APSG-13 (Asian Pacific Space Geodynamics-13) 2003 October 21 Notes prepared by Dr. Guangli Wang, SHA/CAS Cynthia Thomas, NVI/GSFC Schedule name: APSG13.SKD on CDDISA Nominal Start: 17:30 U.T. on October 21(day 294) first observation at 17:30 U.T. on 0014+813 for GC-KK-TS first observation at 17:30 U.T. on 0229+131 for HO-SH-UR Duration: 24 hours Nominal Stop: 17:30 U.T. on October 22(day 295) last observation at 17:24 U.T. on 1144-379 for HO-KK last observation at 17:27 U.T. on 2145+067 for SH-UR last observation at 17:27 U.T. on 0556+238 for GC-TS Correlator: Washington **Frequency Sequence**: CDPSX - Standard CDP SX sequence. (360 MHz wide at X, 85 MHz wide at S) 1 letter 2 letter Station Code Code # of tapes # of obs Occupation Code Fairbanks A GC 1 (TT) 337 40476601 Hobart H HO 2 (TT) 161 72425901 Kokee K KK 1 (TT) 364 72983001 Seshan C SH 1 (TT) 240 72336101 Tsukuba T TS 1 (TT) 390 73452301 Urumqi U UR 3 (TT) 244 73303201 Purpose ======= 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. Schedule ======== This is a new schedule generated by Dr. G. Wang with the automatic mode of sked. The following are the characteristics of the schedule: 1) This schedule was optimized for sky coverage. 2) Only the observations in the previous two hours of the schedule were considered for the minor options. The best 50% of the configurations were considered for minor options. 3) The "minor options" were set to select observations to maximize the total number of observations, to minimize the idle time between scans, and to minimize time between scans on the same source by thirty minutes. 5) The minimum SNR limits for all baselines were set to 20 for X-band and 15 for S-band. The schedule was made using the full sub-netting mode of sked. This resulted in fewer scans at each station but more observations because there were more scans with more stations. Correlation ========== This experiment will be correlated at the Washington Correlator with all baselines being correlated. SKED Summary from file ./apsg13.skd for experiment APSG13 (all scans with at least one subnet station) SOURCE |0 3 6 9 12 15 18 21 | #SCANS #OBS #Obs/bl 0003-066I x x R S x x I 4 6 1.1 0014+813IS x I 1 3 .3 0048-097IS x x x x I 4 4 .6 0059+581IS x x x x x x x x x x x x x x x x x I 17 132 14.2 0104-408IS x x x I 3 5 .9 0106+013I x x x x x Rx x x S x x x I 11 71 10.6 0111+021I R S I 0 0 .0 0119+115I x x x R x S x x x I 7 7 .9 0119+041I x x R xS I 3 5 .7 0133+476IS x x x x x x x x x x x x x x x xI 16 105 12.4 0201+113I R x S x I 2 4 .5 0202+149I x x x x x Rx x x x x S x x I 12 102 13.7 0208-512IS x x x x x x I 6 6 .8 0229+131I R S x I 1 3 .5 0235+164I R S x x I 2 4 .5 CTA26 I x x x x Rx x S x x x x I 11 81 12.6 0402-362IS x x I 2 2 .5 0405-385IS x x x I 3 8 1.6 0434-188IS I 0 0 .0 0454-234IS x x x x x x x x x x x I 11 44 9.2 0458-020I R S x x I 2 4 .6 0454+844IS I 0 0 .0 0530-727IS I 0 0 .0 0528+134I x x x x x x x x R x x x x S x x I 15 41 5.0 0537-441IS x x x x x x I 6 8 1.4 0552+398IS x x x x x x x x x x x x x x x x x x x x xI 21 121 15.3 0556+238I x R x x S I 3 3 .3 0602+673IS x x x I 3 7 .7 0607-157IS x x x x x I 5 34 7.6 0637-752IS I 0 0 .0 0642+449IS I 0 0 .0 0656+082I x R x x S I 3 3 .4 0718+793IS x x x I 3 9 .8 0727-115IS x x x x x x x I 7 37 9.0 0743+259I x x x x x R x S x I 7 11 1.1 0749+540IS x x x x I 4 8 .8 0804+499IS x x I 2 2 .2 0805+410IS I 0 0 .0 0808+019Ix x x R S x x I 5 5 .8 0823+033I x x x x R x xS x I 8 18 2.5 OJ287 I x x x x x x Rx x x xS I 10 59 7.5 4C39.25 IS x x x x x x x x x x x x x x x x x x x xI 20 123 15.0 OK290 I S R I 0 0 .0 0955+476IS x x x x I 4 23 2.7 1034-293IS x x x x x I 5 5 1.1 1044+719IS x x x x x x x x I 8 44 4.2 1053+815IS x x x I 3 9 .8 1057-797IS I 0 0 .0 1101+384I S R I 0 0 .0 1104-445IS I 0 0 .0 1124-186IS x x x x x I 5 11 2.1 1128+385I S x x x x x x x x R I 8 19 1.7 1144-379IS x x x x x I 5 5 .7 1156+295Ix x x S x x x x x x x R x x I 13 103 13.5 1219+044I S x R I 2 2 .3 3C274 I S x x xR x I 5 13 1.6 1255-316IS x I 1 3 .6 1300+580IS x x x x x I 5 36 4.0 1302-102IS I 0 0 .0 1334-127IS I 0 0 .0 1351-018I R S I 0 0 .0 1357+769IS x x x x x x x x I 8 80 7.3 OQ208 I x S x x x x x x x x R I 9 24 2.5 1418+546IS x I 1 1 .1 1417+385I R S x x x x I 4 6 .5 1424-418IS x x x I 3 7 1.4 1451-375IS x x x x x x x xI 8 14 2.6 1519-273IS x x x x x x x x x x x x xI 13 54 11.5 1606+106I x x xR x x x x xS x x x x x x x xI 16 126 17.3 1610-771IS I 0 0 .0 1622-253IS I 0 0 .0 NGC6251 IS I 0 0 .0 NRAO512 IS x x x x x I 5 17 2.0 DA426 IS x I 1 1 .1 1726+455IS x x x x I 4 10 1.1 1739+522IS x x x x x x x x x x x x x I 14 102 11.7 1741-038Ix x x x R x Sx x x x x x x x I 14 90 14.4 1745+624IS x I 1 1 .1 1749+096I x R x S x x x I 5 23 3.1 1803+784IS x x x x x x x I 7 70 6.4 3C371 IS x x x x x x x I 7 36 3.5 1815-553IS I 0 0 .0 1908-201IS x x x x x x I 6 6 1.4 1920-211IS I 0 0 .0 1921-293IS x x x x x I 5 9 2.5 1923+210Ix x x x x R x x x x x x S x x x x x I 16 40 4.4 1954-388IS x x x I 3 5 .9 1958-179IS x I 1 1 .2 2005-489IS x x I 2 4 .9 3C418 ISx x x x x x x x x I 9 40 4.4 2052-474IS I 0 0 .0 2113+293I R S I 0 0 .0 2121+053I x x x x x x xR x S x x I 10 33 4.5 2126-158IS I 0 0 .0 2128-123IS x x x x x x I 6 8 2.3 2134+00 I R S I 0 0 .0 2136+141I x x x x x R x x x xS x I 11 85 11.4 2145+067I x R x S x x I 5 35 4.9 2149+056I R S I 1 1 .1 2201+315I x x x R S x x x I 6 10 1.0 2209+236I R S x I 1 1 .1 3C446 I x x x x x x Rx S x x x x I 12 89 14.6 2234+282I x x x xR S x I 5 23 2.4 2243-123IS I 0 0 .0 2255-282IS x x x x x x x I 7 7 1.9 2318+049I R S I 0 0 .0 2356+385I R S I 0 0 .0 Total scans, obs: 530 2417 Average number of obs. per baseline per source (normalized by up-time) = 3.2 Min = .0 Max = 27.0 (Baseline Ho-Ts on 1606+106) RMS = 5.3 Total time: 1440 minutes ( 24.0 hours). Key: Gc=GILCREEK Ho=HOBART26 Kk=KOKEE Sh=SESHAN25 Ts=TSUKUB32 Ur=URUMQI Gc Ho Kk Sh Ts Ur Avg % obs. time: 46 27 48 33 39 38 39 % cal. time: 3 1 4 2 4 2 3 % slew time: 21 31 17 41 18 26 26 % idle time: 28 39 29 21 37 32 31 # of tapes : .8 .4 .8 .5 .6 .6 total # scans: 337 161 364 240 390 244 289 # scans/hour : 14 6 15 10 16 10 12.1 Avg scan (sec): 120 145 115 121 87 136 120 # OF OBSERVATIONS BY BASELINE | Gc Ho Kk Sh Ts Ur StnTotal -------------------------------------- Gc|337 55 278 146 260 153 892 Ho| 161 111 98 116 68 448 Kk| 364 141 270 120 920 Sh| 240 210 188 783 Ts| 390 203 1059 Ur| 244 732 Number of 2-station scans: 206 Number of 3-station scans: 123 Number of 4-station scans: 82 Number of 5-station scans: 87 Number of 6-station scans: 32 Total # of scans, observations: 530 2417 Average baseline components for all observations Average XY = 4549. Average XZ = 4090. Average YZ = 5016. Average length = 5876.