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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.

BEACON	TARGET REPORTS	Range+Azimuth Direction	11/18/86	PAGE	1 SYS
RANGE	AOP	DEG	Q
SUBSYS	2:11:23.549	165.00	862	75	? RT	1
2:11:33.700	194.75	153	13	?	1550-3	350-3	RB	1
2:11:35.518	103.25	808	71	? RT	1
2:11:45.735	2 MODE C TOTAL = 1
SUBSYS	2:11:47.619	193.12	153	13	?	1550-3 RB	1
2:11:57.761	191.50	154	13	?	1550-3	350-3	RB	1
2:11:59.637	103.25	806	70	? RT → RT	1
SUBSYS	2:12:09.786	169.87	155	13	?	1550-3	351-3	RB	1
2:12:21.827	188.25
2:12:33.603	144.37
186.75
186.50
SUBSYS	2:12:35.481	103.25 1550-3 RT	1
2:12:45.630	184.87 1550-3	351-3	RT	1
2:12:57.716	183.25	160	14	?	1550-3	351-3	BT	1
SUBSYS	2:13:09.799	181.62	160	14	?	1550-3	351-3	RB	1
2:13:21.829	180.00	161	14	?	1550-3	351-3	RB	1
2:13:33.723	178.37	163	14	?	1550-3	351-3	RB	1
SUBSYS	2:13:45.810	144.12	146	12	? RT	1
	176.75	165	14	?	1550-3	350-3	RB	1
	176.75	165	14	?	1550-3	350-3	RB	1
SUBSYS	2:13:57.636	175.12	164	14	?	1550-3	350-3	RB	1
2:14:09.551	144.12	37	3	? RT	1
	173.50	167	14	?	1550-3	350-3	RB	1
SUBSYS	2:14:09.926	103.25	610	71	? RT	1
2:14:11.807	2 MODE C TOTAL = 1
2:14:21.952	171.87	167	14	0	1550-3	350-3	RB	1
SUBSYS	2:14:23.833	171.87	167	14	0	1550-3	350-3	RB	1
2:14:34.042	170.12	172	15	? RT	1
2:14:35.916	170.25	169	14	0	1550-3	350-3	RT	1
SUBSYS	2:14:45.872	103.25	806	70	? RB	1
2:14:45.872	168.62	170	14	?	1550-3	350-3	RB	1
2:14:57.954	167.00	172	15	?	1550-3	349-3	RB	1
SUBSYS	2:14:59.833	103.37	807	70	? RT	1
2:15:10.041	165.37	173	16	?	1550-3	340-3	RB	1

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.