SYOWA-ANT11 (Syowa Antarctic VLBI experiment) 2000 Aug. 08 Notes prepared by Yoshihiro FUKUZAKI Geographical Survey Institute Schedule name: syw011.skd on CDDISA SUBNET Hh Ho Sy station key codes: Hh=HARTRAO Ho=HOBART26 Sy=SYOWA Nominal Start: 08:00 U.T. on Aug. 08 (day 221) name yyddd-hhmmss Hh Ho Sy 1057-797 00211-080000| 230 180 230 | Duration: 24 hours Nominal Stop: 08:00 U.T. on Aug. 09 (day 222) name yyddd-hhmmss Hh Ho Sy 1057-797 00222-080200| 230 180 230 | 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 33 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 syw011.skd for experiment SYW011 (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. 0003-066Ix x x R x x S I 6 10 7.3 0048-097I x x x R S I 3 3 2.2 0104-408I S x x x x x x x R I 7 7 3.3 0119+041I x x R x S I 3 3 2.3 0208-512I x x x x xS x x x x x x x x x x x x Rx x x I 20 36 20.0 0229+131IS x x x I 3 3 2.4 CTA26 I S x x R x I 3 5 3.7 0402-362I x x x x xS x x R I 7 15 9.1 0454-234IR x x x x Sx xx x x x x I 11 19 12.3 0458-020I R S I 0 0 .0 0528+134IS I 0 0 .0 0537-441I R x x x xS x x x I 7 15 9.1 0637-752I x R x x S x x x x I 7 11 5.1 0727-115I x x R S x x x x I 6 6 4.2 0823+033I R x Sx x x x x I 6 8 6.0 0920-397I Rx S x I 2 2 1.2 1034-293I x x R x x S x x x x x x x x I 12 16 9.9 1057-797I R x x S I 3 9 5.1 1104-445I x R S x I 2 2 .9 1124-186I x R S x x I 3 3 2.0 1144-379I x R S x x I 3 3 1.9 1219+044I R xS I 2 2 1.5 1255-316I x x x x R S I 4 4 2.1 1334-127I R x x Sx x x x x x I 8 12 8.3 1351-018I R S I 0 0 .0 1424-418I x x R x x x x x Sx x x I 10 20 12.1 1606+106IS x x x x x x x x I 8 10 7.9 1610-771I R x x S I 2 6 3.4 1741-038I x R Sx x x x x x x x I 9 9 6.5 1749+096I R S I 0 0 .0 1815-553I S x R x x x x x x I 7 7 4.1 1921-293I x x x x x R x x x x S xI 11 19 11.5 1954-388I x R S x I 2 2 1.2 1958-179I x x xR x x x S I 6 12 7.7 2121+053I R S I 0 0 .0 2128-123Ix R x S I 2 4 2.8 2145+067I R S x I 1 1 .8 2255-282I x R S I 1 1 .5 Total scans, obs: 187 285 Average number of obs. per baseline per source (normalized by up-time) = 4.7 Min = .0 Max = 24.4 (Baseline HH-Sy on 0208-512) RMS = 5.3 Total time: 1446 minutes ( 24.1 hours). Key: HH=HARTRAO HO=HOBART26 Sy=SYOWA HH HO Sy Avg % obs. time: 51 41 72 54 % cal. time: 1 1 2 1 % slew time: 24 17 4 15 % idle time: 22 39 21 27 # of tapes : 4.0 4.0 4.0 total # scans: 127 120 176 141 # scans/hour : 5 4 7 5.9 Avg scan (sec): 352 297 355 334 # OF OBSERVATIONS BY BASELINE | HH HO Sy StnTotal -------------------------- HH|127 60 116 176 HO| 120 109 169 Sy| 176 225 Number of 2-station scans: 138 Number of 3-station scans: 49 Total # of scans, observations: 187 285 Average baseline components for all observations Average XY = 5564. Average XZ = 6069. Average YZ = 2446. Average length = 6168.