Session Notes for R1 (Rapid Turnaround Monday) session: r1969
Prepared by C. Thomas, NVI, Inc./GSFC
Refer to http://ivscc.gsfc.nasa.gov/program/descrip2020.html#r1
for the session purpose.
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----- Parameter listing --------------------------------------
Experiment: R1969 Description IVS-R1
Scheduler: NASA Correlator: BONN
Start: 2020-293-17:00:00 End: 2020-294-17:00:00
Current yyyyddd: 2020293 (2020.80) ( 19142 MJD, MON. 19OCT.)
Greenwich sidereal time: 18:54:30 (17:00:00 UT)
Sun's RA and DEC: 13h 39.4m -10d 19.2
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Important Station Information
The SEFDs for Ny Alesund were increased to 3000 for both
bands to compensate for their warm receiver.
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First observations
Source Start DURATIONS
name yyddd-hhmmss Ag Ft Ht Ma Ny Kv Wn Yg
0552+398 20293-170000| 182 150 182|
1741-038 20293-170000| 215 65 119 173 215 |
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Last observations
Source Start DURATIONS
name yyddd-hhmmss Ag Ft Ht Ma Ny Kv Wn Yg
1741-038 20294-165543| 25 25 |
1751+288 20294-165652| 183 183 |
NRAO512 20294-165701| 174 174 174 |
0727-115 20294-165723| 152 152|
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SKED Summary from file ./r1969.skd for experiment R1969
(all scans with at least one subnet station)
Average number of obs. per baseline per source(normalized by up-time) = 6.5
Min = 0.0 Max = 54.1 (Baseline Kv-Yg on 2052-474) RMS = 9.6
Total time: 1440 minutes ( 24.0 hours).
Key: Ag=AGGO Ft=FORTLEZA Ht=HART15M Ma=MATERA Ny=NYALES20
Kv=SEJONG Wn=WETTZ13N Yg=YARRA12M
Ag Ft Ht Ma Ny Kv Wn Yg Avg
% obs. time: 56 56 65 60 64 66 70 57 62
% cal. time: 2 3 4 4 4 4 5 3 3
% slew time: 4 36 21 29 17 16 8 10 18
% idle time: 36 4 9 6 15 14 17 29 17
total # scans: 196 239 333 351 307 308 413 260 300
# scans/hour : 8 10 14 15 13 13 17 11 13
Avg scan (sec): 249 204 169 147 179 184 146 189 182
# data tracks: 16 16 16 16 16 16 16 16
# Mk5 tracks: 16 16 16 16 16 16 16 16
Total TB(M5): 1.56 1.56 1.80 1.65 1.76 1.81 1.93 1.57 1.71
# OF OBSERVATIONS BY BASELINE
| Ag Ft Ht Ma Ny Kv Wn Yg Total
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Ag| 109 124 44 3 0 50 0 330
Ft| 101 114 68 5 120 7 524
Ht| 124 52 39 140 85 665
Ma| 186 67 324 33 892
Ny| 126 214 25 674
Kv| 92 169 498
Wn| 37 977
Yg| 356
Number of 2-station scans: 511
Number of 3-station scans: 200
Number of 4-station scans: 122
Number of 5-station scans: 51
Number of 6-station scans: 7
Number of 7-station scans: 0
Number of 8-station scans: 0
Total number of scans: 891
Total number of obs: 2458
Total integrated obs-time: 384696
Average obs-time: 156.5
Histogram of observation durations
Dur: 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400
#Obs: | 191| 141| 309| 231| 281| 187| 152| 117| 132| 125| 84| 78| 62| 78| 85| 41| 45| 37| 82|
Average X-band SNRs by baseline
| Ag Ft Ht Ma Ny Kv Wn Yg AVG
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Ag| 30 26 27 44 - 24 - 27
Ft| 52 54 32 25 48 27 44
Ht| 75 44 35 75 35 52
Ma| 51 34 109 36 73
Ny| 30 55 40 45
Kv| 35 34 33
Wn| 41 71
Yg| 35
Average S-band SNRs by baseline
| Ag Ft Ht Ma Ny Kv Wn Yg AVG
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Ag| 14 21 17 13 - 23 - 18
Ft| 32 21 18 18 28 19 23
Ht| 36 27 24 52 26 33
Ma| 24 19 52 18 34
Ny| 20 37 22 27
Kv| 27 18 21
Wn| 26 41
Yg| 21
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Recording mode
Name Code
GEOSX SX
Recording mode for: AGGO HART15M MATERA NYALES20 SEJONG WETTZ13N YARRA12M
Mode Tot.Rate #Chan Chan.BW Tot.BW #BBC #bits Tracks*(fan) Tot.tracks Barrel
Mk341:1 256 Mbps 16 8 Mhz 128 Mhz 14 1 16*(1) 16 NONE
X-band spanned bw= 720.0 MHz rms spanned bw= 277.7 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
10.00 6.00 16.00
Recording mode for: FORTLEZA
Mode Tot.Rate #Chan Chan.BW Tot.BW #BBC #bits Tracks*(fan) Tot.tracks Barrel
Mk341:2 256 Mbps 16 8 Mhz 128 Mhz 14 1 16*(2) 32 NONE
X-band spanned bw= 720.0 MHz rms spanned bw= 277.7 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
10.00 6.00 16.00
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Monitoring Sources
Source Min Max Actual #Num #Scans
2232-488 1.00 1.50 0.28 7 7
0451-282 1.00 1.50 0.73 18 9
2121+053 1.00 1.50 1.67 41 22
2121+547 1.00 1.50 0.69 17 7
1313-333 1.00 1.50 0.53 13 4
0009-148 1.00 1.50 0.41 10 3
1227+255 1.00 1.50 0.37 9 5
1221+809 1.00 1.50 0.28 7 5
0208-512 1.00 1.50 1.02 25 13
1622-253 1.00 1.50 0.28 7 3
Total 6.27 154 78
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Minor Options
Astro Abs 3.00
BegScan Rel 1.00
EndScan Rel 1.00
NumObs Rel 1.00
StatWt Abs 2.00
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Major Options
Subnet AgFtHtMaNyKvWnYg
SkyCov Yes
AllBlGood Yes
MaxAngle 180.00
MinAngle 15.00
MinBetween 20
MinSunDist 4.00
MaxSlewTime 300
TimeWindow 4.00
MinSubNetSize 2
NumSubNet 1
Best 60
FillIn Yes
FillMinSub 3
FillMinTime 120
FillBest 80
Add_ps 30.0
SNRWts Yes
SplitTwins No
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Weighted Station
1 AGGO 2.00
2 FORTLEZA 1.00
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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)
Ag Ft Ht Ma Ny Kv Wn Ag Ft Ht Ma Ny Kv Wn
Ft 15 Ft 13
Ht 15 20 Ht 13 15
Ma 15 20 20 Ma 13 15 15
Ny 15 20 20 20 Ny 13 15 15 15
Kv 15 20 20 20 20 Kv 13 15 15 15 15
Wn 15 20 20 20 20 20 Wn 13 15 15 15 15 15
Yg 15 20 20 20 20 20 20 Yg 13 15 15 15 15 15 15