Session Notes for APSG (Asian Pacific Space Geodynamics) session: apsg21 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, 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 APSG21 Experiment description: APSG Scheduler: NASA Correlator: Please see the master schedule Nominal start: 2007-283-17:30:00 Nominal end: 2007-284-17:30:00 Current yyyyddd: 2007283 (2007.78) ( 14384 MJD, WED. 10OCT.) Greenwich sidereal time: 18:45: 0.00 (17:30: 0 UT) Sun's RA and DEC: 13h 2.8m -6d 41.4 =========================================================== 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 Sh Ts Ur 0235+164 07283-173000| 70 70 70 70 70 70| =========================================================== Last observations Source Start DURATIONS CTA26 07284-171449| 71 75 70 70 70 75| 0454-234 07284-171839| 70 70 70 70 70 | 0607-157 07284-172141| 70 70 70 70 70 | 0727-115 07284-172455| 70 70 70 70 70 | OJ287 07284-172720| 70 70 70 | =========================================================== SKED Summary from file ./apsg21.skd for experiment APSG21 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 14.6 Min = 0.0 Max = 54.3 (Baseline Ho-Kk on 4C39.25 ) RMS = 13.6 Total time: 1439 minutes ( 24.0 hours). Key: Ho=HOBART26 Kk=KOKEE Pa=PARKES64 Sh=SESHAN25 Ts=TSUKUB32 Ur=URUMQI Ho Kk Pa Sh Ts Ur Avg % obs. time: 32 31 25 38 37 33 33 % cal. time: 4 4 4 5 5 4 4 % slew time: 40 20 56 39 20 30 35 % idle time: 24 43 15 17 37 31 28 total # scans: 359 357 304 435 449 363 377 # scans/hour : 15 15 13 18 19 15 16 Avg scan (sec): 76 76 71 75 70 79 74 # data tracks: 14 14 14 14 14 14 # Mk5 tracks: 16 16 16 16 16 16 Total GBytes: 487 482 387 582 567 510 503 Total GB(M5): 494 490 393 592 576 518 511 # of tapes : 0.0 0.0 3.2 0.0 0.0 0.0 tape change times (hhmm): 0000 0000 0118 0000 0000 0000 0000 0000 0852 0000 0000 0000 0000 0000 1618 0000 0000 0000 Total number of tapes: 3.4 Total GBytes (M5) recorded: 3063.8 # OF OBSERVATIONS BY BASELINE | Ho Kk Pa Sh Ts Ur StnTotal ---------------------------------------- Ho| 165 282 186 200 114 947 Kk| 129 269 309 202 1074 Pa| 128 138 77 754 Sh| 407 342 1332 Ts| 320 1374 Ur| 1055 Number of 2-station scans: 206 Number of 3-station scans: 123 Number of 4-station scans: 198 Number of 5-station scans: 92 Number of 6-station scans: 39 Total # of scans, observations: 658 3268 =========================================================== Recording mode Name Code CDP-SX SX Recording mode setup for: HOBART26 KOKEE SESHAN25 TSUKUB32 URUMQI 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 0.01 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 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 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) Ho Kk Pa Sh Ts Ho Kk Pa Sh Ts Kk 20 Kk 15 Pa 20 20 Pa 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