(7511) Patcassen Main-belt Asteroid
Discovered on 2 March 1981 by S. J. Bus at Siding Spring.
Patrick Cassen (b. 1940) is a planetary scientist at NASA's Ames Research Center. His research focuses on star and planet formation, the physics of circumstellar disks, and the application of astrophysical models to the formation of the solar system.Naming citation (20060809/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Patcassen is today
Seen from above the solar system on 2026-10-14: Patcassen is 3.34 au from the Sun and 4.15 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7511 |
| Provisional designation | 1981 EX24 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.27 km (#7,342 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.111 |
| Absolute magnitude (H) | 13.97 |
| Orbital period | 5.72 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 2.66 – 3.73 au |
| Eccentricity | 0.167 |
| Inclination | 1.29° |
| Closest distance between its orbit and Earth's (MOID) | 1.67 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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