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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.

PRACKING-DAPA	11/19/86	PAGE	6
TIME	ACID/SX	ABC/SY	RBC	FRM	RALT	PACP	PDEG	PRAN	RX	RY	DDES	DRAN	KV	YV	HDG	SPD	ADS C	SYS	CLS
	4.13	-8.37
2:42:30.597	JL1629-0057-1550	1550	21	3732	333	10.11	4.63	7.37	327	8.73	30	499	3.501	UAR-N 1	PAR
	-4.62	7.37
2:42:30.599	0057-1513	1550	10	310	4074	353	7.07	.00	.00
	.21	7.06
2:42:30.701	0057-1617	1550	10	310	3526	309	11.83	.00	.00
	-9.06	7.60
2:42:35.550 1550	15	1531	143	10.57	5.14	7.70	146	9.39	346	205	120	403
	5.14	-7.79
2:42:42.669	JL1629-0057-1550	1550	14	3940	337	11.53	4.53	9.33	333	10.03	30	499	3.501	UAR-N 1	PAR
	-4.53	9.03
2:42:42.572	0057-1513	1550	10	310	99	8	9.03	.00	.00
	1.20	7.93
2:42:42.675	0057-1517	1550	10	310	3523	309	13.53	.00	.20
	-10.40	8.64
2:42:43.295 1550	14	1603	140	11.82	6.29	9.49	143	10.62	346	205	120	403
	6.29	-3.13
2:42:55.054	JL1623-0057-1550	1550	14	3376	340	13.10	4.42	10.70	337	11.60	30	499	3.501	UAR-N 1	PAR
	-4.42	10.70
2:42:55.057	0057-1513	1550	10	310	215	19	8.80	.00	.00
	2.94	9.32
2:42:55.059	0057-1517	1550	10	310	3495	307	15.14	.00	.00
	-12.00	9.23
2:43:25.232 1550	07	310	1964	153	15.11	4.49	15.49	153	16.12	0	0	45	0
	4.19	-15.19
2:43:37.017 1550	20	310	1984	155	19.09	4.60	17.90	154	17.59	38	446	175	449
	4.60	-17.00
2:43:49.053 1550	30	310	1993	155	20.79	4.84	19.52	155	19.29	56	472	173	477
	4.32	-19.53
2:44:01.147	JL1628-0101-1550	1550	40	310	1992	166	22.33	5.09	20.10	165	20.68	64	467	172-473	UAR-N 1	NRM
	5.06	-20.14
2:44:13.213	JL1623-0101-1550	1550	47	310	1995	166	23.92	5.29	21.73	166	22.30	65	463	172-475	UAR-N 1	NRM
	5.23	-21.70
2:44:18.555 1550	22	310	1939	170	24.11	3.56	22.20	170	22.55	128	471	164-497
	3.56	-22.20
2:44:25.277	JL1623-0101-1550	1550	47	310	1900	165	25.55	5.55	23.45	166	24.05	69	473	171-480	UAR-N 1	NRM
	5.53	-23.31
2:44:25.619 1550	21	1934	169	25.74	4.81	28.76	170	24.16	128	471	164-497
	4.21	-23.76
2:44:37.353	JL1625-0101-1550	1550	47	310	1901	157	27.17	5.87	24.93	166	25.55	77	474	170-481	UAR-N 1	NRM
	5.31	-24.29
2:44:37.724 1550	23	310	1935	170	27.35	4.23	25.37	170	25.90	114	472	166-405
	4.31	-25.37
2:44:49.293	JL1623-0101-1550	1550	47	310	1907	167	29.82	5.95	26.73	167	27.34	59	482	173-480	UAR-N 1	NRM
	5.95	-26.54
2:44:49.542 1550	22	1933	169	29.97	4.70	25.36	170	27.43	114	472	166-405
	4.70	-25.95
2:45:01.375	JL1628-0101-1550	1550	47	310	1917	168	30.47	5.92	28.39	168	29.99	31	491	176-493	UAR-N 1	NRM
	5.99	-28.21
2:45:01.594 1550	16	1931	169	30.60	5.07	23.53	169	29.24	114	472	166-405
	5.07	-28.53
2:45:13.255	JL1623-0101-1550	1550	45	1921	169	32.10	5.09	29.35	169	39.49	31	491	176-493	UAR-N 1	NRM
	6.09	-29.35

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.