Session Notes for R1 (Rapid Turnaround Monday) session: r1975
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: R1975 Description IVS-R1
Scheduler: NASA Correlator: BONN
Start: 2020-335-17:00:00 End: 2020-336-17:00:00
Current yyyyddd: 2020335 (2020.92) ( 19184 MJD, MON. 30NOV.)
Greenwich sidereal time: 21:40:06 (17:00:00 UT)
Sun's RA and DEC: 16h 29.0m -21d 47.4
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Important Station Information
Ny Alesund-South was tagged along to this schedule file.
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First observations
Source Start DURATIONS
name yyddd-hhmmss Ht Ma Ns Kv Wn Yg
0003-066 20335-170000| 177 177 177 169|
0814+425 20335-170339| 109 109 29 109|
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Last observations
Source Start DURATIONS
name yyddd-hhmmss Ht Ma Ns Kv Wn Yg
1749+096 20336-164648| 20 38 38 |
1751+288 20336-164807| 26 26 |
2000+472 20336-164935| 20 20 |
0048-427 20336-165059| 168 168|
1636+473 20336-165059| 39 39 |
1929+226 20336-165255| 87 87 |
0458-020 20336-165502| 293 293|
2214+350 20336-165529| 266 266 266 |
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SKED Summary from file ./r1975.skd for experiment R1975
(all scans with at least one subnet station)
Average number of obs. per baseline per source(normalized by up-time) = 13.5
Min = 0.0 Max = 55.0 (Baseline Ns-Yg on 0458-020) RMS = 16.4
Total time: 1440 minutes ( 24.0 hours).
Key: Ht=HART15M Ma=MATERA Ns=NYALE13S Kv=SEJONG Wn=WETTZ13N
Yg=YARRA12M
Ht Ma Ns Kv Wn Yg Avg
% obs. time: 58 55 43 65 68 69 60
% cal. time: 4 5 2 3 5 3 4
% slew time: 19 36 1 14 8 11 15
% idle time: 18 4 53 17 18 16 21
total # scans: 318 425 162 283 448 273 318
# scans/hour : 13 18 7 12 19 11 13
Avg scan (sec): 158 112 231 197 131 218 174
# data tracks: 16 16 16 16 16 16
# Mk5 tracks: 16 16 16 16 16 16
Total TB(M5): 1.61 1.52 1.20 1.78 1.87 1.90 1.65
# OF OBSERVATIONS BY BASELINE
| Ht Ma Ns Kv Wn Yg Total
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Ht| 228 45 68 214 160 715
Ma| 146 154 408 107 1043
Ns| 141 153 57 542
Kv| 190 162 715
Wn| 93 1058
Yg| 579
Number of 2-station scans: 262
Number of 3-station scans: 180
Number of 4-station scans: 104
Number of 5-station scans: 69
Number of 6-station scans: 14
Total number of scans: 629
Total number of obs: 2326
Total integrated obs-time: 359224
Average obs-time: 154.4
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: | 196| 179| 159| 226| 344| 133| 153| 115| 125| 186| 144| 83| 41| 28| 13| 23| 38| 42| 98|
Average X-band SNRs by baseline
| Ht Ma Ns Kv Wn Yg AVG
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Ht| 51 95 43 58 46 54
Ma| 80 40 80 33 63
Ns| 53 104 67 79
Kv| 45 31 42
Wn| 41 69
Yg| 41
Average S-band SNRs by baseline
| Ht Ma Ns Kv Wn Yg AVG
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Ht| 25 37 24 40 25 30
Ma| 31 17 41 17 30
Ns| 22 55 24 35
Kv| 27 17 21
Wn| 28 39
Yg| 22
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Recording mode
Name Code
GEOSX SX
Recording mode for: HART15M MATERA 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: NYALE13S
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
0334-546 1.00 1.50 0.00 0 0
1143-696 1.00 1.50 0.00 0 0
1706-174 1.00 1.50 0.39 9 3
OK290 1.00 1.50 0.69 16 10
1936+046 1.00 1.50 0.39 9 3
1929-457 1.00 1.50 0.00 0 0
1823+689 1.00 1.50 0.00 0 0
2243-123 1.00 1.50 1.29 30 9
1423+146 1.00 1.50 0.39 9 3
0342+147 1.00 1.50 0.69 16 8
Total 3.83 89 36
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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 HtMaNsKvWnYg
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
El_noise 0.0
SNRWts Yes
SplitTwins No
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Weighted Station
6 YARRA12M 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)
Ht Ma Ns Kv Wn Ht Ma Ns Kv Wn
Ma 20 Ma 15
Ns 20 20 Ns 15 15
Kv 20 20 20 Kv 15 15 15
Wn 20 20 20 20 Wn 15 15 15 15
Yg 20 20 20 20 20 Yg 15 15 15 15 15