Session Notes for VO (VLBI Global Observing System-Operations) session: vo4087 Prepared by C. Thomas, NVI, Inc./GSFC =========================================================== ----- Parameter listing -------------------------------------- Experiment: VO4087 Description VGOS broadband session Scheduler: NASA Correlator: BONN Start: 2024-087-12:00:00 End: 2024-088-12:00:00 Current yyyyddd: 2024087 (2024.24) ( 20397 MJD, WED. 27MAR.) Greenwich sidereal time: 00:21:38 (12:00:00 UT) Sun's RA and DEC: 0h 26.9m 2d 54.1 =========================================================== Important Station Information Ny Alesund North and Hobart-12m were 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 Gs Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Ws 2000+472 24087-120000| 30 30 30 30 30 30 30 30 30 30| 0420+022 24087-120108| 30 30 30 30| 3C274 24087-120108| 30 30 30 | 0748+126 24087-120216| 30 30 30 | 1954-388 24087-120216| 30 30 30 | 1502+036 24087-120324| 30 30 30 30 | 2255-282 24087-120324| 30 30 30 30| 0800+618 24087-120432| 30 30 30 30 | 0805+410 24087-120432| 30 30 30| 1657-261 24087-120434| 30 30 30 30 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gs Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Ws 1156+295 24088-115753| 30 30 30 30 | 2319+317 24088-115753| 30 30 30 | 0235+164 24088-115901| 30 30 30 30 30 30| 1546+027 24088-115919| 30 30 30 30 | =========================================================== SKED Summary from file ./vo4087.skd for experiment VO4087 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 12.2 Min = 0.0 Max = 270.0 (Baseline Gs-Wf on 0648-165) RMS = 16.9 Total time: 1440 minutes ( 24.0 hours). Key: Gs=GGAO12M Hb=HOBART12 Is=ISHIOKA K2=KOKEE12M Mg=MACGO12M Nn=NYALE13N Oe=ONSA13NE Ow=ONSA13SW Sa=RAEGSMAR Yj=RAEGYEB Wf=WESTFORD Ws=WETTZ13S Gs Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Ws Avg % obs. time: 33 5 31 26 37 30 42 41 40 41 32 37 33 % cal. time: 4 1 4 3 5 4 5 5 5 5 4 5 4 % slew time: 32 3 19 14 22 9 20 20 16 16 39 21 20 % idle time: 31 91 46 56 35 55 32 33 39 37 25 36 43 total # scans: 860 130 812 679 993 876 1124 1098 1061 1099 837 1005 881 # scans/hour : 36 5 34 28 41 37 47 46 44 46 35 42 37 Avg scan (sec): 33 30 33 33 32 30 32 32 32 32 33 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): 28.9 4.0 27.2 22.9 32.7 26.9 36.9 36.1 35.0 36.1 28.2 33.1 29.0 # OF OBSERVATIONS BY BASELINE | Gs Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Ws Total ---------------------------------------------------------------------- Gs| 27 271 314 590 316 244 270 414 339 619 252 3656 Hb| 96 92 82 29 44 43 0 16 33 39 501 Is| 403 424 430 310 344 250 277 232 288 3325 K2| 584 211 102 109 120 73 316 95 2419 Mg| 317 215 222 325 222 594 205 3780 Nn| 581 585 482 506 315 483 4255 Oe| 1012 655 819 270 851 5103 Ow| 582 735 291 911 5104 Sa| 882 373 544 4627 Yj| 274 703 4846 Wf| 274 3591 Ws| 4645 Number of 2-station scans: 0 Number of 3-station scans: 677 Number of 4-station scans: 657 Number of 5-station scans: 398 Number of 6-station scans: 211 Number of 7-station scans: 151 Number of 8-station scans: 65 Number of 9-station scans: 47 Number of 10-station scans: 34 Number of 11-station scans: 29 Number of 12-station scans: 0 Total number of scans: 2269 Total number of obs: 22926 Total integrated obs-time: 779400 Average obs-time: 34.0 Histogram of observation durations Dur: 30 120 #Obs: | 1018| Average X-band SNRs by baseline | Gs Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Ws AVG --------------------------------------------------------------------- Gs| 36 47 47 57 59 50 49 70 63 63 49 57 Hb| 63 46 38 62 46 47 - 58 33 47 48 Is| 75 51 75 57 57 54 58 51 55 59 K2| 58 56 48 47 56 64 51 46 56 Mg| 57 43 42 71 61 66 43 56 Nn| 66 69 72 70 66 68 67 Oe| 66 64 68 54 68 63 Ow| 69 72 54 68 64 Sa| 96 92 78 76 Yj| 81 81 75 Wf| 54 64 Ws| 67 Average S-band SNRs by baseline | Gs Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Ws AVG --------------------------------------------------------------------- Gs| 29 38 37 42 40 39 38 50 46 40 38 41 Hb| 43 34 29 31 25 25 - 37 23 24 31 Is| 53 39 47 42 41 39 42 33 40 42 K2| 40 36 34 33 41 44 33 32 39 Mg| 37 32 32 46 42 40 32 39 Nn| 41 43 45 46 36 43 42 Oe| 41 44 46 34 42 41 Ow| 48 49 34 42 42 Sa| 63 53 52 50 Yj| 48 55 50 Wf| 34 39 Ws| 44 =========================================================== Recording mode Name Code GEOSX SX Recording mode for: GGAO12M HOBART12 ISHIOKA KOKEE12M ONSA13NE ONSA13SW RAEGSMAR RAEGYEB 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 GsHbIsK2MgNnOeOwSaYjWfWs 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) Gs Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Gs Hb Is K2 Mg Nn Oe Ow Sa Yj Wf Hb 15 Hb 15 Is 15 15 Is 15 15 K2 15 15 15 K2 15 15 15 Mg 15 15 15 15 Mg 15 15 15 15 Nn 15 15 15 15 15 Nn 15 15 15 15 15 Oe 15 15 15 15 15 15 Oe 15 15 15 15 15 15 Ow 15 15 15 15 15 15 15 Ow 15 15 15 15 15 15 15 Sa 15 15 15 15 15 15 15 15 Sa 15 15 15 15 15 15 15 15 Yj 15 15 15 15 15 15 15 15 15 Yj 15 15 15 15 15 15 15 15 15 Wf 15 15 15 15 15 15 15 15 15 15 Wf 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