Reply-To: DORISMail Sender: DORISMail-owner@ensg.ign.fr Precedence: list ****************************************************************************** DORISMail 21-Mar-2001 10:46:06 Message No 0121 ****************************************************************************** Author: "H. Fagard" Subject: Monumentation improvement at Santiago --============_-1226954461==_ma============ Content-Type: text/plain; charset="us-ascii" ; format="flowed" Dear Colleagues, The stability of the DORIS antenna at Santiago has been improved, by replacing the current guyed 2 m tower whith a very rigid, 45 cm sided, triangular metal tower. The monument is unchanged: it is the NASA/GSFC mark # 7400 on the laser pad. The Starec antenna has not been changed, but since the antenna height is slightly different, a new acronym has been assigned to the reference point : SANB. Transmissions from the former antenna position stopped on February 20, and resumed from the new one on Feb 28. The DOMES number for the new antenna reference point is 41705S009. Its approximate coordinates (preliminary ITRF2000, 1997.0) are: X = 1769700.33 m Y = -5044614.92 m Z = -3468261.24 m (sigma: 1 cm) The ITRF2000 velocities for this site are: VX = 0.0221 m/y VY = -0.0059 m/y VZ = 0.0111 m/y Best regards, Herve Fagard -- ====================================================================== Herve FAGARD e-mail : herve.fagard@ign.fr Institut Geographique National 94165 SAINT-MANDE CEDEX PHONE : + 33 1 43 98 81 48 FRANCE FAX : + 33 1 43 98 84 50 ====================================================================== --============_-1226954461==_ma============ Content-Type: text/html; charset="us-ascii" Monumentation improvement at Santiago

Dear Colleagues,
The stability of the DORIS antenna at Santiago has been improved, by replacing the current guyed 2 m tower whith a very rigid, 45 cm sided, triangular metal tower. The monument is unchanged: it is the NASA/GSFC mark # 7400 on the laser pad.

The Starec antenna has not been changed, but since the antenna height is slightly different, a new acronym has been assigned to the reference point : SANB.

Transmissions from the former antenna position stopped on February 20, and resumed from the new one on Feb 28.

The DOMES number for the new antenna reference point is 41705S009.

Its approximate coordinates (preliminary ITRF2000, 1997.0) are:

X =  1769700.33 m       Y = -5044614.92 m       Z = -3468261.24 m
(sigma: 1 cm)

The ITRF2000 velocities for this site are:

VX = 0.0221 m/y         VY = -0.0059 m/y                VZ = 0.0111 m/y


Best regards,

Herve Fagard
--
======================================================================
Herve FAGARD                              e-mail : herve.fagard@ign.fr
Institut Geographique National
94165 SAINT-MANDE CEDEX                     PHONE : + 33 1 43 98 81 48
FRANCE                                        FAX : + 33 1 43 98 84 50
======================================================================
--============_-1226954461==_ma============--