Radar computer printout, continuous data recording

FAA via National Archives / The Black Vault · 179 pages · text by GLM-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 65 Original source ↗

Read from the scan by GLM-OCR; expect the odd misread word.

JAPAN JALI TARGET REPORTS

STIME RANGE AGP DEG Q 11/19/86 BEAGON ALT PAGE 2

QUA SYS

SUBSYS = 1 TOTAL = 6

2:45:42.735 141.25 1977 173 7 RT 1

2:45:43.111 144.12 2052 191 7 RT 1

 147.75 2055 181 7 RT 1

 144.00 2090 193 7 RT 1

 159.75 2157 192 7 RT 1

SUBSYS = 1 TOTAL = 5

2:46:54.702 144.25 1977 173 7 RT 1

2:46:55.015 144.12 2051 181 7 RT 1

 147.62 2052 191 7 RT 1

 159.75 2169 190 7 RT 1

SUBSYS = 1 TOTAL = 4

2:47:06.293 98.50 1812 159 7 RT 1

2:47:05.574 144.25 1979 173 7 RT 1

 144.12 2014 177 7 RT 1

 144.00 2062 181 7 RT 1

2:47:07.172 147.75 2061 191 7 RT 1

 144.20 2093 193 7 RT 1

 159.75 2157 190 7 RT 1

SUBSYS = 1 TOTAL = 7

2:47:19.357 111.00 1851 163 7 RT 1

2:47:19.763 144.12 1979 173 7 RT 1

2:47:19.137 144.00 2051 181 7 RT 1

 147.75 2061 181 7 RT 1

 144.12 2092 183 7 RT 1

 159.75 2157 192 7 RT 1

SUBSYS = 1 TOTAL = 6

2:47:30.405 109.62 1857 163 7 RT 1

2:47:30.905 144.25 1990 174 7 RT 1

2:47:31.155 144.12 2051 191 7 RT 1

 147.62 2053 181 7 RT 1

 159.75 2157 192 7 RT 1

SUBSYS = 1 TOTAL = 5

2:47:12.875 144.25 1977 173 7 RT 1

 144.37 2016 177 7 RT 1

 144.00 2059 192 7 RT 1

2:47:13.250 147.97 2051 181 7 RT 1

 144.12 2095 194 7 RT 1

 159.75 2157 190 7 RT 1

SUBSYS = 1 TOTAL = 5

2:47:54.392 144.25 1979 173 7 RT 1

 141.12 2013 177 7 RT 1

 141.12 2051 191 7 RT 1

 147.87 2052 181 7 RT 1

 144.12 2093 183 7 RT 1

2:47:55.391 159.75 2158 192 7 RT 1

SUBSYS = 1 TOTAL = 5

2:43:05.731 144.23 1977 173 7 RT 1

2:43:07.106 144.00 2019 177 7 RT 1

 141.22 2052 181 7 RT 1

 117.62 2053 181 7 RT 1

 141.20 2102 184 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 above. The text was read from the page images by GLM-OCR; expect the odd misread word. 179 pages are in the text index: search them above, or from the library's search.