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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.

FRACKING-DAPA
TIME	ACID/SX	ABC/SY	RBC	PRM	RALT	PACP	PDE3	PRAN	RX	RY	DDE3	DRAN	XV	YV	HDG	SPD	ADS	C	PAGE	13
CLS
2:57:51.779	JL1629-00071550
=18.00-137.17	1550	47	285	4011	352	136.73	-19.00	137.29	352	138.95	66	-475	172	492	UAR E	2	NRM
2:56:03.007	1550
24.26-133.29	1550	07	292	1931	169	135.99	24.26	-133.79	169	135.25	0	0	45	0 1	NPM
2:58:03.015	JL1629-01011550
=23.40-134.34	1550	47	282	1936	170	137.97	23.07	-134.26	170	136.58	21	-490	177	491	UAR E	1	NRM
2:58:03.325	JL1629-00071550
=17.98-135.56	1550	47	281	4209	352	135.16	-19.20	135.54	352	137.35	33	-176	175	479	UAR F	2	NPM
2:58:15.075	1550
24.25-133.73 06 1931	169	135.99	24.26	-133.79	169	136.25	0	0	45	0 1	NRM
2:58:15.032	JL1529-01011550
=23.51-135.90	1550	47	279	1937	170	139.50	23.54	-135.70	170	133.07	26	-473	175	474	UAR E	1	NRM
2:59:15.979	JL1529-00071550
=17.92-134.01	1550	47	278	4209	352	133.61	-17.79	134.17	352	135.84	40	-470	175	474	UAR E	2	NRM
2:53:27.111	1550
24.25-133.73 05 1931	169	135.93	24.26	-133.79	169	136.25	0	0	45	0 1	NRM
2:58:27.117	JL1629-01011550
=23.71-137.43	1550	47	275	1937	172	141.04	23.81	-137.29	170	139.69	43	-468	174	471	UAR E	1	NRM
2:58:27.975	JL1523-00071550
=17.43-132.48	1550	47	275	4011	352	132.05	-17.17	132.52	352	131.23	81	-463	170	471	UAR E	2	NRM
2:58:39.947	1550
24.26-133.73 04 1931	169	135.98	24.26	-133.79	159	135.25	0	0	45	0 1	NRM
2:59:39.952	JL1523-01011550
=23.95-138.96	1550	47	272	1937	170	142.54	23.95	-139.31	170	141.21	44	-452	174	456	UAR E	1	NRM
2:58:39.984	JL1523-00071550
=17.45-130.92	1550	47	272	4209	352	130.52	-17.79	131.03	352	132.71	33	-466	175	458	UAR E	2	NRM
2:58:51.203	JL1523-01011550
=24.17-140.45	1550	47	259	1937	172	141.05	24.32	-140.25	170	142.69	70	-454	171	451	UAR E	1	NRM
2:58:52.065	JL1629-00071550
=17.35-123.40	1550	47	269	4009	352	129.02	-17.39	129.56	352	131.20	31	-460	176	452	UAR E	2	NRM
2:59:03.072	JL1623-01011550
=24.40-141.92	1550	47	255	1937	172	145.53	24.37	-141.76	170	144.21	69	-448	171	455	UAR E	1	NRM
2:59:04.132	JL1523-00071550
=12.01-122.03	1550	47	255	4210	352	127.49	-16.79	129.01	352	129.58	70	-454	171	461	UAR E	2	NRM
2:59:15.123	JL1523-01011550
=24.53-143.40	1550	47	252	1939	170	147.00	24.40	-143.29	172	145.73	52	-446	173	451	UAR E	1	NRM
2:59:15.326	JL1623-00071550
=15.73-125.10	1550	47	252	4210	352	125.99	-16.79	126.50	352	129.07	71	-451	171	458	UAR E	2	NRM
2:59:27.225	JL1523-01011550
=24.79-144.95	1550	47	259	1937	170	149.46	24.97	-144.73	172	147.23	67	-440	171	447	UAR E	1	NRM
2:59:28.280	JL1523-00071550
=13.45-124.92	1550	47	259	4011	352	124.49	-16.39	125.03	352	126.56	83	-445	169	454	UAR E	2	NRM
2:59:39.211	JL1523-01011550
=25.53-145.23	1550	47 1934	169	149.92	25.23	-146.04	169	149.63	149	-425	162	451	UAR E	1	NRM
2:59:40.392	JL1523-00071550
=15.39-123.40	1550	47	255	4213	352	123.01	-15.81	123.59	352	125.05	113	-437	165	451	UAR E	2	NRM
2:59:51.343	JL1629-01011550
=25.60-142.75	1550	47	252	1935	170	151.45	25.15	-147.71	172	150.24	93	-441	169	450	UAR E	1	NRM
2:59:52.443	JL1629-00071550
=15.79-122.00	1550	47	252	4012	352	121.52	-16.00	122.06	352	123.56	84	-441	169	449	UAR E	2	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.