Subject: [IGSMAIL-0819] ITRF93 coordinates for the 13 Fixed/Constrained stations
From: Zuheir Altamimi, Claude Boucher
Date: Mon, 26 Dec 1994 7:53:59 PST

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IGS Electronic Mail      Mon Dec 26  7:53:59 PST 1994      Message Number 0819
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Author: Zuheir Altamimi, Claude Boucher
Subject: ITRF93 coordinates for the 13 Fixed/Constrained stations

Subject: ITRF93 coordinates for the 13 Fixed/Constrained stations

Dear Colleagues,

As agreed by the IGS Analysis Centers, please find below the ITRF93 
coordinates at epoch 1995.0 we computed for the 13 stations to be 
fixed/constrained.

Brian Murphy from AUSLIG has reported in a message we received on 7 December 
1994, that they performed a new local adjustment for Tidbinbilla site on 29 
November 1994. This new adjustment called TIDLOCAL produced the following 
new tie values:

Point               DOMES number
---------           ------------
AU017               50103M108        (Rogue antenna marker)
DSS43               50103S001
DSS45               50103S010

TIDLOCAL adjustment      X             Y             Z         Chord
DSS45 - DSS43          40.710      -404.168      -367.147     547.545
DSS45 - AU017         -60.720      -208.617       -62.493     226.083

The local tie used in the ITRF93 adjustment is:

50103S010  50103M108   -60.781     -208.581       -62.538

Using the new local tie values, a readjustment of Tidbinbilla ITRF93 
coordinates at epoch 1993.0 was perfomed. These new Tidbinbilla 
station coordinates will be appended to the ITRF93.SSC file which can be 
obtained by ftp from:

schubert.ign.fr (192.33.147.230)
username: anonymous
password: your e-mail address
Directory : pub/itrf

The following coordinates at epoch 1995.0 for the 13 stations take into 
account the new local tie at Tidbinbilla site. 

On the other hand, in order to be consistent with the series of Earth 
orientation parameters produced by the IERS Central Bureau, the ITRF93 
velocity field (and not ITRF93N) has been used to map the coordinates from 
1993.0 to 1995.0 epoch.

Best regards, Merry Christmas and Happy New Year 1995.

Zuheir Altamimi and Claude Boucher

ITRF-P3 : SSC(IERS) 94 C 02  (coordinates at epoch 1995.0)
      
DOMES     SITE        FILE       X            Y            Z       SX    SY    SZ    VX     VY     VZ    SVX    SVY    SVZ
NUMBER    NAME        NAME       m            m            m       m     m     m     ---------------- m/y ------------------
--------- ----------- ---- ------------ ------------ ------------ ----- ----- ----- ------ ------ ------ ------ ------ ------
10302M003 TROMSO      TROM  2102940.360   721569.398  5958192.092 0.004 0.004 0.004 -.0252 0.0162 0.0065 0.0043 0.0033 0.0090
13407S012 MADRID      MADR  4849202.459  -360329.148  4114913.089 0.003 0.003 0.002 -.0141 0.0222 0.0201 0.0006 0.0004 0.0006
13504M003 KOOTWIJK    KOSG  3899225.260   396731.803  5015078.324 0.005 0.005 0.003 -.0218 0.0212 0.0122 0.0017 0.0016 0.0016
14201M009 WETTZELL    WETT  4075578.593   931852.662  4801570.020 0.003 0.003 0.002 -.0252 0.0191 0.0123 0.0004 0.0003 0.0004
30302M002 HARTEBEESTH HART  5084625.431  2670366.543 -2768493.990 0.004 0.004 0.004 -.0054 0.0176 0.0216 0.0012 0.0008 0.0007
40104M002 ALGONQUIN   ALGO   918129.510 -4346071.228  4561977.846 0.003 0.003 0.003 -.0217 -.0021 0.0066 0.0004 0.0005 0.0005
40127M003 YELLOWKNIFE YELL -1224452.487 -2689216.070  5633638.283 0.003 0.003 0.004 -.0289 0.0006 -.0025 0.0036 0.0050 0.0087
40405S031 GOLDSTONE   GOLD -2353614.169 -4641385.389  3676976.474 0.004 0.005 0.005 -.0191 0.0061 -.0047 0.0003 0.0003 0.0003
40408M001 FAIRBANKS   FAIR -2281621.422 -1453595.760  5756961.945 0.003 0.003 0.003 -.0285 -.0019 -.0101 0.0003 0.0004 0.0004
40424M004 KOKEE_PARK  KOKB -5543838.126 -2054587.365  2387809.642 0.003 0.003 0.003 -.0129 0.0614 0.0292 0.0005 0.0004 0.0005
41705M003 SANTIAGO    SANT  1769693.278 -5044574.137 -3468321.048 0.004 0.004 0.004 0.0228 -.0063 0.0256 0.0021 0.0017 0.0023
50103M108 TIDBINBILLA TIDB -4460996.070  2682557.105 -3674443.836 0.004 0.004 0.004 -.0354 -.0017 0.0412 0.0008 0.0006 0.0007
50107M004 YARRAGADEE  YAR1 -2389025.427  5043316.850 -3078530.871 0.005 0.005 0.004 -.0459 0.0090 0.0403 0.0009 0.0013 0.0010

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