Session Notes for TQAK Session session: tqak05
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: TQAK05 Description IVS-R1
Scheduler: NASA Correlator: WASH
Start: 2010-091-20:00:00 End: 2010-091-23:00:00
Current yyyyddd: 2010091 (2010.25) ( 15288 MJD, THUR 1APR.)
Greenwich sidereal time: 8:40: 0.00 (20: 0: 0 UT)
Sun's RA and DEC: 0h 44.1m 4d 44.2
===========================================================
Important Station Information
First observations
Observation listing from file ./tqak05.skd for experiment TQAK05
Source Start DURATIONS
name yyddd-hhmmss Hb Ho Kk Tc Wf
2141+175 10091-200000| 51 43 53 53|
3C446 10091-200307| 62 43 43 62 |
0215+015 10091-200451| 143 243 243|
1759-396 10091-200625| 43 43 |
1749+096 10091-200924| 43 43 43 |
End of listing.
===========================================================
Last observations
Observation listing from file ./tqak05.skd for experiment TQAK05
Source Start DURATIONS
name yyddd-hhmmss Hb Ho Kk Tc Wf
0529+483 10091-225843| 74 74|
End of listing.
Observation listing from file ./tqak05.skd for experiment TQAK05
Source Start DURATIONS
name yyddd-hhmmss Hb Ho Kk Tc Wf
2319+317 10091-224956| 192 84 182 192|
3C418 10091-225345| 43 43|
0104-408 10091-225431| 109 109 |
0552+398 10091-225543| 43 43|
0133+476 10091-225714| 43 43|
0529+483 10091-225843| 74 74|
End of listing.
===========================================================
SKED Summary from file ./tqak05.skd for experiment TQAK05
(all scans with at least one subnet station)
Average number of obs. per baseline per source(normalized by up-time) = 0.7
Min = 0.0 Max = 49.7 (Baseline Ho-Wf on 2319+317) RMS = 3.6
Total time: 180 minutes ( 3.0 hours).
Key: Hb=HOBART12 Ho=HOBART26 Kk=KOKEE Tc=TIGO Wf=WESTFORD
Hb Ho Kk Tc Wf Avg
% obs. time: 18 42 46 41 47 39
% cal. time: 2 4 7 4 7 5
% slew time: 7 43 31 10 21 23
% idle time: 72 10 16 44 25 34
total # scans: 25 42 72 38 72 49
# scans/hour : 8 14 24 13 24 17
Avg scan (sec): 76 108 68 118 70 87
# data tracks: 16 16 16 16 16
# Mk5 tracks: 16 16 16 16 16
Total GBytes: 69 164 177 161 183 151
Total GB(M5): 61 146 158 143 162 134
# 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: 669.8
# OF OBSERVATIONS BY BASELINE
| Hb Ho Kk Tc Wf StnTotal
-----------------------------------
Hb| 23 22 1 8 54
Ho| 20 20 7 70
Kk| 5 58 105
Tc| 18 44
Wf| 91
Number of 2-station scans: 83
Number of 3-station scans: 17
Number of 4-station scans: 8
Number of 5-station scans: 0
Total # of scans, observations: 108 182
===========================================================
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 70 36 66 46
Scans 25 42 72 38 72 49
% Eff 92.0 92.9 97.2 94.7 91.7 93.7
DistAvg 18.9 14.8 9.3 16.1 8.8 13.6
DistMax 60.7 45.2 26.2 49.0 36.4 43.5
Number of pixels 1692 Average Pixel radius 2.8 deg
WARNING: Sky coverage only optimization is specified!!
Condition number:0.1271E-07
Standard deviations of the unknown parameters:
HOBART26 ATM0 1.847 ps
HOBART26 ATM1 0.9182 ps/D
KOKEE ATM0 1.755 ps
KOKEE ATM1 1.014 ps/D
TIGOCONC ATM0 14.83 ps
TIGOCONC ATM1 4.507 ps/D
WESTFORD ATM0 3.872 ps
WESTFORD ATM1 2.132 ps/D
KOKEE CLK0 0.1147E-01 ns
KOKEE CLK1 0.1647 D-14
TIGOCONC CLK0 0.7894E-01 ns
TIGOCONC CLK1 0.2511 D-14
WESTFORD CLK0 0.1942E-01 ns
WESTFORD CLK1 0.2740 D-14
TIGOCONC U 21.67 mm
TIGOCONC E 6.254 mm
TIGOCONC N 6.491 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
Astro Abs 3.00
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