Documents / Document

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.

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

BEACON STIME	TARGET REPORTS	11/18/86	PAGE	9 SYS
RANGE	AGP	DEG	Q
SUBSYS = 1 TOTAL =	2:31:37.736	48.37	899	79	? RT	1
2:31:38.114	51.87	893	78	?	1200-3	65-3	RB	1
2:31:49.086	40.25	623	54	?	1550-3	350-3	RB	1
2:31:49.836	48.87	889	78	? RT	1
	52.12	896	78	?	1200-3	81-3	RB	1
	3 MODE C TOTAL =	2
SUBSYS = 1 TOTAL =	2:32:01.307	38.75	629	55	?	1550-3	349-3	RB	1
2:32:01.807	103.37	806	70	? RT	1
2:32:02.122	50.00	892	78	? RT	1
	52.00	905	79	?	1200-3	91-3	RB	1
SUBSYS = 1 TOTAL =	2:32:13.011	4 MODE C TOTAL =	2
2:32:13.367	37.25	632	55	? RT	1
2:32:13.764	37.12	636	55	0	1550-3	349-3	BT	1
2:32:14.141	50.62	865	77	? RT	1
	51.37	905	79	?	1200-3	89-3	RB	1
	4 MODE C TOTAL =	2
SUBSYS = 1 TOTAL =	2:32:25.105	35.75	644	56	? RT	1
2:32:25.481	35.62	644	56	?	1550-3	349-3	BT	1
2:32:25.856	50.62	878	77	? RT	1
	50.87	900	79	0	1200-3	56-3	BT	1
SUBSYS = 1 TOTAL =	2:32:37.879	49.87	862	75	? RT	1
2:32:38.255	50.00	892	78	?	1200-3	38-3	RB	1
	2 MODE C TOTAL =	1
2:32:49.967	49.25	897	78	?	1200-3	69-3	RB	1
SUBSYS = 1 TOTAL =	2:33:01.995	49.37	904	79	?	1200-3	92-3	RB	1
	1 MODE C TOTAL =	1
2:33:14.213	49.75	908	79	?	1200-3	99-3	RB	1
2:33:14.714	37.12	1033	90	0	4441-3	6-3	BT	1
SUBSYS = 1 TOTAL =	2:33:25.916	103.37	806	70	? RT	1
2:33:26.293	51.25	904	79	? RT	1
	50.25	910	79	?	1200-3	101-3	RB	1
2:33:26.668	37.00	1033	90	0	4441-3 BT	1
SUBSYS = 1 TOTAL =	2:33:37.946	51.62	891	78	? RT	1
2:33:38.321	50.62	907	79	?	1200-3	103-3	RB	1
2:33:38.696	36.87	1025	90	0	4441-3 BT	1
	3 MODE C TOTAL =	1
SUBSYS = 1 TOTAL =	2:33:49.968	51.75	877	77	? RT	1
2:33:50.408	50.50	898	78	?	1200-3	56-3	RB	1
2:33:50.720	36.87	1032	90	0	4441-3 BT	1
	3 MODE C TOTAL =	1
SUBSYS = 1 TOTAL =	2:34:02.056	51.50	873	76	? RT	1
	49.87	887	77	?	1200-3	43-3	RB	1
2:34:02.806	36.75	1032	90	0	4441-3	6-3	BT	1
	3 MODE C TOTAL =	2
SUBSYS = 1 TOTAL =	2:34:14.081	103.25	806	70	? RT	1
	49.00	888	78	0	1200-3	71-3	BT	1
2:34:14.833	36.75	1032	90	0	4441-3	6-3	BT	1
	3 MODE C TOTAL =	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.