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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.

PRACKING-DATA
TIME	ACID/SX	ABC/SY	RBC	PRM	RALT	PACP	PDEG	PRAN	RX	RY	DDEJ	DRAN	XV	YV	EDG	SPD	ADS C	PAGE	O
2:45:13.644 1550 16 1929	169	32.22	5.46	-30.10	169	30.65	114	-472	166	485 1	NRM
	5.45=30.10 42 1925	169	33.74	6.13	-31.50	169	32.13	31	-491	175	493	UAR N 1	PAR
	6.18=31.50 12 1916	169	33.92	6.89	-31.52 82	-500	170	508 1	DEV
	6.81=33.23 1916	169	33.92	6.89	-31.52 82	-500	170	508 1	DEV
2:45:37.901	JL1629-01011550	1550	27	310	1914	163	35.66	7.03	-33.25	169	33.93	99	-500	169	510	UAR N 1	NRM
	6.95=33.23 25 1915	168	37.35	7.25	-34.92	169	35.67	89	-500	169	510	UAR N 1	PAR
2:45:49.664	JL1629-01011550 25 1915	168	37.35	7.25	-34.92	169	35.67	89	-500	169	510	UAR N 1	PAR
	7.25=31.02 -61	-522	196	527 1	DPV
2:45:49.555	0101-15051550 12	210	1933	169	37.30	6.25	-35.26 -61	-522	196	527 1	DPV
	6.54=36.71

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.