ADS-B glitchesCessna 172 Skyhawk
How did Cessna 172 Skyhawk N2459M end up with a 562.5-knot report?
Corrupted data could explain the spike: recorded speeds just 15 seconds before and after it were 76.4 and 75.2 knots.
- Replay time · UTC
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- Last saved report · UTC
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- Recorded path
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- Reported ground speed
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- Archived altitude
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The dot moves between saved positions. Readings are from the last saved report. Recorded path is approximate and excludes gaps. Distances use nautical miles (nmi); speed uses knots (nmi per hour).
An isolated 562.5-knot ground-speed report appeared between much slower readings during a flight on July 7, 2026. The aircraft database identifies N2459M as a Cessna 172 Skyhawk, and it was reported near Village of Clarkston, Michigan. The neighboring readings were 76.4 knots before the spike and 75.2 knots after it.
Each neighboring reading was just 15 seconds from the spike, making the sudden jump and return the strongest clue to a possible data error. Corrupted data or wrong type metadata could account for the value. It exceeded the site's 350-knot detection limit for the Skyhawk, but the report alone cannot establish actual performance or the error's cause.
Recorded data for N2459M
| Observed | to |
|---|---|
| Event type | Data quality |
| Recorded source | ADS-B, ICAO address |
| Post date | |
| Last revised |
| Aircraft type | CESSNA 172 Skyhawk |
|---|---|
| Type designator | C172 |
| Tail number (registration) | N2459M |
| Callsign | CXK640 |
| ICAO address | A24631 |
Measurements
Displayed measurements may be rounded.
| Ground speed | 562.5 kn |
|---|---|
| Archived altitude; reference not retained | 1,625 ft |
| Callsign | CXK640 |
|---|---|
| Transponder code | 1200 |
Record details
Public event ID: 6746d597-4607-45.
Record revision: 3.
Evidence version: b4b7347f6253a81e.