SYOWA-ANT10 (Syowa Antarctic VLBI experiment) 2000 Jul. 03 Notes prepared by Yoshihiro FUKUZAKI Geographical Survey Institute Schedule name: syw010.skd on CDDISA SUBNET Hh Ho Sy station key codes: Hh=HARTRAO Ho=HOBART26 Sy=SYOWA Nominal Start: 08:00 U.T. on Jul. 03 (day 185) name yyddd-hhmmss Hh Ho Sy 0637-752 00185-080000| 120 120 120 | Duration: 24 hours Nominal Stop: 08:00 U.T. on Jul. 04 (day 186) name yyddd-hhmmss Hh Ho Sy 0823+033 00186-080000| 260 370 370 | 0454-234 00186-080800| 310 310 | Correlator: Mitaka Purpose ======= The purpose of the SYOWA-ANT (Syowa Antarctic VLBI experiment) sessions is to strengthen reference frame in the southern hemisphere and to detect Antarctica plate motion. Schedule ======== This is a new schedule generated with the automatic mode of sked using the variable scan length with a minimum of 120 seconds. SNR goals are 20 at X-band and 15 at S-band for all stations. This schedule was optimized by different features: - observations were weighted by their expected SNRs, - 30 ps noise contribution added, - mimimum time between observations of the same radio source was set to 20 min - use of CvgONLY in order to improve the geometry of observation This schedule was made using 35 sources which helped improve the sky coverage. Procedures ========== Please generate the procedures for this session using drudg. In Syowa station, skd file is read by K4-FS directly. Please send messages of ready, start and end of experiment at your station to ivs-ops@ivscc.gsfc.nasa.gov and doi@syowa.nipr.ac.jp. Please put log file onto cddisa. NO PREPASS TIME: There is no time allowed in the schedule for prepassing tapes. Therefore all tapes needed for this experiment must be pre-checked before the start of this experiment. FREQUENCY SEQUENCE: Modified standard CDP-SX (4MHz) frequency sequence is used for all SYOWA-ANT experiments. The frequency sequence of S band is changed to avoid interference in Hobart. Please verify that the frequency of BBC is correct. THIS SCHEDULE HAS A 150 SECOND EARLY TAPE START ----------------------------------------------- THE CABLE CONNECTION BETWEEN BBC AND SAMPLER IS 'PARALLEL.' ----------------------------------------------------------- Summary ======= SKED Summary from file syw010.skd for experiment SYW010 (all scans with at least one subnet station) SOURCE |0 3 6 9 12 15 18 21 | #SCANS #OBS #Obs/bl Calculating rise/set times for source 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38... done. 0003-066IxS x R I 2 4 2.9 0048-097I S x x xR I 3 3 2.1 0104-408I x S x x x x x x x x R I 9 11 5.8 0119+041I x S x x x x x R I 6 6 4.5 0208-512Ix x x x x x x xS x x x x x x x x x x xR I 19 31 16.9 0229+131IS x I 1 1 .8 CTA26 I xR S x I 2 2 1.5 0402-362I R x x x x S x x x I 7 15 8.9 0454-234I x Rx x x x x Sx x x x x x x x I 14 24 15.5 0458-020I R S x I 1 1 .7 0528+134IS x x I 2 2 1.6 0537-441I x R x x S x x x I 6 10 5.7 0637-752I R x x x x S x x x I 7 15 7.8 0727-115I x R x x S x x x x x x I 9 13 9.1 0823+033I R x x S x x I 5 11 8.4 0920-397I R x S I 1 1 .7 1034-293I x x R x x x S x x x x x I 10 16 10.0 1057-797I R x S I 2 6 3.4 1104-445I R S x I 1 1 .7 1124-186I x x x R x S x I 5 7 4.4 1144-379I x R x S x x I 4 6 3.7 1219+044I R S I 1 1 .8 1255-316I x R S I 1 1 .5 1334-127I R x x S x x x I 6 12 8.4 1351-018I R S I 0 0 .0 1424-418I x x R x x x S x I 6 12 7.1 1606+106I x R S x x x x x x x I 9 9 7.0 1610-771I S x R I 2 2 .7 1741-038I x x x R x x x Sx x x x x x x x I 14 20 14.6 1749+096I R S I 0 0 .0 1815-553I x x S x x R x x x x I 8 8 4.7 1921-293I x x x x x x x x x x R x x S I 13 17 9.9 1954-388I x x R x x S I 4 8 4.9 1958-179I x x x x R x x Sx xx x I 10 14 9.2 2121+053I R S I 0 0 .0 2128-123I x R S x I 2 2 1.4 2145+067I x R S I 1 1 .8 2255-282I S x R xI 2 2 1.2 Total scans, obs: 195 295 Average number of obs. per baseline per source (normalized by up-time) = 4.9 Min = .0 Max = 27.7 (Baseline HH-Sy on 1741-038) RMS = 5.5 Total time: 1453 minutes ( 24.2 hours). Key: HH=HARTRAO HO=HOBART26 Sy=SYOWA HH HO Sy Avg % obs. time: 50 36 66 51 % cal. time: 1 1 2 1 % slew time: 24 24 4 18 % idle time: 22 37 26 28 # of tapes : 4.0 4.0 4.0 total # scans: 134 124 182 146 # scans/hour : 5 5 7 6.1 Avg scan (sec): 329 259 318 302 # OF OBSERVATIONS BY BASELINE | HH HO Sy StnTotal -------------------------- HH|134 63 121 184 HO| 124 111 174 Sy| 182 232 Number of 2-station scans: 145 Number of 3-station scans: 50 Total # of scans, observations: 195 295 Average baseline components for all observations Average XY = 5566. Average XZ = 6074. Average YZ = 2449. Average length = 6174.