Subject: RE: More data for the IDS analysis campaign?
From: Jean-Jacques Valette <[email-masked]>
To: [email-masked], [email-masked]
Cc: [email-masked], [email-masked], [email-masked], [email-masked], [email-masked], [email-masked], sabine houry <[email-masked]>
Date: Mon, 21 Jun 2004 17:23:21 +0200

Frank,

This afternoon, with Sabine who works at SOD, we have looked at the ZOOM 
software. The figures for the vectors of the DORIS Ref. Point and of the 
2GHz Center of phase versus the Plateform ref. point are identical in the 
programs and in the documentation.

One point may be the evolution of the Center of mass to the Plateform ref. 
point vector since the initial estimation. It is of 42 mm in Z, as shown in 
the attached file. The automatic delivery of those center of mass files to 
the IDS ftp site, for all the DORIS missions, is under investigation.

Concerning the quaternion data of the ENVISAT TM, unfortunately, the ESA 
description of those files is not complete and sufficient to take them into 
account. Sabine is very confident with Envisat attitude model (except 
around maneuvers but it is not surprising).

You have mentioned "offsets in the scale wrt ITRF2000 of +35-40 mm". 
Do they correspond to station coordinates systematic bias to ITRF?

Hope all this will help. Thank you to keep us informed if the questions remain.

Best regards,

Jean-Jacques and Sabine

------------------------------------------------------------------------------
    Jean-Jacques VALETTE ([email-masked])
    COLLECTE LOCALISATION SATELLITES
    8-10 Rue Hermès
    Parc Technologique du Canal
    31526 Ramonville-Saint-Agne Cedex
    FRANCE
    Tel (+33) 05.61.39.47.62
    Fax (+33) 05.61.39.48.06
    <http://www.cls.fr>http://www.cls.fr
-------------------------------------------------------------------------------
  [ Part 2: "Attached Text" ]

PRODUCT="EN1_COM_AXXCNE20040507_100315_20020308_101300_21000101_000000 "
PROC_STAGE=X
REF_DOC="                       "
                                        
ACQUISITION_STATION="FOCC                "
PROC_CENTER="SD    "
PROC_TIME="07-May-2004 10:03:15.000000"
SOFTWARE_VER="ser-don/2.4   "
                                        
SENSING_START="08-Mar-2002 10:13:00.000000"
SENSING_STOP="07-May-2004 03:00:00.000000"
                                        
PHASE=X
CYCLE=+000
REL_ORBIT=+00000
ABS_ORBIT=+00000
STATE_VECTOR_TIME="                           "
DELTA_UT1=+.000000<s>
X_POSITION=+0000000.000<m>
Y_POSITION=+0000000.000<m>
Z_POSITION=+0000000.000<m>
X_VELOCITY=+0000.000000<m/s>
Y_VELOCITY=+0000.000000<m/s>
Z_VELOCITY=+0000.000000<m/s>
VECTOR_SOURCE="  "
                                        
UTC_SBT_TIME="                           "
SAT_BINARY_TIME=+0000000000
CLOCK_STEP=+0000000000<ps>
                                
LEAP_UTC="                           "
LEAP_SIGN=+000
LEAP_ERR=0
                                        
PRODUCT_ERR=0
TOT_SIZE=+00000000000000005004<bytes>
SPH_SIZE=+0000000658<bytes>
NUM_DSD=+0000000002
DSD_SIZE=+0000000280<bytes>
NUM_DATA_SETS=+0000000002
                                        
SPH_DESCRIPTOR="CENTRE DE MASSE ENVISAT1    "
                                                   
DS_NAME="ENTETES                     "
DS_TYPE=G
FILENAME="NOT USED                                                      "
DS_OFFSET=+00000000000000001905<bytes>
DS_SIZE=+00000000000000000876<bytes>
NUM_DSR=+0000000012
DSR_SIZE=+0000000073<bytes>
                                
DS_NAME="CENTRE DE MASSE             "
DS_TYPE=G
FILENAME="NOT USED                                                      "
DS_OFFSET=+00000000000000002781<bytes>
DS_SIZE=+00000000000000002223<bytes>
NUM_DSR=+0000000039
DSR_SIZE=+0000000057<bytes>
                                
C***********************************************************************
C*                                                                      
C*                    *** SATELLITE ENVISAT1 ***                        
C*                                                                      
C* HISTORIQUE D'EVOLUTION DE LA MASSE ET DU CDG                         
C* PAR RAPPORT A LA MASSE INITIALE:  8106.400                           
C* ET AU CDG INITIAL: Xinit= -4.365, Yinit= -0.002, Zinit= -0.039        
C*                                                                      
C***********************************************************************
C                                                                       
CJJCNES SSCNES  Delta MASSE Delta X   Delta Y   Delta Z                 
/-----/---------/---------/---------/---------/---------/               
 19059 36780.000 -0021.747 +0000.509 -0000.006 +0000.042
 19121 27000.000 -0028.376 +0000.508 -0000.006 +0000.042
 19144 50400.000 -0028.544 +0000.508 -0000.006 +0000.042
 19179 43200.000 -0028.654 +0000.508 -0000.006 +0000.042
 19211 21600.000 -0028.780 +0000.508 -0000.006 +0000.042
 19231 36000.000 -0028.912 +0000.508 -0000.006 +0000.042
 19245 10800.000 -0035.896 +0000.507 -0000.006 +0000.042
 19246 10800.000 -0035.978 +0000.507 -0000.006 +0000.042
 19261 03900.000 -0036.120 +0000.507 -0000.006 +0000.042
 19283 28800.000 -0036.309 +0000.507 -0000.006 +0000.042
 19283 28800.000 -0036.309 +0000.507 -0000.006 +0000.042
 19303 76200.000 -0036.489 +0000.507 -0000.006 +0000.042
 19325 34200.000 -0036.628 +0000.507 -0000.006 +0000.042
 19344 25200.000 -0042.495 +0000.506 -0000.007 +0000.042
 19345 21600.000 -0042.626 +0000.506 -0000.007 +0000.042
 19371 34200.000 -0042.764 +0000.506 -0000.007 +0000.042
 19400 31436.000 -0042.867 +0000.506 -0000.007 +0000.042
 19409 30600.000 -0049.524 +0000.504 -0000.007 +0000.042
 19420 18000.000 -0049.625 +0000.504 -0000.007 +0000.042
 19451 21600.000 -0049.739 +0000.504 -0000.007 +0000.042
 19492 32400.000 -0049.823 +0000.504 -0000.007 +0000.042
 19497 34200.000 -0057.126 +0000.503 -0000.007 +0000.042
 19515 43200.000 -0057.209 +0000.503 -0000.007 +0000.042
 19549 14400.000 -0057.303 +0000.503 -0000.007 +0000.042
 19584 25200.000 -0057.378 +0000.503 -0000.007 +0000.042
 19630 28800.000 -0057.459 +0000.503 -0000.007 +0000.042
 19658 28800.000 -0065.263 +0000.501 -0000.007 +0000.042
 19661 11100.000 -0065.399 +0000.501 -0000.007 +0000.042
 19680 07200.000 -0065.499 +0000.501 -0000.007 +0000.042
 19707 28800.000 -0065.595 +0000.501 -0000.007 +0000.042
 19718 00000.000 -0065.633 +0000.501 -0000.007 +0000.042
 19744 28800.000 -0065.737 +0000.501 -0000.007 +0000.042
 19749 03600.000 -0065.780 +0000.501 -0000.007 +0000.042
 19757 25200.000 -0072.661 +0000.500 -0000.007 +0000.042
 19758 46800.000 -0072.687 +0000.500 -0000.007 +0000.042
 19777 46800.000 -0072.760 +0000.500 -0000.007 +0000.042
 19820 77400.000 -0072.808 +0000.500 -0000.007 +0000.042
 19827 25200.000 -0079.690 +0000.499 -0000.007 +0000.042
 19850 10800.000 -0079.772 +0000.499 -0000.007 +0000.042