[IGSMAIL-123] CDDIS GPS Data Holdings for IGS Week 18/GPS Week 0666
Carey
Carey
Thu Oct 22 17:34:07 PDT 1992
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IGS Electronic Mail 22-OCT-1992 17:34:07 Message Number 123
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THIS FILE CONTAINS 2 MESSAGES
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^From: Carey Noll/CDDIS
Subject: CDDIS GPS Data Holdings for IGS Week 18/GPS Week 0666
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Current IGS GPS Data Holdings (as of 22-Oct-92 07:10)
IGS Week 18/GPS Week 0666 (October 11 thru 17, 1992; Days 285 thru 291)
2 2 2 2 2 2 2
Mon. 8 8 8 8 8 9 9 No.
Site Name Name Receiver 5 6 7 8 9 0 1 Sites
------------------ ---- -------- --- --- --- --- --- --- --- -----
Albert Head ALBH Rogue X X X X X X X 7
Algonquin ALGO Rogue X X X X X X X 7
Fairbanks FAIR Rogue X X X X X X X 7
Goldstone GOLD Rogue X X X X X X X 7
Graz GRAZ Rogue X X X X X X X 7
Hartebeesthoek HART Rogue X X X X X X X 7
Harvest Platform HARV Rogue - X - X X X X 5
Herstmonceux HERS Rogue X X X X X X X 7
Hobart HOBA Minimac X X X - X X X 6
Kootwijk KOSG Rogue X X X X X X X 7
Madrid MADR Rogue X X X X X X X 7
Maspalomas MASP Rogue X X X X X X X 7
Matera MATE Rogue X X X X X X X 7
McMurdo MCMU Rogue X X X X X X X 7
Metsahovi METS Rogue X X X X X X X 7
Ny Alesund NYAL Rogue X X X X X X X 7
Onsala ONSA Rogue X X X X X X X 7
Pamate PAMA Rogue X X X X X X X 7
Pasadena JPLM Rogue X X X X X X X 7
Penticton DRAO Rogue X X X X X X X 7
Quincy QUIN Rogue X X X X X X X 7
Saint John's STJO Rogue X X X X X X X 7
Santiago SANT Rogue - X X X X X X 6
Taiwan TAIW Rogue X X X X X X X 7
Tidbinbilla TIDB Rogue X X X X X X X 7
Townsville TOWN Trimble X X X X X X X 7
Tromso TROM Rogue X X X X X X X 7
Tsukuba TSUK Minimac X X X X X X - 6
Usuda USUD Rogue X X X X X X X 7
Wellington WELL Trimble X X X X X X X 7
Westford WES1 Minimac X X X X X X X 7
Wettzell WETT Rogue X X X X X X X 7
Yaragadee YAR1 Rogue X X X X X X X 7
Yellowknife YELL Rogue X X X X X X X 7
Zimmerwald ZIMM Trimble X X X X X X X 7
------------------ ---- -------- --- --- --- --- --- --- --- -----
Totals: 35 stations 33 35 34 34 35 35 34 240
Notes: CDDIS disk archive status:
GPS1:[GPSDATA] directory contains days 281 and on
GPS2:[GPSDATA] directory contains days 261 thru 280
GPS3:[PRODUCTS] directory contains IGS products
GPS3:[IGSMAIL] directory contains IGS MAIL messages and index
CIGNET has submitted Bejing (GV2A) data to the CDDIS for days 209 thru
217 in receiver format (Ashtech); CDDIS is currently reformatting
the data. Please advise the CDDIS if you wish copies of these data.
Beijing has submitted data from Nanjing (HT15) for days 206 thru 222 in
receiver format (Ashtech); CDDIS has reformatted the data.
Please advise the CDDIS if you wish copies of these data.
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^From: Sandor Frey
Subject: ESA/ESOC analysis report
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ANALYSIS CENTRE: ESA/ESOC
-------------------------
OUTLINE OF THE ESTIMATION OF GPS-ORBITS AND EARTH ROTATION PARAMETERS AT THE
ESOC PROCESSING CENTER FOR IGS
J.M.Dow, S.Casotto, J.Feltens, S.Frey, C.Garcia-Martinez, T.Martin-Mur
Description of analysis for period 1992 October 11 - 17
1. SOFTWARE USED: GPSOBS/BAHN5
2. MODELS USED AND PARAMETERS ESTIMATED/FIXED
For a description of models and parameters we are using ==> see IGS-Mail 51
For updates of the models and parameters used =============> see IGS-Mail 114
Starting with this week (day 285) we are using 20 degrees as the elevation
cutoff angle (instead of 10 degrees as announced in the IGS-Mail 51)
* * *
To check the validity of our improved orbits we compare for every day the
orbits propagated from the previous day with the orbits obtained in BAHN.
This comparison gives rms of the differences less than (1,3,8) meters in the
radial, cross track and along track components respectively for days without
A/S, and (2,6,20) meters for A/S days. In case of a satellite with
unusually high difference we can suppose that it's orbit is badly determined.
On 13 October (day 287) the satellite SV-26 (PRN 26) was repositioned at
about 20:25 UTC, and we have estimated that an along track manoeuvre of
+ 20.85 +- 0.04 mm/sec was performed. With this manoeuvre the fit is good
after 20:25 and for the following day.
On 16 October (day 290) the satellite SV-13 (PRN 2) was unusable from 7:49
to 17:37 UTC, and the comparison of orbits shows rms of (2,7,20) meters for
the SV-13 on this day.
3. GROUND STATIONS (if being estimated, one position (X,Y,Z) every day):
The following table gives an overview over the ground stations, that have
been included into the GPS-data processing at ESOC. Except where otherwise
noted ("remarks"), corrections are taken from IGS Mail No. 90 - IGS site
information and coordinates,updated version of IERS/IGS Tables in IGS Mail
No. 65 - (Boucher and Altamimi).
__________________________________________________________________________
| | | GPS WEEK 666 |
| | | 2 2 2 2 2 2 2 |
| | | 8 8 8 8 8 9 9 |
SITE | COUNTRY |CODE| 5 6 7 8 9 0 1 | REMARKS
--------------------|-------------|----|---------------------|------------
Algonquin | Canada |ALGO| F F F F F F F |
CANB/Tidbinbilla | Australia |TIDB| e e e e e e e |
Penticton | Canada |DRAO| F F F F F F F |
Fairbanks | U.S.A/Alaska|FAIR| F F F F F F F |
Goldstone | U.S.A. |GOLD| F F F F F F F |
Hartebeesthoek | South Africa|HART| F F F F F F F |
Herstmonceux | U.K. |HERS| F F F F F F F |
Kokee Park | U.S.A/Hawaii|KOKB| ------------------- |
Kourou (ESA) | French Guyan|KOUR| ------------------- | own estim.
Madrid | Spain |MADR| F F F F F F F |
Maspalomas (ESA) | Spain/Can.Is|MASP| e e e e e e e |
Matera | Italy |MATE| F F F F F F F |
McMurdo | Antarctica |MCMU| e e e e e e e |
Metsahovi | Finland |METS| F F F F F F F |
Ny Alesund/Spitzb.| Norway |NYAL| e e e e e e e |
Onsala | Sweden |ONSA| F F F F F F F |
Pamate/Tahiti | France |PAMA| e e e e e e e |
Santiago | Chile |SANT| ----- F F F F F |
St.John's, NF | Canada |STJO| e e e e e e e |
Tai-Shi | Taiwan |TAIW| ----- e e e e -- |
Usuda | Japan |USUD| e e e e e e e |
Wettzell | Germany |WETT| F F F F F F F |
Yaragadee | Australia |YAR1| F F F F F F F |
Yellowknife | Canada |YELL| F F F F F F F |
with: "F" ... coordinates of ground station kept fixed,
"e" ... coordinates of ground station estimated,
"-" ... ground station not included on that day.
4. PRODUCTS GENERATED
The following products are generated and stored in CDDIS at NASA/GSFC:
ESA0666*.EPH - Precise GPS orbits, * = 0 for Sunday ,..., 6 for Saturday
ESA06667.ERP - Earth rotation results for week beginning 1992 October 11
ESA06667.SUM - The name of this text file
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