Radar computer printout, continuous data recording

FAA via National Archives / The Black Vault · 179 pages · text by OCR

This FAA Alaskan Region Public Affairs Office release, dated March 5, 1987, is a computer printout of recorded FAA radar data for Japan Air Lines Flight 1628 on November 17, 1986. It covers 38 minutes of computer time and lists 105 radar returns. Of these, 86 are usable and 19 are uncorrelated primary returns. The printout records when the pilot first asked about other traffic and when he said he could not see the UFO. It also explains that uncorrelated returns occur when the primary and beacon signals do not match in position.

Open the PDF at page 75 Original source ↗

RADAR ONLY TARGET REPORTS

STIME RANGE ACP DEG Q 11/18/86 BEAGON ALT

QUA 12 SYS

3:23:56.782 147.87 2059 190 7 RT 1

159.75 2167 190 7 RT 1

3:24:05.429 147.87 2050 181 7 RT 1

144.00 2054 180 7 RT 1

3:04:08.604 159.75 2157 190 7 RT 1

3:01:20.445 143.87 1975 173 7 RT 1

144.25 2026 178 7 RT 1

147.87 2059 180 7 RT 1

114.25 2039 183 7 RT 1

3:24:20.945 159.75 2157 190 7 RT 1

3:01:32.471 147.87 2060 181 7 RT 1

3:21:32.951 159.75 2155 190 7 RT 1

3:04:44.503 147.87 2053 181 7 RT 1

3:04:44.978 144.25 2295 184 7 RT 1

159.75 2155 190 7 RT 1

3:04:56.528 143.75 1975 173 7 RT 1

147.75 2062 191 7 RT 1

152.25 2154 199 7 RT 1

159.75 2157 190 7 RT 1

3:05:09.543 147.50 2060 191 7 RT 1

3:05:09.919 159.75 2155 190 7 RT 1

3:05:20.439 143.87 1973 173 7 RT 1

3:05:20.752 147.75 2063 191 7 RT 1

159.75 2159 190 7 RT 1

3:05:32.770 147.75 2064 181 7 RT 1

3:05:33.145 150.12 2159 199 7 RT 1

159.75 2159 190 7 RT 1

3:05:44.482 143.87 1977 173 7 RT 1

3:05:44.959 147.87 2051 181 7 RT 1

152.12 2159 199 7 RT 1

3:05:45.234 159.75 2157 190 7 RT 1

3:05:56.990 144.00 2059 190 7 RT 1

147.75 2051 181 7 RT 1

159.75 2156 190 7 RT 1

3:06:08.599 143.97 1977 173 7 RT 1

144.25 2045 179 7 RT 1

147.75 2052 191 7 RT 1

159.75 2157 190 7 RT 1

3:05:20.595 143.75 1975 173 7 RT 1

144.50 2029 178 7 RT 1

147.87 2060 181 7 RT 1

Cited by

Japan Air Lines Flight 1628: The Alaska Mothership 1986

About this file

Document, cited by the archive. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 179 pages are in the text index: search them above, or from the library's search.