Minutes in KPOU Class D
1,365
77 observed days
Lowest in KPOU Class D (AGL)
0 ft
Height above ground
0.25-mile events
14
83 samples in ring
Lowest in 0.25-mile ring (AGL)
637 ft
Near monitoring location
Observed aircraft profile
- Known owner
- GRASSHOPPER FLYING CLUB INC
- Observed callsigns
- N4538E
- First observed
- Jan 3, 2025, 12:06 PM
- Last observed
- Jul 8, 2026, 07:30 PM
- All observed minutes
- 1,512
- All observed days
- 77
KPOU Class D activity
Counted from distinct receiver minute-presence coordinates inside the FAA-derived KPOU Class D polygon at 0–2,700 feet barometric altitude.
- Average altitude (AGL)
- 836 ft
- Median altitude (AGL)
- 737 ft
- First Class D observation
- Jan 3, 2025, 12:06 PM
- Last Class D observation
- Jul 8, 2026, 07:22 PM
Aircraft trail
N4538E · all to all
No trail loaded.
Lowest passes (¼ mi ring)
Every pass within 0.25 mi of the monitoring point, sorted by the lowest AGL reached during that pass.
| Date/time (ET) | Flight | Lowest AGL | Replay |
|---|---|---|---|
Daily KPOU Class D minutes
Daily sum of distinct receiver minutes inside KPOU Class D under 2,700 feet.
7
Jan 3
24
Jan 10
76
Jan 12
91
Jan 13
9
Jan 14
24
Jan 16
13
Jan 17
9
Jan 26
40
Jan 28
39
Jan 30
6
Jan 31
11
Feb 1
3
Feb 2
8
Feb 5
23
Feb 9
7
Feb 10
9
Feb 11
17
Feb 12
6
Feb 14
37
Feb 22
31
Feb 23
10
Feb 24
72
Feb 26
24
Feb 28
9
Mar 3
25
Mar 4
8
Mar 9
9
Mar 10
9
Mar 11
37
Mar 12
16
Mar 14
9
Mar 18
22
Mar 19
8
Mar 23
9
Mar 25
9
Mar 26
14
Mar 27
22
Mar 28
32
Mar 29
20
Mar 30
32
Jan 6
8
Mar 29
12
Mar 30
26
Mar 31
4
Apr 3
23
Apr 4
11
Apr 8
7
Apr 9
4
Apr 12
4
Apr 15
15
Apr 17
9
Apr 18
9
Apr 21
12
Apr 26
4
Apr 28
3
May 16
6
May 17
9
May 20
60
May 21
5
May 22
12
May 26
18
May 27
11
May 29
10
Jun 1
10
Jun 3
12
Jun 4
8
Jun 5
8
Jun 14
7
Jun 21
9
Jun 24
5
Jun 26
44
Jun 28
26
Jun 29
42
Jun 30
4
Jul 3
5
Jul 5
17
Jul 8
Daily distinct receiver minutes inside the Class D polygonPeak: 91 min
Daily minutes by noise band
Each minute is counted in the band for its loudest estimated measurement.
QuietModerateLoudVery loudUnmodeled
7
Jan 3
24
Jan 10
76
Jan 12
91
Jan 13
9
Jan 14
24
Jan 16
13
Jan 17
9
Jan 26
40
Jan 28
39
Jan 30
6
Jan 31
11
Feb 1
3
Feb 2
8
Feb 5
23
Feb 9
7
Feb 10
9
Feb 11
17
Feb 12
6
Feb 14
37
Feb 22
31
Feb 23
10
Feb 24
72
Feb 26
24
Feb 28
9
Mar 3
25
Mar 4
8
Mar 9
9
Mar 10
9
Mar 11
37
Mar 12
16
Mar 14
9
Mar 18
22
Mar 19
8
Mar 23
9
Mar 25
9
Mar 26
14
Mar 27
22
Mar 28
32
Mar 29
20
Mar 30
32
Jan 6
8
Mar 29
12
Mar 30
26
Mar 31
4
Apr 3
23
Apr 4
11
Apr 8
7
Apr 9
4
Apr 12
4
Apr 15
15
Apr 17
9
Apr 18
9
Apr 21
12
Apr 26
4
Apr 28
3
May 16
6
May 17
9
May 20
60
May 21
5
May 22
12
May 26
18
May 27
11
May 29
10
Jun 1
10
Jun 3
12
Jun 4
8
Jun 5
8
Jun 14
7
Jun 21
9
Jun 24
5
Jun 26
44
Jun 28
26
Jun 29
42
Jun 30
4
Jul 3
5
Jul 5
17
Jul 8
Noise bands use estimated dB from aircraft model and AGL for each receiver minute.Peak: 91 min