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.

Open the PDF at page 141 Original source ↗

“Japan Air Lines Flight 1628”3 pages

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
TIME	ACID/SX	ABC/SY	RBC	FRM	RALT	PACP	PDEG	PRAN	RX	RY	DDEG	DRAN	XV	YV	HDG	SPD	ADS	C	SYS	CLS
	39.79	94.91
2:23:13.354	JL1628--0057	-1550	1550	-47	-350	-265	-23	-93.69	-39.73	-93.10	-23	101.41	-30	-496	193	498	-UAR-N	-1	NRM
	39.69	93.14
2:23:30.151	JL1629--0057	-1550	1550	-47	-350	-259	-23	-98.14	-39.57	-91.54	-23	99.89	-32	-495	183	497	-UAR-N	-1	NRM
	39.57	91.50
2:23:42.551	JL1629--0057	-1550	1550	-47	-350	-273	-23	-96.57	-39.43	-93.32	-23	93.23	-31	-495	183	497	-UAR-N	-1	NRM
	39.48	99.94
2:23:51.153	JL1629--0057	-1550	1550	-47	-350	-273	-24	-95.05	-39.42	-99.20	-24	-96.69	-28	-495	183	496	-UAR-N	-1	NRM
	39.39	93.13
2:24:45.341	JL1629--0057	-1550	1550	-47	-350	-293	-24	-93.55	-39.46	-86.63	-34	-95.13	-14	-495	181	495	-UAR-N	-1	NRM
	39.39	96.53
2:24:13.500	JL1629--0057	-1550	1550	-47	-350	-257	-25	-91.99	-39.19	-94.37	-24	-93.17	-26	-495	183	495	-UAR-N	-1	NRM
	39.25	94.97
2:24:30.515	JL1629--0057	-1550	1550	-47	-350	-292	-25	-90.49	-39.32	-93.15	-25	-91.90	-14	-497	181	497	-UAR-N	-1	NRM
	39.25	93.20
2:24:42.511	JL1629--0057	-1550	1550	-47	-350	-297	-25	-93.95	-39.25	-91.39	-25	-90.22	-9	-581	181	500	-UAR-N	-1	NRM
	39.23	91.51
2:24:51.525	JL1629--0057	-1550	1550	-47	-350	-293	-25	-87.42	-39.21	-79.75	-25	-93.65	-8	-521	180	503	-UAR-N	-1	NRM
	39.20	79.82
2:25:55.152	JL1629--0057	-1550	1550	-47	-350	-297	-25	-95.92	-39.23	-79.04	-25	-95.63	-8	-526	180	504	-UAR-N	-1	NRM
	39.23	73.12
2:25:15.491	JL1629--0057	1550	1550	-47	-350	-297	-25	-34.34	-39.95	-76.51	-25	-95.39	-22	-524	182	505	-UAR-N	-1	NRM
	39.09	76.45
2:25:30.335	JL1629--0057	1550	1550	-47	-350	-293	-25	-92.93	-39.07	-74.73	-27	-94.03	-17	-524	181	504	-UAR-N	-1	NRM
	39.21	74.75
2:25:42.646	JL1629--0057	1550	1550	-47	-350	-295	-28	-31.32	-39.95	-73.14	-23	-92.64	-20	-522	102	503	-UAR-N	-1	NRM
	39.96	73.09
2:25:51.703	JL1629--0057	1550	1550	-47	-350	-297	-25	-79.90	-39.33	-71.39	-29	-91.29	-5	-527	179	506	-UAR-N	-1	NRM
	39.25	71.39
2:26:35.502	JL1629--0057	1550	1550	-47	-350	-297	-25	-79.89	-39.92	-69.79	-29	-79.84	-14	-521	181	504	-UAR-N	-1	NRM
	39.95	69.70
2:26:13.711	JL1629--0057	1550	1550	-47	-350	-295	-23	-75.87	-39.92	-59.35	-29	-79.41	-20	-523	182	504	-UAR-N	-1	NRM
	39.97	69.04
2:26:33.695	JL1629--0057	1550	1550	-47	-350	-297	-23	-75.36	-39.70	-68.42	-33	-77.02	-23	-522	163	503	-UAR-N	-1	NRM
	38.75	56.37
2:26:42.352	JL1629--0057	1550	1550	-47	-350	-297	-23	-73.92	-39.94	-54.59	-31	-75.60	-13	-525	181	504	-UAR-N	-1	NRM
	39.75	54.67
2:26:54.322	JL1629--0057	1550	1550	-47	-350	-297	-23	-72.52	-38.91	-63.20	-31	-74.27	-5	-524	100	503	-UAR-N	-1	NRM
	38.75	62.99
2:27:05.903	JL1629--0057	1550	1550	-47	-350	-297	-23	-71.01	-39.59	-51.37	-32	-72.92	-16	-623	181	503	-UAR-N	-1	NRM
	39.57	51.31
2:27:15.703	JL1629--0057	1550	1550	-47	-350	-297	-23	-69.60	-33.50	59.79	-32	-71.47	-25	-495	162	499	-UAR-N	-1	NRM
	39.55	59.57
2:27:48.216	JL1629--0057	1550	1550	-47	-350	-297	-23	-63.21	-39.59	57.95	-33	-74.32	-16	-520	181	500	-UAR-N	-1	NRM
	38.15	56.32
2:27:55.223	JL1629--0057	1550	1550	-47	-350	-297	-23	-35	-65.41	-39.32	54.79	-34	-67.29	-24	-495	182	496	-UAR-N	-1	NRM
	38.35	54.58
2:28:07.323	JL1629--0057	1550	1550	-47	-350	-297	-23	-36	-63.99	-39.03	63.31	-35	-65.90	-13	-496	185	492	-UAR-N	-1	NRM
	39.15	53.09
2:28:19.283	JL1629--0057	1550	1550	-47	-350	-297	-23	-37	-62.66	-39.20	51.34	-36	-64.40	-28	-491	183	492	-UAR-N	-1	NRM
	39.10	51.43

Cited by

Japan Air Lines Flight 1628: The Alaska Mothership 1986

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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.