Fullrate Transmission and Availability

At the ILRS meetings in Nice during the EGS General Assembly in Spring 2002 it was decided to archive the full-rate data again beginning March 31st, 2003. This was announced at the ILRS 13th International Laser Ranging Workshop in Washington, October 07-11, 2002. Herewith the details of full-rate data delivery and file naming convention are given (reference SLRMails #1006 and #1058):

1. Full-rate data delivery

Each ILRS SLR station sends a daily file for each satellite to the corresponding Global Data Centers (EDC or HTSI/CDDIS), containing all passes starting the same day.

The full-rate data should be sent via ftp to the following incoming directories at HTSI/CDDIS and EDC respectively:

HTSI: [fg_normpts.fullrate] (same path as for normal points, but other directory)

EDC : incoming/laser/frdata/

The Global ILRS Data Centers will generate monthly files of the daily files.

The daily and monthly full-rate data files will be available at CDDIS and EDC respectively:

CDDIS: /pub/slr/slrfr/sname/yyyy/   (monthly files)
/pub/slr/slrfr/sname/daily   (daily files)
EDC  : pub/laser/frdata/daily/	    (daily files
pub/laser/frdata/monthly/    (monthly files)

2. File name convention

'statno'_'yy''mm''dd'_'r'.'satnam''.Z'

with 'statno' : CDP station number
'yy'	 : two-digit year
'mm'	 : month
'dd'	 : day
'r'	 : relase flag ('a' = first release, 'b' = second release, etc.)
'satnam' : satellite name from the list below

The file has to be UNIX-compressed (extension '.Z'). For DOS executables of the UNIX compression see e.g.: ftp://igscb.jpl.nasa.gov/igscb/software/compress/dos

The approved satellite names are (lowercase, no dashes or other special characters):

adeos
adeos2
ajisai
beaconc
champ
diadem1c
diadem1d
envisat
ers1
ers2
etalon1
etalon2
fizeau
geos3
gfo1
gfz1
glonass## (where ## is the 2-digit GLONASS satellite number)
gpb
gps35
gps36
gracea
graceb
icesat
jason1
lageos1
lageos2
larets
lre
meteor3
meteor3m msti
reflector
resurs
starlette
starshine2
starshine3
stella
sunsat
tips
topex
westpac
zeia

Example:

Station Herstmonceux, satellite LAGEOS-1, all passes starting on Nov. 20, 2002, first release:

7840_021120_a.lageos1.Z

3. Calibration data

It was decided not to archive the calibration data. If they are needed, the corresponding SLR station should be contacted.

Responsible Government Official: Carey Noll
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