Session Notes for APSG (Asian Pacific Space Geodynamics) session: apsg18 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 five sites on the three plates. Hobart and Parkes are on the Australian Plate, Urumqi and Tsukuba 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 APSG18 Experiment description: APSG Scheduler: NASA Correlator: Please see the master schedule Nominal start: 2006-255-17:30:00 Nominal end: 2006-256-17:30:00 Current yyyyddd: 2006255 (2006.70) ( 13991 MJD, TUES 12SEP.) Greenwich sidereal time: 16:56:19.00 (17:30: 0 UT) Sun's RA and DEC: 11h 22.5m 4d 2.1 =========================================================== Important Station Information Parkes is recording on tape in Mode C, double speed. =========================================================== 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 Ho Kk Pa Ts Ur 0235+164 06255-173000| 70 70 70 70 70| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ho Kk Pa Ts Ur 0104-408 06256-172130| 70 70 | 1803+784 06256-172159| 70 70 70| 0602+673 06256-172358| 70 70 | 4C39.25 06256-172601| 70 70 | 3C446 06256-172654| 70 70| 0743+259 06256-172755| 70 70 | =========================================================== SKED Summary from file ./apsg18.skd for experiment APSG18 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 15.1 Min = .0 Max = 48.8 (Baseline Ts-Ur on 1954-388) RMS = 11.2 Total time: 1439 minutes ( 24.0 hours). Key: Ho=HOBART26 Kk=KOKEE Pa=PARKES64 Ts=TSUKUB32 Ur=URUMQI Ho Kk Pa Ts Ur Avg % obs. time: 33 34 22 35 32 31 % cal. time: 4 4 3 5 3 4 % slew time: 43 14 54 19 25 31 % idle time: 20 47 19 40 38 33 total # scans: 318 305 271 413 275 316 # scans/hour : 13.3 12.7 11.3 17.2 11.5 13.2 Avg scan (sec): 90 98 72 73 102 86 Total GBytes: 571 591 348 617 554 536 Total GB(M5): 507 525 354 548 492 485 # of tapes : .1 .1 2.9 .1 .1 tape change times (hhmm): 0000 0000 0218 0000 0000 0000 0000 1038 0000 0000 Total number of tapes: 3.2 Total GBytes (M5) recorded: 2426.7 # OF OBSERVATIONS BY BASELINE | Ho Kk Pa Ts Ur StnTotal ---------------------------------- Ho|318 168 258 229 124 779 Kk| 305 134 275 159 736 Pa| 271 179 88 659 Ts| 413 262 945 Ur| 275 633 Number of 2-station scans: 185 Number of 3-station scans: 153 Number of 4-station scans: 137 Number of 5-station scans: 41 Total # of scans, observations: 516 1876 =========================================================== Recording mode Name Code CDP-SX SX Recording mode setup for: HOBART26 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 .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 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 .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: PARKES Mode Tot.Rate Tot.BandW #chan #bits Barrel C 112.000 Mbits 56.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 2 14(*0) 28 270.00 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 8.000 6.000 14.000 =========================================================== 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 Ho HOBART26 Mark5A Kk KOKEE Mark5A Pa PARKES 8700feet (Thick ) 33333 (Low ) 12 Ts TSUKUB32 Mark5A Ur URUMQI Mark5A =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) Ho Kk Pa Ts Ho Kk Pa Ts Kk 20 Kk 15 Pa 20 20 Pa 15 15 Ts 20 20 20 Ts 15 15 15 Ur 20 20 20 20 Ur 15 15 15 15