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UNCLASSIFIED. THE 2nd SPACE OPERATIONS SQUADRON Capt Heather Eastlack. NANUS. UNCLASSIFIED. UNCLASSIFIED. Introduction. 2 SOPS NANU overview History Description Format Samples FCSTMX changes. UNCLASSIFIED. UNCLASSIFIED. NANU Description.

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THE 2nd SPACE OPERATIONS SQUADRON Capt Heather Eastlack

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UNCLASSIFIED

THE 2nd SPACE OPERATIONS SQUADRONCapt Heather Eastlack

NANUS

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UNCLASSIFIED

Introduction

  • 2 SOPS NANU overview

    • History

    • Description

    • Format Samples

  • FCSTMX changes

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UNCLASSIFIED

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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UNCLASSIFIED

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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UNCLASSIFIED

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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UNCLASSIFIED

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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UNCLASSIFIED

NANU Types

  • Scheduled outages

    • FCSTDV

    • FCSTMX

    • FCSTCANC

    • FCSTRESCD

    • FCSTEXTD

    • FCSTSUMM

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NANU Samples

Forecast Delta V

NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNN

SUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM

1. 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, [email protected], HTTP://WWW.SCHRIEVER.AF.MIL/GPS

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NANU Samples

Forecast Delta V

NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNN

SUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM

1. 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, [email protected], HTTP://WWW.SCHRIEVER.AF.MIL/GPS

NANU Description

UNCLASSIFIED


UNCLASSIFIED

NANU Samples

Forecast Delta V

NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNN

SUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM

1. 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, [email protected], HTTP://WWW.SCHRIEVER.AF.MIL/GPS

Reference Information

UNCLASSIFIED


UNCLASSIFIED

NANU Samples

Forecast Delta V

NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNN

SUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM

1. 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, [email protected], HTTP://WWW.SCHRIEVER.AF.MIL/GPS

Satellite Identification

UNCLASSIFIED


UNCLASSIFIED

NANU Samples

Forecast Delta V

NOTICE ADVISORY TO NAVSTAR USERS (NANU) YYYYNNN

SUBJ: SVNxx (PRNXX) FORECAST OUTAGE JDAY JJJ/HHMM - JDAY JJJ/HHMM

1. 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, [email protected], HTTP://WWW.SCHRIEVER.AF.MIL/GPS

Outage Times

UNCLASSIFIED


UNCLASSIFIED

NANU Types

  • Unscheduled outages

    • UNUSUFN

    • UNUSABLE

    • UNUNOREF

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UNCLASSIFIED

NANU Samples

General

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 ***

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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

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The 2nd Space Operations Squadron

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