Session Notes for rd0909 Prepared by K. Baver, NVI, Inc./GSFC Schedule date: 2009-Oct-06 This is the third in a series of R&D sessions whose purpose is to improve scheduling of the Intensive sessions. We divide the 8 stations in this session into two subnets which are scheduled independently: 1.) The first subnet is the intensive network of Kokee-Wettzell. 2.) The second subnet is Fortleza, NyAlesund, Onsala, Tigo, Seshan, and Westford. The Kokee-Wettzell network is scheduled as a series of 22 consecutive, independent intensives starting at 19:10. A) The intensives that start within odd hours (e.g., 19:10, 21:10, 23:10, 01:10) are scheduled using the standard intensive sources and scheduling strategy. B) The intensives that start within even hours (e.g., 20:10, 22:10, 00:10) are scheduled using an enlarged source list. The start times were set for 10 minutes past the hour so that the intensives would sample the same part of the sky as the previous two R&D sessions. The 6 station network observes independently and serves as an independent external check on EOP. The GSFC analysis center will analyze the 22 pseudo intensive sessions with a view towards determining if one of the scheduling strategies is better in terms of things like: lower formal errors; better agreement with independent measures of UT1; robustness of the schedule. The schedule uses the standard R1 256 data-rate. =========================================================== ----- Parameter listing -------------------------------------- Experiment: RD0909 Description R&D-07 2009. Intensive test Scheduler: NASA Correlator: HAYSTACK Start: 2009-279-17:30:00 End: 2009-280-17:30:00 Current yyyyddd: 2009279 (2009.76) ( 15111 MJD, TUES 6OCT.) Greenwich sidereal time: 18:32: 0.00 (17:30: 0 UT) Sun's RA and DEC: 12h 50.0m -5d 21.8 =========================================================== First observations Observation listing from file ./rd0909.skd for experiment RD0909 Source Start DURATIONS name yyddd-hhmmss Ft Kk Ny On Sh Tc Wf Wz 2000+472 09279-173000| 500 280 500 226 458 | 3C274 09279-173604| 133 133 | 0552+398 09279-173956| 30 30 30 30 | 2052-474 09279-174107| 171 171 | 1053+815 09279-174138| 66 199 341 341 | 0059+581 09279-174600| 36 36 | 0955+476 09279-174809| 30 30 | 1741-038 09279-174855| 225 500 500 500 | 2234+282 09279-175052| 30 30 | 2229+695 09279-175230| 69 69 | . . . 3C371 09279-191000| 40 40 | 0642+449 09279-191137| 40 40 | End of listing. =========================================================== Last observations Observation listing from file ./rd0909.skd for experiment RD0909 Source Start DURATIONS name yyddd-hhmmss Ft Kk Ny On Sh Tc Wf Wz 1324+224 09280-170041| 40 40| 0133+476 09280-170245| 40 40| 2000+472 09280-170249| 500 281 500 226 464 | 0307+380 09280-170401| 136 136| 0529+483 09280-170654| 129 129| 2113+293 09280-170806| 30 30 | 2229+695 09280-170940| 69 69 | 1053+815 09280-171246| 66 197 337 337 | 0059+581 09280-171705| 36 36 | 1758+388 09280-171928| 500 500 500 500 | 0748+126 09280-172900| 30 30 | End of listing. =========================================================== SKED Summary from file ./rd0909.skd for experiment RD0909 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 1.6 Min = 0.0 Max = 90.0 (Baseline Sh-Tc on 0648-165) RMS = 5.6 Total time: 1440 minutes ( 24.0 hours). Key: Ft=FORTLEZA Kk=KOKEE Ny=NYALES20 On=ONSALA60 Sh=SESHAN25 Tc=TIGO Wf=WESTFORD Wz=WETTZELL Ft Kk Ny On Sh Tc Wf Wz Avg % obs. time: 50 57 49 68 45 28 65 57 53 % cal. time: 2 7 3 3 2 1 3 7 3 % slew time: 26 20 19 18 18 3 11 11 16 % idle time: 22 15 28 10 34 66 20 24 28 total # scans: 146 587 287 237 188 91 219 587 292 # scans/hour : 6 24 12 10 8 4 9 24 12 Avg scan (sec): 294 85 148 249 205 269 257 85 198 # data tracks: 16 16 16 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 16 16 16 Total GBytes: 1545 1788 1531 2127 1388 881 2024 1788 1634 Total GB(M5): 1373 1590 1361 1890 1234 783 1799 1590 1453 # of tapes : 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 8.0 Total GBytes (M5) recorded: 11620.0 # OF OBSERVATIONS BY BASELINE | Ft Kk Ny On Sh Tc Wf Wz StnTotal -------------------------------------------------- Ft| 0 73 69 19 79 75 0 315 Kk| 0 0 0 0 0 587 587 Ny| 231 182 23 195 0 704 On| 148 19 179 0 646 Sh| 1 121 0 471 Tc| 27 0 149 Wf| 0 597 Wz| 587 Number of 2-station scans: 718 Number of 3-station scans: 76 Number of 4-station scans: 137 Number of 5-station scans: 26 Number of 6-station scans: 0 Number of 7-station scans: 0 Number of 8-station scans: 0 Total # of scans, observations: 957 2028 ===========================================================