Near-Earth object / ID: 2037655
37655 Illapa is a near-Earth object of the APO orbit class — Near-Earth asteroid orbits which cross the Earth’s orbit similar to that of 1862 Apollo. Radar and photometric estimates put it between 715m - 1.6km across. It has been followed since 1994-08-01 across 658 recorded observations. Its next approach to Earth is 2027-Mar-22 09:34, passing at 129.004 LD. JPL classifies it as a potentially hazardous asteroid, a label driven by its size and how close its orbit comes to ours — not by a predicted impact.
Data source: NASA NeoWs API
Visualization: mesh render
Hazard analysis
PHA status
Potentially hazardous
Min. orbit intersection
0.025 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
20.68 km/s
Miss distance (lunar)
129.004 LD
Miss distance (km)
49,610,937 km
Physical characteristics
Perihelion
0.366 AU
Aphelion
2.590 AU
Orbital period
656.2 days
Inclination
18.034°
Eccentricity
0.752
Semi-major axis
1.478 AU
Est. diameter (min–max)
715m - 1.6km
Log scale · 1m – 100km
Absolute magnitude
17.9 H
Orbit class
APO
Observations used
658