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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 69 Original source ↗

“Japan Air Lines Flight 1628”3 pages

  • p. 3 …COMPUTER CDR PRINTOUT Reference to Japan Air Lines Flight #1628 November 17, 1986, 5:19 pm…
  • p. 20 …the intermittent radar images of Japan Air Lines flight 1628, on November 17, 1986, which occured…
  • p. 163 COMPUTER CDR PRINTOUT Reference to Japan Air Lines Flight #1628 November 17, 1986, 5:19 pm…
HADAN ONLY TARGET REPORTS

STINE RANGE AGE DES Q BEAGON ALT PAGE C

2:53:07.274 143.87 1956 172 7 RT 1

144.00 2050 181 7 RT 1

2:53:29.025 159.52 2157 190 7 RT 1

SUBSYS = 1 TOTAL = 3

2:53:19.359 143.87 1955 172 7 RT 1

144.25 1979 173 7 RT 1

111.20 2051 181 7 RT 1

2:53:19.797 117.52 2094 194 7 RT 1

159.75 2158 190 7 RT 1

SUBSYS = 1 TOTAL = 5

2:53:31.371 113.25 1955 172 7 RT 1

141.00 1979 173 7 RT 1

144.25 2050 181 7 RT 1

2:53:31.910 147.97 2091 183 7 RT 1

159.62 2159 190 7 RT 1

SUBSYS = 1 TOTAL = 5

2:53:43.457 143.97 1955 172 7 RT 1

144.25 1990 174 7 RT 1

144.00 2019 177 7 RT 1

111.00 2059 190 7 RT 1

147.97 2093 193 7 RT 1

2:53:43.959 149.75 2157 199 7 RT 1

159.62 2159 199 7 RT 1

SUBSYS = 1 TOTAL = 7

2:53:54.729 52.62 1995 166 7 RT 1

2:53:55.356 143.87 1966 172 7 RT 1

144.12 1976 173 7 RT 1

2:53:55.659 144.20 2050 191 7 RT 1

144.37 2094 194 7 RT 1

2:53:56.044 149.75 2159 199 7 RT 1

159.62 2159 199 7 RT 1

SUBSYS = 1 TOTAL = 7

2:54:07.324 51.12 1902 167 7 RT 1

143.87 1955 172 7 RT 1

141.25 1973 173 7 RT 1

2:54:07.707 144.12 2050 191 7 RT 1

147.50 2109 195 7 RT 1

2:54:09.075 149.75 2157 199 7 RT 1

159.62 2159 199 7 RT 1

SUBSYS = 1 TOTAL = 7

2:54:19.735 144.00 2050 191 7 RT 1

149.75 2157 199 7 RT 1

2:54:20.173 159.75 2157 199 7 RT 1

SUBSYS = 1 TOTAL = 3

2:54:31.441 143.87 1970 173 7 RT 1

144.00 1972 173 7 RT 1

111.12 2015 177 7 RT 1

2:54:31.916 144.00 2051 191 7 RT 1

149.75 2157 199 7 RT 1

2:54:32.193 159.75 2157 199 7 RT 1

SUBSYS = 1 TOTAL = 5

2:54:43.519 143.87 1955 172 7 RT 1

144.25 1979 173 7 RT 1

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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.