Planefence

• Last update: Apr 18, 2025 23:59:04 AKDT
• Maximum distance from 61.132°N, -149.921°E: 2.0 nm
• Only aircraft below 3,000 ft are reported
• Data extracted from 103,874 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		AB19D9	N814SS		HILCORP EQUIPMENT	2025-04-18 07:09:06 AKDT	2025-04-18 07:10:18 AKDT	1,345 ft AGL	1.45 nm
1		A72841	DAZ15		PRIORITY AIR CHARTER	2025-04-18 07:12:34 AKDT	2025-04-18 07:14:07 AKDT	1,220 ft AGL	0.98 nm
2		A256EC	SRY1401		ASAERO	2025-04-18 07:20:10 AKDT	2025-04-18 07:20:35 AKDT	1,970 ft AGL	0.96 nm
3		A64208	N502GV		GRANT AVIATION	2025-04-18 07:25:27 AKDT	2025-04-18 07:26:51 AKDT	1,170 ft AGL	0.69 nm
4		A72357	N5591B		NIESEN JODY	2025-04-18 07:37:03 AKDT	2025-04-18 07:38:13 AKDT	870 ft AGL	1.81 nm
5		A4D4CA	N410GV		AVION CAPITAL	2025-04-18 08:31:53 AKDT	2025-04-18 08:33:38 AKDT	1,170 ft AGL	0.91 nm
6		A90FED	SRY1101		ASAERO	2025-04-18 08:37:31 AKDT	2025-04-18 08:38:13 AKDT	1,670 ft AGL	0.54 nm
7		A1DC39	RYA219		RYAN AIR SERVICES	2025-04-18 08:45:12 AKDT	2025-04-18 08:46:39 AKDT	920 ft AGL	0.21 nm
8		A535FF	N435DC		GUARDIAN FLIGHT	2025-04-18 09:02:52 AKDT	2025-04-18 09:03:18 AKDT	1,870 ft AGL	0.77 nm
9		A280D0	N260US		TECNAM US	2025-04-18 09:04:53 AKDT	2025-04-18 09:06:29 AKDT	1,220 ft AGL	0.98 nm
10		A7F31F	N611GV		GRANT AVIATION	2025-04-18 09:07:14 AKDT	2025-04-18 09:08:57 AKDT	1,320 ft AGL	0.58 nm
11		7BC009	CAO8433	SHE-ANC-LAX	AIR CHINA CARGO	2025-04-18 09:12:20 AKDT	2025-04-18 09:12:56 AKDT	2,045 ft AGL	0.63 nm
12		A34D73	TNV142		TRANSNORTHERN	2025-04-18 09:17:15 AKDT	2025-04-18 09:18:29 AKDT	1,170 ft AGL	0.64 nm
13		A2CD58	TNV153		TRANSNORTHERN	2025-04-18 09:22:42 AKDT	2025-04-18 09:24:38 AKDT	1,070 ft AGL	0.15 nm
14		AA30E6	CFS8664	ANC-ENA	EMPIRE AIRLINES	2025-04-18 09:26:54 AKDT	2025-04-18 09:28:52 AKDT	1,045 ft AGL	0.77 nm
15		A64208	N502GV		GRANT AVIATION	2025-04-18 09:35:58 AKDT	2025-04-18 09:37:39 AKDT	1,270 ft AGL	0.67 nm
16		A256EC	SRY1210		ASAERO	2025-04-18 09:50:32 AKDT	2025-04-18 09:51:25 AKDT	1,495 ft AGL	0.0 nm
17		A0464A	AER65		ALASKA CENTRAL EXPRESS	2025-04-18 09:56:27 AKDT	2025-04-18 09:57:28 AKDT	1,695 ft AGL	0.4 nm
18		A9C1D7	CFS8676	ANC-HOM	EMPIRE AIRLINES	2025-04-18 09:58:39 AKDT	2025-04-18 10:00:29 AKDT	1,070 ft AGL	0.9 nm
19		A2A219	N269TD		TVPX AIRCRAFT SOLUTIONS	2025-04-18 10:03:25 AKDT	2025-04-18 10:05:10 AKDT	1,195 ft AGL	0.68 nm
20		AC8AA5	RYA907		RYAN AIR SERVICES	2025-04-18 10:06:02 AKDT	2025-04-18 10:06:46 AKDT	1,445 ft AGL	0.54 nm
21		AA0967	CFS8661	ANC-ENA	EMPIRE AIRLINES	2025-04-18 10:18:17 AKDT	2025-04-18 10:19:57 AKDT	1,120 ft AGL	1.13 nm
22		A6EF3C	N546LM		AERO AIR	2025-04-18 10:21:22 AKDT	2025-04-18 10:22:11 AKDT	1,170 ft AGL	0.83 nm
23		A2A219	N269TD		TVPX AIRCRAFT SOLUTIONS	2025-04-18 21:25:05 AKDT	2025-04-18 21:26:52 AKDT	570 ft AGL	0.23 nm
24		ABF499	N87GF		REACH AIR MEDICAL	2025-04-18 21:48:07 AKDT	2025-04-18 21:48:11 AKDT	970 ft AGL	2.0 nm
25		A7F31F	N611GV		GRANT AVIATION	2025-04-18 22:04:39 AKDT	2025-04-18 22:06:19 AKDT	695 ft AGL	0.32 nm
26		ABF499	N87GF		REACH AIR MEDICAL	2025-04-18 22:53:41 AKDT	2025-04-18 22:56:04 AKDT	595 ft AGL	0.28 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.