Session Notes for APSG (Asian Pacific Space Geodynamics) session: apsg16 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 four plates. Fairbanks is on the North American Plate, Hobart is on the Australian Plate, Seshan and Urumqi 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 APSG16 Experiment description: APSG Scheduler: NASA Correlator: Please see master schedule Nominal start: 2005-284-17:30:00 Nominal end: 2005-285-17:30:00 Current yyyyddd: 2005284 (2005.78) ( 13655 MJD, TUES 11OCT.) Greenwich sidereal time: 18:51:36.00 (17:30: 0 UT) Sun's RA and DEC: 13h 8.3m -7d 15.0 =========================================================== 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 Gc Ho Kk Sh Ts Ur 0003-066 05284-173000| 80 70 80| 0235+164 05284-173000| 94 94 71 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Gc Ho Kk Sh Ts Ur 0743+259 05285-170905| 143 143 70 | 0955+476 05285-171226| 70 70 70 70 70| 0528+134 05285-171608| 154 70 154 70 70| OQ208 05285-172102| 70 70 | 1156+295 05285-172256| 153 153 | =========================================================== SKED Summary from file ./apsg16.skd for experiment APSG16 (all scans with at least one subnet station) Average number of obs. per baseline per source (normalized by up-time) = 8.6 Min = .0 Max = 38.9 (Baseline Kk-Ur on 1519-273) RMS = 8.5 Total time: 1436 minutes ( 23.9 hours). Key: Gc=GILCREEK Ho=HOBART26 Kk=KOKEE Sh=SESHAN25 Ts=TSUKUB32 Ur=URUMQI Gc Ho Kk Sh Ts Ur Avg % obs. time: 43 25 44 48 31 45 39 % cal. time: 4 2 4 3 4 3 3 % slew time: 20 31 16 37 17 22 24 % idle time: 33 41 35 10 47 29 33 total # scans: 329 190 326 272 369 265 291 # scans/hour : 13.7 7.9 13.6 11.4 15.4 11.1 12.2 Avg scan (sec): 111 113 117 153 72 146 118 Total GBytes: 719 422 744 399 547 745 596 Total GB(M5): 639 375 661 354 486 662 530 # of tapes : 1.3 .7 1.2 .6 .9 1.2 tape change times (hhmm): 1216 0000 1436 0000 0000 1343 Total number of tapes: 6.0 Total GBytes (M5) recorded: 3177.9 # OF OBSERVATIONS BY BASELINE | Gc Ho Kk Sh Ts Ur StnTotal -------------------------------------- Gc|329 52 256 186 248 189 931 Ho| 190 110 88 136 65 451 Kk| 326 159 223 139 887 Sh| 272 256 222 911 Ts| 369 226 1089 Ur| 265 841 Number of 2-station scans: 187 Number of 3-station scans: 80 Number of 4-station scans: 103 Number of 5-station scans: 121 Number of 6-station scans: 20 Total # of scans, observations: 511 2555 =========================================================== Recording mode Name Code CDP-SX SX Recording mode setup for: GILCREEK Mode Tot.Rate Tot.BandW #chan #bits Barrel VLBA1:2 128.000 Mbits 64.000 MHz 14 1 8:1 Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 1 16(*2) 32 80.00 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: 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 80.00 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 80.00 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: SESHAN25 Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:4 64.000 Mbits 32.000 MHz 8 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 4.00 MHz 1 4(*4) 16 40.00 X-band spanned bw= 330.0 MHz rms spanned bw= 129.7 MHz S-band spanned bw= 75.0 MHz rms spanned bw= 29.8 MHz Effective number of channels recorded per sub-pass X S Total 4.000 4.000 8.000 =========================================================== 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 Gc GILCREEK 17400feet (Thin ) 56700 (HIGH ) 12 Ho HOBART26 17400feet (Thin ) 56250 (HIGH ) 14 Kk KOKEE 17400feet (Thin ) 56250 (HIGH ) 14 Sh SESHAN25 17400feet (Thin ) 56250 (HIGH ) 14 Ts TSUKUB32 17400feet (Thin ) 56250 (HIGH ) 14 Ur URUMQI 17400feet (Thin ) 56250 (HIGH ) 14 =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) Gc Ho Kk Sh Ts Gc Ho Kk Sh Ts Ho 20 Ho 15 Kk 20 20 Kk 15 15 Sh 20 20 20 Sh 15 15 15 Ts 20 20 20 20 Ts 15 15 15 15 Ur 20 20 20 20 20 Ur 15 15 15 15 15