Session Notes for VO (VLBI Global Observing System-Operations) session: vo3054 Prepared by C. Thomas, NVI, Inc./GSFC =========================================================== ----- Parameter listing -------------------------------------- Experiment: VO3054 Description VGOS broadband session Scheduler: NASA Correlator: BONN Start: 2023-054-18:00:00 End: 2023-055-18:00:00 ---------- 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: ./vo3054.skd FREQUENCY SX (default freq. code) Process ID: 24745 Printer commands: lj, ljp Current yyyyddd: 2023054 (2023.15)( 19999 MJD, THUR 23 FEB.) Greenwich sidereal time: 04:13:28 (18:00:00 UT) Sun's RA and DEC: 22h 26.8m -9d 43.7 =========================================================== There are no observations for Kokee and Onsala-East from 18:15 U.T. to 19:45 U.T. Kokee and Onsala-East will participate in an intensive session during this period. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Gs Hb K2 Mg Oe Ow Yj Wf 0235+164 23054-180000| 30 30 30 30 30 30| 1424-418 23054-180000| 30 30 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gs Hb K2 Mg Oe Ow Yj Wf 1502+036 23055-175032| 30 30 | 0800+618 23055-175138| 30 30 | 2325+093 23055-175138| 30 30 | 0235+164 23055-175246| 30 30 30 30| NRAO150 23055-175246| 30 30 | 0648-165 23055-175354| 30 30 | 0059+581 23055-175459| 30 30 30 30| 0420+022 23055-175624| 30 30 30 30 | 2008-159 23055-175635| 30 30| 1546+027 23055-175744| 30 30 | 0552+398 23055-175817| 30 30 30 30 30| 0458-020 23055-175925| 30 30 30 | 1803+784 23055-175925| 30 30 30| =========================================================== SKED Summary from file ./vo3054.skd for experiment VO3054 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 15.1 Min = 0.0 Max = 308.6 (Baseline Oe-Ow on 2319+317) RMS = 19.7 Total time: 1440 minutes ( 24.0 hours). Key: Gs=GGAO12M Hb=HOBART12 K2=KOKEE12M Mg=MACGO12M Oe=ONSA13NE Ow=ONSA13SW Yj=RAEGYEB Wf=WESTFORD Gs Hb K2 Mg Oe Ow Yj Wf Avg % obs. time: 36 22 29 35 29 30 35 28 30 % cal. time: 5 3 4 5 4 4 5 4 4 % slew time: 38 26 18 23 15 15 14 44 25 % idle time: 21 47 48 36 52 50 45 24 41 total # scans: 1023 641 848 1016 828 859 1005 807 878 # scans/hour : 43 27 35 42 35 36 42 34 37 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): 31.4 19.7 26.1 31.2 25.4 26.4 30.9 24.8 27.0 # OF OBSERVATIONS BY BASELINE | Gs Hb K2 Mg Oe Ow Yj Wf Total -------------------------------------------------- Gs| 27 262 779 537 579 761 700 3645 Hb| 496 134 46 57 58 33 851 K2| 381 152 148 154 254 1847 Mg| 458 485 586 626 3449 Oe| 744 658 439 3034 Ow| 653 471 3137 Yj| 548 3418 Wf| 3071 Number of 2-station scans: 964 Number of 3-station scans: 306 Number of 4-station scans: 213 Number of 5-station scans: 230 Number of 6-station scans: 257 Number of 7-station scans: 91 Number of 8-station scans: 0 Total number of scans: 2061 Total number of obs: 11226 Total integrated obs-time: 336780 Average obs-time: 30.0 Histogram of observation durations Dur: 30 #Obs: | Average X-band SNRs by baseline | Gs Hb K2 Mg Oe Ow Yj Wf AVG ------------------------------------------------- Gs| 38 43 57 45 45 61 66 55 Hb| 50 40 48 47 47 37 47 K2| 61 38 37 49 52 49 Mg| 42 42 59 66 55 Oe| 71 84 54 60 Ow| 89 54 61 Yj| 77 72 Wf| 63 Average S-band SNRs by baseline | Gs Hb K2 Mg Oe Ow Yj Wf AVG ------------------------------------------------- Gs| 29 36 43 35 35 45 46 41 Hb| 32 29 31 30 30 21 31 K2| 42 30 30 38 34 35 Mg| 31 30 41 41 38 Oe| 51 60 34 43 Ow| 63 34 43 Yj| 47 50 Wf| 40 =========================================================== Recording mode Name Code GEOSX SX Recording mode for: GGAO12M HOBART12 KOKEE12M ONSA13NE ONSA13SW 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 =========================================================== Minor Options BegScan Rel 1.00 EndScan Rel 1.00 StatWt Abs 1.00 =========================================================== Major Options Subnet GsHbK2MgOeOwYjWf SkyCov Yes AllBlGood Yes MaxAngle 180.00 MinAngle 30.00 MinBetween 20 MinSunDist 15.00 MaxSlewTime 300 TimeWindow 24.00 MinSubNetSize 2 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 1 GGAO12M 1.00 2 HOBART12 3.00 4 MACGO12M 1.00 7 RAEGYEB 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 K2 Mg Oe Ow Yj Gs Hb K2 Mg Oe Ow Yj Hb 15 Hb 15 K2 15 15 K2 15 15 Mg 15 15 15 Mg 15 15 15 Oe 15 15 15 15 Oe 15 15 15 15 Ow 15 15 15 15 15 Ow 15 15 15 15 15 Yj 15 15 15 15 15 15 Yj 15 15 15 15 15 15 Wf 15 15 15 15 15 15 15 Wf 15 15 15 15 15 15 15