Subject: [IGSMAIL-0572] Further to My Reply to Tom Clark's Message
From: Richard B. Langley
Date: Mon, 18 Apr 1994 10:48:40 PDT

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IGS Electronic Mail      Mon Apr 18 10:48:40 PDT 1994      Message Number 0572
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Author: Richard B. Langley
Subject: Further to My Reply to Tom Clark's Message

DoD issued the following NANU on 12 April concerning the disposition of
PRN03:

R 122055Z APR 94
FM 2SOPS FALCON AFB CO//DOAI//
UNCLAS
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 129-94104
SUBJ: FORECAST OUTAGE PRN3 DAY 103/1500 UTC.
1. CONDITION: PRN3 (SVN11) IS EXPECTED TO BE SET PERMANENTLY UNUSABLE
ON DAY 103 (13 APR 94) BEGINNING 1500 DUE TO NAVIGATION PAYLOAD SHUT
DOWN IN PREPARATION FOR FINAL DISPOSAL.
2. PRN 3 (SVN 11) HAS BEEN SET UNUSABLE SINCE DAY 058 (27 FEB 94),
SEE NANU 083-94059 (DTG 281700Z FEB 94). SVN 11 WILL THRUST OUT OF
ORBIT ON DAY 104 BEGINNING AT 2100 AND WILL NOT RETURN.
3. USERS ARE REMINDED TO UPDATE THEIR ALMANACS.
4. AFFECTED AREAS: GLOBAL
5. POC: CAPT THOMPSON AT (719) 550-6378 OR DSN 560-6378.
RECEIVED AT USNO 13 APR 94

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 Richard B. Langley                         Internet: [email-masked] or [email-masked]
 Geodetic Research Laboratory               BITnet:   LANG@UNB or SE@UNB
 Dept. of Geodesy and Geomatics Engineering Phone:    (506) 453-5142
 University of New Brunswick                FAX:      (506) 453-4943
 Fredericton, N.B., Canada  E3B 5A3         Telex:    014-46202
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