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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	AGP	DEG	Q	11/18/86	ALT	PAGE	2 SYS
	2:15:10.416	35.25	240	21	7	1200-3	1200-3 Code	RB	1
SUBSYS = 1	2:15:22.069	2 MODE C	TOTAL =	2 VFR Aircraft, not under FAA control	RB	1
2:15:22.444	163.75	175	15	7	1550-3	RB	1
2:15:34.159	35.75	238	20	7	1200-3	RB	1
SUBSYS = 1	2:15:34.159	2 MODE C	TOTAL =	2 BT	1
162.25	175	15	0	1550-3 RB	1
162.12	178	15	7	1550-1 RB	1
36.37	235	20	7	1200-3 RB	1
SUBSYS = 1	2:15:36.038	103.25	807	70	7 RT	1
4 MODE C	TOTAL =	2 RT	1
160.75	178	15	7	1550-3	349-3	BT	1
160.50	177	15	BT	1
SUBSYS = 1	2:15:58.083	3 MODE C	TOTAL =	1 RT	1
158.87	178	15	7	1550-3	349-3	BT	1
159.00	179	15	BT	1
2:15:58.458	37.62	231	20	7	1200-3	75-3	RB	1
SUBSYS = 1	2:16:00.024	103.25	807	70	7 RT	1
4 MODE C	TOTAL =	2 RB	1
157.25	180	15	7	1550-3	349-3	BT	1
38.25	226	19	0	1200-3	75-3 BT	1
SUBSYS = 1	2:16:22.196	2 MODE C	TOTAL =	2 RT	1
155.75	182	15	7	1560-3	349-3	RB	1
38.87	226	19	0	1200-3	75-3	BT	1
103.25	806	70	7 RT	1
SUBSYS = 1	2:16:34.300	3 MODE C	TOTAL =	2
154.12	184	16	7	1550-3	349-3	RB	1
39.50	223	19	7 RT	1
39.37	225	19	0	1200-3	75-3	BT	1
SUBSYS = 1	2:16:36.178	103.25	806	70	7 RT	1
4 MODE C	TOTAL =	2 RT	1
152.37	186	16	7	1550-3	349-3	BT	1
152.50	186	16	0	1200-3	75-3 RB	1
SUBSYS = 1	2:16:46.324	4 MODE C	TOTAL =	2 RT	1
150.87	187	16	7	1550-3	349-3	RB	1
40.50	219	19	7	1200-3	75-3 RB	1
2 MODE C	TOTAL =	2
2:17:10.371	149.25	189	16	7	1550-3	349-3	RB	1
41.12	218	19	7	1200-3	75-3 RB	1
2 MODE C	TOTAL =	2
2:17:22.397	147.62	190	16	7	1550-3	349-3	RB	1
41.75	215	16	7	1200-3	75-3 RB	1
2 MODE C	TOTAL =	2
2:17:34.420	146.00	192	16	7	1550-3	349-3	RB	1
42.37	212	18	0	1200-3	75-3 BT	1
2 MODE C	TOTAL =	2
2:17:37.050	36.75	1033	90	0	0313-3	6-3 BT	1
4 MODE C	TOTAL =	3
154.37	194	17	7	1550-3	349-3	RB	1
2:17:48.701	43.00	210	18	7	1200-3	75-3 RB	1
36.37	1015	89	0	0313-3	6-3 BT	1
4 MODE C	TOTAL =	3
2:17:46.444	144.37	194	17	7	1550-3	349-3	RB	1
43.00	210	18	7	1200-3	75-3 RB	1
2:17:48.701	36.37	1015	89	0	0313-3	6-3 BT	1
4 MODE C	TOTAL =	3
154.37	194	17	7	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.