GNSS Interference Report
Issued: 11 months ago
Date Reference Region Category Aggressors Source
2024-09-27 00:01:00 CW GNSS 190 Indian Ocean GNSS Interference NAVCEN
USER: GPS position was erratic at first, moving maybe 1/4 mile increments then GPS jumped to a position 200miles a way and just stayed there. GPS came and went for 11hrs while we transited up the Gulf of Aqaba. Towards the northern half of the Gulf the GPS stayed continuously on a position about 150 to 200 miles away and never came back. Upon reaching the dock in Aqaba the pilot reports local GPS had been out for months. NAVCEN: The GPS Operations Center reviewed the GPS Constellation and Control Segment, there are no known anomalies that might affect GPS signal integrity at the time and vicinity of the reported problem. Space weather was reviewed and found unlikely to have impacted GPS performance. There were no authorized GPS tests in the area. No correlating reports from inter-agency partners. No additional information.
Other alerts for

Indian Ocean


UKMTO Notice – Military Live Firing Exercise, Arabian Sea

It has been reported by the UKMTO that the Pakistani Navy have notified that Naval ships will conduct live firing practice between 0400 and 1700 …

Unmanned Surface Vehicle along with three small craft sighted, Red Sea

The UKMTO have received a report of a light blue Unmanned Surface Vehicle 24nm West of Al Mukha, Yemen. The master of a Kuwait-flagged tanker …

An Unmanned Surface Vessel and Two Small Crafts Sighted, Gulf of Aden

The UKMTO have reported that there has been an incident 61nm Southeast of Mocha, Yemen. UPDATE: The Master of a Palau-flagged oil tanker has reported …

Suspicious Approach on a Tanker, Gulf of Aden

The UKMTO have reported that there has been a suspicious approach on a tanker approximately 55nm Southeast of Aden, Yemen. A small black and yellow …

GNSS Interference Report

USER: Vessel Currently at Anchor off Sea Island Terminal at Ras Tanura. Vessel has been losing GPS Data intermittently. NAVCEN: The GPS Operations Center reviewed …