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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 STIME	Range+Azimuth Direction equal JAL #1628	11/18/86	PAGE 1
RANGE	AGP	DEG	Q	BEACON	ALT	QUA	SYS
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
SUBSYS	2:12:35.481 RT	1
2:12:45.630	103.25 RT	1
2:12:57.716	183.25	160	14	?	1550-3	351-3 BT	1
SUBSYS	2:13:09.799	161.62	160	14	?	1550-3	351-3 RB	1
2:13:21.829	160.00	161	14	?	1550-3	351-3 RB	1
2:13:33.723	178.37	163	14	?	1650-3	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
	2 MODE C TOTAL = 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
	2 MODE C TOTAL = 1
SUBSYS	2:14:09.926	173.50	167	14	?	1550-3	350-3 RB	1
2:14:11.807	103.25	610	71	? RT	1
	2 MODE C TOTAL = 1
SUBSYS	2:14:21.952	171.87	167	14	0	1550-3	350-3 RB	1
	171.62	169	14	? RT	1
	103.25	806	70	?
SUBSYS	2:14:34.042	170.12	172	15	?	1550-3	350-3 RB	1
	170.25	169	14	0 RT	1
	103.25	807	70	?
SUBSYS	2:14:45.872	168.62	170	14	?	1550-3	350-3 RB	1
	1 MODE C TOTAL = 1
	167.00	172	15	?	1550-3	349-3 RB	1
SUBSYS	2:14:59.833	103.37	807	70	? RT	1
	2 MODE C TOTAL = 1
	165.37	173	15	?	1550-3	349-3 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.