APSG-12 (Asian Pacific Space Geodynamics-12) 2003 October 8 Notes prepared by Dr. Guangli Wang, SHA/CAS Cynthia Thomas, NVI/GSFC Schedule name: APSG12.SKD on CDDISA Nominal Start: 17:30 U.T. on October 8 (day 281) first observation at 17:30 U.T. on 0202+194 Duration: 24 hours Nominal Stop: 17:30 U.T. on October 9 (day 282) last observation at 17:28 U.T. on 0805+410 for GC-HO-KK-SH-TS-UR 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) 343 40476601 Hobart H HO 2 (TT) 162 72425901 Kokee K KK 1 (TT) 362 72983001 Seshan C SH 1 (TT) 255 72336101 Tsukuba T TS 1 (TT) 382 73452301 Urumqi U UR 3 (TT) 254 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 ./apsg12.skd for experiment APSG12 (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 x R S x I 4 8 1.5 0014+813IS I 0 0 .0 0048-097I x RS x x x I 4 6 1.0 0059+581IS x x x x x x x x x x x x x x x xI 16 125 13.5 0104-408IS x x x x x I 5 7 1.1 0106+013I x x x x R x xS x x I 9 71 10.6 0111+021I R S I 0 0 .0 0119+115I x x R x S x x x x I 8 10 1.2 0119+041I x R S I 1 3 .4 0133+476IS x x x x x x x x x x x x x x x x x xI 18 102 11.9 0201+113I R S x I 1 1 .2 0202+149I x x x x x x x R x x x x xS x I 15 135 18.1 0208-512IS x x x x x x x I 7 7 .9 0229+131I R S I 0 0 .0 0235+164I R S I 0 0 .0 CTA26 I x x x x R x x S x x x x xI 11 60 9.3 0402-362IS x x x I 3 3 .6 0405-385IS x x I 2 2 .3 0434-188IS I 0 0 .0 0454-234ISx x x x x x x x x x x I 11 44 9.3 0458-020I R S I 0 0 .0 0454+844IS I 0 0 .0 0530-727IS I 0 0 .0 0528+134I x x x x x x x x Rx x x x S x I 13 39 4.7 0537-441IS x x x x x x x I 7 12 2.3 0552+398IS x x x x x x x x x x x x x x x x x x x x I 20 120 15.1 0556+238I R x Sx I 2 2 .2 0602+673IS x x I 2 4 .4 0607-157IS x x x x I 4 28 6.3 0637-752IS I 0 0 .0 0642+449IS x I 1 1 .1 0656+082I xR x S I 2 2 .3 0718+793IS x x x x I 4 12 1.1 0727-115IS x x x x x x x x x I 9 53 13.4 0743+259I x x x x x R S I 5 7 .7 0749+540IS x x x x I 4 13 1.4 0804+499IS x x x I 3 3 .3 0805+410IS x x I 2 4 .4 0808+019Ix x x x x R S x I 6 6 .9 0823+033I x x Rx x x Sx I 6 14 2.0 OJ287 I S x x x x x x x x R x x x x I 13 82 10.1 4C39.25 I x x x x x x x x x x x x x Rx S x I 15 92 11.7 OK290 I S R I 0 0 .0 0955+476IS x x x x x x x x I 8 51 6.0 1034-293IS x x x x x I 5 5 1.1 1044+719IS x x x x x x x x x I 9 49 4.6 1053+815IS I 0 0 .0 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 I 4 9 1.8 1128+385I S x x x x R I 4 15 1.4 1144-379IS x x x x x x I 6 12 2.3 1156+295Ix x x Sx x x x x x x x x xR x x I 15 115 14.8 1219+044I S R I 0 0 .0 3C274 I x S x x x R xI 6 14 1.7 1255-316IS I 0 0 .0 1300+580IS x x x x x x x x I 8 58 6.4 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 9 90 8.2 OQ208 I x S x x x x x x x x RI 9 23 2.3 1418+546IS x I 1 1 .1 1417+385I R S x x x I 3 5 .4 1424-418IS x x I 2 4 .7 1451-375IS x x x x x xI 6 12 2.3 1519-273IS x x x x x x x x x x x xI 12 55 11.7 1606+106I x x x Rx x x x x x S x x x x x x I 16 130 17.8 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 x x I 7 24 2.8 DA426 IS x I 1 1 .1 1726+455IS x x I 2 6 .7 1739+522IS x x x x x x x x x x x x x x x xI 16 111 12.7 1741-038I x x x x x R x xS x x x x x x x x I 16 104 16.7 1745+624IS x I 1 1 .1 1749+096I x R xS x x I 4 29 4.0 1803+784IS x x x x x x x x x I 9 90 8.2 3C371 IS x x x x I 5 30 2.9 1815-553IS x I 1 1 .1 1908-201IS x x x x x I 5 5 1.2 1920-211IS I 0 0 .0 1921-293IS x x x x x x x I 7 18 4.9 1923+210Ix x x x x R x x x x x x S x x x x x I 16 38 4.2 1954-388IS x x x x I 4 9 1.8 1958-179IS I 0 0 .0 2005-489IS x x I 2 2 .3 3C418 IS x x x x x x x I 7 36 4.1 2052-474IS I 0 0 .0 2113+293I x R S I 1 1 .1 2121+053I x x x x x x xR x x S x x I 11 42 5.7 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 1 1 .1 2136+141I x x x R x x x x xS x x I 10 96 13.0 2145+067I x x R S x xx I 6 22 3.1 2149+056I R S I 0 0 .0 2201+315I x x R x S x x I 5 7 .6 2209+236I R S x I 1 1 .1 3C446 I x x x x x Rx xS x x x x I 11 86 14.1 2234+282I x x x x R S x x I 6 17 1.7 2243-123IS x I 1 1 .2 2255-282IS x x x x x x I 6 6 1.6 2318+049I R S x x I 2 2 .3 2356+385I R S I 0 0 .0 Total scans, obs: 526 2521 Average number of obs. per baseline per source (normalized by up-time) = 3.4 Min = .0 Max = 28.4 (Baseline Gc-Ho on 0727-115) RMS = 5.6 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: 47 26 49 37 37 41 40 % cal. time: 3 1 4 2 4 2 3 % slew time: 20 29 18 40 17 23 24 % idle time: 28 42 28 18 40 31 31 # of tapes : .8 .4 .8 .6 .6 .7 total # scans: 343 162 362 255 382 254 293 # scans/hour : 14 6 15 10 15 10 12.2 Avg scan (sec): 118 141 118 128 85 142 122 # OF OBSERVATIONS BY BASELINE | Gc Ho Kk Sh Ts Ur StnTotal -------------------------------------- Gc|343 55 280 162 265 165 927 Ho| 162 112 102 114 73 456 Kk| 362 157 268 132 949 Sh| 255 223 203 847 Ts| 382 210 1080 Ur| 254 783 Number of 2-station scans: 203 Number of 3-station scans: 105 Number of 4-station scans: 88 Number of 5-station scans: 95 Number of 6-station scans: 35 Total # of scans, observations: 526 2521 Average baseline components for all observations Average XY = 4582. Average XZ = 4070. Average YZ = 5011. Average length = 5877.