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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.

SUBSYS = 1	TOTAL = 5	MODE G	TOTAL = 3
2:45:01.313	UA59 -0077 2332	2332	47	290	1959	153	120.10	34.40	-115.34	163	121.69	-90	441	349	449	DEP N	1	NRM
2:45:01.591	JL1629 -0121 1550	1550	32	310	1918	158	39.05	7.39	-36.52	163	37.39	82	-502	172	512	UAR N	1	NRM
2:45:01.593	7.45 -36.60 47 1990	174	144.20	15.43	-143.29	173	144.62	-103	-16	261	105 RO 1	NRM
2:45:02.053	15.32 -143.37 17 2069	191	110.41	-4.29	-141.95	191	141.94	-39	179	355	492 RO 1	PAR
-4.29 -141.95
SUBSYS = 1	TOTAL = 5	MODE G	TOTAL = 3
2:46:13.400	TOTEM71-0144 4371	4371	47	211	1904	159	94.37	34.27	-95.79	159	93.49	126	-319	161	336	UAR N	1	NRM
34.04 -96.91
2:46:13.402	UA69 -0077 2332	2332	47	290	1959	153	119.61	34.15	-115.14	153	120.19	-85	440	349	449	DEP N	1	NRM
34.13 -115.14
2:45:13.771	JL1629 -0121 1550	1550	40	310	1915	159	40.71	9.71	-39.15	163	33.99	129	-491	167	503	UAR N	1	NRM
7.89 -39.21
2:45:13.772	0002	47 1990	174	144.17	15.87	-143.23	173	144.53	-79	-9	264	93 RO 1	NRM
15.17 -143.35
2:46:14.132	0000	14 2069	191	139.91	-4.42	-140.34	191	110.35	-39	479	355	492 RO 1	PAT
-4.42 -149.34
SUBSYS = 1	TOTAL = 5	MODE G	TOTAL = 3
2:45:25.497	TOTEM71-0144 4371	4371	47	211	1905	159	95.45	34.31	-97.75	159	91.49	132	-316	162	333	UAR N	1	NRM
34.37 -97.95
2:46:25.498	UA69 -0077 2332	2332	47	290	1958	163	117.12	33.90	-113.55	153	119.71	-94	442	349	449	DEP N	1	NRM
33.90 -113.65
2:46:25.852	JL1629 -0121 1550	1550	47	310	1914	169	42.35	9.29	-39.75	159	40.51	112	-497	167	499	UAR N	1	NRM
9.29 -39.92
2:46:25.954	0002	47 1990	174	144.02	15.64	-143.12	173	144.52	-59	9	279	60 RO 1	NRM
15.04 -143.29
SUBSYS = 1	TOTAL = 4	MODE G	TOTAL = 3
2:46:37.501	TOTEM71-0144 4371	4371	47	211	1905	159	95.53	34.59	-99.37	159	95.63	94	-316	163	330	UAR N	1	NRM
34.65 -98.92
2:46:37.503	UA59 -0077 2332	2332	47	290	1959	163	115.62	33.46	-112.21	153	117.22	-96	439	347	449	DEP N	1	NRM
33.54 -112.20
2:46:37.970	JL1629 -0121 1550	1550	47	310	1915	159	41.03	9.45	-41.51	159	42.39	96	-192	163	507	UAR N	1	NRM
9.54 -41.49
SUBSYS = 1	TOTAL = 3	MODE G	TOTAL = 3
2:46:49.592	TOTEM71-0144 4371	4371	47	211	1907	159	97.61	34.85	-99.96	159	96.75	95	-317	164	329	UAR N	1	NRM
34.92 -89.99
2:46:49.593	UA69 -0077 2332	2332	47	290	1959	163	114.11	33.01	-110.79	153	115.70	-112	425	345	447	DEP N	1	NRM
33.14 -110.75
2:46:49.259	JL1629 -0121 1550	1550	47	310	1919	169	45.59	9.57	-43.14	159	41.62	73	-424	171	501	UAR N	1	NRM
8.71 -43.14
2:46:50.357	0000	24 2256	191	147.75	-3.94	-147.70	191	142.61	-59	9	279	59 RO 1	NRM
-3.94 -147.70
SUBSYS = 1	TOTAL = 4	MODE G	TOTAL = 3
2:47:01.453	TOTEM71-0144 4371	4371	47	211	1909	159	98.66	34.93	-91.21	159	97.77	66	-320	169	327	UAR N	1	NRM
35.07 -91.06
2:47:01.454	UA59 -0077 2332	2332	47	290	1955	153	112.63	33.12	-120.19	153	111.23	-81	442	319	451	DEP N	1	NRM
32.93 -129.25
2:47:01.919	JL1629 -0121 1550	1550	45 1920	169	47.35	8.96	-44.79	163	45.72	73	-424	171	501	UAR N	1	TAP
9.95 -44.79
2:47:01.321	0101-1517	1550	12	317	1932	159	47.29	9.29	-44.95
9.51 -46.50

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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.