[IGSMAIL-15] Data Flow to the CDDIS
Carey
Carey
Thu Jun 11 08:55:05 PDT 1992
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IGS Electronic Mail 11-JUN-1992 08:55:05 Message Number 15
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THIS FILE CONTAINS 2 MESSAGES
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>From: Carey Noll/CDDIS
Subject: Data Flow to the CDDIS
------------------------------
I thought I would add my response to the flurry of e-mail about what sites
are coming from where. Below is the list of sites from Peter's e-mail and the
corresponding CDDIS source.
Peter's
Station E-mail Where CDDIS gets it from
--------------------------- ----------- ------------------------
Canberra (Tidbinbilla) JPL JPL
Yaragadee JPL JPL
Madrid JPL JPL
Goldstone JPL JPL
Tahiti JPL
Hartebeestoeck JPL
Santiago JPL JPL
Usuda JPL JPL
Fairbanks JPL JPL
McMurdo JPL JPL
Pinyon Flat SIO JPL
Los Palmas (MAS PALOMAS?) Not seen it yet
Matera JPL and NGS
Kootwijk DELFT
Ny Alesund JPL
Tromso JPL and NGS
Onsala JPL
Metsahovi JPL and NGS
Wettzell JPL and NGS
Herstmonceux JPL and NGS
Hobart NGS
Wellington NGS
Townsville NGS
Kokee Park JPL
Yellowknife EMR and JPL
Penticton EMR and JPL
Algonquin EMR and JPL
Richmond NGS
Fortaleza Not seen it yet
Taipei (Taiwan/Tai Shi) NGS and JPL
Port Harcourt Not seen it yet
Tsukuba Not seen it yet
Orroral Not seen it yet
St Johns JPL
PGGA, CA (Scripps) JPL
Others stations delivered to CDDIS:
-----------------------------------
Pasadena JPL
Victoria JPL
Prince Alberhead JPL
NGS and EMR have only delivered data to the CDDIS during the week of the IGS
test. All data coming from JPL and Delft are PUT on the CDDIS on a daily basis.
Three of the sites delivered by both NGS and JPL come in with different names
(e.g., Wettzell is WETZ and WTZL, Matera is MATE and MATR, and Taiwan is TAIW
and T986) depending upon the data source. This could cause problems in the
future and should be resolved somewhere I would think!
Also responding to Loic Daniel, I thought maybe I would give everyone some
general info on the CDDIS GPS data archiving efforts. I have sent many folks
the info below on an individual basis. Since I don't want to publish
passwords, if anyone needs access to this data who hasn't already got it,
please let me know and I will send on a password. Right now our data holdings
are in RINEX and NON-COMPRESSED but tests have shown that the compressed data
will be ready for next week's data flow start (I think). Below are particulars
on retrieving data from CDDIS.
Username/Password: IGS/(ask Carey)
Access Supported: Remote logins (e.g., SET HOST and TELNET) and remote
file copies (e.g., COPY and FTP)
Main Directories: GPS1:[GPSDATA] and GPS2:[GPSDATA]
Subdirectories: .YYDDD.YYT or YYDDD.SUM where
YY is 2-digit year
DDD is 3-digit day of year
T is type of file (O for observation, N for navigation)
(e.g., GPS1:[GPSDATA.92055.92O] contains observation
data for day 55 of 1992)
.SUM subdirectory contains CDDIS-generated observation
summary files
There is a general 000README.FIRST file on each disk that will list the current
contents of our data holdings; some of the data may not currently be available
on-line. We can currently accomodate approximately two months worth of
uncompressed data on line at any one time. As the disks fill up, the older
data will be taken off-line (but can still be requested). I am interested in
any comments on these archives as well as transfer times.
Regards,
Carey Noll.
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>From: Yehuda Bock
Subject: Preparation for IGS Campaign at SIO
-----------------------------------
Introduction
------------
I will be leaving for field work in Indonesia on 13 June and will
not return until 24 July. In my absence, all messages to SIO
should be sent to the following individuals:
Jeff Genrich: SIO General Coordinator jeff at bull.ucsd.edu
Keith Stark: Data coordinator stark at bull.ucsd.edu
Peng Fang: Analysis coordinator pfang at bull.ucsd.edu
We are trying to test out our system before I leave on Saturday.
We have run into the following problems and questions which I
would like to share with the IGS community, to aid in the overall
preparation.
First to answer Loic Daniel's question about SIO archive:
Accessing the Scripps (SIO) PGGA/GRANER archive
-----------------------------------------------
Acronyms:
PGGA : Permanent GPS Geodetic Array in southern California
(see SIO's PGGA & Global Tracking Data bulletin distributed thru IGSMAIL,
& to answer George Preiss' question -- Message No. 13)
GARNER : Global Archive to support Regional Networks, Ephemerides & Earth
Rotation
Use anonymous ftp
address: teddy.ucsd.edu (132.239.13.4)
Login: anonymous
Password: your name
This account puts you directly at the top of the geodesy archives on the
Epoch (IGPP mass storage device). The global tracking data
are in directory "tracking". The PGGA data are in directory "pgga". The
tree structure then branches into year of data (eg 92data), followed
by format of data (raw rawrinex), followed by the site name.
For example, the Rinex data for 1992 day 150 at the JPL site is:
pgga/92data/rawrinex/jpl/jpl11501.92o
The archive is accessible 7 days a week, 24 hours a day, and will contain
all IGS core site data for the entire campaign.
Note that all data stored in 1992 are in compressed UNIX format. If you
are working on a DOS or VAX system, we can send you the appropriate
decompression routines.
Precise GPS orbits can be found under "garner_orbits". These files are in
NGS Precise Ephemeris Format (Standard Product 1). These orbits will be on line
during the IGS campaign.
The only commands anonymous ftp permits are: ls, cd, get, mget
The -i option of ftp prevents ftp from querying on each get or mget.
We would appreciate your telling us your usage of this facility.
Mail these comments to bock at bull.ucsd.edu and stark at bull.ucsd.edu
Address questions to: stark at bull.ucsd.edu
Site information
----------------
We would like to initiate the generation of a complete list of core sites with
the following information:
(1) Type of receiver operating (e.g., Rogue is not sufficient, is it
Rogue SNR-8, Mini-Rogue, Turbo-Rogue? -- Ashtech is not
sufficient, is it Ashtech LXII or Ashtech P-12?, etc.)
(2) When was the receiver placed in operation (dates)?
(3) Software version running on receiver. If upgraded when was it
upgraded?
(4) Unambiguous height information (RINEX standard preferred, that
is direct vertical height to antenna base, usually preamp base)
(5) When will data be available from site? (according to instructions
all data should be at global data centers within three days of
last observation time - is this correct?).
(6) ITRF coordinates for each site
(7) Ties for each site to VLBI/SLR marks
I would ask all participants to cross check the information below, and please
advise on changes via IGSMAIL. In particular, George Preiss can you check
some of these details with Ruth in your meeting tomorrow?
SITE_NAME CODE RECEIVER Vers Ant Hgt Type
-------- ---- -------- ---- ------- -----
JPL Mesa (PGGA), CA, USA jpl1 ROGUE SNR-8 7.0 0.0932 DHPAB
Pinyon 1 (PGGA), CA, USA pin1 ROGUE SNR-8 7.0 1.8435 DHPAB
Scripps 1 (PGGA), CA, USA sio1 ROGUE SNR-8 7.0 1.8458 DHPAB
Algonquin, Canada algo ROGUE SNR-8 ??? 0.1140 DHPAB
Canberra DSN, Australia ds42 ROGUE SNR-8 ??? 0.0000 ??? DHPAB
Fairbanks, AK, USA fair ROGUE SNR-8 7.0 0.1162 DHPAB
Goldstone DSN, California ds10 ROGUE SNR-8 ??? 0.0000 DHPAB
Hartebeesthoek, S. Africa hart ROGUE SNR-8 ??? ?????? DHPAB
Herstmonceux, UK hers Mini-Rogue ??? 0.2005 DHPAB
Hobart (Tasmania) Australia tas1 MINIMAC 2816AT 1.64 0.0000 L1PHC
Kokee Park, HI, USA kokr ROGUE SNR-8 7.0 0.0932 DHPAB
Kootwijk Obs., Netherlands kosg ROGUE SNR-8 ??? 0.1050 DHPAB
Madrid DSN, Spain ds60 ROGUE SNR-8 ??? 0.0000 DHPAB
Matera, Italy mate ROGUE SNR-8 ??? 0.2820 ??? DHPAB
McMurdo, Antarctica mcmu ROGUE SNR-8 ??? 0.0000 ??? DHPAB
Metsahovi, Finland mets ROGUE SNR-8 ??? 0.0000 ??? DHPAB
Mojave, CA, USA moj1 MINIMAC 2816AT 1.64 0.0000 L1PHC
Ny Alesund, Norway nall ROGUE SNR-8 ??? 1.8879 DHPAB
Onsala, Sweden onsa ROGUE SNR-8 7.0 0.9850 DHPAB
Orroral, Australia orro ASHTECH P-12 ??? 0.0000 ??? DHPAB
Penticton, Canada drao ROGUE SNR-8 ??? 0.1150 DHPAB
Richmond, FL, USA ric1 MINIMAC 2816AT 1.64 0.0000 L1PHC
Santiago, Chile sant ROGUE SNR-8 ??? 0.0932 DHPAB
Tahiti pama ROGUE SNR-8 ??? 0.0000 ??? DHPAB
Tai-Shi, Taiwan taiw Mini-Rogue ??? 1.7750 ??? DHPAB
Townsville, Australia town TRIMBLE 4000SST4.11 0.0000 L1PHC
Tromso, Norway trom ROGUE SNR-8 ??? 2.4734 DHPAB
Tsukuba-Kashima, Japan tsu1 MINIMAC 2816AT 1.64 0.0000 L1PHC
Usuda, Japan usud ROGUE SNR-8 ??? 0.0000 DHPAB
Wellington, New Zealand well TRIMBLE 4000SST4.11 0.0000 L1PHC
Westford, MA, USA wes1 MINIMAC 2816AT 1.64 0.0000 L1PHC
Wettzell, Germany wtz1 ROGUE SNR-8 ??? 0.0000 DHPAB
Yarragadee, Australia yar1 ROGUE SNR-8 7.0 0.0732 DHPAB
Yellowknife, Canada yell ROGUE SNR-8 ??? 0.1110 DHPAB
Los Palmas (Canary Is.) ???? ??????????? ??? ?????? ?????
St. Johns (our understanding is that it will this be an active station by
the start of the campaign)
We assume that these sites will not be operational (Is this correct?)
Fortaleza, Brazil ???? ????
Port Harcourt, Nigeria ???? ????
DHPAB Direct height to antenna preamp base (RINEX standard)
L1PHC L1 Phase Center
Reference to IGS Message #12 from Peter Morgan:
-----------------------------------------------
We're glad to hear that you are feeling better.
We have sent an Ashtech P-12 receiver to Australia with Paul Tregonning (UNSW).
The plan is to run the receiver at Darwin from the start of IGS campaign until
the end of Epoch '92. The receiver is scheduled to go to Cocos Is., next.
Question
--------
Where should the analysis centers deposit their IGS orbits? I understand to the
network centers. Is that JPL for SIO processing center? With what frequency?
We will be using NGS precise ephemeris format (Standard Product #1). Clyde Goad,
is this correct?
Naming convention for SIO products - Proposed
---------------------------------------------
Werner, please help us with this.
escyyaaa.bbb (Earth Rotation file)
pscyyaaa.bbb (Ephemeris file)
where:
sc -- Scripps
yy -- Year
aaa -- start day
bbb -- end day
Message to Ruth
---------------
The flow of data from McMurdo and Santiago sites has been very good, and
the version 7.0 release is a big improvement (except for raw data format).
Good work.
We have a solid block of data from about 30 sites, including PGGA. The
Vandenberg site is now operational.
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