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Rapid-Service-Mail No.32

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Date:2012-08-03 11:34:50
Sender:&#8221;Varghese, Thomas - IS.CONTRACTOR&#8221; <Tom.Varghese.Contractor@exelisinc.com>
Subject:[RapidServiceMail] No.32: Re: (HITU) Monument Peak (7110) Strange "decimal" range bias
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ILRS/AWG Rapid Service Mail 2012-08-06 11:17:18 UTC Message No. 32
********************************************************************************Thanks Toshi. We will look into it.

-----Original Message-----
From: Toshimichi Otsubo [mailto:t.otsubo@r.hit-u.ac.jp]
Sent: Friday, August 03, 2012 7:14 AM
To: Varghese, Thomas - IS.CONTRACTOR; Sebeny, Ronald - IS; RapidServiceMail
Subject: (HITU) Monument Peak (7110) Strange ”decimal” range bias

Dear Monument Peak Station,

Our daily analysis detected a very strange behaviour in Monument
Peak´s data obtained on 1 Aug. The bias values are mostly
overflowed in the analysis report:
http://geo.science.hit-u.ac.jp/slr/bias/ (click Latest Analysis Report)

Strangely, the post-fit residulals are close to 150 km, 15 km or 1.5 m,
in one way distance. These correspond to 1 ms, 100 microsec, and
10 ns in two way range. Perhaps one decimal digit is wrongly recorded
in or read from a timer. I do not know it is from hardware or software,
but I hope it will help you find the problem.

Best Regards,
Toshi
-----
Toshimichi Otsubo
Hitotsubashi University
Web http://geo.science.hit-u.ac.jp/ Tel & Fax +81-42-580-8968

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