IVS-OHIG92
(Continuous Observations of the Rotation of the Earth
and South Terrestical Reference Frame Network)
2014 Nov.18-19
doy 322-323
Institut for Geodesy and Geoinformtion (IGGB)
of the University of Bonn, Germany
Nominal Start Time: 2014-322-1730 UT
Nominal End Time: 2014-323-1730 UT
Duration: 24.0 hr
Correlator: Bonn
Participating stations:
===================
Ft FORTLEZA
Ht HART15M
Hb HOBART12
Ke KATH12M
Kk KOKEE
Sy SYOWA
Ww WARK12M
Yg YARRA12M
Purpose
=======
The purpose of the IVS-OHIG (Southern Terrestrial Reference Frame) sessions
is to tie together optimally the sites in the southern hemisphere.
Because these sessions concentrate on the southern sites and do not use
observing time to accurately tie these sites to far northern sites (as
the Global Sessions do) they should yield a very accurate regional TRF
around the South Pole.
Schedule
========
This is a schedule generated with the automatic mode of sked using
the variable scan length with a minimum of 60 seconds. The most recent
and updated source flux models are included. SNR goals are 20/18 at
X-band and 20/18 at S-band for all stations.
The predicted SNRs used include a 30 ps noise contribution added
in quadrature, which is a typical size for the reweight constants
size for the reweight constants required in SOLVE solutions.
This schedule was optimized by different features:
- the covariance analysis during schedule generation considers
the previous 2 hours of observations,
- minor SKED optimization parameters
. maximum number of observations,
were optimized over the best (in a covariance sense) 75% of
the possible observations, this produces a somewhat more even
sky distribution,
- observations were weighted by their expected SNRs,
- 30 ps noise contribution added,
- mimimum time between observations of the same radio source was
set to 20 min
- use of CvgONLY in order to improve the geometry of observation
This schedule was made using 60 sources which helped improve the sky
coverage.
Session Notes for session: ohig92
===========================================================
Experiment: OHIG92 Description IVS-OHIG92
Scheduler: IGGB/muesk Correlator: BONN
Start: 2014-322-17:30:00 End: 2014-323-17:30:01
Current yyyyddd: 2014322 (2014.88) ( 16980 MJD, TUES 18NOV.)
===========================================================
There are no observations for Kokee from 18:20 U.T.
to 19:40 U.T. Wettzell will participate in the
intensive session during this 1.5 hour period.
===========================================================
First observations
Observation listing from file ohig92.skd for experiment OHIG92
Source Start DURATIONS
name yyddd-hhmmss Ft Ht Hb Ke Kk Sy Ww Yg
0003-066 14322-173000| 462 462 |
0834-201 14322-173000| 707 640 220 840 840 614|
Last observations
2255-282 14323-171110| 806 806 |
0420-014 14323-171923| 139 206 206 |
0552+398 14323-172408| 114 142 326 326|
0119+115 14323-172512| 242 242 |
===========================================================
Average number of obs. per baseline per source(normalized by up-time) = 4.3
Min = 0.0 Max = 44.3 (Baseline Ht-Ww on 1424-418) RMS = 7.8
Total time: 1439 minutes ( 24.0 hours).
Key: Ft=FORTLEZA Ht=HART15M Hb=HOBART12 Ke=KATH12M Kk=KOKEE
Sy=SYOWA Ww=WARK12M Yg=YARRA12M
Ft Ht Hb Ke Kk Sy Ww Yg Avg
% obs. time: 64 42 72 78 57 68 75 69 66
% cal. time: 2 3 2 2 2 2 2 2 2
% slew time: 29 14 6 6 14 2 5 7 11
% idle time: 4 40 19 13 26 26 17 21 21
total # scans: 167 223 199 189 186 170 172 205 188
# scans/hour : 7 9 8 8 8 7 7 9 8
Avg scan (sec): 332 164 312 354 263 348 376 289 304
# data tracks: 16 16 16 16 16 16 16 16
# Mk5 tracks: 16 16 16 16 16 16 16 16
Total TBytes: 1.0 0.7 1.1 1.2 0.9 1.1 1.2 1.1 1.0
# OF OBSERVATIONS BY BASELINE
| Ft Ht Hb Ke Kk Sy Ww Yg Total
--------------------------------------------------
Ft| 96 2 0 58 41 3 8 208
Ht| 35 41 0 107 18 68 365
Hb| 134 73 47 130 132 553
Ke| 74 30 99 134 512
Kk| 14 87 44 350
Sy| 38 66 343
Ww| 81 456
Yg| 533
Total number of scans: 550
Total number of obs: 1660
Total integrated obs-time: 448509
Average obs-time: 270.2
Histogram of observation durations
===========================================================
Recording mode
Name Code
EUR2-SX SX
Recording mode setup for:
FORTLEZA SYOWA
Mode Tot.Rate Tot.BandW #BBC #bits Barrel
Mk341:2 128 Mbits 64 MHz 14 1 NONE
Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed
4.00 MHz 1 16(*2) 32 0.00
X-band spanned bw= 360.0 MHz rms spanned bw= 140.2 MHz
S-band spanned bw= 80.0 MHz rms spanned bw= 30.2 MHz
Effective number of 1-bit channels recorded per sub-pass
X S Total
10.00 6.00 16.00
Recording mode setup for:
HART15M HOBART12 KATH12M KOKEE WARK12M YARRA12M
Mode Tot.Rate Tot.BandW #BBC #bits Barrel
Mk341:1 128 Mbits 64 MHz 14 1 NONE
Chan.BW #Subpasses Tracks(*fan) Tot.tracks Speed
4.00 MHz 1 16(*1) 16 0.00
X-band spanned bw= 360.0 MHz rms spanned bw= 140.2 MHz
S-band spanned bw= 80.0 MHz rms spanned bw= 30.2 MHz
Effective number of 1-bit channels recorded per sub-pass
X S Total
10.00 6.00 16.00
===========================================================