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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 41 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…
INVOCATION DATA	ACID/SX	ABC/SY	HBC	FRM	BALT	PACP	PDE3	PRAN	RX	RY	DDEQ	DRAN	XV	YV	PDG	SPD	ADS G	PAGE	2 SYS	CIS
2:21:20.152	40.70	109.70 1	NPM
 0250	0250	47 949	93	33.53	33.17	3.55	93	33.43	49	59	39	77
	33.14	3.53
SUBSYS = 1	TOTAL = 4	MODE C TOTAL = 2
2:21:29.914 1200 04 176	15	51.96	13.90	49.36	15	51.93	0	0	45	0
	13.92	49.95
2:21:29.915 1200	1200	47	75	173	15	54.42	14.32	51.79	15	53.70	12	132	2.183
	14.31	51.87
2:21:29.915	JL1629 -0057	1550	1550	42	350	237	20	113.95	40.73	109.46	20	115.82	-20	-499	192	499	UAR N
	40.57	109.03
2:21:32.150 0250	0250	47 944	92	33.89	33.25	3.93	93	33.62	44	63	35	79
	33.29	3.90
SUBSYS = 1	TOTAL = 4	MODE C TOTAL = 2
2:21:41.739 1200	1200	47	75	172	15	55.00	14.43	52.42	15	54.32	19	190	5	181
	14.37	52.45
2:21:41.741	JL1629 -0057	1550	1550	47	350	240	21	112.29	49.64	106.35	20	114.19	-15	-499	191	499	UAR N
	40.62	106.37
2:21:41.004 0250	0250	47 941	92	33.90	33.49	4.37	93	33.95	49	59	39	79
	33.45	4.09
SUBSYS = 1	TOTAL = 3	MODE C TOTAL = 2
2:21:53.799 1200	1200	47 172	15	55.56	14.45	52.92	15	51.81	20	176	5	177
	14.45	53.03
2:21:53.900	JL1629 -0057	1550	1550	47	350	243	21	110.71	42.43	124.92	21	112.67	-27	-495	183	427	UAR N
	40.50	104.73
2:21:56.039 0260	0260	47 940	92	34.14	33.62	4.23	93	33.99	56	47	50	73
	33.55	4.21
SUBSYS = 1	TOTAL = 3	MODE C TOTAL = 1
2:22:05.945 1200	1200	47	75	172	15	56.14	14.52	53.51	15	55.42	29	172	9	175
	14.57	53.59
2:22:05.947	JL1629 -0057	1550	1550	47	350	245	21	109.11	40.17	103.20	21	111.05	-47	-492	185	496	UAR N
	40.29	103.10
2:22:09.101 0260	0260	47 942	82	34.42	33.97	3.96	83	34.23	68	22	71	71
	33.92	4.22
SUBSYS = 1	TOTAL = 3	MODE C TOTAL = 2
2:22:17.944 1200	1200	47 171	15	56.71	14.71	54.14	15	55.01	32	171	12	174
	14.70	54.17
2:22:17.945	JL1629 -0057	1550	1550	47	350	249	21	107.55	40.35	101.37	21	109.40	-29	-495	183	497	UAR N
	40.25	171.43
2:22:22.177 0250	0260	47 943	83	34.67	34.15	3.92	83	34.49	74	-10	98	75
	34.19	4.07
SUBSYS = 1	TOTAL = 3	MODE C TOTAL = 1
2:22:29.992 1200	1200	47 171	15	57.30	14.79	54.79	15	56.67	30	172	12	175
	14.79	54.75
2:22:29.994	JL1629 -0057	1550	1550	47	350	252	22	105.96	40.06	99.75	21	107.76	-35	-495	184	499	UAR N
	40.10	99.73
2:22:32.225 0250	0260	47 949	83	34.95	34.25	4.70	93	34.60	69	-14	101	71
	34.40	4.01
SUBSYS = 1	TOTAL = 3	MODE C TOTAL = 1
2:22:41.955 1200	1200	47 170	14	57.89	14.97	55.40	14	52.29	27	174	9	177
	14.37	55.34
2:22:41.957	JL1629 -0057	1550	1550	47	350	255	22	104.39	39.95	99.17	22	105.25	-39	-495	184	428	UAR N
	39.96	98.12
2:22:41.130 0230	0260	47 949	83	35.03	34.35	4.17	93	34.73	63	-1	90	53

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