9478 Caldeyro

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9478 Caldeyro
Name Caldeyro
Designation 2148 P-L
Discoverers Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld
Discovery date September 24, 1960
Orbital elements
Epoch October 27, 2007 (JDCT 2454400.5)
Eccentricity (e) 0.1431419
Semimajor axis (a) 3.0895471 AU
Perihelion (q) 2.647588 AU
Aphelion (Q) 3.5321704 AU
Orbital period (P) 5.152 a
Inclination (i) 4.69536°
Longitude of the ascending node (Ω) 4.28579°
Argument of Perihelion (ω) 278.07271°
Mean anomaly (M) 266.21537°

9478 Caldeyro is a main belt asteroid with a perihelion of 2.647588 AU. It has an eccentricity of 0.1431419 and an orbital period of 1983.83 days (5.43 years).[1] It is named after pioneering perinatologist Roberto Caldeyro-Barcia.[1]

Caldeyro has an average orbital speed of 16.94423601 km/s and an inclination of 4.69503°.

This asteroid was discovered on September 24, 1960 by Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld.


  1. ^ a b "JPL Small-Body Database Browser". NASA. Retrieved 2008-01-05.