(9617) Grahamchapman
compiled by Wm. Robert Johnston
last updated 14 October 2006
Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):
orbital data, primary (osculating elements) [JPL]:
|
semimajor axis a: |
2.2242896 AU
| |
orbital period P: |
3.32 y (=1211.7 d)
| |
eccentricity e: |
0.1127922
| |
perihelion distance q: |
1.9734071 AU
| |
aphelion distance Q: |
2.4751721 AU
| |
inclination i: |
6.13858°
| |
argument of perihelion omega: |
280.98230°
| |
ascending node OMEGA: |
165.70033°
| |
mean anomaly M: |
48.94558°
| |
perihelion passage TP: |
2006-09-22.26
| |
Epoch: |
06 MAR 2006
| |
data arc: |
1951-2003 (329 obs.)
| orbital data, secondary:
|
semimajor axis a: |
(10 km?)
| |
semimajor axis/primary radius a/Rp: |
(4?)
| |
orbital period P: |
19.385 h [C414]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(5 km?)
| |
absolute magnitude H: |
14.1 [JPL]
| |
rotation period: |
?
| |
amplitude delta M: |
?
| |
color index B-V: |
?
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) [a]
| |
geometric albedo: |
?
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
(1.4 km?)
| |
diameter ratio Ds/Dp: |
0.27 [C414]
| |
component magnitude difference: |
?
| |
rotation period: |
?
|
|
--(9617) Grahamchapman--discovery and notes:
Primary discovered 17 March 1993 by the Uppsala-ESO Survey from European Southern Observatory. Alternate designation 1993 FA5.
Companion discovered by Ondrejov NEO Photometric Program, announced March 2006.
See more information and links at
Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2006 by Wm. Robert Johnston.
Last modified 14 October 2006.
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