CORE-B802 (Continuous Observations of the Rotation of the Earth-B802) 2000 November 2 Notes prepared by Cynthia Thomas and Nancy Vandenberg,NVI/GSFC Schedule name: CB802.SKD on CDDISA Nominal Start: 19:00 U.T. on November 2 (day 307) first observation at 19:00 U.T. on 1357+769 Nominal Stop: 19:00 U.T. on November 3 (day 308) last observation at 18:46 U.T. on 1908-201 for AP-NT-YB last observation at 18:51 U.T. on 0528+134 for KK-NY-SH-UR Correlator: Haystack **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 Algonquin G AP 2 (HDT) 221 72828201 Kokee K KK 1 (TT) 218 72983001 Noto S NT 2 (HDT) 234 75478901 Ny Alesund O NY 1 (TT) 200 73313301 Seshan C SH 2 (HDT) 199 72336101 Urumqi U UR 2 (HDT) 220 73303201 Yebes Y YB 2 (HDT) 196 73333601 Purpose ======= The purpose of the CORE-B sessions is to obtain EOP data on days adjacent to the main NEOS and CORE-3 sessions and thus extend the span of continuous data. The secondary purpose of CORE-B is to provide observing sessions during which the stations can demonstrate their performance and their ability to participate in future regular CORE sessions. The CORE-B networks are numbered 7 and 8 to distinguish them from the networks used in 1999. Schedule ======== This is a new schedule generated by C. Thomas with the automatic mode of sked. The characteristics of the CORE-B schedules have changed slightly. Changes were made to smooth out the distribution of observations over the sky. Following are the characteristics of the CORE-B schedule file: 1) This schedule was optimized for sky coverage. 2) Only the observations in the previous 2 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 the baselines were set to 20 for X-band and 15 for S-band, with the exception of the Yebes baselines. The minimum SNR limits for the Yebes baselines were set to 15 for X-bannd and 12 for S-band. 6) This schedule was made using 48 sources which helped improve the sky coverage. Flux Information ================ Program snranal compares the measured performance of a session with respect to the predicted. The program calculates an empirical flux density for each source. In order to account for changes in the flux catalog since the last update based on source modeling, the fluxes in the flux catalog for the sources in the current source catalog were adjused using the following databases: Date Session ==== ========= 00MAY02 NEOS-A366 00MAY08 IRIS-S150 00MAY09 NEOS-A367 00MAY10 CORE-B701 00MAY15 EUROPE-56 00MAY16 NEOS-A368 00MAY23 NEOS-A369 00MAY30 NEOS-A370 00JUN06 NEOS-A371 Procedures ========== Please generate the procedures for this session using drudg. Correlation ========== This experiment will be correlated at the Haystack Correlator with all baselines being correlated. SKED Summary from file ./cb802.skd for experiment CB802 (all scans with at least one subnet station) SOURCE |0 6 12 18 | #SCANS #OBS #Obs/bl 0003-066I xx xx x x x x xxx x x xx xx x x x x xI 22 45 5.8 0048-097I x I 1 3 .4 0059+581I x x x xI 4 21 1.1 0119+115I x x x x x x x x x x x x x xx I 15 70 6.3 0119+041I xx x x x x x x x xI 10 31 3.2 0229+131I x I 1 3 .2 0235+164I x x x x I 4 21 1.8 CTA26 I x x x x x I 5 12 1.3 0402-362I x x x x x x x I 7 7 2.0 0454-234I xx x x x x xx x x x xx xx x xx I 18 30 4.8 0458-020I x x xx x x x x x I 9 23 2.3 0528+134Ixx x xx x x xx x x x x xx x xx xx x x I 22 104 8.8 0552+398Ix x x x x x xx x x x x xx x x x x xx x x x x x I 25 250 17.2 0556+238I x x x x I 4 4 .3 0727-115Ix xx x x x x x x x x x x x xx x x x xx I 21 42 5.8 0749+540I x x x x x x x x x x x x x I 13 167 9.5 0804+499I I 0 0 .0 0805+410I I 0 0 .0 0823+033Ix xx x x x x xx x x x x x x xx x I 18 67 7.0 OJ287 I xx x x x xx x I 8 26 2.2 4C39.25 I x x x xx x x x x x x x x x x x x x x x x x x xI 24 235 16.2 0955+476I x I 1 10 .6 1034-293I x x xx x x x x x I 9 9 1.7 1044+719Ix x x x x x x I 7 44 2.2 1053+815I x I 1 1 .0 1124-186I x x x x x x xx xx x x x x x xx xI 18 34 5.1 1128+385I x I 1 3 .2 1144-379I x x x x I 4 4 1.2 1219+044I x x xx x x x xxx x x x xx x xx x x xI 21 81 8.4 1255-316I x x x x I 4 4 .9 1300+580I I 0 0 .0 1313-333I x I 1 1 .2 1334-127I I 0 0 .0 1351-018I I 0 0 .0 1357+769I x x x x x x x x x x xI 11 225 10.7 1606+106I x x x x x x x xx x xx x x x x x I 17 82 7.4 1622-253I x x x x x x xx x x x x I 12 14 2.3 NRAO512 I x xx x x x I 6 49 3.3 1739+522I x x x I 3 3 .2 1741-038Ix x x x x xx x x x x xx xx x x xx x x x x I 23 64 14.6 1749+096I x x xx xxx x x x I 10 59 5.5 1908-201Ix x x xx x x x x x xx x x x I 15 25 3.9 1921-293I x x x x x xx x I 8 8 1.3 1954-388I x x x x x I 5 5 1.4 1958-179I x x x x x I 5 13 2.0 2121+053I x x x x x x x xx xx x x x x xx xx x xx x I 23 108 10.9 2145+067Ix x x x x I 5 14 1.4 2234+282I x x x x x x x x x x x xI 12 67 5.0 Total scans, obs: 453 2088 Average number of obs. per baseline per source (normalized by up-time) = 4.0 Min = .0 Max = 102.9 (Baseline Ny-Yb on 1741-038) RMS = 6.5 Total time: 1432 minutes ( 23.9 hours). Key: Ap=ALGOPARK Kk=KOKEE Nt=NOTO Ny=NYALES20 Sh=SESHAN25 Ur=URUMQI Yb=YEBES Ap Kk Nt Ny Sh Ur Yb Avg % obs. time: 21 28 27 26 33 31 31 28 % cal. time: 2 2 2 2 2 2 2 2 % slew time: 55 12 36 12 38 24 20 28 % idle time: 21 56 33 58 25 41 45 40 # of tapes : 1.2 .5 1.6 .4 1.9 1.8 1.9 total # scans: 221 218 234 200 199 220 196 212 # scans/hour : 9 9 9 8 8 9 8 8.9 Avg scan (sec): 82 112 101 112 144 123 137 115 # OF OBSERVATIONS BY BASELINE | Ap Kk Nt Ny Sh Ur Yb StnTotal ------------------------------------------ Ap|221 126 115 125 43 64 110 583 Kk| 218 30 77 123 87 26 469 Nt| 234 148 69 128 190 680 Ny| 200 91 134 119 694 Sh| 199 157 40 523 Ur| 220 86 656 Yb| 196 571 Number of 2-station scans: 170 Number of 3-station scans: 108 Number of 4-station scans: 87 Number of 5-station scans: 64 Number of 6-station scans: 12 Number of 7-station scans: 12 Total # of scans, observations: 453 2088 Average baseline components for all observations Average XY = 5689. Average XZ = 4112. Average YZ = 4112. Average length = 5939.