[IGSMAIL-296] Epoch '92 Site Catalog

[R.]

IGS Electronic Mail       30-JUL-1993 09:55:22       Message Number 296
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>From: R. Neilan, C. Noll
Subj: Epoch '92 Site Catalog
----------------------------

Dear Colleagues, 

It is now almost one year since the Epoch'92 campaign was conducted, and 
to date we still have little information available for an Epoch catalog.  

The planning of the IGS campaign for last summer specifically included a 
time period (designated Epoch'92) where the IGS routine processing could 
be depended upon for the densification of the network in support of 
scientific investigations.  One of the questions that faced the 
Oversight Committee planning the campaign was how to handle all of the 
IGS Epoch'92 data -- no agency wanted to be responsible for, nor could 
afford, the massive task of collecting all of the data.  JPL's previous 
experience with the GIG'91 GPS campaign in support of the IERS 
demonstrated that this was an extremely difficult and costly task. The 
IGS subsequently recommended that regional coordinators be established 
to catalog the data for a particular global region.  It was up to the 
regional coordinator to decide whether or not to collect all of the data 
at a regional data center, or simply to keep track of the location of 
the data.  This scheme has met with limited success and we are still in 
the process of cataloging the data from Epoch '92.

Carey Noll has agreed to work on the preparation of the EPOCH '92
catalog.  We would like to complete this as soon as possible and
therefore solicit the information below from all participants.  Each
regional coordinator and responsible agency participating in the
campaign is requested to collect the information described BELOW, as
well as providing the following: 

     - GPS data location (RINEX format)
     - GPS Observation and Daily Log Sheets
     - GPS Station Information Report
     - Map of the Network

THIS IS THE CURRENT LIST OF CAMPAIGNS DURING EPOCH '92:

Project     /     Region   /  Number of Stations  / Point of Contact
--------------------------------------------------------------------
Australia       Australia           45             AUSLIG
Bar Giyyora      Israel             1              IfAG/CDDIS
Brazil           Brazil             3              INPE/CDDIS
Brussels         Austria            1              ROB
DMA Tracking     Global             5              DMA
DORIS            Global            14              IGN
Tien-Shan         CIS               40             GFZ
WINGS            Japan             170             ERI/Univ. Tokyo

If you are aware of any GPS observations that took place during this 
time, please pass on the information.  Not only can this help with the 
extension of the reference frame, but also in the evaluation of the
use of IGS orbit products. 

Thanks very much for your cooperation,
Ruth and Carey


======================================================================
Ruth E. Neilan                     Telephone:   (818)-354-8330
IGS Central Bureau                 FAX:         (818)-393-6686
Jet Propulsion Laboratory          Email:       ren at logos.jpl.nasa.gov
4800 Oak Grove Dr.
Pasadena, CA 91109
======================================================================

======================================================================
Carey E. Noll                     Telephone:  (301)-286-9283
IGS Global Data Center/CDDIS      FAX:        (301)-286-4943
Code 902.2                        Email:      noll at cddis.gsfc.nasa.gov
NASA/GSFC
Greenbelt, MD 20771
======================================================================

IGSMAIL
cc:
Regional Coordinators:
M. Campos
J. Chen (fax)
D. Delikarouglou
B. Engen
J. Manning (to Martin Hendy)
B. Minster
S. Tatevian

EPOCH INFORMATION FORM 
Please overtype the information fields and return to both Carey and me 
via e-mail (an example is shown for the Parana, Brazil station):

REQUESTED FIELD:                        INFORMATION
**************************************************************
4-Character ID                             : PARA
Station Name/Geographic Location           : Parana
Country                                    : Brazil
Mark Inscription &/or
Monument Number                            : 25 91105
Latitude                                   : -25.4479
Longitude  (East)                          : -49.2305
Receiver Type                              : Trimble 4000 STD
Receiver Source Agency                     : UFPR
Observing Agency                           : UFPR
Data Center                                : UFPR
Processing Center                          : IBGE/UFPR
Start Date                                 : 25-July-92
End Date                                   : 08-August-92
Number of Days                             : 15
Location of Experiment Infomration         : IBGE
(mark with X)
     Observing Logs                        : X
     Station Information                   : X
     GPS Data                              : X
     Format                                : RINEX
Regional Data Center                       : IBGE
Network Data Center                        : CDDIS
Co-location (mark with X)   
     VLBI                                  :
     SLR                                   :
     DORIS                                 :
     PRARE                                 :
Other Instrumentation                      :
Operations contact                        Milton Campos
        Agency    : Instituto Brasileiro de Geografia de Estatistica 
                  :  (IBGE)/ Centro Politecnico Dpto. Geosciencias             
       
        Address   : Caixa Postal 19098
                  : 81531 Curitaba PR Parana, BRAZIL             
        Telephone : 55-41-366-2323 ext.165
        Fax       : 55-41-264-2243 
        E-mail    : bitnet: milton at brufpr