Session Notes for VO (VLBI Global Observing System-Operations) session: vo3081 Prepared by C. Thomas, NVI, Inc./GSFC =========================================================== ----- Parameter listing -------------------------------------- Experiment: VO3081 Description VGOS broadband session Scheduler: NASA Correlator: HAYS Start: 2023-081-18:00:00 End: 2023-082-18:00:00 ---------- Scan data parameters------------------------------- VScan Y (Compute scan length) Duration 30 sec (default duration for VSCAN=N) Modscan 1 sec (scans are multiples of this) Minscan 30 sec (min scan length) Maxscan 30 sec (max scan length) Setup 2 sec (settle time) Early 0 sec (start recording) Calibration 4 sec (time before obs) Corsync 1 sec (pad scan at end) Idle 0 sec (idle after obs) Minslew 0 sec (min slew time) Fill_off 0 sec (fill cmd buff) Mark6_off 0 sec (buffer offset) ---------- Procedure parameters ------------------------------ PRFLAG YYNN (required procedures) PREOB PREOB (pre-ob procedure) MIDOB MIDOB (mid-ob procedure) POSTOB MIDOB (post-ob procedure) ---------- Timing parameters ------------------------------ SOURCE 1sec (SOURCE time) Tapetm 1sec (TAPE command time) ---------- General parameters ------------------------------- MODULAR 1sec (start time mark) MINIMUM 0sec (time between obs.) LOOKAHEAD 20min (for WHATSUP) SNR MAN (reject for low SNR) WIDTH 79columns (width of screen) CONFIRM Y (ask before adding obs) KEEP_LOG Y (keep log upon exit) CONF_EQUIP N (update info from cat) DEBUG N (display debugging info) VERBOSE LEVEL 0 ---------- Informational only ------------------------------- SKED version: 2023-02-10 Schedule file: ./vo3081.skd FREQUENCY SX (default freq. code) Process ID: 96301 Printer commands: lj, ljp Current yyyyddd: 2023081 (2023.22)( 20026 MJD, WED. 22 MAR.) Greenwich sidereal time: 05:59:55 (18:00:00 UT) Sun's RA and DEC: 0h 6.8m 0d 44.2 =========================================================== Important Station Information MGO and Santa Maria were tagged along to this schedule file. =========================================================== There are no observations for Kokee, Onsala-East, and MGO from 18:15 U.T. to 19:45 U.T. Kokee, Onsala-East, and MGO will participate in an intensive session during this period. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gs Hb Ke K2 Mg Nn Oe Sa Yj Wf 1751+288 23081-180000| 30 30 30 30 30 30 30| NGC6251 23081-180000| 30 30 | 0059+581 23081-180108| 30 30 30 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gs Hb Ke K2 Mg Nn Oe Sa Yj Wf 0827+243 23082-175700| 30 30 30 30 | 1958-179 23082-175700| 30 30 30 30 | 0215+015 23082-175808| 30 30 30 30| 1639-062 23082-175821| 30 30 30 | 0454-234 23082-175916| 30 30 30 30| =========================================================== SKED Summary from file ./vo3081.skd for experiment VO3081 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 11.5 Min = 0.0 Max = 232.3 (Baseline Gs-Wf on 0648-165) RMS = 17.3 Total time: 1440 minutes ( 24.0 hours). Key: Gs=GGAO12M Hb=HOBART12 Ke=KATH12M K2=KOKEE12M Mg=MACGO12M Nn=NYALE13N Oe=ONSA13NE Sa=RAEGSMAR Yj=RAEGYEB Wf=WESTFORD Gs Hb Ke K2 Mg Nn Oe Sa Yj Wf Avg % obs. time: 30 18 25 25 16 36 32 21 37 27 27 % cal. time: 4 2 3 3 2 5 4 3 5 4 4 % slew time: 32 21 28 15 10 11 17 8 16 38 20 % idle time: 33 58 43 56 71 47 47 67 41 30 50 total # scans: 872 515 716 712 452 1025 910 605 1069 773 764 # scans/hour : 36 21 30 30 19 43 38 25 45 32 32 Avg scan (sec): 30 30 30 30 30 30 30 30 30 30 30 # 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 15.8 22.0 21.9 13.9 31.5 28.0 18.6 32.8 23.7 23.5 # OF OBSERVATIONS BY BASELINE | Gs Hb Ke K2 Mg Nn Oe Sa Yj Wf Total ------------------------------------------------------------ Gs| 22 39 305 358 454 351 421 512 681 3143 Hb| 486 363 69 40 64 0 34 24 1102 Ke| 396 97 203 216 40 167 48 1692 K2| 273 145 112 128 72 300 2094 Mg| 182 177 192 191 339 1878 Nn| 711 408 818 338 3299 Oe| 345 750 319 3045 Sa| 487 364 2385 Yj| 406 3437 Wf| 2819 Number of 2-station scans: 158 Number of 3-station scans: 803 Number of 4-station scans: 551 Number of 5-station scans: 251 Number of 6-station scans: 137 Number of 7-station scans: 69 Number of 8-station scans: 20 Number of 9-station scans: 0 Number of 10-station scans: 0 Total number of scans: 1989 Total number of obs: 12447 Total integrated obs-time: 373410 Average obs-time: 30.0 Histogram of observation durations Dur: 30 #Obs: | Average X-band SNRs by baseline | Gs Hb Ke K2 Mg Nn Oe Sa Yj Wf AVG ----------------------------------------------------------- Gs| 45 34 47 58 42 38 63 54 58 52 Hb| 62 52 45 44 38 - 50 48 55 Ke| 51 39 40 36 45 43 34 49 K2| 64 49 35 53 44 51 51 Mg| 53 39 66 59 63 57 Nn| 55 64 62 53 54 Oe| 62 62 44 51 Sa| 89 72 69 Yj| 67 64 Wf| 58 Average S-band SNRs by baseline | Gs Hb Ke K2 Mg Nn Oe Sa Yj Wf AVG ----------------------------------------------------------- Gs| 26 25 33 42 32 30 46 40 39 38 Hb| 32 30 27 28 23 - 31 24 30 Ke| 32 26 29 26 31 32 21 30 K2| 40 33 29 37 33 29 33 Mg| 36 29 44 39 37 37 Nn| 38 43 42 34 37 Oe| 44 45 30 37 Sa| 61 44 47 Yj| 40 44 Wf| 36 =========================================================== Recording mode Name Code GEOSX SX Recording mode for: GGAO12M HOBART12 KATH12M KOKEE12M ONSA13NE RAEGSMAR RAEGYEB WESTFORD 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 =========================================================== Minor Options BegScan Rel 1.00 EndScan Rel 1.00 StatWt Abs 1.00 =========================================================== Major Options Subnet GsHbKeK2MgNnOeSaYjWf SkyCov Yes AllBlGood Yes MaxAngle 180.00 MinAngle 30.00 MinBetween 20 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 3 KATH12M 1.00 =========================================================== 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 Ke K2 Mg Nn Oe Sa Yj Gs Hb Ke K2 Mg Nn Oe Sa Yj Hb 15 Hb 15 Ke 15 15 Ke 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 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