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GPS SV NOTAM DISTRIBUTION

Learn how GPS Satellite Outages are managed and disseminated domestically and internationally with proper notification protocols and identifiers to enhance satellite operational efficiency.

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GPS SV NOTAM DISTRIBUTION

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  1. GPS SV NOTAM DISTRIBUTION Presentation GNSS 5.1 by Hank Cabler, FAA Co-Chairman, Satellite Operational Implementation Team (SOIT)

  2. Distribution of GPS Satellite NOTAM’s • GPS Satellite Outages are Sent from the GPS Master Control Station at Schriever AFB to the U.S. NOTAM Office (Herndon, VA) • Minimum of 48 Hour Notification for Scheduled GPS SV Outages (1 Week Notice Generally Given) • Unscheduled Outages Distributed Within 30 Minutes • GPS SV Outages Distributed Domestically Under the KGPS Identifier and International GPS SV NOTAM's Distributed Under the KNMH Identifier • U.S. NOTAM Office Sends Confirmation of Receipt of SV Outage Information Back to GPS Master Control Station With NOTAM Number

  3. Distribution of GPS Satellite NOTAM's (Cont.) • Countries Not Receiving GPS SV NOTAM's Need to Submit Request for KNMH NOTAM's to U.S. NOTAM Office and Provide AFTN Address • KNMH Identifier Also Used for Loran and Omega (Before it was Decommissioned) • Cuba Receives KNMH NOTAM's AFTN=MUHAYNYX

  4. Example -- GPS SV NOTAM's (A0067/02 NOTAMN A) KNMH B) 0204040600 C) 0204041800 E) GLOBAL POSITIONING SYSTEM PSEUDO RANDOM NOISE 02 U/S) (A0068/02 NOTAMN A) KNMH B) 0204051545 C) 0204060345 E) GLOBAL POSITIONING SYSTEM PSEUDO RANDOM NOISE 30 U/S)

  5. Example -- GPS Outage NOTAM • PAZA ANCHORAGE • 04/036 - GPS UNRELIABLE WITHIN A 310 NM RADIUS OF THE BIG DELTA VORTAC (BIG, 640026N/1454303W) AT FL400. THIS AREA DECREASES WITH ALTITUDE TO A CIRCLE OF RADIUS 260 NM AT FL250; THEN TO A CIRCLE OF RADIUS 190 NM AT FL100; DOWN TO A CIRCLE OF RADIUS 155 NM AT 4,000 FT AGL 2000-2230 DLY 23 APR 20:00 UNTIL 26 APR 22:30 • IFR OPERATIONS BASED ON GPS NAVIGATION SHOULD NOT BE PLANNED IN THE AFFECTED AREAS DURING THE PERIODS INDICATED. THESE OPERATIONS INCLUDE DOMESTIC RNAV OR LONG-RANGE NAVIGATION REQUIRING GPS. THESE OPERATIONS ALSO INCLUDE GPS STANDALONE AND OVERLAY INSTRUMENT APPROACH OPERATIONS.

  6. NOTAM’s on the Internet HTTPS://WWW.NOTAMS.JCS.MIL

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