Session Notes for rd1306.skd Prepared by K. Le Bail and J. Gipson, NVI, Inc./GSFC =========================================================== PURPOSE AND GENERAL NOTES =========================================================== Observing link sources between GAIA and ICRF2. (Here: schedule as many sources as possible from the 24 sources of category 4 from the Bordeaux proposal.) The Laboratory d'Astrophysique de Bordeaux (LAB) submitted a proposal to observe 195 transfer sources between ICRF2 and the GAIA mission. These 195 sources are divided into four categories. The forth category contains 24 sources that are not part of the IVS source monitoring program and that have a poor position accuracy. The primary goal of observing them in several R&D sessions is to improve their position accuracy. In RD1306, we use the 24 sources of the category 4 of the GAIA proposal in the astro mode of sked. Forty of the good geodetic sources are used as base of a stable sources set and uniform sky coverage. We use the flux values provided by LAB. Unfortunately, due to the weakness of some of the sources, we were not able to schedule two of the 24 sources. Kokee and Ny Alesund will observe INT E13233 during the time from 1815 UT to 1945 UT. Parkes will observe 10 hours of the session (until 0400 UT on doy 234). ----- Parameter listing -------------------------------------- Experiment: RD1306 Description R&D-08/2013 Scheduler: NASA Correlator: HAYS Start: 2013-233-18:00:00 End: 2013-234-18:00:00 Current yyyyddd: 2013233 (2013.64) ( 16526 MJD, WED. 21AUG.) Greenwich sidereal time: 16: 0: 0.00 (18: 0: 0 UT) Sun's RA and DEC: 10h 3.9m 11d 52.7 =========================================================== First observations Observation listing from file ./rd1306.skd for experiment RD1306 Source Start DURATIONS name yyddd-hhmmss Hh Ho Kk Mc Ny On Pa Wf 0059+581 13233-180000| 40 40| 2059+034 13233-180000| 166 145 120 160 166 | 0506-612 13233-180302| 40 40 | End of listing. =========================================================== Last observations Observation listing from file ./rd1306.skd for experiment RD1306 Source Start DURATIONS name yyddd-hhmmss Hh Ho Kk Mc Ny On Pa Wf 2353+816 13233-181152| 131 78 65 131 101| 0241+622 13233-181451| 61 61 55| 3C418 13233-181716| 40 40 40| 2314-409 13233-181735| 99 99 67 | 0137+012 13233-182312| 142 142 | End of listing. =========================================================== SKED Summary from file ./rd1306.skd for experiment RD1306 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 5.1 Min = 0.0 Max = 84.7 (Baseline Hh-Wf on 2329-415) RMS = 8.2 Total time: 1439 minutes ( 24.0 hours). Key: Hh=HARTRAO Ho=HOBART26 Kk=KOKEE Mc=MEDICINA Ny=NYALES20 On=ONSALA60 Pa=PARKES64 Wf=WESTFORD Hh Ho Kk Mc Ny On Pa Wf Avg % obs. time: 49 53 54 54 48 47 15 52 46 % cal. time: 2 2 2 2 2 3 1 2 2 % slew time: 35 29 14 27 12 17 17 12 21 % idle time: 13 15 29 15 36 32 66 33 30 total # scans: 181 192 204 215 212 240 64 212 190 # scans/hour : 8 8 9 9 9 10 3 9 8 Avg scan (sec): 235 238 227 216 196 169 201 211 210 # data tracks: 32 32 32 32 32 32 32 32 # Mk5 tracks: 32 32 32 32 32 32 32 32 Total TBytes: 3.1 3.3 3.3 3.3 3.0 2.9 0.9 3.2 2.9 Total TB(M5): 2.7 2.9 3.0 3.0 2.7 2.6 0.8 2.9 2.6 # OF OBSERVATIONS BY BASELINE | Hh Ho Kk Mc Ny On Pa Wf Total -------------------------------------------------- Hh| 59 0 119 44 76 8 67 373 Ho| 113 10 20 5 58 7 272 Kk| 38 57 56 44 70 378 Mc| 112 156 0 124 559 Ny| 153 6 114 506 On| 0 120 566 Pa| 0 116 Wf| 502 Number of 2-station scans: 284 Number of 3-station scans: 144 Number of 4-station scans: 60 Number of 5-station scans: 56 Number of 6-station scans: 0 Number of 7-station scans: 0 Number of 8-station scans: 0 Total # of scans, observations: 544 1636 Average X-band SNRs by baseline | Hh Ho Kk Mc Ny On Pa Wf AVG ------------------------------------------------- Hh| 32 - 34 38 30 26 29 32 Ho| 26 26 28 24 34 25 29 Kk| 30 34 26 21 27 27 Mc| 54 45 - 42 43 Ny| 55 34 48 48 On| - 39 42 Pa| - 29 Wf| 38 Average S-band SNRs by baseline | Hh Ho Kk Mc Ny On Pa Wf AVG ------------------------------------------------- Hh| 29 - 24 19 20 26 24 23 Ho| 44 22 18 20 33 25 35 Kk| 35 29 32 32 40 37 Mc| 22 24 - 26 25 Ny| 21 16 22 22 On| - 24 23 Pa| - 32 Wf| 26 =========================================================== Recording mode Name Code GEOSX8N 8F Recording mode setup for: HARTRAO HOBART26 KOKEE MEDICINA NYALES20 ONSALA60 PARKES WESTFORD Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:1 256 Mbits 512 MHz 14 2 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 8.00 MHz 1 32(*1) 32 0.00 X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 140.0 MHz rms spanned bw= 50.9 MHz Effective number of 1-bit channels recorded per sub-pass X S Total 19.128 11.477 30.605 =========================================================== Tape types ID Station Tape length Density Passes Hh HARTRAO Mark5B Ho HOBART26 Mark5A Kk KOKEE Mark5B Mc MEDICINA Mark5A Ny NYALES20 Mark5B On ONSALA60 Mark5A Pa PARKES Mark5A Wf WESTFORD Mark5B =========================================================== SNR targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) Hh Ho Kk Mc Ny On Pa Hh Ho Kk Mc Ny On Pa Ho 20 Ho 15 Kk 20 20 Kk 15 15 Mc 20 20 20 Mc 15 15 15 Ny 20 20 20 20 Ny 15 15 15 15 On 20 20 20 20 20 On 15 15 15 15 15 Pa 20 20 20 20 20 20 Pa 15 15 15 15 15 15 Wf 20 20 20 20 20 20 20 Wf 15 15 15 15 15 15 15 ===========================================================