Session Notes for TQAK Session session: tqak03 Prepared by John Gipson, NVI, Inc./GSFC This is a "target of opportunity" schedule. The purpose of the sesion is to The network is to try to determine Tigo's position after the quake. We use the network Hb-Ho-Kk-Tc-Wf. Hb is the new 10 meter antenna at Hobart. It is not tagged but is scheduled with lower SNR targets of 12 for both X and S. The sources were chosen using Best 160. This scheduled used the following strategy: 1. The whole network was scheduled for 10 minutes. 2. HoTc and KkWz were scheduled as independent subnets for 10 minutes 3. Steps 1 and 2 were repeated until the end of the session. The reason for this strategy is that in tqak01 Hobart mostly observed with Wettzell, and had very few observations on Tigo. Also, Westford very seldom observed with Kokee alone. This led to large wholes in the sky coverage at all of the stations. =========================================================== ----- Parameter listing -------------------------------------- Experiment: TQAK03 Description IVS-R1 Scheduler: NASA Correlator: WASH Start: 2010-085-20:00:00 End: 2010-085-23:00:00 Current yyyyddd: 2010085 (2010.23) ( 15282 MJD, FRI. 26MAR.) Greenwich sidereal time: 8:16: 0.00 (20: 0: 0 UT) Sun's RA and DEC: 0h 22.2m 2d 24.2 =========================================================== Important Station Information First observations Observation listing from file ./tqak03.skd for experiment TQAK03 Source Start DURATIONS name yyddd-hhmmss Hb Ho Kk Tc Wf 3C446 10085-200000| 62 43 43 62 43| 0420-014 10085-200155| 45 45| 0607-157 10085-200318| 43 43| 1606+106 10085-200356| 115 64 115 | 0727-115 10085-200437| 43 43| End of listing. =========================================================== Last observations Observation listing from file ./tqak03.skd for experiment TQAK03 Source Start DURATIONS name yyddd-hhmmss Hb Ho Kk Tc Wf 0059+581 10085-225804| 43 43| End of listing. Observation listing from file ./tqak03.skd for experiment TQAK03 Source Start DURATIONS name yyddd-hhmmss Hb Ho Kk Tc Wf 0552+398 10085-225335| 43 43| 0104-408 10085-225359| 110 110 | 0133+476 10085-225506| 43 43| 0716+714 10085-225637| 43 43| 0308-611 10085-225727| 135 135 | 0059+581 10085-225804| 43 43| End of listing. =========================================================== SKED Summary from file ./tqak03.skd for experiment TQAK03 (all scans with at least one subnet station) Average number of obs. per baseline per source(normalized by up-time) = 0.6 Min = 0.0 Max = 68.6 (Baseline Kk-Wf on 0227-369) RMS = 3.6 Total time: 179 minutes ( 3.0 hours). Key: Hb=HOBART12 Ho=HOBART26 Kk=KOKEE Tc=TIGO Wf=WESTFORD Hb Ho Kk Tc Wf Avg % obs. time: 19 45 46 43 46 40 % cal. time: 2 4 6 4 7 5 % slew time: 6 43 29 11 22 23 % idle time: 72 7 17 41 24 33 total # scans: 24 42 68 40 70 48 # scans/hour : 8 14 23 13 23 16 Avg scan (sec): 87 114 73 117 71 91 # data tracks: 16 16 16 16 16 # Mk5 tracks: 16 16 16 16 16 Total GBytes: 75 173 179 168 178 155 Total GB(M5): 67 153 159 149 158 137 # of tapes : 1.0 1.0 1.0 1.0 1.0 tape change times (hhmm): Total number of tapes: 5.0 Total GBytes (M5) recorded: 686.7 # OF OBSERVATIONS BY BASELINE | Hb Ho Kk Tc Wf StnTotal ----------------------------------- Hb| 20 22 1 9 52 Ho| 18 23 5 66 Kk| 3 55 98 Tc| 18 45 Wf| 87 Number of 2-station scans: 83 Number of 3-station scans: 19 Number of 4-station scans: 4 Number of 5-station scans: 1 Total # of scans, observations: 107 174 =========================================================== Coverage HOBART12 HOBART26 KOKEE TIGOCONC WESTFORD Average PixMut 781 781 761 708 641 734 PixVis 781 781 781 781 781 781 % MutVis 100.0 100.0 97.4 90.7 82.1 94.0 PixCvred 23 39 63 36 63 44 Scans 24 42 68 40 70 48 % Eff 95.8 92.9 92.6 90.0 90.0 92.3 DistAvg 18.6 14.9 8.9 15.0 8.4 13.2 DistMax 65.8 51.3 23.7 48.1 23.7 42.5 Number of pixels 1692 Average Pixel radius 2.8 deg WARNING: Sky coverage only optimization is specified!! Condition number:0.1616E-07 Standard deviations of the unknown parameters: HOBART26 ATM0 2.045 ps HOBART26 ATM1 0.9642 ps/D KOKEE ATM0 1.832 ps KOKEE ATM1 0.9424 ps/D TIGOCONC ATM0 12.67 ps TIGOCONC ATM1 3.788 ps/D WESTFORD ATM0 2.871 ps WESTFORD ATM1 1.851 ps/D KOKEE CLK0 0.1045E-01 ns KOKEE CLK1 0.1730 D-14 TIGOCONC CLK0 0.6830E-01 ns TIGOCONC CLK1 0.2099 D-14 WESTFORD CLK0 0.1853E-01 ns WESTFORD CLK1 0.2789 D-14 TIGOCONC U 20.82 mm TIGOCONC E 4.448 mm TIGOCONC N 7.278 mm =========================================================== Recording mode Name Code GEOSX SX Recording mode setup for: HOBART12 HOBART26 KOKEE TIGOCONC WESTFORD Mode Tot.Rate Tot.BandW #chan #bits Barrel Mk341:2 256.000 Mbits 128.000 MHz 14 1 NONE Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed 8.00 MHz 1 16(*2) 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 channels recorded per sub-pass X S Total 10.000 6.000 16.000 =========================================================== Minor Options Option Norm Wt Aux_Parm EndScan Rel 1.00 NumObs Rel 1.00 StatIdle Abs 3.00 StatWt Abs 4.00 FFTFF =========================================================== Major Options Subnet HbHoKkTcWf SkyCov Yes AllBlGood Yes MinAngle 15 MinBetween 15 MinSunDist 15 MaxSlewTime 300 TimeWindow 24.00 MinSubNetSize 2 NumSubNet 1 Best 30 FillIn Yes FillMinSub 2 FillMinTime 120 FillBest 80 Add_ps 30.0 SNRWts Yes =========================================================== Tape types ID Station Tape length Density Passes Hb HOBART12 Mark5B Ho HOBART26 Mark5A Kk KOKEE Mark5A Tc TIGOCONC Mark5A Wf WESTFORD Mark5A =========================================================== SNR Targets Minimum SNR by baseline for multi-baseline scans X-band (margin 0) S-band (margin 0) Hb Ho Kk Tc Hb Ho Kk Tc Ho 12 Ho 12 Kk 12 20 Kk 12 15 Tc 12 15 15 Tc 12 12 12 Wf 12 20 20 15 Wf 12 15 15 12