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Radar computer printout, continuous data recording

FAA via National Archives / The Black Vault · 179 pages · text by 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 51 Original source ↗

“Ç.”60+ pages

  • p. 3 March 5, 1987 FAA, Alaskan Region Public Affairs Office 701 C Street, Box 14 Anchorage, Alaska…
  • p. 5 …1 2:11:45.735 2 MODE C TOTAL = 1 SUBSYS 2:11:47.619 193…
  • p. 6 …1200-3 Code RB 1 2 MODE C TOTAL = 2 VFR Aircraft, not under FAA control…
  • p. 7 …TOTAL = 2:16:10.306 4 MODE C TOTAL = 3 141.12 196 17 7 1550…
  • p. 8 …KB 1 SUBSYS = 1 TOTAL = 2 MODE C TOTAL = 1 2:20:46.574 52.00…
  • p. 9 …BT 1 SUBSYS = 1 TOTAL = 4 MODE C TOTAL = 2 2:23:34.944 60.37…
  • p. 10 …RB 1 SUBSYS = 1 TOTAL = 3 MODE C TOTAL = 3 67.75 151 13 7 RT…
  • p. 11 …BEACON ALT SUBSYS = 1 TOTAL = 6 MODE C TOTAL = 3 73.12 147 12 ? 1200-3…
  • p. 12 …BT 1 SUBSYS = 1 TOTAL = 5 MODE C TOTAL = 2 2:29:36.369 54.75…
  • p. 13 …3 81-3 RB 1 3 MODE C TOTAL = 2 SUBSYS = 1 TOTAL = 2:32:01…
  • p. 14 …3 98-3 RB 1 3 MODE C TOTAL = 1 SUBSYS = 1 TOTAL = 2:34:38…
  • p. 15 …BT 1 SUBSYS = 1 TOTAL = 4 MODE C TOTAL = 2 2:37:02.268 103.25…
  • p. 16 …TOTAL = 2:39:38.625 2 MODE C TOTAL = 48.75 898 78 7 1200-3…
  • p. 17 …MODE C TOTAL = 1 SUBSYS = 1 TOTAL = 2:44:51.393 1 MODE C TOTAL = 1…
  • p. 18 …TOTAL = 2:46:51.820 1 MODE C TOTAL = 52.87 935 82 7 1200-3…
  • p. 22 …RB | 1 | | SUBSYS = 1 TOTAL = 1 MODE C TOTAL = 1 | | | | | | | | | | 2:11:45.735 | 193.12…
  • p. 23 STIME RANGE ACP DEG Q BEACON ALT QUAL SYS SUBSYS = 1 TOTAL = 1 MODE C TOTAL…
  • p. 26 …PAGE | PDEG | PRAN | RX | RY | DDEG | DRAN | XV | YV | UDG | SPD | ADS_C | AGE | SYS_CLS | | :--- | :---
  • p. 27 …ADS C | SYS GLE | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 14.27 | 174.49 | | | | | | | | | | | | | | | | SUBSYS = 1 | TOTAL = 1 MODE C TOTAL = 1…
  • p. 28 …DDEG DBAN XV YV HDG SPD ADS C SYS CLS 2:17:05.513 JL1623 -0057…
  • p. 29 …HDG SPD ADS C SYS DIS SUBSYS = 1 TOTAL = 1 MODE C TOTAL = 1 2:20…
  • p. 31 …RB | 1 | | SUBSYS = 1 TOTAL = 1 MODE C TOTAL = 1 | 2:21:11.041 | 117.02…
  • p. 32 …RB | 1 | | SUBSYS = 1 TOTAL = 3 MODE C TOTAL = 2 | | | | | | | | | | 2:25:13.579 | 49.37…
  • p. 33 …RB | 1 | | | SUBSYS = 1 TOTAL = | 3 MODE C TOTAL = | | | | | | | | | | | | 2:29:43.174 | 50.00 | 449…
  • p. 34 …BT | 1 | | | SUBSYS = 1 TOTAL = 2 MODE C TOTAL = 1 | | | | | | | | | | | 2:20:34.493 | 51.37…
  • p. 35 …BT | 1 | | SUBSYS = 1 TOTAL = 3 MODE C TOTAL = 1 | | | | | | | | | | 2:24:10.961 | 62.25…
  • p. 36 …BT | 1 | | | SUBSYS = 1 TOTAL = 3 MODE C TOTAL = 1 | 69.25 | 390 | 34 | 0 | 1552…
  • p. 37 …QUA | SYS | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | SUBSYS = 1 TOTAL = 3 MODE C TOTAL = 1 | 51.00 | 900 | 79 | 0 | 1200…
  • p. 40 …DDEG DPAN XV XV HDG SPD ADS C SYS DIS 2:20:05.300 1200 1200…
  • p. 41 …3.53 SUBSYS = 1 TOTAL = 4 MODE C TOTAL = 2 2:21:29.914 1200 04…
  • p. 42 …ADS C PAGE 7 34.59 4.04 SUBSYS = 1 TOTAL = 3 MODE C TOTAL = 1…
  • p. 43 …SPD ADS C PAGE 4 SYS CLS SUBSYS = 1 TOTAL = 4 MODE C TOTAL = 2 2…
  • p. 44 …1 NPM SUBSYS = 1 TOTAL = 7 MODE C TOTAL = 3 2:25:19.109 1200 1200…
  • p. 45 …DDEJ DRAN XV YV HDG SPD ADS.C PAGE SYS CLS 2:25:53.590 0024…
  • p. 46 …DDEG DRAN XV YV EDC SPD ADS.C PAGE SYSCLS PRAN RI 2:26:55.695…
  • p. 47 …7.64 SUBSYS = 1 TOTAL = 10 MODE C TOTAL = 4 2:45:37.904 JL1629 -0101…
  • p. 48 …115 1 NPM SUBSYS=1 TOTAL= 7MODE C TOTAL= 4 2:45:22.138 1200 1200…
  • p. 49 …2:46:50.720 TOTAL = 5 MODE C TOTAL = 3 2:46:51.295 -7.92…
  • p. 50 SUBSYS = 1 TOTAL= 5 MODE C TOTAL= 3 2:47:39.757 1200 1200 47 2183…
  • p. 51 …15.95 -12.07 TOTAL = 5 MODE C TOTAL = 3 2:48:25.690 0166 0166…
  • p. 52 11.37 -11.50 SUBSYS=1 TOTAL= 5MODE C TOTAL= 3 2:49:14.957 0166…
  • p. 53 …DDEG DRAN XV YV PEG SPD ADS C 2:49:59.233 0000 0000 22 947…
  • p. 54 C.D.R. EDITOR LISTING JL1523 AFTER 350 TURN DATA SELECTED RB BT RT TD FILTERS…
  • p. 56 …OUA | SYS | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | SUBSYS = 1 | TOTAL = 2 | MODE C | TOTAL = 2 | | | | | | RB | 1 | | 2:52:19.422…
  • p. 57 …RB | 1 | | SUBSYS = 1 TOTAL = 1 MODE C TOTAL = 2:57:31.650 | 132.87 | 1932…
  • p. 58 …3 RB SUBSYS = 1 TOTAL = 2 MODE C TOTAL = 2 3:00:19.393 117.12…
  • p. 60 SUBSYS = 1 TOTAL = 3 MODE C TOTAL = 3 2:49:19.392 105.25 1914 159…
  • p. 61 …BT | 1 | | | | SUBSYS = 1 TOTAL = | 2 MODE C TOTAL = | 2 | | | | | | | | | | | | 2:52:05.954 | 125.37…
  • p. 62 …QUA | SYS | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | SUBSYS = 1 TOTAL = 2 MODE C TOTAL = 2 | 115.12 | 1933 | 169 | 0 | 1550…
  • p. 63 …TOTAL = 2:59:32.069 | 1 MODE C TOTAL = 142.52 | 1939 | 170 | 0 | 4371-3…
  • p. 69 HADAN ONLY TARGET REPORTS STINE RANGE AGE DES Q BEAGON ALT PAGE C 2:53:07…
  • p. 78 …DDEG DRAN EV YV UDC SPE AES C SYS GIS 2:45:01.324 TOTEM71-0144…
  • p. 81 …DDEG DRAN XY IV HDG SPD ADS C FAUF STS GIS 2:42:01.243 25…
  • p. 84 …DDEG DRAN LV YV EDG SPD ADS.C SYSCIS 2:51:02.304 0000 24 1925…
  • p. 85 …DDE2 DRAN XV IV BDG SPD ADS C SYS CIS 2:52:02.363 0000 24…
  • p. 86 …DDEG DRAN XV YV HPG SPD ADS C 2:53:02.277 TOTEM71-2144 4371 47…
  • p. 87 …18/96 XV YV HDG SPD ADS C PAGE 14 SYS CLS PRAN RX RY DDEG…
  • p. 88 …111.70 SUBSYS = 1 TOTAL = 5 MODE C TOTAL = 2 2:55:25.341 TOTEM71-0144…
  • p. 89 …142.71 SUBSYS = 1 TOTAL = 7 MODE C TOTAL = 3 2:56:39.504 TOTEM71-0144…
  • p. 90 …DDEG DRAN XV XV HDG SPD ADS C SYS GLS 2:57:03.319 0222 25…
TIME	ACID/SX	ABC/SY	RBC	FRM	BALT	PACE	PDEG	PRAN	RX	RY	DDEG	DRAN	XV	YY	EDG	SRD	ADS	SYS	DIS
2:48:22.926 0000 14 958	84	20.10	20.00	2.29	94	20.17	1	-22	175	22	1	NRM
2:48:22.929	20.00	2.09
 1547	1547	37	17	934	92	23.53	23.45	2.79	83	23.72	-55	113	333	126	1	NRM
2:48:23.557	23.50	2.94
 1271	1271	47	710	1237	109	22.71	21.51	-7.35	109	22.79	-6	5	310	2	1	NRM
2:48:24.434	21.53	-7.31
 0152	0162	27 1457	129	19.71	15.75	-11.90	122	19.95	-102	-10	259	101	1	PAP
SUBSYS = 1	15.95	-12.07
TOTAL =	5 MODE C TOTAL = 3
2:48:25.690 0166	0166	47	74	2265	199	20.72	-7.07	-19.99	199	21.16	162	74	65	179	1	NRM
	-7.31	-19.92
2:48:25.594 1200	1277	47 2192	191	29.46	-5.94	-29.25	191	29.97	72	121	35	125	1	NRM
	-6.36	-29.20
2:48:35.005 1547	1547	47	16	924	81	23.26	23.15	3.14	92	23.44	-69	107	325	129	1	NRM
	23.21	3.17
2:48:35.756 1271	1271	47	712	1237	109	22.70	21.53	-7.32	109	22.97	-6	4	395	7	1	NRM
	21.51	-7.31
2:48:36.527 0162	0162	37 1460	129	19.29	15.45	-11.97	127	19.69	-107	6	273	107	1	NRM
	15.49	-12.00
SUBSYS = 1	TOTAL =	5 MODE C TOTAL = 3
2:48:39.770 0166	0166	47	74	2255	199	20.20	-6.93	-12.42	199	20.65	153	90	50	179	1	NRM
	-5.82	-19.49
2:49:39.773 1200
	-5.92	-27.95
2:49:39.775	0073-1511	1200
	-4.96	-27.67
2:49:47.231 1547	1547	47	15	915	90	22.97	22.85	3.42	91	23.19	-90	90	320	128	1	NRM
	22.92	3.43
2:49:47.940 1271	1271	47	710	1237	109	22.22	21.64	-7.40	109	22.92	-2	1	290	2	1	NRM
	21.51	-7.31
2:49:43.511 0152	0152	47 1453	128	19.99	15.04	-11.73	128	19.21	-109	22	291	112	1	NRM
	15.10	-11.97
SUBSYS = 1	TOTAL =	5 MODEC TOTAL = 3
2:49:50.949 0166	0166	47	74	2245	197	19.74	-6.48	-19.17	198	20.28	145	94	57	175	1	NRM
	-5.37	-19.15
2:49:50.951 1200	1200	27 2119	199	27.76	-4.94	-27.69	199	29.17	170	79	65	197	1	NRM
	-4.99	-27.58
2:49:59.115 1547	1547	47	15	907	79	22.65	22.57	3.62	80	22.93	-90	98	314	125	1	NRM
	22.59	3.75
2:49:59.999 1271	1271	47	710	1235	109	22.72	21.53	-7.29	109	22.79	-1	3	335	3	1	NRM
	21.51	-7.29
2:49:00.600 0162	0162	47 1457	129	19.49	14.67	-11.57	129	19.84	-119	32	206	115	1	NRM
	11.73	-11.73
SUBSYS = 1	TOTAL =	5 MODEC TOTAL = 3
2:49:02.951 0166	0166	47	74	2236	196	19.25	-6.07	-19.79	197	19.77	132	123	53	172	1	NRM
	-5.93	-19.79
2:49:02.954 1200	1200	37 2138	197	27.39	-4.40	-27.39	182	27.92	164	92	63	192	1	NRM
	-4.35	-27.40
2:49:11.373 1547	1547	47	14	902	79	22.25	22.17	3.73	92	22.54	-124	52	307	125	1	NRM
	22.20	3.90
2:49:11.373 1271	1271	47	710	1236	109	22.71	21.53	-7.32	128	22.92	-1	2	329	2	1	NRM
	21.51	-7.29
2:49:12.721 0162	0162	47 1471	129	19.12	14.40	-11.59	129	19.59	-129	34	287	114	1	NRM

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