Session Notes for APSG (Asian Pacific Space Geodynamics) session: apsg36 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 twelve sites on the four plates. Hobart-26m, Katherine, and Yarragadee are on the Australian Plate. Seshan, Urumqi, Tsukuba, Kunming, and Sejong are on the Eurasian Plate. Kokee is on the Pacific Plate. Kashima-34m, Kashima-11m, and Koganei are on the North America 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. =========================================================== ----- Parameter listing -------------------------------------- Experiment: APSG36 Description APSG Scheduler: NASA Correlator: tbd Start: 2015-244-17:30:00 End: 2015-245-17:30:00 Current yyyyddd: 2015244 (2015.67) ( 17267 MJD, TUES 1SEP.) Greenwich sidereal time: 16:12:14 (17:30:00 UT) Sun's RA and DEC: 10h 42.3m 8d 12.4 =========================================================== 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 Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Yg 0003-066 15244-173000| 70 90 70 88 85 70 70 90 | 0834-201 15244-173000| 70 70 | 0229+131 15244-173239| 70 70 70 | 0454-234 15244-173407| 70 70 98 77 70 70 103 70 103| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ho Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Yg 0003-066 15245-172455| 70 123 123| NRAO150 15245-172517| 70 70 70 70 70 | 1923+210 15245-172724| 99 99 | 0743+277 15245-172753| 111 111 93 | DA426 15245-172753| 70 70 | 0308-611 15245-172822| 98 98 | =========================================================== SKED Summary from file ./apsg36.skd for experiment APSG36 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 4.9 Min = 0.0 Max = 61.7 (Baseline Kk-Km on 1424-418) RMS = 10.2 Total time: 1440 minutes ( 24.0 hours). Key: Ho=HOBART26 Kb=KASHIM34 K1=KASHIM11 Ke=KATH12M Kk=KOKEE Km=KUNMING Kg=KOGANEI Kv=SEJONG Sh=SESHAN25 Ts=TSUKUB32 Ur=URUMQI Yg=YARRA12M Ho Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Yg Avg % obs. time: 44 44 46 49 43 44 57 54 49 43 46 47 47 % cal. time: 4 5 3 3 3 5 3 3 5 5 4 3 4 % slew time: 41 33 8 10 15 30 8 5 29 16 25 9 20 % idle time: 10 17 43 37 38 20 30 37 16 35 24 40 29 total # scans: 335 440 249 292 276 433 291 277 410 462 317 270 337 # scans/hour : 14 18 10 12 12 18 12 12 17 19 13 11 14 Avg scan (sec): 113 86 158 145 133 88 169 168 102 80 126 151 126 # data tracks: 16 16 16 16 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 16 16 16 16 Total TB(M5): 0.7 0.7 0.7 0.7 0.6 0.7 0.8 0.8 0.7 0.7 0.7 0.7 0.7 # OF OBSERVATIONS BY BASELINE | Ho Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Yg Total ---------------------------------------------------------------------- Ho| 143 87 194 117 134 114 108 149 148 90 175 1459 Kb| 169 112 171 300 207 184 325 414 174 83 2282 K1| 90 106 126 179 169 148 176 93 66 1409 Ke| 75 104 103 93 116 117 71 192 1267 Kk| 132 128 106 158 180 114 46 1333 Km| 160 165 330 300 263 88 2102 Kg| 202 183 214 130 80 1700 Kv| 189 188 144 76 1624 Sh| 328 207 89 2222 Ts| 177 85 2327 Ur| 67 1530 Yg| 1047 Number of 2-station scans: 377 Number of 3-station scans: 195 Number of 4-station scans: 84 Number of 5-station scans: 59 Number of 6-station scans: 55 Number of 7-station scans: 28 Number of 8-station scans: 47 Number of 9-station scans: 49 Number of 10-station scans: 27 Number of 11-station scans: 35 Number of 12-station scans: 7 Total number of scans: 963 Total number of obs: 10151 Total integrated obs-time: 943433 Average obs-time: 92.9 Histogram of observation durations Dur: 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 #Obs: | 7686| 505| 354| 383| 326| 151| 147| 107| 112| 84| 60| 49| 40| 17| 61| 21| 48 Average X-band SNRs by baseline | Ho Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Yg AVG --------------------------------------------------------------------- Ho| 102 35 54 45 97 41 42 95 132 61 50 71 Kb| 76 80 79 143 86 95 160 237 106 70 132 K1| 25 29 58 32 33 63 95 42 23 51 Ke| 33 81 32 36 77 105 50 34 56 Kk| 57 35 36 66 99 41 29 56 Km| 68 78 147 190 101 75 115 Kg| 41 76 113 51 27 60 Kv| 85 126 55 31 65 Sh| 212 105 68 122 Ts| 142 90 160 Ur| 45 83 Yg| 49 Average S-band SNRs by baseline | Ho Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Yg AVG --------------------------------------------------------------------- Ho| 68 38 31 47 62 33 26 45 74 35 33 45 Kb| 65 43 65 80 55 44 64 112 52 42 70 K1| 23 40 49 32 24 39 68 30 23 42 Ke| 28 40 21 17 28 47 23 18 29 Kk| 46 36 28 38 69 32 26 45 Km| 44 37 59 89 51 43 60 Kg| 23 34 60 28 20 38 Kv| 29 49 24 17 31 Sh| 71 37 29 48 Ts| 58 45 74 Ur| 23 39 Yg| 29 =========================================================== Recording mode Name Code CDP-SX SX Recording mode for: HOBART26 KASHIM34 KASHIM11 KATH12M KUNMING KOGANEI SEJONG SESHAN25 TSUKUB32 URUMQI YARRA12M Mode Tot.Rate Tot.BandW #BBC #bits Barrel Mk341:2 128 Mbits 64 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks 4.00 MHz 1 16(*2) 32 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 1-bit channels recorded per sub-pass X S Total 10.00 6.00 16.00 Recording mode for: KOKEE Mode Tot.Rate Tot.BandW #BBC #bits Barrel Mk341:1 128 Mbits 64 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks 4.00 MHz 1 16(*1) 16 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 1-bit channels recorded per sub-pass X S Total 10.00 6.00 16.00 =========================================================== Minor Options BegScan Rel 1.00 EndScan Rel 1.00 NumObs Rel 1.00 StatWt Abs 5.00 =========================================================== Major Options Subnet HoKbK1KeKkKmKgKvShTsUrYg SkyCov Yes AllBlGood Yes MaxAngle 180.00 MinAngle 15.00 MinBetween 15 MinSunDist 5.00 MaxSlewTime 300 TimeWindow 2.00 MinSubNetSize 2 NumSubNet 1 Best 60 FillIn Yes FillMinSub 3 FillMinTime 120 FillBest 80 Add_ps 30.0 SNRWts Yes =========================================================== Tape types ID Station Tape length Density Passes Ho HOBART26 Mark5B Kb KASHIM34 K5 K1 KASHIM11 K5 Ke KATH12M Mark5B Kk KOKEE Mark5B Km KUNMING Mark5B Kg KOGANEI K5 Kv SEJONG K5 Sh SESHAN25 Mark5B Ts TSUKUB32 K5 Ur URUMQI Mark5B Yg YARRA12M Mark5B =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) X-band (ast_margin 0) S-band (ast_margin 0) Ho Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ho Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Kb 20 Kb 15 K1 20 20 K1 15 15 Ke 20 20 20 Ke 15 15 15 Kk 20 20 20 20 Kk 15 15 15 15 Km 20 20 20 20 20 Km 15 15 15 15 15 Kg 20 20 20 20 20 20 Kg 15 15 15 15 15 15 Kv 20 20 20 20 20 20 20 Kv 15 15 15 15 15 15 15 Sh 20 20 20 20 20 20 20 20 Sh 15 15 15 15 15 15 15 15 Ts 20 20 20 20 20 20 20 20 20 Ts 15 15 15 15 15 15 15 15 15 Ur 20 20 20 20 20 20 20 20 20 20 Ur 15 15 15 15 15 15 15 15 15 15 Yg 20 20 20 20 20 20 20 20 20 20 20 Yg 15 15 15 15 15 15 15 15 15 15 15