Session Notes for VO (VLBI Global Observing System-Operations) session: vo3039 Prepared by C. Thomas, NVI, Inc./GSFC =========================================================== ----- Parameter listing -------------------------------------- Experiment: VO3039 Description VGOS broadband session Scheduler: NASA Correlator: WETZ Start: 2023-039-18:00:00 End: 2023-040-18:00:00 ---------- 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: 2023-01-13 Schedule file: ./vo3039.skd FREQUENCY SX (default freq. code) Process ID: 40561 Printer commands: lj, ljp Current yyyyddd: 2023039 (2023.11)( 19984 MJD, WED. 8 FEB.) Greenwich sidereal time: 03:14:20 (18:00:00 UT) Sun's RA and DEC: 21h 28.5m -14d 54.2 =========================================================== 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 0133+476 23039-180000| 30 30 30 30 30 30| 1406-076 23039-180000| 30 30 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gs Hb K2 Mg Oe Ow Yj Wf 1741-038 23040-175846| 30 30 | 0035-252 23040-175926| 30 30 30 30| 1128+385 23040-175927| 30 30 | =========================================================== SKED Summary from file ./vo3039.skd for experiment VO3039 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 17.7 Min = 0.0 Max = 4320.0 (Baseline Mg-Ow on 2319+317) RMS = 97.7 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: 35 23 28 36 29 29 36 29 31 % cal. time: 5 3 4 5 4 4 5 4 4 % slew time: 38 28 17 23 15 15 15 44 25 % idle time: 22 45 49 36 51 50 44 22 40 total # scans: 1012 671 816 1023 833 849 1028 827 882 # scans/hour : 42 28 34 43 35 35 43 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): 31.1 20.6 25.1 31.4 25.6 26.1 31.6 25.4 27.1 # OF OBSERVATIONS BY BASELINE | Gs Hb K2 Mg Oe Ow Yj Wf Total -------------------------------------------------- Gs| 38 253 791 490 520 749 730 3571 Hb| 482 159 52 58 67 37 893 K2| 354 142 144 134 250 1759 Mg| 410 433 573 665 3385 Oe| 755 646 452 2947 Ow| 646 481 3037 Yj| 563 3378 Wf| 3178 Number of 2-station scans: 953 Number of 3-station scans: 385 Number of 4-station scans: 228 Number of 5-station scans: 170 Number of 6-station scans: 270 Number of 7-station scans: 88 Number of 8-station scans: 0 Total number of scans: 2094 Total number of obs: 11074 Total integrated obs-time: 332220 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| 42 47 55 46 45 59 62 54 Hb| 49 37 48 49 46 38 46 K2| 62 36 35 47 49 49 Mg| 42 42 56 63 53 Oe| 69 82 52 60 Ow| 86 51 60 Yj| 74 70 Wf| 60 Average S-band SNRs by baseline | Gs Hb K2 Mg Oe Ow Yj Wf AVG ------------------------------------------------- Gs| 25 38 42 39 39 45 43 42 Hb| 31 25 28 27 28 20 29 K2| 42 33 33 39 33 36 Mg| 35 34 41 39 39 Oe| 51 60 35 45 Ow| 63 35 45 Yj| 45 50 Wf| 39 =========================================================== 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