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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.

RADAR REINFORGED TARGET REPORTS	11/19/86	PAGE
STIME	RANGE	ACP	DEG	Q	BEACON	ALT	QUA	SYS
2:25:23.192	94.37	314	27	?	1550-3	350-3	RB	1
2:25:35.416	92.87	319	28	?	1550-3	350-3	RB	1
2:25:47.529	91.37	329	28	?	1550-3	350-3	RB	1
2:25:59.543	79.87	331	29	?	1550-3	350-3	RB	1
2:25:11.914	79.37	338	29	?	1550-3	350-3	RB	1
2:25:23.992	75.97	344	30	?	1550-3	350-3	RB	1
2:25:35.325	75.37	353	31	?	1552-3	350-3	RP	1
2:25:47.759	74.00	369	31	?	1550-3	350-3	RB	1
2:26:59.654	72.50	366	32	?	1552-3	350-3	RB	1
2:27:11.740	71.12	373	32	?	1550-3	350-3	RB	1
2:27:23.954	69.52	393	33	?	1552-3 RB	1
2:29:12.229	64.00	417	36	?	1550-3	350-3	RB	1
2:29:35.093	51.37	437	38	?	1550-3	350-3	RB	1
2:29:19.174	62.00	449	39	?	1550-3	350-3	RB	1
2:29:12.262	57.37	468	41	?	1550-3	350-3	RB	1
2:29:24.372	56.12	490	42	?	1550-3	350-3	RB	1
2:29:35.399	54.75	494	43	?	1550-3	350-3	RB	1
2:29:43.593	53.52	507	44	?	1550-3	350-3	RB	1
2:30:30.689	52.37	522	45	?	1550-3	350-3	RB	1
2:30:12.711	51.12	536	47	?	1550-3	350-3	RB	1
2:30:13.059	17.75	597	51	?	1550-3	350-3	RB	1
2:31:13.256	44.87	607	53	?	1550-3	350-3	RP	1
2:31:49.095	40.25	523	54	?	1550-3	350-3	RB	1
2:32:31.307	39.75	529	55	?	1550-3	349-3	RB	1
2:32:37.129	31.20	651	57	?	1550-3	349-3	RB	1
2:32:49.591	32.50	657	57	?	1550-3	349-3	RP	1
2:33:01.521	30.97	659	58	?	1550-3	347-3	RB	1
2:33:13.463	29.37	679	59	?	1550-3	345-3	RB	1
2:33:25.541	27.87	689	60	?	1550-3	344-3	RB	1
2:33:49.717	24.62	716	62	?	1550-3	345-3	RB	1
2:34:13.707	21.50	754	65	?	1550-3	335-3	RB	1
2:34:50.022	17.37	835	73	?	1550-3	330-3	RB	1
2:35:02.111	16.00	871	76	?	1550-3	327-3	RB	1
2:35:25.599	13.87	975	85	?	1550-3	323-3	RB	1
2:35:33.901	12.97	1245	91	?	1552-3	320-3	RB	1
2:35:31.260	12.25	1135	99	?	1550-3	319-3	RB	1
2:36:15.739	12.00	1339	117	?	1550-3	313-3	RB	1
2:36:40.543	12.75	1527	134	?	1550-3	311-3	RB	1
2:36:52.501	13.37	1510	141	?	1550-3	310-3	RB	1
2:37:04.902	14.00	1686	148	?	1550-3	310-3	RB	1
2:37:29.069	15.12	1929	160	?	1550-3	310-3	RB	1
2:37:41.792	15.50	1915	169	?	1550-3	311-3	RB	1
2:39:13.214	15.12	2126	185	?	1550-3	310-3	RB	1
2:39:30.623	16.12	2175	191	?	1550-3	310-3	RB	1
2:39:37.323	15.37	2371	209	?	1550-3	310-3	RB	1
2:39:19.414	15.00	2436	214	?	1550-3	310-3	RB	1
2:39:31.495	14.37	2504	220	?	1550-3	310-3	RB	1
2:39:43.953	13.75	2570	225	?	1550-3	310-3	RB	1
2:39:55.971	13.00	2535	231	?	1550-3	310-3	RB	1
2:40:32.555	12.00	2325	248	?	1550-3	310-3	RB	1
2:43:17.706	15.12	1351	163	?	1550-3	310-3	RB	1
2:45:30.295	17.62	1875	164	?	1550-3	310-3	RB	1
2:50:07.097	72.25	1928	169	?	1550-3	310-3	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.