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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.

TRACKING-DATA TIME	ACID/SX	ABC/SY	RBC	PRM	RALT	PACP	PDEG	11/19/06	PAOE	P
PRAN	RX	RY	DDEG	DRAN	KV	YV	HDG	SPD	ADS	C
2:39:37.411	JL1629 -0057	1550	1550	47	310	2236	196	17.00	-3.10	-15.91	191	16.12	-510	-9	268	510	UAR N	1	NRM
2:39:49.397	JL1623 -0057	1550	1550	35	310	2303	202	16.65	-4.60	-15.31	195	16.02	-499	92	280	498	UAR N	1	NRM
2:39:01.726	JL1629 -0057	1550	1550	35	310	2371	203	16.21	-6.06	-14.53	202	15.77	-459	157	292	497	UAR N	1	NRM
2:39:14.450	JL1623 -0057	1550	1550	45	310	2412	214	15.73	-7.23	-13.51	203	15.32	-127	252	302	497	UAR N	1	NRM
2:39:25.575	JL1623 -0057	1550	1550	47	310	2510	220	15.39	-9.40	-12.40	214	15.07	-393	302	307	499	UAR N	1	NRM
2:39:33.554	JL1623 -0057	1550	1550	47	310	2533	227	14.79	-9.25	-11.00	220	14.42	-342	353	315	196	UAR N	1	NRM
2:39:51.112	JL1628 -0257	1550	1550	47	310	2655	233	14.09	-9.85	-9.56	225	13.67	-276	413	325	499	UAR N	1	NRM
2:40:03.133	JL1623 -0257	1550 45 2732	212	14.10	-11.31	-9.39	233	14.17	-276	413	325	499	UAR N	1	PAR
2:40:03.135	0257-1605	1550	1550	13	310	2720	237	11.81	-10.19	-9.06 22	498	2	499 1	RTT
2:40:15.453	JL1623 -0257	1550	1550	27	310	2793	244	11.14	-10.25	-6.46	237	12.17	18	497	2	497	UAR N	1	PAR
2:40:27.470	JL1523 -0257	1550	1550	37	310	2861	251	10.41	-9.92	-5.03	243	11.05	33	476	3	478	UAR N	1	NRM
2:40:39.352	JL1523 -0257	1550	1550	47	310	2940	253	3.46	-9.23	-3.59	249	10.01	34	159	10	137	UAR N	1	NRM
2:40:51.921	JL1623 -0257	1550 46 3247	267	9.99	-9.26	-1.90	259	9.45	04	459	10	467	UAR N	1	PAR
2:40:51.903	0257-1517	1550	1550	13	310	2380	253	6.97	-9.19	-2.55 120	200	64	465 1	RTT
2:41:24.357	JL1623 -0257	1550	1550	27	310	2914	256	5.67	-7.07	-2.03	254	7.35	417	200	64	462	UAR N	1	PAR
2:41:15.374	JL1623 -0257	1550 25 2953	260	4.17	-5.51	-1.35	256	5.65	417	200	64	462	UAR N	1	PAR
2:41:15.375	0257-1605	1550 12	310	2902	255	4.72	-5.95	-1.97 350	121	79	372 1	DEV
2:41:23.277	JL1623 -0257	1550 22 3265	269	2.72	-4.12	-.59	260	4.19	117	200	64	452	UAR N	1	PAR
2:41:40.327	JL1623 -0257	1550 14 3405	299	1.41	-2.71	-.21	269	2.70	417	200	64	462	UAR N	1	PAR
2:41:53.522	JL1523 -0257	1550	1550 3490	305	5.46	-4.97	2.21	294	5.35	150	312	25	315	UAR N	1	NRM
2:42:05.914	JL1628 -0257	1550	1550	25	310	3614	320	7.42	-4.99	4.06	309	6.38	30	499	3	501	UAR N	1	NRM
2:42:12.745 1550	1550	22	310	1714	150	8.15	2.69	-6.45	157	7.00	346	-205	122	403 1	NRM
2:42:13.255	JL1529 -0257	1550 25 3729	327	8.71	-4.73	5.70	320	7.44	30	499	3	501	UAR N	1	PAR
2:42:13.257	0257-1513	1550	1550	11	310	3924	344	6.41	.00	.00 326	391	42	503 1	RT
2:42:13.270	0057-1517	1550	1550	11	310	3530	310	10.14	.00	.00 -279	418	326	505 1	LT
2:42:24.573 1550 21 1567	146	9.34	3.99	-7.10	150	9.14	346	-275	120	403 1	PAR
2:42:24.574	0157-1525	1550 12	310	1729	151	9.49	3.29	-7.68 242	-291	140	381 1	DEV

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.