the 2nd space operations squadron capt heather eastlack nanus unclassified
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THE 2nd SPACE THE 2nd SPACE OPERATIONS SQUADRONOPERATIONS SQUADRON
Capt Heather EastlackCapt Heather Eastlack
NANUS
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Introduction
• 2 SOPS NANU overview• History • Description• Format Samples
• FCSTMX changes
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NANU Description
2 SOPS generates a Notice Advisory to NAVSTAR Users (NANU) message to inform
military and civil users of events affecting GPS constellation navigation payload status
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NANU History
• Civil community through on site support personnel convince GPS operational support personnel that outage notices need to be published in 1984
• GPS operational support personnel collaborate and code NANU outage distribution software in 1986
• United States Coast Guard (USCG) receives NANUs and upgrades USCG radio broadcasts to include NANUs in 1988
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NANU History
• Requirement established to report GPS degradation below a certain level in 1989.
• Worldwide navigation users (civilian and military) increased to infinite numbers as utility is established 1988-Present
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NANU History
• MOA established between Department of Transportation (DOT) and Department of Defense (DOD) in Jan 1993
– Annex 1 DOT Representation at the GPS JPO and AFSPACECOM added in Jun 1993– Annex 2 Second Coded Civil GPS Signal added in Jul 1997 – Annex 3 Information Coordination and Dissemination added in Jul 1999 – Annex 4 Implementing Unique Civil Requirements added in Aug 2000
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NANU History
• The legacy GPS User Support System (GUSS) was PC-based and developed as an offline tool to automate NANU generation in 1995
– Notified worldwide users of satellite outages, return to service, and general GPS information
• MOA established between United States Air Force Space Command (AFSPACECOM) and USCG in Feb 1996
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NANU History
• Intranet-based GUSS was developed to provide enhanced automation and be compliant with LAN policies regarding software/hardware requirements
– VV&A in 2001– Related MCB occurred in Jan 2002
• Awaiting 1067 validation for AEP version of GUSS
– Related MCB occurred in Jan 2002
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NANU Types
• Scheduled outages• Unscheduled outages• General• Classified• Others
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NANU Types
• Scheduled outages• FCSTDV• FCSTMX• FCSTCANC• FCSTRESCD• FCSTEXTD• FCSTSUMM
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NANU Samples
NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNNSUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM1. NANU TYPE: FCSTDV NANU NUMBER: YYYYNNN NANU DTG: DDHHMMZ MMM YYYY REFERENCE NANU: N/A REF NANU DTG: N/A SVN: XX PRN: XX START JDAY: JJJ START TIME ZULU: HHMM START CALENDAR DATE: DD MMM YYYY STOP JDAY: JJJ STOP TIME ZULU: HHMM STOP CALENDAR DATE: DD MMM YYYY
2. CONDITION: GPS SATELLITE SVNXX (PRNXX) WILL BE UNUSABLE ON JDAY JJJ (DD MMM YYYY) BEGINNING HHMM ZULU UNTIL JDAY JJJ (DD MMM YYYY) ENDING HHMM ZULU.
3. POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV MILITARY - GPS Support Center, DSN 560-2541, COMM 719-567-2541, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS
Forecast Delta V
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NANU Samples
NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNNSUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM1. NANU TYPE: FCSTDV NANU NUMBER: YYYYNNN NANU DTG: DDHHMMZ MMM YYYY REFERENCE NANU: N/A REF NANU DTG: N/A SVN: XX PRN: XX START JDAY: JJJ START TIME ZULU: HHMM START CALENDAR DATE: DD MMM YYYY STOP JDAY: JJJ STOP TIME ZULU: HHMM STOP CALENDAR DATE: DD MMM YYYY
2. CONDITION: GPS SATELLITE SVNXX (PRNXX) WILL BE UNUSABLE ON JDAY JJJ (DD MMM YYYY) BEGINNING HHMM ZULU UNTIL JDAY JJJ (DD MMM YYYY) ENDING HHMM ZULU.
3. POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV MILITARY - GPS Support Center, DSN 560-2541, COMM 719-567-2541, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS
Forecast Delta V
NANU Description
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NANU Samples
NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNNSUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM1. NANU TYPE: FCSTDV NANU NUMBER: YYYYNNN NANU DTG: DDHHMMZ MMM YYYY REFERENCE NANU: N/A REF NANU DTG: N/A SVN: XX PRN: XX START JDAY: JJJ START TIME ZULU: HHMM START CALENDAR DATE: DD MMM YYYY STOP JDAY: JJJ STOP TIME ZULU: HHMM STOP CALENDAR DATE: DD MMM YYYY
2. CONDITION: GPS SATELLITE SVNXX (PRNXX) WILL BE UNUSABLE ON JDAY JJJ (DD MMM YYYY) BEGINNING HHMM ZULU UNTIL JDAY JJJ (DD MMM YYYY) ENDING HHMM ZULU.
3. POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV MILITARY - GPS Support Center, DSN 560-2541, COMM 719-567-2541, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS
Forecast Delta V
Reference Information
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NANU Samples
NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNNSUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM1. NANU TYPE: FCSTDV NANU NUMBER: YYYYNNN NANU DTG: DDHHMMZ MMM YYYY REFERENCE NANU: N/A REF NANU DTG: N/A SVN: XX PRN: XX START JDAY: JJJ START TIME ZULU: HHMM START CALENDAR DATE: DD MMM YYYY STOP JDAY: JJJ STOP TIME ZULU: HHMM STOP CALENDAR DATE: DD MMM YYYY
2. CONDITION: GPS SATELLITE SVNXX (PRNXX) WILL BE UNUSABLE ON JDAY JJJ (DD MMM YYYY) BEGINNING HHMM ZULU UNTIL JDAY JJJ (DD MMM YYYY) ENDING HHMM ZULU.
3. POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV MILITARY - GPS Support Center, DSN 560-2541, COMM 719-567-2541, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS
Forecast Delta V
Satellite Identification
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NANU Samples
NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNNSUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM1. NANU TYPE: FCSTDV NANU NUMBER: YYYYNNN NANU DTG: DDHHMMZ MMM YYYY REFERENCE NANU: N/A REF NANU DTG: N/A SVN: XX PRN: XX START JDAY: JJJ START TIME ZULU: HHMM START CALENDAR DATE: DD MMM YYYY STOP JDAY: JJJ STOP TIME ZULU: HHMM STOP CALENDAR DATE: DD MMM YYYY
2. CONDITION: GPS SATELLITE SVNXX (PRNXX) WILL BE UNUSABLE ON JDAY JJJ (DD MMM YYYY) BEGINNING HHMM ZULU UNTIL JDAY JJJ (DD MMM YYYY) ENDING HHMM ZULU.
3. POC: CIVILIAN - NAVCEN AT (703)313-5900, HTTP://WWW.NAVCEN.USCG.GOV MILITARY - GPS Support Center, DSN 560-2541, COMM 719-567-2541, GPS@SCHRIEVER.AF.MIL, HTTP://WWW.SCHRIEVER.AF.MIL/GPS
Forecast Delta V
Outage Times
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NANU Types
• Unscheduled outages• UNUSUFN• UNUSABLE• UNUNOREF
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NANU Samples
2004021------------------------1. NANU TYPE: GENERAL*** GENERAL MESSAGE TO ALL GPS USERS ***
GPS Satellite SVN23 (PRN23) was decommissioned from active service on JDAY044 (13 Feb 04) as of 2200z. PRN23 is available for future satellite vehicles.
*** GENERAL MESSAGE TO ALL GPS USERS ***
General
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NANU Samples
Classified
Agencies with the proper clearance will receive this NANU. CLASNANUs will never have a
NANU number. An example of the content of a CLASNANU is a Selective Availability or Anti-
Spoof change.
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NANU Types
• Others• USABINIT• LEAPSEC
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NANU Recent Issues
• SVN23 & SVN36 FCSTMX outages
• Required UFN end times• Capability does not exist• User community not informed if change was made at that time
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NANU Upgraded Capabilities
• FCSTMX NANU end time UFN enabled
• User community informed NLT 1 month prior to implementation
• GENTEXT NANU
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Summary
• 2 SOPS NANU • History • Description• Format Samples
• FCSTMX changes
The 2nd Space Operations SquadronThe 2nd Space Operations Squadron
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