Session Notes for VO (VLBI Global Observing System-Operations) session: vo4108 Prepared by C. Thomas, NVI, Inc./GSFC =========================================================== ----- Parameter listing -------------------------------------- Experiment: VO4108 Description VGOS broadband session Scheduler: NASA Correlator: WETZ Start: 2024-108-12:00:00 End: 2024-109-12:00:00 Current yyyyddd: 2024108 (2024.30) ( 20418 MJD, WED. 17APR.) Greenwich sidereal time: 01:44:26 (12:00:00 UT) Sun's RA and DEC: 1h 43.9m 10d 45.0 =========================================================== Important Station Information Hobart and Wettzell-North were both tagged along to this schedule file. =========================================================== 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 Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Wn Ws 2229+695 24108-120000| 30 30 30 30 30 30 30 30 30 30 30| 0434-188 24108-120108| 30 30 30 30 30| 0602+673 24108-120108| 30 30 30 | 1351-018 24108-120108| 30 30 30 | 2126-158 24108-120216| 30 30 30 | OJ287 24108-120216| 30 30 30 30 30 30 30| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Wn Ws 1144+402 24109-115619| 30 30 30 30 30| 0134+311 24109-115623| 30 30 30 | 0602+673 24109-115627| 30 30 30 | 2214+350 24109-115731| 30 30 30 30 30 | 2215+150 24109-115735| 30 30 30| 2229+695 24109-115735| 30 30 30 | 0017+200 24109-115839| 30 30 30 30 30 | =========================================================== SKED Summary from file ./vo4108.skd for experiment VO4108 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 12.8 Min = 0.0 Max = 320.0 (Baseline K2-Ow on 2215+150) RMS = 19.1 Total time: 1439 minutes ( 24.0 hours). Key: Hb=HOBART12 Is=ISHIOKA K2=KOKEE12M Mg=MACGO12M Nn=NYALE13N Oe=ONSA13NE Ow=ONSA13SW Sa=RAEGSMAR Yj=RAEGYEB Wf=WESTFORD Wn=WETTZ13N Ws=WETTZ13S Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Wn Ws Avg % obs. time: 3 31 27 35 37 41 40 42 42 29 40 37 34 % cal. time: 0 4 3 4 5 5 5 5 5 4 5 5 4 % slew time: 1 18 15 21 11 20 19 17 17 37 24 21 19 % idle time: 95 46 54 39 46 32 36 35 35 29 29 36 43 total # scans: 74 817 700 931 999 1119 1068 1126 1138 757 1150 993 906 # scans/hour : 3 34 29 39 42 47 45 47 47 32 48 41 38 Avg scan (sec): 30 33 33 32 32 32 32 32 32 33 30 32 31 # data tracks: 16 16 16 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 16 16 16 Total TB(M5): 2.3 27.5 23.5 30.8 33.0 36.6 35.0 36.7 37.3 25.7 35.3 32.6 29.7 # OF OBSERVATIONS BY BASELINE | Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Wn Ws Total ---------------------------------------------------------------------- Hb| 47 53 50 15 21 20 0 8 23 17 18 272 Is| 425 431 403 310 358 197 239 188 325 296 3219 K2| 608 172 83 87 103 61 312 111 71 2086 Mg| 248 229 248 322 231 524 239 216 3346 Nn| 611 523 683 743 248 704 451 4801 Oe| 941 702 815 304 859 826 5701 Ow| 597 662 345 768 918 5467 Sa| 989 375 823 600 5391 Yj| 302 919 662 5631 Wf| 296 309 3226 Wn| 758 5819 Ws| 5125 Number of 2-station scans: 0 Number of 3-station scans: 765 Number of 4-station scans: 600 Number of 5-station scans: 223 Number of 6-station scans: 202 Number of 7-station scans: 202 Number of 8-station scans: 152 Number of 9-station scans: 64 Number of 10-station scans: 27 Number of 11-station scans: 34 Number of 12-station scans: 0 Total number of scans: 2269 Total number of obs: 25042 Total integrated obs-time: 841890 Average obs-time: 33.6 Histogram of observation durations Dur: 30 120 #Obs: | 1007| Average X-band SNRs by baseline | Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Wn Ws AVG --------------------------------------------------------------------- Hb| 58 43 39 86 51 52 - 75 30 80 53 51 Is| 65 48 77 53 51 61 64 59 64 50 59 K2| 53 59 52 51 59 73 51 50 52 56 Mg| 61 42 41 64 57 65 51 40 53 Nn| 58 67 60 64 72 69 66 65 Oe| 49 55 60 49 63 49 54 Ow| 61 67 47 68 49 57 Sa| 73 81 72 62 66 Yj| 70 79 70 69 Wf| 64 47 61 Wn| 68 68 Ws| 57 Average S-band SNRs by baseline | Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Wn Ws AVG --------------------------------------------------------------------- Hb| 36 30 27 35 25 24 - 32 22 41 24 30 Is| 48 38 52 42 40 46 49 42 59 40 46 K2| 38 40 36 36 40 47 33 41 36 40 Mg| 43 33 32 43 42 41 45 31 39 Nn| 39 43 41 43 44 56 44 45 Oe| 36 41 43 34 55 36 41 Ow| 45 48 33 58 36 42 Sa| 52 49 61 45 48 Yj| 45 66 49 50 Wf| 50 32 40 Wn| 58 58 Ws| 43 =========================================================== Recording mode Name Code GEOSX SX Recording mode for: HOBART12 ISHIOKA KOKEE12M ONSA13NE ONSA13SW RAEGSMAR RAEGYEB WESTFORD WETTZ13N 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 HbIsK2MgNnOeOwSaYjWfWnWs 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 =========================================================== 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) Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Wn Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Wn Is 15 Is 15 K2 15 15 K2 15 15 Mg 15 15 15 Mg 15 15 15 Nn 15 15 15 15 Nn 15 15 15 15 Oe 15 15 15 15 15 Oe 15 15 15 15 15 Ow 15 15 15 15 15 15 Ow 15 15 15 15 15 15 Sa 15 15 15 15 15 15 15 Sa 15 15 15 15 15 15 15 Yj 15 15 15 15 15 15 15 15 Yj 15 15 15 15 15 15 15 15 Wf 15 15 15 15 15 15 15 15 15 Wf 15 15 15 15 15 15 15 15 15 Wn 15 15 15 15 15 15 15 15 15 15 Wn 15 15 15 15 15 15 15 15 15 15 Ws 15 15 15 15 15 15 15 15 15 15 15 Ws 15 15 15 15 15 15 15 15 15 15 15