Session Notes for APSG (Asian Pacific Space Geodynamics) session: apsg25 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 and Parkes are on the Australian Plate, Seshan, Urumqi, Tsukuba, Chich10, Aira, and Sintotu3 are on the Eurasian Plate, 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, especially Urumqi. =========================================================== ----- Parameter listing -------------------------------------- Experiment: APSG25 Description APSG Scheduler: NASA Correlator: WACO Start: 2009-287-18:00:00 End: 2009-288-18:00:00 Current yyyyddd: 2009287 (2009.79) ( 15119 MJD, WED. 14OCT.) Greenwich sidereal time: 19:33: 0.00 (18: 0: 0 UT) Sun's RA and DEC: 13h 19.6m -8d 23.4 =========================================================== Important Station Information Seshan was tagged along to this schedule file because it is uncertain if Seshan will be operational during this session. =========================================================== 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 Ho Kk Pa S3 Sh Ts Ur 0727-115 09287-180000| 70 70 74 70 70 74 70 70 | 0805+410 09287-180237| 70 70 116 126 79 70 126| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ai Cc Ho Kk Pa S3 Sh Ts Ur 0346-279 09288-175149| 70 70| 0727-115 09288-175610| 70 70 74 70 70 74 70 70 | =========================================================== SKED Summary from file ./apsg25.skd for experiment APSG25 (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 = ****** (Baseline Ai-S3 on 0059+581) RMS = 293.0 Total time: 1438 minutes ( 24.0 hours). Key: Ai=AIRA Cc=CHICHI10 Ho=HOBART26 Kk=KOKEE Pa=PARKES64 S3=SINTOTU3 Sh=SESHAN25 Ts=TSUKUB32 Ur=URUMQI Ai Cc Ho Kk Pa S3 Sh Ts Ur Avg % obs. time: 49 50 45 37 30 41 29 38 36 39 % cal. time: 5 5 3 3 3 4 3 5 3 4 % slew time: 13 13 34 16 50 27 23 20 24 25 % idle time: 32 32 17 43 17 27 44 36 36 32 total # scans: 439 437 282 278 220 336 247 408 250 321 # scans/hour : 18 18 12 12 9 14 10 17 10 13 Avg scan (sec): 97 98 139 114 116 106 102 81 125 108 # data tracks: 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 Total GBytes: 845 851 754 619 500 699 497 669 605 671 Total GB(M5): 751 756 671 550 445 621 442 595 538 597 # of tapes : 0.1 0.1 1.0 1.0 1.0 0.1 1.0 0.1 1.0 tape change times (hhmm): Total number of tapes: 5.3 Total GBytes (M5) recorded: 5368.6 # OF OBSERVATIONS BY BASELINE | Ai Cc Ho Kk Pa S3 Sh Ts Ur StnTotal ------------------------------------------------------- Ai| 415 133 129 107 306 162 230 134 1616 Cc| 143 139 116 302 154 233 123 1625 Ho| 166 203 71 166 175 117 1174 Kk| 130 83 135 227 93 1102 Pa| 47 126 143 77 949 S3| 105 145 100 1159 Sh| 211 171 1230 Ts| 216 1580 Ur| 1031 Number of 2-station scans: 189 Number of 3-station scans: 264 Number of 4-station scans: 62 Number of 5-station scans: 46 Number of 6-station scans: 54 Number of 7-station scans: 66 Number of 8-station scans: 32 Number of 9-station scans: 23 Total # of scans, observations: 736 5733 =========================================================== Recording mode Name Code CDP-SX SX Recording mode setup for: AIRA CHICHI10 HOBART26 SINTOTU3 SESHAN25 TSUKUB32 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 Recording mode setup for: KOKEE PARKES URUMQI Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 128.000 Mbits 64.000 MHz 14 1 16 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 =========================================================== Major Options Subnet AiCcHoKkPaS3ShTsUr 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 Ho HOBART26 Mark5A Kk KOKEE Mark5A Pa PARKES 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 Ho Kk Pa S3 Sh Ts Ai Cc Ho Kk Pa S3 Sh Ts Cc 0 Cc 0 Ho 20 20 Ho 15 15 Kk 20 20 20 Kk 15 15 15 Pa 20 20 20 20 Pa 15 15 15 15 S3 0 0 12 12 12 S3 0 0 10 10 10 Sh 20 20 20 20 20 12 Sh 15 15 15 15 15 10 Ts 20 20 20 20 20 12 20 Ts 15 15 15 15 15 10 15 Ur 20 20 20 20 20 12 20 20 Ur 15 15 15 15 15 10 15 15