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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 68 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…
SJBSYS = 1 TOTAL = 5

2:51:43.250 143.97 1937 172 7 RT 1

144.25 1999 174 7 RT 1

2:51:43.500 111.00 2050 191 7 RT 1

117.75 2127 195 7 RT 1

2:51:43.976 159.62 2153 190 7 RT 1

SJBSYS = 1 TOTAL = 5

2:51:55.335 114.25 1977 173 7 RT 1

113.97 1957 172 7 RT 1

114.12 2217 177 7 RT 1

2:51:55.525 144.20 2051 191 7 RT 1

147.62 2099 194 7 RT 1

119.75 2155 199 7 RT 1

2:51:55.962 159.75 2159 192 7 RT 1

SJBSYS = 1 TOTAL = 7

2:52:27.229 143.62 1970 173 7 RT 1

144.37 1990 174 7 RT 1

144.03 2015 177 7 RT 1

2:52:07.605 144.12 2055 190 7 RT 1

147.75 2096 183 7 RT 1

153.75 2157 190 7 RT 1

SJBSYS = 1 TOTAL = 6

2:52:19.316 143.50 1954 172 7 RT 1

144.25 1979 173 7 RT 1

144.12 2015 177 7 RT 1

144.12 2053 190 7 RT 1

2:52:19.595 144.37 2182 194 7 RT 1

149.75 2157 199 7 RT 1

153.75 2159 190 7 RT 1

SJBSYS = 1 TOTAL = 7

2:52:31.319 143.97 1955 172 7 RT 1

144.12 1975 173 7 RT 1

144.30 2014 177 7 RT 1

2:52:31.552 141.00 2002 131 7 RT 1

143.52 2073 192 7 RT 1

147.52 2096 193 7 RT 1

153.25 2153 193 7 RT 1

SJBSYS = 1 TOTAL = 7

2:52:43.179 143.87 1953 172 7 RT 1

144.25 1973 173 7 RT 1

2:52:43.551 144.12 2059 192 7 RT 1

147.52 2096 191 7 RT 1

149.75 2157 189 7 PT 1

2:52:43.993 159.62 2167 190 7 PT 1

SJBSYS = 1 TOTAL = 5

2:52:55.322 144.25 1975 173 7 RT 1

143.97 1969 173 7 RT 1

144.12 2017 177 7 RT 1

2:52:55.532 111.12 2031 191 7 RT 1

147.75 2173 195 7 RT 1

2:52:55.946 149.75 2152 189 7 RT 1

159.62 2169 190 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.