SYOWA-ANT13 (Syowa Antarctic VLBI experiment) 2000 Oct. 05 Notes prepared by Yoshihiro FUKUZAKI Geographical Survey Institute Schedule name: syw013.skd on CDDISA SUBNET Hh Ho Sy station key codes: Hh=HARTRAO Ho=HOBART26 Sy=SYOWA Nominal Start: 08:00 U.T. on Oct. 05 (day 279) name yyddd-hhmmss Hh Ho Sy 1057-797 00279-080000| 180 120 180 | Duration: 24 hours Nominal Stop: 08:00 U.T. on Oct. 06 (day 280) name yyddd-hhmmss Hh Ho Sy 0637-752 00280-075700| 120 120 120 | 1034-293 00280-080200| 340 340 | 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 34 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 syw013.skd for experiment SYW013 (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. 0003-066I x x Rx x S x I 6 10 7.3 0048-097I x R S x x I 3 3 2.1 0104-408Ix x x x x x x x x Rx x S I 11 15 8.1 0119+041I x R x S x x x x x I 7 7 5.3 0208-512I xS x x x x x x x x x x x x R x x x x x x xI 20 36 20.0 0229+131IS x I 1 1 .8 CTA26 Ix R x S I 2 4 3.0 0402-362I x S x x x R x I 5 9 5.4 0454-234I xSx x x x x x x x x x x x x R x x I 16 22 14.1 0458-020I x x R S xI 3 3 2.2 0528+134IS x I 1 1 .8 0537-441I x xS x R x I 4 10 6.1 0637-752I x x x S x x x x xR x I 10 18 8.8 0727-115I x S x x x x x x R x I 8 12 8.5 0823+033I R x S x x x x I 6 8 6.0 0920-397I R S x I 1 1 .7 1034-293I xR x S x x x x x x x x x x x I 13 15 9.0 1057-797I R x x S I 2 6 3.4 1104-445I R S x x x x I 4 4 2.3 1124-186I x xR x xSx I 5 9 5.8 1144-379I R x S x x x I 4 6 3.3 1219+044I R S I 0 0 .0 1255-316I x R x x S x I 4 8 4.8 1334-127I R S x x x x I 4 4 2.7 1351-018I R S I 0 0 .0 1424-418I R x xS x x I 4 8 5.0 1606+106I x R Sx x x x x x I 8 8 6.3 1610-771I R x x S I 2 6 3.4 1741-038I xR x xS x x x x x x x x I 11 15 11.0 1749+096IS I 0 0 .0 1815-553I x x x R x x x x x S I 8 8 4.4 1921-293I x x x R x x x x x Sx x x x I 12 22 13.8 1954-388I R x x x S x I 4 10 6.2 1958-179I x R x x x x S x x x x x x I 11 19 12.6 2121+053I R S I 0 0 .0 2128-123I x R S x I 2 2 1.4 2145+067I R S x x I 2 2 1.5 2255-282I x x x R S I 3 3 1.6 Total scans, obs: 207 315 Average number of obs. per baseline per source (normalized by up-time) = 5.2 Min = .0 Max = 24.4 (Baseline HH-Sy on 0208-512) RMS = 5.6 Total time: 1447 minutes ( 24.1 hours). Key: HH=HARTRAO HO=HOBART26 Sy=SYOWA HH HO Sy Avg % obs. time: 52 37 70 53 % cal. time: 1 1 2 1 % slew time: 27 17 5 16 % idle time: 18 44 21 28 # of tapes : 4.0 4.0 4.0 total # scans: 147 122 199 156 # scans/hour : 6 5 8 6.5 Avg scan (sec): 308 265 309 294 # OF OBSERVATIONS BY BASELINE | HH HO Sy StnTotal -------------------------- HH|147 62 139 201 HO| 122 114 176 Sy| 199 253 Number of 2-station scans: 153 Number of 3-station scans: 54 Total # of scans, observations: 207 315 Average baseline components for all observations Average XY = 5442. Average XZ = 5978. Average YZ = 2501. Average length = 6081.