APSG-11 (Asian Pacific Space Geodynamics-11) 2002 November 5 Notes prepared by Dr. Guangli Wang, SHA/CAS Cynthia Thomas, NVI/GSFC Schedule name: APSG11.SKD on CDDISA Nominal Start: 17:30 U.T. on November 5 (day 309) first observation at 17:30 U.T. on 0528+134 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 November 6 (day 310) last observation at 17:16 U.T. on 0204-362 for HO last observation at 17:23 U.T. on 0119+115 for SH-UR last observation at 17:26 U.T. on 0556+238 for GC-KK-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) 305 40476601 Hobart H HO 2 (HDT) 168 72425901 Kokee K KK 1 (TT) 352 72983001 Seshan C SH 1 (TT) 237 72336101 Tsukuba T TS 1 (TT) 365 73452301 Urumqi U UR 3 (HDT) 227 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 /home1/wgl/schedules/apsg11.skd for experiment APSG11 (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 x x x x x xR x Sx x x x I 14 28 5.1 0048-097IS x x x I 3 21 3.6 0059+581IS x x x x x x x x x x x x x x xI 15 117 12.7 0104-408IS x x x x x x x x x x x x I 12 29 5.9 0106+013I x x R x x S x x x x I 10 68 10.1 0119+115I x x x xR x x x x Sx x x x x x I 14 21 2.6 0119+041I x x x xR S x I 5 9 1.2 0208-512IS x x x x x x x x I 8 8 1.1 0229+131I x x R S x I 3 5 .7 0235+164I x x x x x Rx x x x x xS x x x I 14 120 16.2 CTA26 I x x x x x x x xR x x S x x x x x x x I 17 87 13.5 0402-362IS x x x xx x I 6 36 8.4 0454-234IS x x x x x x x x x x x x x I 13 58 12.3 0458-020I R S x I 1 1 .2 0530-727IS I 0 0 .0 0528+134Ix x x x x x x x x R x x x x Sx x x x I 18 54 6.6 0537-441IS x x x x x x I 6 6 .8 0552+398IS x x x x x x x x x x x x x x x x x x x x x x x I 23 128 16.0 0556+238Ix R x S x x x x I 6 8 .9 0637-752IS I 0 0 .0 0718+793ISx x x x x x x x x I 9 27 2.5 0727-115IS x x x x x x x x x x x I 12 69 13.5 0749+540IS x x x x x x x x I 8 27 2.8 0804+499IS x x x x x I 5 15 1.7 0805+410IS x x x x x x I 6 10 1.1 0823+033I x x x x x x x Rx x x S x I 12 30 4.2 OJ287 I x x x x x x x x x x R x x x x x S x I 16 94 11.8 0919-260IS I 0 0 .0 0920-397IS I 0 0 .0 4C39.25 IS x x x x x x x x x x x x x x x I 16 89 15.4 OK290 I x xR SI 2 2 .2 0955+476IS x x x x x x x x x xI 10 63 7.4 1034-293IS x x x x x x xI 7 7 1.4 1044+719IS x x x x x x x I 7 26 2.5 1053+815IS x x x x x I 6 18 1.6 1057-797IS I 0 0 .0 1104-445IS I 0 0 .0 1124-186IS x x x x x I 5 17 3.5 1128+385I x x x x R S I 4 15 1.4 1144-379ISx x x x x x x x x I 9 25 5.4 1219+044I x Sx x x x x x R x x I 9 17 2.3 1255-316IS x x I 2 4 .7 1300+580IS x x x x x x x I 7 53 5.8 1313-333IS I 0 0 .0 1334-127ISx x x x x x x x x x I 10 63 12.4 1351-018I S x x x x x R I 5 9 1.5 1357+769IS x x x x x x x x x x x I 11 110 10.0 1424-418IS x x x I 3 5 .9 1451-375IS x x x x xI 5 14 3.0 1606+106I x R x x x x xS x x x x x x x x x x x x x x I 21 132 17.9 1610-771IS Average number of obs. per baseline per source (normalized by up-time) = 5.0 Min = .0 Max = 33.8 (Baseline Gc-Kk on 0003-066) RMS = 6.4 Total time: 1443 minutes ( 24.1 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 51 39 34 38 39 % cal. time: 3 1 4 2 4 2 3 % slew time: 22 29 17 39 16 22 24 % idle time: 28 40 26 17 44 36 32 # of tapes : .7 1.6 .8 .6 .6 .6 total # scans: 305 168 352 237 365 227 275 # scans/hour : 12 6 14 9 15 9 11.5 Avg scan (sec): 130 144 125 144 82 145 128 # OF OBSERVATIONS BY BASELINE | Gc Ho Kk Sh Ts Ur StnTotal -------------------------------------- Gc|305 37 252 118 223 120 750 Ho| 168 107 106 113 72 435 Kk| 352 120 249 90 818 Sh| 237 201 187 732 Ts| 365 179 965 Ur| 227 648 Number of 2-station scans: 202 Number of 3-station scans: 142 Number of 4-station scans: 81 Number of 5-station scans: 76 Number of 6-station scans: 20 Total # of scans, observations: 521 2174 Average baseline components for all observations Average XY = 4421. Average XZ = 4122. Average YZ = 4960. Average length = 5817.