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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 91 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…
23.49-132.73
SUBSYS=1	TOTAL=7MODEC TOTAL=3
2:59:02.610 2332	2332	47	114	1793	157	35.93	13.67	-34.50	159	37.20	-10	359	359 1NRM
2:59:03.007	13.70-34.37
2:59:03.009	15501550072921931159135.9824.25-133.79169136.26000450 1NRM
2:59:03.010	24.25-133.7900000061929169133.3524.40-131.09169133.59000450 1NRM
2:59:03.012	24.40-131.09000000171949171139.3921.76-134.91172135.96-256-595203649 1NRM
2:59:03.015	21.76-134.91TOTEM71-01444371261939170131.6122.71-129.39170131.6122.71-129.39 1NRM
2:59:03.015	0144-151343714371132451925169134.9524.35-132.00 1DEV
2:59:03.015	25.31-132.56JL1629-012115501550472921936170137.9723.07-134.26172135.59217-490177491UAR E 1NRM
SUBSYS=1	TOTAL=7MODEC TOTAL=4
2:58:15.075	1550051931159135.9824.26-133.79169135.9824.26-133.79 1NRM
2:58:15.076	0000051929169133.3524.40-131.09169133.59000450 1NRM
2:58:15.073	0000141954171140.2320.90-135.79171139.91-256-595203549 1NRM
2:58:15.090	TOTEM71-014443714371272431929169135.9624.14-133.06169135.5179-237161250UAR E 1PAR
2:59:15.032	JL1629-012115501550472781937170139.5023.54-135.70172139.0726-473176474UAR E 1NRM
SUBSYS=1	TOTAL=5MODEC TOTAL=2
2:59:27.109	0000221935170139.4723.99-135.75170139.173-49217949 1NRM
2:59:27.111	23.99-135.751550051931169135.9824.26-133.79169135.59000450 1NRM
2:59:27.112	24.26-133.79000000041929169133.3524.40-131.29169133.59000450 1NRM
2:59:27.114	24.40-131.09000000161935170140.3923.75-135.93170139.32110-411164425 1NRM
2:59:27.115	TOTEM71-014443714371372421932169132.0123.90-134.10169136.53-19-279193291UAR E 1NRM
2:58:27.117	JL1628-010115501550472751937170141.0423.91-137.29170139.6043-4591741471UAR E 1NRM
2:58:27.454	23.71-137.430000242092193144.87-7.96-144.39

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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.