Session Notes for APSG (Asian Pacific Space Geodynamics) session: apsg38 Prepared by Fengchun Shu, Shanghai Astronomical Observatory =========================================================== 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-12m, Katherine, Warkworth, and Yarragadee are on the Australian Plate. 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: APSG38 Description APSG Scheduler: SHAO Correlator: SHAO Start: 2016-208-17:30:00 End: 2016-209-17:30:00 Current yyyyddd: 2016208 (2016.57)( 17596 MJD, TUES 26 JUL.) Greenwich sidereal time: 13:49:21 (17:30:00 UT) Sun's RA and DEC: 8h 25.9m 19d 13.1 =========================================================== 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. Ishioka is tagged along to this session, suggested by Cynthia Thomas. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Is Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ww Yg 0059+581 16208-173000| 58 40 49 77 40 40 49 77 40 40 40 | 1057-797 16208-173000| 181 181| 0544+273 16208-173214| 83 83 83 49 | 0003-066 16208-173236| 97 51 93 97 40 78 | 2052-474 16208-173446| 40 40 40| CTA26 16208-173455| 184 40 296 210 132 148 210 40 296 | =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Is Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ww Yg CTA26 16209-172431| 95 95 95 | NRAO150 16209-172520| 40 40 40 40 | 0537-441 16209-172642| 41 41 | 2052-474 16209-172700| 124 40 40 124| 0454+844 16209-172714| 121 121 101 121 | =========================================================== SKED Summary from file ./apsg38.skd for experiment APSG38 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 5.8 Min = 0.0 Max = 65.5 (Baseline Kk-Ur on 1921-293) RMS = 10.8 Total time: 1439 minutes ( 24.0 hours). Key: Is=ISHIOKA Kb=KASHIM34 K1=KASHIM11 Ke=KATH12M Kk=KOKEE Km=KUNMING Kg=KOGANEI Kv=SEJONG Sh=SESHAN25 Ts=TSUKUB32 Ur=URUMQI Ww=WARK12M Yg=YARRA12M Is Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ww Yg Avg % obs. time: 60 39 41 58 44 39 49 52 46 34 45 51 51 47 % cal. time: 4 6 3 4 4 5 4 3 5 6 5 3 3 4 % slew time: 7 38 9 10 21 33 10 6 32 20 30 10 9 19 % idle time: 28 17 46 27 30 22 36 38 16 40 20 35 35 30 total # scans: 373 484 276 314 324 459 309 300 433 529 395 279 279 365 # scans/hour : 16 20 12 13 14 19 13 13 18 22 16 12 12 15 Avg scan (sec): 139 69 127 161 117 73 137 150 92 55 97 157 159 117 # data tracks: 16 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 16 Total TB(M5): 0.9 0.6 0.6 0.9 0.7 0.6 0.7 0.8 0.7 0.5 0.7 0.7 0.8 0.7 # OF OBSERVATIONS BY BASELINE | Is Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ww Yg Total --------------------------------------------------------------------------- Is| 269 172 122 132 199 202 189 227 281 172 78 78 2121 Kb| 190 113 180 309 201 175 342 456 259 69 68 2631 K1| 101 92 117 197 183 138 190 98 67 61 1606 Ke| 85 116 122 115 124 120 82 169 205 1474 Kk| 122 119 102 151 205 118 126 43 1475 Km| 138 143 361 323 342 59 93 2322 Kg| 233 161 204 121 72 73 1843 Kv| 165 192 134 62 71 1764 Sh| 356 310 66 84 2485 Ts| 270 77 72 2746 Ur| 32 54 1992 Ww| 168 1045 Yg| 1070 Number of 2-station scans: 300 Number of 3-station scans: 248 Number of 4-station scans: 121 Number of 5-station scans: 94 Number of 6-station scans: 100 Number of 7-station scans: 52 Number of 8-station scans: 22 Number of 9-station scans: 39 Number of 10-station scans: 21 Number of 11-station scans: 30 Number of 12-station scans: 30 Number of 13-station scans: 5 Total number of scans: 1062 Total number of obs: 12287 Total integrated obs-time: 999416 Average obs-time: 81.3 Histogram of observation durations Dur: 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 #Obs: | 7715| 995| 786| 474| 363| 376| 329| 207| 162| 114| 288| 93| 91| 91| 73| 38| 42| 50| Average X-band SNRs by baseline | Is Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ww Yg AVG -------------------------------------------------------------------------- Is| 92 45 48 48 74 56 61 83 119 73 44 40 72 Kb| 60 60 65 117 77 81 124 185 104 56 55 107 K1| 23 30 49 29 31 54 79 49 23 22 44 Ke| 31 57 29 34 59 79 48 33 34 44 Kk| 46 35 34 56 80 45 33 29 49 Km| 61 67 116 149 102 46 52 95 Kg| 38 67 101 58 27 26 54 Kv| 72 105 66 34 31 58 Sh| 159 107 51 54 99 Ts| 134 76 73 128 Ur| 47 45 89 Ww| 29 39 Yg| 39 Average S-band SNRs by baseline | Is Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ww Yg AVG -------------------------------------------------------------------------- Is| 34 25 15 24 25 24 19 21 36 19 15 14 25 Kb| 53 29 52 63 49 39 51 90 44 29 29 54 K1| 18 37 38 30 23 33 59 28 21 20 34 Ke| 23 30 18 15 21 32 20 17 18 21 Kk| 35 33 24 31 53 27 25 23 35 Km| 36 31 47 67 47 25 29 45 Kg| 22 30 55 27 18 17 32 Kv| 25 42 23 16 15 26 Sh| 54 34 19 21 37 Ts| 47 32 32 56 Ur| 17 20 35 Ww| 18 21 Yg| 21 =========================================================== Recording mode Name Code CDP-SX SX Recording mode for: ISHIOKA KASHIM34 KASHIM11 KATH12M KUNMING KOGANEI SEJONG SESHAN25 TSUKUB32 URUMQI WARK12M 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 IsKbK1KeKkKmKgKvShTsUrWwYg 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 Is ISHIOKA K5 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 Ww WARK12M 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) Is Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ww Is Kb K1 Ke Kk Km Kg Kv Sh Ts Ur Ww 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 Ww 20 20 20 20 20 20 20 20 20 20 20 Ww 15 15 15 15 15 15 15 15 15 15 15 Yg 20 20 20 20 20 20 20 20 20 20 20 20 Yg 15 15 15 15 15 15 15 15 15 15 15 15