| Name | |
|---|---|
| Name | Fréchet |
| Designation | 1998 PQ |
| Discovery | |
| Discoverer | P. G. Comba |
| Discovery date | August 15, 1998 |
| Orbital elements | |
| Epoch October 27, 2007 (JDCT 2454400.5) | |
| Eccentricity (e) | 0.1357806 |
| Semimajor axis (a) | 3.0780794 AU |
| Perihelion (q) | 2.6601359 AU |
| Aphelion (Q) | 3.4960229 AU |
| Orbital period (P) | 5.40 a |
| Inclination (i) | 1.16849° |
| Longitude of the ascending node (Ω) | 160.92998° |
| Argument of Perihelion (ω) | 80.96188° |
| Mean anomaly (M) | 9.37875° |
21537 Fréchet is a main belt asteroid with an orbital period of 1972.5051413 days (5.40 years).[1]
The asteroid was discovered on August 15, 1998.