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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.

  • 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…

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

11/18/86	PAOK
RADAR-REINFORCED-PAROEF-REPORTS QUA	SYS
STIME	RANGE	ACP	DEG	Q	BEACON	ALT
2:50:19.053	73.87	1927	169	?	1550-3	310-3	RB	1
2:50:43.112	77.12	1925	169	?	1550-3	310-3	RB	1
2:50:55.137	79.97	1924	169	?	1550-3	309-3	RB	1
2:52:55.257	179.08	4005	352	?	1550-3	309-3	RB	2
2:53:07.336	176.37	4006	352	?	1550-3	309-3	RB	2
2:53:07.274	97.00	1925	169	?	1550-3	309-3	RB	1
2:53:19.421	174.75	4008	352	?	1550-3	309-3	RB	2
2:53:31.497	173.00	4006	352	?	1550-3	309-3	RB	2
2:53:43.583	171.37	4005	352	?	1550-3	309-3	PB	2
2:53:65.605	169.75	4007	352	?	1550-3	309-3	RB	2
2:51:37.701	158.12	4008	352	?	1550-3	309-3	RB	2
2:54:19.736	155.37	4009	352	?	1550-3	309-3	RB	2
2:54:31.817	154.75	4009	352	?	1550-3	309-3	RB	2
2:54:43.896	163.12	4009	352	?	1550-3	309-3	RB	2
2:51:55.977	151.37	4007	352	?	1550-3	309-3	RB	2
2:55:07.975	159.75	4009	352	?	1550-3	309-3	RB	2
2:55:20.093	159.12	4009	352	?	1550-3	309-3	RB	2
2:55:32.177	156.60	4009	352	?	1550-3	309-3	RB	2
2:55:41.261	154.75	4010	352	?	1550-3	309-3	RB	2
2:55:53.291	153.12	4010	352	?	1550-3	309-3	RB	2
2:55:03.375	151.50	4013	352	?	1550-3	309-3	RB	2
2:55:20.452	149.75	4009	352	?	1550-3	309-3	RB	2
2:55:31.728	125.12	1931	169	?	1550-3	305-3	RB	1
2:55:32.473	149.12	4009	352	?	1550-3	326-3	RB	2
2:56:43.591	126.62	1934	169	?	1550-3	303-3	RB	1
2:56:44.555	145.50	1910	352	?	1550-3	302-3	RB	2
2:56:55.772	129.25	1935	170	?	1550-3	299-3	RB	1
2:56:56.549	141.87	4011	352	?	1650-3	299-3	RB	2
2:57:37.792	129.97	1934	169	?	1550-3	296-3	RB	1
2:57:63.732	143.25	4011	352	?	1550-3	296-3	RB	2
2:57:19.593	131.52	1930	169	?	1550-3	292-3	RB	1
2:57:20.753	141.52	4011	352	?	1550-3	292-3	RB	2
2:57:32.943	140.12	4010	352	?	1550-3	289-3	RB	2
2:57:44.032	130.50	4011	352	?	1650-3	286-3	RB	2
2:57:55.765	135.00	1931	169	?	1550-3	292-3	RB	1
2:57:57.018	135.87	4009	352	?	1650-3	281-3	RB	2
2:59:07.945	137.75	1936	170	?	1550-3	278-3	RB	1
2:59:09.035	135.37	4012	352	?	1550-3	278-3	RB	2
2:55:21.120	133.75	4012	352	?	1550-3	275-3	RB	2
2:59:31.763	143.87	1937	170	?	1550-3	272-3	RB	1
2:59:33.269	132.25	4009	352	?	1550-3	272-3	RB	2
2:59:43.914	142.37	1936	170	?	1550-3	269-3	RB	1
2:55:15.223	133.75	4009	352	?	1550-3	259-3	RB	2
2:58:55.995	143.87	1937	170	?	1550-3	265-3	RB	1
2:59:57.319	129.12	4011	352	?	1550-3	265-3	RB	2
2:59:27.614	145.37	1939	170	?	1550-3	262-3	RB	1
2:59:09.390	127.52	4010	352	?	1550-3	252-3	RB	2
2:59:10.222	115.87	1937	170	?	1550-3	259-3	RB	1
2:59:21.477	125.12	4011	352	?	1550-3	259-3	RB	2
2:59:31.316	149.37	1933	159	?	1550-3 RB	1
2:59:33.512	124.52	4013	352	?	1550-3	255-3	RB	2
2:59:43.337	149.87	1939	170	?	1550-3	262-3	RB	1
2:59:45.590	123.12	4011	352	?	1550-3	252-3	RB	2

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.