EUROPE-6/95 (EUROPEAN Geodetic VLBI Network session 6/95) Notes prepared by Axel Nothnagel, University of Bonn Geodetic Institute Date of experiment: 1995 December 6 Nominal start time: 20h00 UT Nominal end time: 20h00 UT on December 7 Duration: 24 hrs Participating stations: Station Code Station Code # of tapes # of obs Wettzell WZ 2 (HDT) 233 Madrid 65 2 (HDT) 223 Matera IM 3 (HDT) 256 Onsala O6 3 (HDT) 256 Medicina ME 2 (HDT) 261 Noto NT 2 (HDT) 258 Effelsberg EF 2 (HDT) 259 Ny Alesund NY 2 (HDT) 246 Schedule name: EUROPE6.SKD on CDDIS for all stations except DSS65 and Effelsberg (distributed locally) DSN file name: Correlator: Bonn Purpose ======= The purpose of this experiment is to determine station coordinates in the northern part of the European geodetic VLBI network with the highest precision possible. Schedule ======== The schedule was produced by Axel Nothnagel using the automatic mode of sked. The schedule was optimized for station positions of DSS65, Medicina, Matera, Noto, Effelsberg, NyAlesund and Onsala with Wettzell as the reference station. The minimum SNR on all baselines is 20 at X band and 15 at S band. A large number of observations was given priority of higher SNR limits. The schedule was made with the early tape start (15 seconds) feature. Wettzell was excluded for IRIS-Intensive between 17h20 to end of experiment on Dec. 07. Procedures ========== The frequency sequence, EUR-SX, used for the last EUROPE experiments will also be used for this experiment although it was designed for the Italian stations. Using this frequency sequence in all experiments of the EUROPE series avoids confusions. Channel Sky Frequency ======= ============= X-band 1 8210.99 2 8220.99 3 8250.99 4 8310.99 5 8420.99 6 8500.99 7 8550.99 8 8570.99 S-band 1 2212.99 2 2222.99 3 2237.99 4 2267.99 5 2292.99 6 2297.99 Correlation =========== This experiment will be correlated at the Bonn Correlator with all baselines being correlated. SKED Summary from file /diskA3/sked95/sked/sched/europe6.skd for experiment EUROPE6 (all scans with at least one subnet station) SOURCE |0 6 12 18 | #SCANS #OBS #Obs/bl 0048-097I x xx x x I 5 65 6.4 0059+581I x x x x x x x x x x x x x xx x I 16 400 14.8 0119+041I xx xx x xx I 7 182 13.8 0229+131I x x x x x I 5 112 7.5 CTA26 I x xxx x x I 6 128 10.8 0454-234I x I 1 21 2.9 0457+024I xx x x x I 5 133 10.3 0458-020I x x x x I 4 87 7.5 0528+134I xxx xx x x xx x x x I 12 255 17.0 0552+398I x xxx xx x x x x x x x x xx x xI 18 382 18.9 0727-115I x x x I 3 63 6.4 0735+178Ix xx x xx x x x x x xI 12 282 17.9 0804+499I x x x x x x x x xx x x x x x x xI 17 354 14.7 0823+033Ix xx xx xxx x x x xxI 13 343 26.4 OJ287 Ixxxx x x xx x x x I 11 248 15.3 0919-260I x x I 2 22 3.6 4C39.25 Ix xx xx x x xx x x x x xx x x x x x xxI 23 473 23.5 OK290 Ix xx x x x xxI 8 176 10.3 0955+476Ix x x x x x I 6 94 4.1 1044+719I x x I 2 36 1.3 1219+044I x x I 2 56 4.3 1308+326I x xx x x x x x x x xx x xx I 15 339 18.4 1334-127I xx x xx x x x I 8 104 10.9 1357+769I x x x x x x x x I 8 210 7.5 1606+106I x x x xx x x x x I 9 231 16.2 1622-253I I 0 0 .0 NRAO512 I x xx x x x x x x x x xx I 13 274 13.5 1726+455I x x I 2 56 2.6 1741-038I x x x x x xx I 7 124 11.4 1749+096I x x x xx I 5 113 7.9 1803+784I x x x x x x x x I 8 210 7.5 1921-293I x x x I 3 17 2.4 1958-179I x x x x x x x I 7 103 11.9 2121+053I x x x x x x I 6 142 10.6 2145+067I x x x I 3 70 5.2 2234+282I xx x x x xx x x x x x x x x I 15 318 18.0 2255-282I x xx x x I 5 53 9.3 Total scans, obs: 292 6276 Average number of observations per baseline (normalized by up-time) = 10.6 Min = .0 Max = 29.2 (Baseline EF-IM on 0823+033) RMS = 6.9 Total time: 1443 minutes ( 24.1 hours). Key: 65=DSS65 EF=EFLSBERG IM=MATERA ME=MEDICINA NT=NOTO NY=NYALES20 O6=ONSALA60 WZ=WETTZELL 65 EF IM ME NT NY O6 WZ Avg % obs. time: 23 26 47 27 32 30 47 25 32 % cal. time: 2 2 2 3 2 2 2 2 2 % slew time: 53 42 10 26 30 10 15 6 24 % idle time: 20 27 38 42 33 55 33 64 39 # MK III tapes: 2 2 3 2 2 2 3 2 total # scans: 223 259 256 261 258 246 256 233 249 # scans/hour : 9 10 10 10 10 10 10 9 9 Avg scan (sec): 90 90 161 90 110 107 161 95 113 # OF OBSERVATIONS BY BASELINE | 65 EF IM ME NT NY O6 WZ StnTotal ---------------------------------------------- 65|223 213 209 216 213 187 197 191 1487 EF| 259 245 255 247 222 240 222 1548 IM| 256 251 251 213 233 222 1552 ME| 261 253 220 238 226 1571 NT| 258 214 231 223 1642 NY| 246 233 201 1625 O6| 256 210 1589 WZ| 233 1538 Number of 2-station scans: 25 Number of 3-station scans: 5 Number of 4-station scans: 3 Number of 5-station scans: 11 Number of 6-station scans: 32 Number of 7-station scans: 60 Number of 8-station scans: 156 Total # of scans, observations: 292 6276