Session Notes for APSG (Asian Pacific Space Geodynamics) session: apsg23 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 six sites on the three plates. Hobart and Parkes are on the Australian Plate, Seshan, Aira, Urumqi, Tsukuba, Chich10, 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, especially Urumqi. =========================================================== Parameter values for experiment APSG23 Experiment description: APSG Scheduler: NASA Correlator: Please see the master schedule. Nominal start: 2008-282-18:00:00 Nominal end: 2008-283-18:00:00 Current yyyyddd: 2008282 (2008.77) ( 14748 MJD, WED. 8OCT.) Greenwich sidereal time: 19:10: 0.00 (18: 0: 0 UT) Sun's RA and DEC: 12h 58.3m -6d 13.6 =========================================================== 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 0537-441 08282-180000| 70 70 70 70 70 70 70 | 0552+398 08282-180304| 70 70 75 101 70 70 101| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ai Cc Ho Kk Pa S3 Sh Ts Ur 0208-512 08283-174137| 70 70 70 70 | 2356+385 08283-174337| 70 70 70 | 2358+189 08283-174424| 81 70 81| 1144-379 08283-174529| 70 70 | 0119+115 08283-174642| 70 70 229 168 70 229| 0133+476 08283-174840| 70 70 70 70 | OJ287 08283-175230| 207 195 207 133 152 70 | 1013+054 08283-175521| 70 70 | =========================================================== SKED Summary from file ./apsg23.skd for experiment APSG23 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 8.1 Min = 0.0 Max = 48.0 (Baseline Cc-Ur on 0104-408) RMS = 9.0 Total time: 1437 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 49 41 36 28 35 43 37 43 40 % cal. time: 5 5 4 3 3 4 4 5 3 4 % slew time: 12 12 38 17 52 26 33 20 26 27 % idle time: 33 33 16 42 17 34 19 38 26 29 total # scans: 410 409 309 291 235 314 349 425 276 335 # scans/hour : 17 17 13 12 10 13 15 18 12 14 Avg scan (sec): 103 104 115 108 101 96 105 74 134 104 # data tracks: 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 Total GBytes: 836 841 693 616 469 600 725 645 716 682 Total GB(M5): 744 748 616 547 417 533 645 574 637 607 # of tapes : 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 tape change times (hhmm): Total number of tapes: 0.6 Total GBytes (M5) recorded: 5459.7 # OF OBSERVATIONS BY BASELINE | Ai Cc Ho Kk Pa S3 Sh Ts Ur StnTotal ------------------------------------------------------- Ai| 378 100 85 69 253 180 214 105 1384 Cc| 110 92 74 252 166 222 95 1389 Ho| 163 212 9 140 145 101 980 Kk| 114 51 118 189 85 897 Pa| 6 102 114 62 753 S3| 72 121 52 816 Sh| 268 230 1276 Ts| 187 1460 Ur| 917 Number of 2-station scans: 272 Number of 3-station scans: 302 Number of 4-station scans: 76 Number of 5-station scans: 68 Number of 6-station scans: 72 Number of 7-station scans: 54 Number of 8-station scans: 12 Number of 9-station scans: 2 Total # of scans, observations: 858 4936 =========================================================== 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 SkyCov Yes Min_Between 30 Best% 50.0 Last_Hrs 2.00 Add_ps 30.00 Obs_Wts SNRwt =========================================================== Tape types ID Station Tape length Density Passes Ai AIRA Mark5A Cc CHICHI10 Mark5A Ho HOBART26 Mark5A Kk KOKEE Mark5A Pa PARKES Mark5A S3 SINTOTU3 Mark5A Sh SESHAN25 Mark5A Ts TSUKUB32 Mark5A 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