Planefence

• Last update: Apr 15, 2025 23:59:42 AKDT
• Maximum distance from 61.132°N, -149.921°E: 2.0 nm
• Only aircraft below 3,000 ft are reported
• Data extracted from 246,754 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	Airline or Owner	Time First Seen	Time Last Seen	Min. Altitude	Min. Distance
0		A2A219	N269TD	TVPX AIRCRAFT SOLUTIONS	2025-04-15 05:15:05 AKDT	2025-04-15 05:16:34 AKDT	870 ft AGL	0.28 nm
1		A7F31F	N611GV	GRANT AVIATION	2025-04-15 06:14:42 AKDT	2025-04-15 06:16:22 AKDT	570 ft AGL	0.31 nm
2		A280D0	N260US	TECNAM US	2025-04-15 06:20:48 AKDT	2025-04-15 06:22:28 AKDT	245 ft AGL	0.53 nm
3		A64208	N502GV	GRANT AVIATION	2025-04-15 06:42:21 AKDT	2025-04-15 06:43:59 AKDT	745 ft AGL	0.43 nm
4		A7F31F	N611GV	GRANT AVIATION	2025-04-15 06:55:36 AKDT	2025-04-15 06:57:15 AKDT	820 ft AGL	0.76 nm
5		A2A219	N269TD	TVPX AIRCRAFT SOLUTIONS	2025-04-15 07:14:11 AKDT	2025-04-15 07:15:57 AKDT	845 ft AGL	0.2 nm
6		A4CA54	N40796	GRANT AVIATION	2025-04-15 07:47:47 AKDT	2025-04-15 07:49:33 AKDT	520 ft AGL	0.55 nm
7		A7F31F	N611GV	GRANT AVIATION	2025-04-15 08:18:06 AKDT	2025-04-15 08:19:53 AKDT	495 ft AGL	0.34 nm
8		A240AE	N244US	KENAI AVIATION OPERATIONS	2025-04-15 08:19:28 AKDT	2025-04-15 08:21:25 AKDT	470 ft AGL	0.38 nm
9		A1DC39	RYA219	RYAN AIR SERVICES	2025-04-15 11:35:34 AKDT	2025-04-15 11:37:21 AKDT	370 ft AGL	0.42 nm
10		A6C043	N534L	US DEPARTMENT OF THE INTERIOR	2025-04-15 11:58:33 AKDT	2025-04-15 12:01:10 AKDT	920 ft AGL	0.24 nm
11		A2D10C	N2805K	NORTHSTAR E AMP	2025-04-15 16:55:35 AKDT	2025-04-15 16:56:48 AKDT	1,520 ft AGL	1.07 nm
12		A2A219	N269TD	TVPX AIRCRAFT SOLUTIONS	2025-04-15 17:21:00 AKDT	2025-04-15 17:22:50 AKDT	570 ft AGL	0.18 nm
13		A4CA54	N40796	GRANT AVIATION	2025-04-15 17:33:58 AKDT	2025-04-15 17:35:51 AKDT	520 ft AGL	0.2 nm
14		A4D4CA	N410GV	AVION CAPITAL	2025-04-15 17:46:54 AKDT	2025-04-15 17:48:29 AKDT	620 ft AGL	0.33 nm
15		A4CF16	N409LM	AIR METHODS	2025-04-15 17:46:56 AKDT	2025-04-15 17:48:56 AKDT	395 ft AGL	1.18 nm
16		ABF499	N87GF	REACH AIR MEDICAL	2025-04-15 18:28:13 AKDT	2025-04-15 18:28:55 AKDT	795 ft AGL	1.86 nm
17		A4D4CA	N410GV	AVION CAPITAL	2025-04-15 19:13:57 AKDT	2025-04-15 19:15:28 AKDT	545 ft AGL	0.4 nm
18		A2A219	N269TD	TVPX AIRCRAFT SOLUTIONS	2025-04-15 19:16:19 AKDT	2025-04-15 19:18:11 AKDT	445 ft AGL	0.13 nm
19		A4CF16	N409LM	AIR METHODS	2025-04-15 20:09:10 AKDT	2025-04-15 20:11:11 AKDT	545 ft AGL	0.53 nm
20		A4CF16	N409LM	AIR METHODS	2025-04-15 20:57:17 AKDT	2025-04-15 20:59:23 AKDT	445 ft AGL	0.66 nm
21		A240AE	N244US	KENAI AVIATION OPERATIONS	2025-04-15 21:16:21 AKDT	2025-04-15 21:18:09 AKDT	545 ft AGL	0.12 nm
22		A2A219	N269TD	TVPX AIRCRAFT SOLUTIONS	2025-04-15 21:22:23 AKDT	2025-04-15 21:24:03 AKDT	445 ft AGL	0.02 nm
23		ABF499	N87GF	REACH AIR MEDICAL	2025-04-15 22:30:54 AKDT	2025-04-15 22:32:41 AKDT	395 ft AGL	0.6 nm
24		ABF499	N87GF	REACH AIR MEDICAL	2025-04-15 23:49:13 AKDT	2025-04-15 23:50:52 AKDT	595 ft AGL	1.7 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

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