2557 Putnam

Main-belt minor planet

Designation: (2557) Putnam
Class: Main-belt
Semi-major axis: 2.3497601 AU
Eccentricity: 0.1561314
Inclination: 6.0711°
Absolute magnitude (H): 12.9
Perihelion: 1.983 AU
Aphelion: 2.717 AU