Message-ID: <3CFB97B0.C789F89D@noaa.gov> Date: Mon, 03 Jun 2002 12:22:08 -0400 From: "Steve Hilla" To: igsmail@igscb.jpl.nasa.gov Subject: [IGSMAIL-3913]: June 5th test on PRN 23 Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 03 Jun 09:33:49 PDT 2002 Message Number 3913 ****************************************************************************** Author: Steve Hilla On behalf of the GPS Interagency Advisory Council (GIAC), I have been asked to remind the IGS community of the upcoming test on PRN23 (5 June to 7 June). During the 48-hour period, PRN23's Health bits will be set using a slightly different protocol. Please report any receiver problems or outages to the U.S. Coast Guard Navigation Center: (703) 313-5900, http://www.navcen.uscg.gov . Best regards, Steve Hilla National Geodetic Survey, NOAA ---------------------------------------------------------- ************************************************************* *********NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2002075 SUBJ: SVN23 (PRN23) FORECAST OUTAGE RESCHEDULED 1. NANU NUMBER: 2002075 NANU DTG: 312209Z MAY 2002 NANU Type: FCSTRESCD REFERENCE NANU: 2002072 REF NANU DTG: 241650Z MAY 2002 SVN: 23 PRN: 23 START JDAY: 156 START TIME ZULU: 1600 START CALENDER DATE:Wednesday, June 05, 2002 STOP JDAY: 158 STOP TIME ZULU: 1600 STOP CALENDER DATE: 07 JUN 2002 2. CONDITION: GPS SATELLITE SVN23 (PRN23) WILL BE UNUSABLE ON JDAY 156 (05 JUN 2002) BEGINNING 1600 ZULU UNTIL JDAY 158 (07 JUN 2002) ENDING 1600 ZULU. PLEASE REFERENCE NANU NUMBER 2002072 DTG 241650Z MAY 2002 FOR THE ORIGINAL OUTAGE TIME. 3. POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV MILITARY - GPS Support Center, DSN 560-2541, COMM 719-567-6616, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS 2002078------------------------ *** GENERAL MESSAGE TO ALL GPS USERS *** REGARDING NANU 2002075, PRN 23'S HEALTH BIT WILL BE SET TO '11111.' FOR THIS 48 HOUR PERIOD, THE US COAST GUARD (USCG) NAVIGATION CENTER (NAVCEN) IS THE FEEDBACK PATHWAY FOR ALL CIVIL GPS USERS, WITH THE EXCEPTION OF AVIATION USERS. THE FEDERAL AVIATION ADMINISTRATION (FAA) NATIONAL OPERATIONS CONTROL CENTER (NOCC) IS THE FEEDBACK PATHWAY FOR CIVIL AVIATION GPS USERS. FOR THIS PERIOD, THE GPS SUPPORT CENTER (GSC) WILL OPERATE 24/7 AND SERVE AS THE SPACEAF FEEDBACK POC FOR THE NAVCEN AND NOCC. THE MILITARY USERS WILL PROVIDE FEEDBACK THROUGH THE USSPACECOM SPOC AND/OR THE SPACEAF AOC. THE NAVCEN AND NOCC HAVE STANDARD FORMATS (TO INCLUDE SPECIFICS OF LOCATION, RECEIVER BEHAVIOR, USER ACTIONS, AND DIAGNOSTIC DATA THAT MAY BE AVAILABLE, ETC.) FOR REPORTING GPS PROBLEMS, ANOMALIES, AND OUTAGES. THESE FORMATS WILL PROVIDE SUFFICIENT INFORMATION FOR REPORTING CIVIL IMPACTS. ROUTE ANY OTHER FEEDBACK THROUGH SPACEAF AOC AT COMMERCIAL (805) 606-9994 OR DSN 276-9994. *** GENERAL MESSAGE TO ALL GPS USERS *** *******************************************************************