Documents / Document

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.

TIME	AGID/SK	ABC/SY	RBC	FRM	HALT	PACP	PDEG	PRAN	RX	RY	DDEG	DRAN	XV	YV	HDG	SPD	ADS C	SYS GIS
	37.32	29.81
2:30:55.747 1200 26 933	82	50.09	49.73	7.12	81	50.41	-23	-175	197	179 1 PAP
	49.73	7.12 -160	77	295	178 1 RTT
2:30:55.750	0055-1607	1200	1200	13	103	908	79	49.09	49.97	9.46 -160	77	295	178 1 RTT
	49.31	9.55 -138	56	292	149 1 PAP
2:30:57.133 1200 45 998	97	33.79	34.21	1.12	98	34.22	-138	56	292	149 1 PAP
	34.21	1.12 -136	-79	239	157 1 DEV
2:30:57.135	0005-1611	1200 12	14	1016	99	33.79	34.25	.20 -136	-79	239	157 1 DEV
	33.79	.39
2:30:57.135 0162	0162	47 960	94	33.00	33.10	3.20	94	33.35	-94	64	307	107 1 NPM
	33.12	3.00
SUBSYS = 1	TOTAL =	6	MODE	C	TOTAL =	3
2:31:03.019	JL1529 -0057	1550 45 521	54	45.71	37.29	29.14	52	47.02	-7	-503	180	502	UAR N	1 PAP
	37.29	29.14 -105	-453	192	474 1 DEV
2:31:03.019	0057-1604	1550 12	350	612	53	45.34	36.64	23.40 -105	-453	192	474 1 DEV
	35.62	26.71 79	49.94	-101	119	319	157
2:31:03.775 1200	1200	27	77	999	79	49.28	49.01	9.12	79	49.94	-101	119	319	157 1 PAP
	49.71	8.93 92	33.75	-130	-111	229	122
2:31:09.141 1200	1200	27	16	1230	90	33.42	33.37	-.20	92	33.75	-130	-111	229	122 1 PAP
	33.84	.03
2:31:09.143 0152	0162	47 955	93	32.75	32.82	3.29	94	33.10	-93	68	309	109 1 NPM
	32.94	3.23
SUBSYS = 1	TOTAL =	5	MODE	C	TOTAL =	3
2:31:20.137	JL1629 -0057	1550	1550	27	350	523	54	43.78	36.09	26.78	53	45.14	-139	-459	196	481	UAR N	1 PAP
	35.25	25.75
2:31:20.972 1200
	49.37	9.34
2:31:20.975	0055-1620	1200	1200	13	30	899	79	50.75	49.32	10.12
	49.67	10.43
2:31:21.325 0152	0162	47 949	93	32.50	32.54	3.50	93	32.94	-93	59	309	109 1 NPM
	32.56	3.48
SUBSYS = 1	TOTAL =	4	MODE	C	TOTAL =	2
2:31:32.133	JL1529 -0057	1550 25 339	55	42.53	35.79	25.21	54	44.05	-139	-459	196	481	UAR N	1 PAP
	35.79	25.21
2:31:32.135	0057-1607	1550 12	350	626	55	42.10	35.00	25.52
	34.53	24.07
2:31:32.974 1200	1200	27	50	992	77	51.42	50.07	10.34	77	51.21	88	138	32	165
	49.90	10.65
2:31:33.258 0162	0162	47 943	92	32.25	32.26	3.75	83	32.60	-82	72	311	109
	32.29	3.73
SUBSYS = 1	TOTAL =	4	MODE	C	TOTAL =	2
2:31:44.251	JL1629 -0057	1550	1550	27	349	627	55	40.44	33.89	24.57	54	42.12	-291	-375	217	478	UAR N	1 PAP
	34.15	24.37
2:31:44.993 1200
	50.20	11.12
2:31:44.995	0055-1614	1200 12	50	993	79	52.25	50.91	10.34
	51.10	10.81
2:31:45.392 0162	0162	47 936	92	32.09	32.10	4.24	92	32.49	-75	79	316	109
	32.26	4.01
SUBSYS = 1	TOTAL =	4	MODE	C	TOTAL =	2
2:31:55.275	JL1629 -0057	1550	1550	37	350	630	55	38.77	32.87	23.21	54	40.52	-320	-354	221	495	UAR N	1 NPM
	33.01	23.18
2:31:55.370 1200	1200	27	91	995	79	52.75	51.10	10.15	79	32.15	190	-11	93	181

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.