Session Notes for APSG (Asian Pacific Space Geodynamics) session: apsg27 Prepared by C. Thomas, NVI, Inc./GSFC =========================================================== The primary purpose of this Asian Pacific Space Geodynamics (APSG) session is to continue monitoring the relative motions of the plates in the Asia-Pacific region. This session involves nine sites on the three plates. Hobart-12m and Hobart-26m are on the Australian Plate, Seshan, Urumqi, Tsukuba, Chich10, Aira, and Sintotu3 are on the Eurasian Plate, and Kokee is on the Pacific Plate. Thus, this session will produce critical data for the investigation of the current crustal motions in the Asia-Pacific region combined with the data from the APSG SLR and GPS campaigns. Also, this experiment will improve the accuracy of the geocentric coordinates of the participating stations. =========================================================== ----- Parameter listing -------------------------------------- Experiment: APSG27 Description APSG Scheduler: NASA Correlator: WASH Start: 2010-349-18:00:00 End: 2010-350-18:00:00 Current yyyyddd: 2010349 (2010.96) ( 15546 MJD, WED. 15DEC.) Greenwich sidereal time: 23:37: 0.00 (18: 0: 0 UT) Sun's RA and DEC: 17h 32.3m -23d 17.1 =========================================================== There are no observations for Kokee from 18:15 U.T. to 19:45 U.T. Kokee will participate in the intensive session during this period. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Ai Cc Hb Kk S3 Sh Ts Ur 0727-115 10349-180000| 70 70 352 352 70 70 70| 1124-186 10349-180227| 112 102 112 102 70 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ai Cc Hb Kk S3 Sh Ts Ur 0727-115 10350-175515| 70 70 | 1424+366 10350-175640| 70 70 70 | 1244-255 10350-175721| 70 70 | 0059+581 10350-175833| 70 70| 1623+578 10350-175839| 70 70 70 | =========================================================== SKED Summary from file ./apsg27.skd for experiment APSG27 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 6.2 Min = 0.0 Max = 42.4 (Baseline Ts-Ur on 1759-396) RMS = 10.5 Total time: 1440 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Hb=HOBART12 Kk=KOKEE S3=SINTOTU3 Sh=SESHAN25 Ts=TSUKUB32 Ur=URUMQI Ai Cc Hb Kk S3 Sh Ts Ur Avg % obs. time: 51 51 32 40 52 48 47 42 45 % cal. time: 6 6 1 3 5 4 5 3 4 % slew time: 12 12 4 15 27 34 19 29 19 % idle time: 30 30 62 41 15 13 29 25 31 total # scans: 511 511 117 245 427 361 398 268 354 # scans/hour : 21 21 5 10 18 15 17 11 15 Avg scan (sec): 87 86 237 140 105 114 102 136 125 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total GBytes: 891 881 520 661 888 807 802 705 770 Total GB(M5): 792 784 462 588 789 717 713 627 684 # of tapes : 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 8.0 Total GBytes (M5) recorded: 5472.2 # OF OBSERVATIONS BY BASELINE | Ai Cc Hb Kk S3 Sh Ts Ur StnTotal -------------------------------------------------- Ai| 501 30 55 415 103 130 60 1294 Cc| 32 59 413 99 132 56 1292 Hb| 63 9 52 53 23 262 Kk| 41 117 184 80 599 S3| 57 95 38 1068 Sh| 260 246 934 Ts| 178 1032 Ur| 681 Number of 2-station scans: 278 Number of 3-station scans: 463 Number of 4-station scans: 86 Number of 5-station scans: 31 Number of 6-station scans: 38 Number of 7-station scans: 18 Number of 8-station scans: 5 Total # of scans, observations: 919 3581 =========================================================== Recording mode Name Code CDP-SX SX Recording mode setup for: AIRA CHICHI10 HOBART12 KOKEE SINTOTU3 SESHAN25 TSUKUB32 URUMQI Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 128.000 Mbits 64.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 1 16(*2) 32 0.00 X-band spanned bw= 360.0 MHz rms spanned bw= 140.2 MHz S-band spanned bw= 85.0 MHz rms spanned bw= 33.1 MHz Effective number of channels recorded per sub-pass X S Total 10.000 6.000 16.000 =========================================================== Minor Options Option Norm Wt Aux_Parm BegScan Rel 1.00 EndScan Rel 1.00 NumObs Rel 1.00 StatWt Abs 1.00 =========================================================== Major Options Subnet AiCcHbKkS3ShTsUr SkyCov Yes AllBlGood Yes MinAngle 15 MinBetween 30 MinSunDist 15 MaxSlewTime 300 TimeWindow 2.00 MinSubNetSize 2 NumSubNet 1 Best 50 FillIn Yes FillMinSub 3 FillMinTime 120 FillBest 80 Add_ps 30.0 SNRWts Yes =========================================================== Tape types ID Station Tape length Density Passes Ai AIRA K5 Cc CHICHI10 K5 Hb HOBART12 Mark5B Kk KOKEE Mark5A S3 SINTOTU3 K5 Sh SESHAN25 Mark5A Ts TSUKUB32 K5 Ur URUMQI Mark5A =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) Ai Cc Hb Kk S3 Sh Ts Ai Cc Hb Kk S3 Sh Ts Cc 0 Cc 0 Hb 20 20 Hb 15 15 Kk 20 20 20 Kk 15 15 15 S3 0 0 12 12 S3 0 0 10 10 Sh 20 20 20 20 12 Sh 15 15 15 15 10 Ts 20 20 20 20 12 20 Ts 15 15 15 15 10 15 Ur 20 20 20 20 12 20 20 Ur 15 15 15 15 10 15 15