Session Notes for Research and Development session: rd1310 Prepared by C. Thomas, NVI, Inc./GSFC ============================================================================= PURPOSE AND GENERAL NOTES ============================================================================= The purpose of rd1310 is to test 512 Mbps recording mode as the anticipated mode for CONT14. This frequency setup uses 2-bit sampling with no fanout and 32 tracks. The schedule was generated using SNRs of 20 at X-band and 15 at S-band for all stations. All stations have been fully scheduled. The schedule uses a selection of 60 sources from the good geodetic source list. The minimum subnet size was set to 2. ============================================================================= ----- Parameter listing -------------------------------------- Experiment: RD1310 Description CONT14 CHECKOUT Scheduler: NASA Correlator: HAYS Start: 2013-352-18:00:00 End: 2013-353-18:00:00 Current yyyyddd: 2013352 (2013.96) ( 16645 MJD, WED. 18DEC.) Greenwich sidereal time: 23:50: 0.00 (18: 0: 0 UT) Sun's RA and DEC: 17h 46.8m -23d 24.1 =========================================================== There are no observations for Kokee and Wettzell from 18:15 U.T. to 19:45 U.T. Kokee and Wettzell will participate in the intensive session during this period. =========================================================== First observations Source Start DURATIONS name yyddd-hhmmss Ft Ht Kk Ny On Ts Wf Wz 0202+319 13352-180000| 60 30 37 60 30 39 30| 0716+714 13352-180223| 30 30 30 30 30 30| =========================================================== Last observations Source Start DURATIONS name yyddd-hhmmss Ft Ht Kk Ny On Ts Wf Wz 0544+273 13353-175309| 45 45 | 3C418 13353-175424| 103 62 103 58 48| 0642+449 13353-175435| 30 30 | 2229+695 13353-175720| 153 153 53 | 2113+293 13353-175721| 61 102 102 40| =========================================================== SKED Summary from file ./rd1310.skd for experiment RD1310 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 13.2 Min = 0.0 Max = 180.0 (Baseline Ft-Ny on 1741-038) RMS = 15.9 Total time: 1439 minutes ( 24.0 hours). Key: Ft=FORTLEZA Ht=HART15M Kk=KOKEE Ny=NYALES20 On=ONSALA60 Ts=TSUKUB32 Wf=WESTFORD Wz=WETTZELL Ft Ht Kk Ny On Ts Wf Wz Avg % obs. time: 33 32 33 41 43 28 40 31 35 % cal. time: 4 4 6 6 6 7 6 6 5 % slew time: 46 20 29 27 34 28 23 17 28 % idle time: 16 43 31 25 17 35 30 46 31 total # scans: 336 380 496 498 484 622 485 483 473 # scans/hour : 14 16 21 21 20 26 20 20 20 Avg scan (sec): 85 73 58 72 76 39 72 55 65 # data tracks: 32 32 32 32 32 32 32 32 # Mk5 tracks: 32 32 32 32 32 32 32 32 Total TBytes: 2.0 2.0 2.1 2.6 2.6 1.7 2.5 1.9 2.2 Total TB(M5): 1.8 1.8 1.8 2.3 2.4 1.6 2.2 1.7 1.9 # OF OBSERVATIONS BY BASELINE | Ft Ht Kk Ny On Ts Wf Wz Total -------------------------------------------------- Ft| 192 74 136 143 52 209 151 957 Ht| 0 118 147 158 100 178 893 Kk| 280 214 402 283 198 1451 Ny| 401 358 347 372 2012 On| 304 295 412 1916 Ts| 241 279 1794 Wf| 288 1763 Wz| 1878 Number of 2-station scans: 440 Number of 3-station scans: 152 Number of 4-station scans: 108 Number of 5-station scans: 147 Number of 6-station scans: 175 Number of 7-station scans: 33 Number of 8-station scans: 0 Total # of scans, observations: 1055 6332 Average X-band SNRs by baseline | Ft Ht Kk Ny On Ts Wf Wz AVG ------------------------------------------------- Ft| 37 25 39 34 56 38 42 38 Ht| - 49 37 59 44 62 48 Kk| 50 34 83 39 52 54 Ny| 69 122 70 101 79 On| 82 50 87 63 Ts| 89 130 96 Wf| 76 60 Wz| 85 Average S-band SNRs by baseline | Ft Ht Kk Ny On Ts Wf Wz AVG ------------------------------------------------- Ft| 24 21 18 17 22 20 19 20 Ht| - 30 24 36 30 34 29 Kk| 34 24 64 35 32 40 Ny| 27 48 31 35 33 On| 34 24 31 27 Ts| 42 48 47 Wf| 32 31 Wz| 34 =========================================================== Recording mode Name Code GEOSX8N 8F Recording mode setup for: FORTLEZA HART15M KOKEE NYALES20 ONSALA60 TSUKUB32 WESTFORD WETTZELL Mode Tot.Rate Tot.BandW #BBC #bits Barrel Mk341:1 512 Mbits 256 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 19.13 11.48 30.61 =========================================================== Minor Options Astro Abs 3.00 BegScan Rel 1.00 EndScan Rel 1.00 NumObs Rel 1.00 StatIdle Abs 3.00 StatWt Abs 2.00 =========================================================== Major Options Subnet FtHtKkNyOnTsWfWz SkyCov Yes AllBlGood Yes MaxAngle 180.00 MinAngle 15.00 MinBetween 20 MinSunDist 4.00 MaxSlewTime 300 TimeWindow 1.00 MinSubNetSize 2 NumSubNet 1 Best 60 FillIn Yes FillMinSub 3 FillMinTime 120 FillBest 80 Add_ps 30.0 SNRWts Yes =========================================================== Tape types ID Station Tape length Density Passes Ft FORTLEZA Mark5A Ht HART15M Mark5B Kk KOKEE Mark5B Ny NYALES20 Mark5B On ONSALA60 Mark5A Ts TSUKUB32 K5 Wf WESTFORD Mark5B Wz WETTZELL Mark5A =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) X-band (ast_margin 0) S-band (ast_margin 0) Ft Ht Kk Ny On Ts Wf Ft Ht Kk Ny On Ts Wf Ht 20 Ht 15 Kk 20 20 Kk 15 15 Ny 20 20 20 Ny 15 15 15 On 20 20 20 20 On 15 15 15 15 Ts 20 20 20 20 20 Ts 15 15 15 15 15 Wf 20 20 20 20 20 20 Wf 15 15 15 15 15 15 Wz 20 20 20 20 20 20 20 Wz 15 15 15 15 15 15 15