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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.

BEAGON TARGET REPORTS STIME	11/13/96	PAGE
RANGE	ACP	DEG	Q	DEAGON	ALT	QUA	SYS
2:47:13.763	19.00	1930	169	0	1550-3	312-3	BT	1
2:47:19.137	49.00	2077	182	0	1550-3	310-3	BT	1
2:47:30.925	50.62	1929	169	0	1550-3	310-3	BT	1
2:47:31.155	50.76	2097	184	0	1550-3	310-3	BT	1
2:47:31.657	50.97	2244	197	0	1550-1 BT	1
2:47:42.875	52.25	1928	169	0	1550-3	310-3	BT	1
2:17:13.250	52.37	2099	194	0	1550-3	310-3	BT	1
2:17:13.325	52.37	2227	195	0	1550-3 BT	1
2:17:54.992	54.00	1927	169	0	1550-3	310-3	BT	1
2:47:55.394	54.00	2104	184	0	1560-3	310-3	BT	1
2:47:55.707	54.12	2220	195	0	1550-1	310-3	BT	1
2:49:85.731	55.52	1927	169	0	1560-3	310-3	BT	1
2:49:07.491	55.75	2115	195	0	1550-3	312-3	BT	1
2:49:18.759	57.25	1926	169	0	1560-3	310-3	BT	1
2:49:19.511	57.37	2116	185	0	1550-3	310-3	BT	1
2:49:38.953	59.00	1927	169	0	1550-3	310-3	BT	1
2:19:31.229	59.12	2115	195	0	1550-3	312-3	BT	1
2:49:42.873	60.62	1927	169	0	1550-3	310-3	BT	1
2:49:43.249	60.75	2111	185	0	1550-3	310-3	BT	1
2:19:51.955	52.25	1927	169	0	1550-3	310-3	BT	1
2:19:55.332	52.37	2122	196	0	1550-1 BT	1
2:49:07.040	64.00	1927	169	0	1550-3	310-3	BT	1
	64.00	1998	175	0	1550-1 BT	1
2:19:19.933	55.52	1928	169	0	1550-3	310-3	BT	1
2:49:30.995	67.25	1928	169	0	1550-3	310-3	BT	1
2:49:42.993	69.87	1927	169	0	1550-3	310-3	BT	1
2:49:55.012	70.50	1927	169	0	1550-3	310-3	BT	1
2:50:31.017	75.50	1922	159	0	1560-3	310-3	BT	1
2:50:31.831	75.62	2207	193	0	1550-1 BT	1
2:51:07.155	80.50	1925	169	0	1560-3	309-3	BT	1
2:51:19.193	82.12	1930	159	0	1550-3	309-3	BT	1
2:51:31.163	83.75	1929	169	0	1550-3	309-3	BT	1
2:51:43.250	95.37	1930	169	0	1550-3	309-3	BT	1
2:51:55.335	97.00	1928	169	0	1560-3	309-3	BT	1
2:52:27.223	99.75	1925	169	0	1550-3	309-3	BT	1
2:52:19.315	92.37	1925	169	0	1560-3	309-3	BT	1
2:52:31.349	92.00	1927	169	0	1550-3	309-3	BT	1
2:52:43.182	170.62	4003	351	0	1550-3 BT	1
2:52:43.179	93.62	1927	169	0	1550-3	309-3	BT	1
2:52:55.320	95.37	1928	169	0	1550-3	309-3	BT	1
2:53:19.359	98.62	1929	169	0	1550-3	309-3	BT	1
2:53:31.371	120.25	1930	169	0	1550-3	309-3	BT	1
2:53:43.457	121.87	1930	169	0	1550-3	309-3	BT	1
2:53:55.355	123.52	1930	169	0	1550-3	309-3	BT	1
2:54:07.324	105.25	1932	169	0	1550-3	309-3	BT	1
2:54:10.481	126.87	1931	169	0	1560-3	309-3	BT	1
2:54:31.441	179.50	1935	170	0	1550-3 BT	1
2:54:43.510	112.12	1933	169	0	1550-3	309-3	BT	1
2:54:55.501	111.75	1933	169	0	1550-3	309-3	BT	1
2:55:02.432	113.50	1933	169	0	1550-3	309-3	BT	1
2:55:19.522	115.12	1933	169	0	1550-3	309-3	BT	1
2:55:31.563	116.75	1933	169	0	1550-3	309-3	BT	1
2:55:43.261	119.37	1931	169	0	1550-3	309-3	BT	1

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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.