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Date: Wed, 20 Feb 2002 10:13:00 +0100
From: Pascale Defraigne
Organization: Royal Observatory of Belgium
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To: ray , senior ,
carine
Subject: Hmaser(BRUS)
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Status: RO
Dear Jim, Ken,
we are starting the moving of our time lab,
so that there will be some perturbations in the
time data of BRUS during the next month.
Since yesterday, the modifications of the air conditioning
induced large variations of the clock signal used
to drive the receiver Z12T.
So, I think it could be better to avoid
to use BRUS in the IGS time scale computations
until everything will be working properly
in the new location. I will inform you at that time.
I apologize for this inconvenience, but it is
for getting better!
Regards,
PAscale
--
__________________________________________
Pascale DEFRAIGNE
Royal Observatory of BELGIUM
Avenue Circulaire, 3
B-1180 BRUSSELS
BELGIUM
Tel.: 32 / 2 / 373 02 60
Fax : 32 / 2 / 374 98 22
e-mail: P.Defraigne@oma.be
__________________________________________
From pascale.defraigne@oma.be Wed Feb 20 09:01:58 EST 2002
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Date: Wed, 20 Feb 2002 15:00:43 +0100
From: Pascale Defraigne
Organization: Royal Observatory of Belgium
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To: "Jim Ray (USNO 202-762-1444)"
Subject: Re: Hmaser(BRUS)
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Status: RO
>
> Thanks for the information, Pascale. But I hope that Ken's ensemble
> algorithm is robust enough to determine the proper weight for BRUS
> dynamically. I will pay close attention to the IGS Rapid results for
> yesterday when they come out later today.
>
> BTW, are you moving the BRUS antenna or only the receiver, etc? The
> reason that I ask is because the present configuration obviously gives
> some of the best clock results in the IGS network. I assume that means,
> in part, that you have a very low multipath environment for your antenna.
>
> Good luck with the move. Best regards,
The antenna will stay, and the antenna cable will remain the same,
only the receiver and time lab equipment will move.
regards,
Pascale
--
__________________________________________
Pascale DEFRAIGNE
Royal Observatory of BELGIUM
Avenue Circulaire, 3
B-1180 BRUSSELS
BELGIUM
Tel.: 32 / 2 / 373 02 60
Fax : 32 / 2 / 374 98 22
e-mail: P.Defraigne@oma.be
__________________________________________