Planefence

• Last update: May 18, 2025 23:58:59 AKDT
• Maximum distance from 61.132°N, -149.921°E: 2.0 nm
• Only aircraft below 3,000 ft are reported
• Data extracted from 198,525 ADS-B messages received since midnight today
• Please note that the reported station coordinates and the center of the circle on the heatmap are rounded for privacy protection. They do not reflect the exact location of the station
• A RSS feed of the aircraft detected with Planefence is available at planefence.rss
• Additionally, click here to visit Plane Alert: a watchlist of aircraft in general range of the station

• Click on the Transponder ID to see the full flight information/history (from globe.adsbexchange.com)
• Click on the Flight Number to see the full flight information/history (from FlightAware)
• Click on the Owner Information to see the FAA record for this plane (private, US registered planes only)
• Minimum altitude is the altitude above local ground level, which is 30 ft MSL.
• See a list of aircraft matching the station's Alert List here
• Press the header of any of the columns to sort by that column

No.	Aircraft Image	Transponder ID	Flight	Flight Route	Airline or Owner	Time First Seen	Time Last Seen	Min. Altitude	Min. Distance
0		ABF499	N87GF		REACH AIR MEDICAL	2025-05-18 00:12:55 AKDT	2025-05-18 00:14:04 AKDT	1,070 ft AGL	1.84 nm
1		A4CF16	N409LM		AIR METHODS	2025-05-18 00:21:32 AKDT	2025-05-18 00:23:19 AKDT	1,170 ft AGL	0.76 nm
2		ABF499	N87GF		REACH AIR MEDICAL	2025-05-18 02:32:15 AKDT	2025-05-18 02:34:09 AKDT	1,245 ft AGL	0.56 nm
3		A38773	N3263Z		CALDWELL JACOB	2025-05-18 03:11:22 AKDT	2025-05-18 03:12:34 AKDT	1,770 ft AGL	1.77 nm
4		ABF499	N87GF		REACH AIR MEDICAL	2025-05-18 03:19:22 AKDT	2025-05-18 03:20:51 AKDT	1,895 ft AGL	1.3 nm
5		A38773	N3263Z		CALDWELL JACOB	2025-05-18 03:23:34 AKDT	2025-05-18 03:23:39 AKDT	945 ft AGL	1.99 nm
6		A38773	N3263Z		CALDWELL JACOB	2025-05-18 03:31:07 AKDT	2025-05-18 03:40:41 AKDT	970 ft AGL	1.77 nm
7		A38773	N3263Z		CALDWELL JACOB	2025-05-18 03:46:13 AKDT	2025-05-18 04:00:54 AKDT	745 ft AGL	1.02 nm
8		A280D0	N260US		TECNAM US	2025-05-18 05:24:10 AKDT	2025-05-18 05:26:03 AKDT	1,070 ft AGL	0.68 nm
9		A511CD	N4259H		LAMBE STEVEN	2025-05-18 08:34:11 AKDT	2025-05-18 08:37:11 AKDT	820 ft AGL	0.72 nm
10		A2DF61	N2841Q		WIGHT JOHN	2025-05-18 08:34:27 AKDT	2025-05-18 08:35:56 AKDT	170 ft AGL	0.2 nm
11		A2DF61	N2841Q		WIGHT JOHN	2025-05-18 09:48:22 AKDT	2025-05-18 09:52:05 AKDT	170 ft AGL	0.13 nm
12		A5B278	N4661Z		RUSTAIR	2025-05-18 10:01:10 AKDT	2025-05-18 10:03:35 AKDT	970 ft AGL	0.0 nm
13		AC89FF	SVX46		SECURITY AVIATION	2025-05-18 10:16:08 AKDT	2025-05-18 10:18:21 AKDT	670 ft AGL	0.63 nm
14		A008D4	N101EE		ALASKAN AERIAL PHOTOGRAPHY	2025-05-18 11:45:27 AKDT	2025-05-18 11:45:49 AKDT	1,120 ft AGL	1.96 nm
15		A54FEE	SVX44		SECURITY AVIATION	2025-05-18 12:59:24 AKDT	2025-05-18 13:01:34 AKDT	670 ft AGL	0.8 nm
16		A17DA5	N1954C		BOWLER ROBERT	2025-05-18 14:39:21 AKDT	2025-05-18 14:41:32 AKDT	1,120 ft AGL	1.25 nm
17		ABF499	N87GF		REACH AIR MEDICAL	2025-05-18 14:47:05 AKDT	2025-05-18 14:47:22 AKDT	1,195 ft AGL	1.99 nm
18		A2AD1D	N2714F		DDH	2025-05-18 15:34:38 AKDT	2025-05-18 15:37:07 AKDT	795 ft AGL	0.81 nm
19		A54FEE	SVX44		SECURITY AVIATION	2025-05-18 15:55:02 AKDT	2025-05-18 15:56:43 AKDT	670 ft AGL	1.06 nm
20		AB19D9	N814SS		HILCORP EQUIPMENT	2025-05-18 16:31:17 AKDT	2025-05-18 16:33:06 AKDT	820 ft AGL	0.34 nm
21		A82C98	ASA7010	ANC-BET-ANC	ALASKA AIRLINES	2025-05-18 17:43:34 AKDT	2025-05-18 17:45:13 AKDT	570 ft AGL	0.08 nm
22		A280D0	N260US		TECNAM US	2025-05-18 19:39:18 AKDT	2025-05-18 19:40:44 AKDT	1,270 ft AGL	1.17 nm
23		A55893	N4433R		WTF PARTNERSHIP	2025-05-18 20:24:20 AKDT	2025-05-18 20:27:01 AKDT	95 ft AGL	0.19 nm
24		A64208	N502GV		GRANT AVIATION	2025-05-18 21:19:49 AKDT	2025-05-18 21:21:35 AKDT	895 ft AGL	0.22 nm
25		A2A219	N269TD		TVPX AIRCRAFT SOLUTIONS	2025-05-18 22:08:29 AKDT	2025-05-18 22:09:53 AKDT	970 ft AGL	0.81 nm
26		A280D0	N260US		TECNAM US	2025-05-18 22:11:51 AKDT	2025-05-18 22:13:21 AKDT	820 ft AGL	0.28 nm
27		AA6F3D	N7711D		CALDWELL JOEL	2025-05-18 23:06:17 AKDT	2025-05-18 23:08:50 AKDT	945 ft AGL	0.0 nm

• This data is for informational purposes only and is of indicative value only. It was collected using a non-calibrated device under uncontrolled circumstances.
• The data unit is "dBFS" (Decibels-Full Scale). 0 dBFS is the loudest sound the device can capture. Lower values, like -99 dBFS, mean very low noise. Higher values, like -10 dBFS, are very loud.
• The system measures the RMS of the sound level for contiguous periods of 5 seconds.
• 'Loudness' is the difference (in dB) between the Peak RMS Sound and the 1 hour average. It provides an indication of how much louder than normal it was when the aircraft flew over.
• Loudness values of greater than 16 dB are in red. Values greater than 9 dB are in yellow.
• 'Peak RMS Sound' is the highest measured 5-seconds RMS value during the time the aircraft was in the coverage area.
• The subsequent values are 1, 5, 10, and 60 minutes averages of these 5 second RMS measurements for the period leading up to the moment the aircraft left the coverage area.
• One last, but important note: The reported sound levels are general outdoor ambient noise in a suburban environment. The system doesn't just capture airplane noise, but also trucks on a nearby highway, lawnmowers, children playing, people working on their projects, air conditioner noise, etc.

• This heatmap reflects passing frequency and does not indicate perceived noise levels
• The heatmap is limited to the coverage area of Planefence, for any aircraft listed in the table above

Today: html - csv | 17-May-2025: html - csv | 16-May-2025: html - csv | 15-May-2025: html - csv | 14-May-2025: html - csv | 13-May-2025: html - csv | 12-May-2025: html - csv | 11-May-2025: html - csv | 10-May-2025: html - csv | 09-May-2025: html - csv | 08-May-2025: html - csv | 07-May-2025: html - csv | 06-May-2025: html - csv | 05-May-2025: html - csv | 04-May-2025: html - csv

Additional dates may be available by browsing to planefence-yymmdd.html in this directory.