 37 40 43 36 39 37 39 Hb| 36 31 29 25 29 27 21 26 31 Is| 45 60 44 59 48 39 50 46 Ke| 31 25 31 27 21 28 34 K2| 42 46 36 33 35 38 Mg| 42 34 35 35 38 Nn| 43 42 42 43 Oe| 35 40 39 Wf| 36 37 Ws| 39 =========================================================== Recording mode Name Code GEOSX SX Recording mode for: GGAO12M HOBART12 ISHIOKA KATH12M KOKEE12M ONSA13NE 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 Recording mode for: NYALE13N 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 =========================================================== Calibrator Source Information A calibrator source was scheduled every hour during this session with a duration of 120 seconds. =========================================================== Minor Options BegScan Rel 1.00 EndScan Rel 1.00 StatWt Abs 1.00 =========================================================== Major Options Subnet GsHbIsKeK2MgNnOeWfWs 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 HOBART12 2.00 4 KATH12M 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 Hb Is Ke K2 Mg Nn Oe Wf Gs Hb Is Ke K2 Mg Nn Oe Wf Hb 15 Hb 15 Is 15 15 Is 15 15 Ke 15 15 15 Ke 15 15 15 K2 15 15 15 15 K2 15 15 15 15 Mg 15 15 15 15 15 Mg 15 15 15 15 15 Nn 15 15 15 15 15 15 Nn 15 15 15 15 15 15 Oe 15 15 15 15 15 15 15 Oe 15 15 15 15 15 15 15 Wf 15 15 15 15 15 15 15 15 Wf 15 15 15 15 15 15 15 15 Ws 15 15 15 15 15 15 15 15 15 Ws 15 15 15 15 15 15 15 15 15