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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-DAPA	PAGE	11CLS
TIME	ACID/SX	ABC/SY	RBC	FRM	RALT	PACP	PDEG	PRAN	RX	RY	DDEG	DRAN	XV	YV	BDG	SPD	ADS	C	SYS	11CLS
2:52:14.459	JL1629-01011550	1550	47	309	1927	169	90.39	16.64	-97.15	169	99.06	125	-491	165	496	UAR	N	1	NRM
2:52:25.434	JL1629-01011550	1550	47	309	1925	169	92.03	15.93	-93.75	169	90.43	144	-477	163	499	UAR	N	1	NRM
2:52:39.515	JL1629-01011550	1550	47	309	1925	169	93.69	16.96	-90.40	169	92.11	119	-492	166	495	UAR	N	1	NRM
2:52:50.401	JL1523-01011550	1550	47	329	1926	169	95.32	17.26	-92.02	169	93.75	99	-491	165	195	UAR	N	1	NRM
2:53:02.124 1550	07	309	4205	352	177.97	-24.75	175.25	352	178.62	0	0	45	0 2	NRM
2:53:02.143	JL1623-21211552	1550	47	309	1927	169	95.99	17.45	-93.75	169	95.53	75	-490	171	499	UAR	N	1	NRM
2:53:11.179	JL1623-20071550	1550	20	329	4207	352	174.73	-24.26	174.67	352	176.99	145	-467	162	490	UAR	N	2	NRM
2:53:14.155	JL1623-01011550	1550	47	309	1925	159	93.64	13.18	-95.26	169	97.13	122	-435	169	497	UAR	N	1	NRM
2:53:25.350	JL1623-20071550	1550	30	309	4209	352	173.10	-23.51	173.14	352	175.37	195	-462	157	532	UAR	N	2	NRM
2:53:25.551	JL1623-21211550	1550	47	309	1929	159	100.30	17.39	-95.96	169	99.79	66	-492	172	198	UAR	N	1	NRM
2:53:33.335	JL1623-20071550	1550	42	329	4209	352	171.35	-23.79	171.32	352	173.59	109	-499	167	530	UAR	N	2	NRM
2:53:33.505	JL1523-01011550	1550	47	309	1933	169	101.93	19.23	-93.59	169	127.42	42	-491	175	497	UAR	N	1	NRM
2:53:52.402	JL1523-20071550	1550	47	329	4206	352	169.65	-23.82	169.59	352	171.96	47	-499	174	503	UAR	N	2	NRM
2:53:50.524	JL1523-01011550	1550	47	329	1931	169	103.56	19.32	-102.19	169	102.25	42	-492	175	495	UAR	N	1	NRM
2:54:02.199	JL1529-01211550	1550	47	309	1931	169	105.21	19.64	-101.90	169	103.80	55	-492	173	497	UAR	N	1	NRM
2:54:02.523	JL1523-20071550	1550	47	309	4205	352	167.99	-23.09	169.14	352	170.33	62	-496	172	502	UAR	N	2	NRM
2:54:11.499	JL1529-01211550	1550	47	309	1932	169	106.87	19.62	-103.56	169	125.45	45	-493	174	497	UAR	N	1	NRM
2:54:11.525	JL1523-20071550	1550	47	309	4207	352	166.35	-22.60	165.57	352	163.71	91	-493	169	499	UAR	N	2	NRM
2:54:25.513	JL1529-01211550	1550	47	309	1932	169	128.53	19.26	-105.14	169	107.07	64	-491	172	497	UAR	N	1	NRM
2:54:25.575	JL1523-20271550	1550	47	309	4279	352	164.68	-22.37	154.34	352	166.96	99	-499	169	498	UAR	N	2	NRM
2:54:33.551	JL1523-21011550	1550	47 1935	170	110.15	18.70	-106.95	172	108.74	28	-495	176	496	UAR	N	1	NRM
2:54:33.535	JL1623-20071550	1550	47	329	4229	352	163.03	-21.93	163.26	352	155.33	114	-494	155	495	UAR	N	2	NRM
2:54:50.721	JL1629-01211550	1550	47	309	1934	169	111.81	19.31	-108.39	169	110.34	50	-491	174	496	UAR	N	1	NRM
2:54:50.754	JL1623-20071550	1550	47	329	4210	352	161.39	-21.70	161.65	352	163.70	109	-493	167	495	UAR	N	2	NRM
2:55:02.587	JL1629-01211550	1550	47	309	1934	169	113.43	19.60	-112.02	169	111.99	72	-497	171	494	UAR	N	1	NRM
2:55:02.795	JL1623-20071550	1550	47	329	4229	352	159.70	-21.95	159.34	352	161.92	57	-494	173	499	UAR	N	2	NRM
2:55:14.656	JL1628-01211550	1550	47	309	1933	169	115.10	19.90	-111.71	169	113.73	86	-496	169	495	UAR	N	1	NRM

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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.