Session Notes for R1 (Rapid Turnaround Monday) session: r1874 Prepared by C. Thomas, NVI, Inc./GSFC Refer to http://ivscc.gsfc.nasa.gov/program/descrip2018.html#r1 for the session purpose. =========================================================== ----- Parameter listing -------------------------------------- Experiment: R1874 Description IVS-R1 Scheduler: NASA Correlator: BONN Start: 2018-360-17:00:00 End: 2018-361-17:00:00 Current yyyyddd: 2018360 (2018.99) ( 18479 MJD, WED. 26DEC.) Greenwich sidereal time: 23:20:34 (17:00:00 UT) Sun's RA and DEC: 18h 21.2m -23d 20.8 =========================================================== Important Station Information The SEFDs for Kokee were increased to 6000 for X-band and 3000 for S-band because Kokee will be observing with a warm receiver. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Ft Is Kk Ma Ys 3C371 18360-170000| 186 221 221 139 169| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ft Is Kk Ma Ys 0743+277 18361-165438| 295 295 | 0017+200 18361-165622| 76 62 76| 0119+115 18361-165831| 84 84| =========================================================== SKED Summary from file ./r1874.skd for experiment R1874 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 14.5 Min = 0.0 Max = 80.0 (Baseline Is-Ys on 0727-115) RMS = 15.1 Total time: 1440 minutes ( 24.0 hours). Key: Ft=FORTLEZA Is=ISHIOKA Kk=KOKEE Ma=MATERA Ys=YEBES40M Ft Is Kk Ma Ys Avg % obs. time: 32 61 47 51 52 49 % cal. time: 3 6 5 5 6 5 % slew time: 30 10 21 36 32 26 % idle time: 33 21 26 7 9 20 total # scans: 260 532 395 474 514 435 # scans/hour : 11 22 16 20 21 18 Avg scan (sec): 108 100 103 92 87 97 # data tracks: 32 32 32 32 32 # Mk5 tracks: 32 32 32 32 32 Total TB(M5): 1.79 3.39 2.61 2.80 2.87 2.69 # OF OBSERVATIONS BY BASELINE | Ft Is Kk Ma Ys Total ----------------------------------- Ft| 57 61 210 232 560 Is| 344 299 314 1014 Kk| 141 161 707 Ma| 448 1098 Ys| 1155 Number of 2-station scans: 284 Number of 3-station scans: 315 Number of 4-station scans: 143 Number of 5-station scans: 18 Total number of scans: 760 Total number of obs: 2267 Total integrated obs-time: 209404 Average obs-time: 92.4 Histogram of observation durations Dur: 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 #Obs: | 560| 201| 178| 245| 144| 137| 97| 104| 143| 104| 56| 105| 38| 28| 32| 23| 15| 19| 38| Average X-band SNRs by baseline | Ft Is Kk Ma Ys AVG ---------------------------------- Ft| 34 26 37 113 67 Is| 37 41 94 56 Kk| 24 59 38 Ma| 188 98 Ys| 129 Average S-band SNRs by baseline | Ft Is Kk Ma Ys AVG ---------------------------------- Ft| 18 27 20 27 23 Is| 42 23 27 31 Kk| 24 28 34 Ma| 38 29 Ys| 31 =========================================================== Recording mode Name Code GEOSX8N 8F Recording mode for: FORTLEZA ISHIOKA KOKEE MATERA YEBES40M Mode Tot.Rate Tot.BandW #BBC #bits Barrel Mk341:1 512 Mbits 128 MHz 14 2 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks 8.00 MHz 1 32(*1) 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 19.13 11.48 30.61 =========================================================== Monitoring Sources Source Min Max Actual #Num #Scans 2306-312 1.00 1.50 0.04 1 1 3C286 1.00 1.50 0.57 13 5 0116+319 1.00 1.50 0.18 4 4 0421+145 1.00 1.50 0.04 1 1 3C166 1.00 1.50 0.13 3 1 2128+048 1.00 1.50 0.26 6 6 1021-006 1.00 1.50 0.22 5 5 1044+719 1.00 1.50 1.50 34 14 0451-282 1.00 1.50 0.75 17 9 1557+032 1.00 1.50 0.44 10 4 Total 4.15 94 50 =========================================================== Minor Options Astro Abs 3.00 BegScan Rel 1.00 EndScan Rel 1.00 NumObs Rel 1.00 StatIdle Abs 3.00 StatWt Abs 2.00 =========================================================== Major Options Subnet FtIsKkMaYs SkyCov Yes AllBlGood Yes MaxAngle 180.00 MinAngle 15.00 MinBetween 20 MinSunDist 4.00 MaxSlewTime 300 TimeWindow 4.00 MinSubNetSize 2 NumSubNet 1 Best 60 FillIn Yes FillMinSub 3 FillMinTime 120 FillBest 80 Add_ps 30.0 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) Ft Is Kk Ma Ft Is Kk Ma Is 20 Is 15 Kk 20 20 Kk 15 15 Ma 20 20 20 Ma 15 15 15 Ys 20 20 20 20 Ys 15 15 15 15