Evidence Explorer

This document is a memorandum from the U.S. Department of Transportation's Federal Aviation Administration regarding the sighting of unidentified air traffic by the crew of Japan Airlines flight 1628 on November 17, 1986. It is intended for distribution among regional facility managers and staff officers.

The document discusses the radar data related to Japan Airlines flight 1628, which experienced uncorrelated radar signals during its flight on November 17, 1986. FAA experts analyzed the radar data and explained the phenomenon of uncorrelated targets, emphasizing that this occurrence coincided with a pilot's sighting of an unidentified object.

The document discusses the phenomenon of uncorrelated radar returns from aircraft, specifically detailing the differences between primary radar signals and secondary transponder signals.

This document is a memorandum from the Federal Aviation Administration discussing radar targets associated with JAL flight 1628 and the phenomenon of 'split images' observed during the flight.

The FAA acknowledges its lack of resources and mandate to scientifically investigate UFO sightings, specifically referencing Japan Airlines flight 1628.

This document details two incidents of unidentified air traffic sightings reported by flight crews in Alaska in January 1987. The first incident involved an Alaska Airlines Boeing 737 that detected a fast-moving target on its radar, while the second incident involved a Japan Airlines Boeing 747 pilot who reported unusual lights in front of his aircraft.

This document is a response from the FAA regarding a request for information about the unidentified traffic sighting by Japan Airlines flight 1628 on November 17, 1986. It includes an order form for obtaining materials related to the investigation.

The document discusses the phenomenon of uncorrelated radar signals, specifically the differences between primary radar returns and secondary beacon returns when tracking aircraft.

This document is a memorandum from the Federal Aviation Administration (FAA) regarding the radar images of Japan Air Lines flight 1628, which experienced intermittent radar images attributed to 'split images'. The FAA seeks clarification on this phenomenon for public communication.

This document contains an analysis of unidentified aerial phenomena (UAP) observed in the United States, particularly focusing on an incident that occurred on February 18, 1948, over Norcatur, Kansas. The analysis includes eyewitness accounts, descriptions of the object, and speculation regarding its nature, including theories about it being a meteor or a ro…

The document discusses the phenomenon of uncorrelated radar signals, explaining the differences between primary and secondary radar returns and how they can indicate the presence of an aircraft.

The document is a technical debriefing transcript of the Gemini V mission, focusing on the flight crew's operational experiences and observations during the mission. It includes discussions on systems operations, visual sightings, experiments, and various technical aspects of the spacecraft's performance.

This document discusses the analysis of radar data related to Japan Airlines flight 1628, which encountered uncorrelated radar signals during its flight on November 17, 1986. FAA experts explain the phenomenon of uncorrelated primary and beacon targets and its implications for radar tracking.

This document contains a series of communications and statements from Gerald R. Ford, including a call for a congressional investigation into UFO sightings in Michigan, reflecting public interest and concern over unidentified flying objects.

The document discusses the phenomenon of uncorrelated radar signals, specifically detailing the differences between primary radar returns and secondary beacon returns. It includes a diagram illustrating how these signals can appear on a radar screen when they do not match up in time or location.

This memorandum from the Federal Aviation Administration discusses the radar split image phenomenon observed during JAL flight 1628 on November 17, 1986. It acknowledges the interpretation provided by the Alaskan Region Air Traffic Division and includes an analysis of uncorrelated primary and beacon targets.

This document is a press briefing by Mike McCurry discussing various topics including Iraq, Social Security, and the political climate in the United States during the late 1990s. The briefing highlights the President's efforts to build international support regarding Iraq, the importance of Social Security reform, and the administration's commitment to addre…

This document discusses the FAA's analysis of radar data related to Japan Airlines flight 1628, which reported an uncorrelated radar target during its flight on November 17, 1986. The FAA experts explained the phenomenon of uncorrelated primary and beacon targets and its implications for radar tracking.

The Physical Constraints Paper discusses the physical limitations and characteristics of Unidentified Aerial Phenomena (UAP) based on known physics. It explores how UAP interactions with the atmosphere could produce observable signatures, such as optical fireballs and ionization trails, and examines the implications for detecting and interpreting UAP data.

The document discusses the phenomenon of uncorrelated radar signals, explaining how primary and secondary radar returns can occur at different times, leading to discrepancies in radar tracking of aircraft.