Asteroids with Satellites Database--Johnston's Archive
(9260)
Edwardolson
compiled by Wm. Robert Johnston
last updated
21 September 2014
--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:
main belt asteroid
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
2.289345475 AU
| |
orbital period P: |
3.463978636 yr
(= 1265.2181970 d)
| |
eccentricity e: |
0.230276951
| |
perihelion distance q: |
1.76216198 AU
| |
aphelion distance Q: |
2.816528971 AU
| |
inclination i: |
5.0976102°
| |
argument of perihelion ω: |
148.398741°
| |
ascending node Ω: |
214.605079°
| |
mean anomaly M: |
184.076410°
| |
perihelion passage TP: |
2016 Jan 31.28257
| |
Epoch: |
2014 May 23
| |
data arc: |
1953-2014
(1046 obs.)
| |
Earth MOID: |
0.761191 AU
| |
Jupiter Tisserand invariant TJ: |
3.559
|
orbital data, secondary:
|
binary dynamical type: | A [P07f] | |
semimajor axis as: |
7.2
km
[*E]
| |
separation/primary radius as/rp: | 3.6 [*E] | |
separation/Hill radius as/rH: | 0.013 [*E] | |
orbital period Ps: |
0.741
± 0.00012
d [J05a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
0.91
[P07f]
|
|
other data, system (combined):
|
absolute mag. H: |
14
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
4.12
± 0.36
km [M11b]
| |
geometric albedo: |
0.262
± 0.037
[M11b]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
550 km [*E]
|
other data, primary:
|
diameter dp: |
3.98
± 0.35
km [*D]
| |
rotation period RPp: |
3.0852
± 0.0001
h [J05a]
| |
amplitude in mag., rotational ΔM: |
0.11
[J05a]
| |
amplitude in mag., mutual events ΔM: | 0.115 ±0.035 [J05a] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1.07
± 0.15
km [*D]
| |
diameter ratio ds/dp: |
0.27
± 0.03
[J05a]
| |
component mag. difference ΔM: |
2.8
± 0.2
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(9260) Edwardolson
--discovery and notes:
Primary discovered
1953 Oct 08
from
Brooklyn, Indiana, USA
by
Indiana University.
Alternate designation(s):
1953 TA1,
1991 QH.
Permanent number assigned 1998 Oct 05.
Named 2004 Jul 13 for Edward C. Olson (1930-) [MPC52322].
Companion discovered
2005 Oct 06
by M. Jakubik, M. Husarik, J. Vilagi, S. Gajdos, A. Galad, P. Pravec, P. Kusnirak, W. Cooney, J. Gross, D. Terrell, D. Pray, and R. Stephens
using
lightcurve
observations from Skalnate Pleso Obs; Modra Observatory, Slovakia; Ondrejov Observatory, Czech Republic; Sonoita Research Observatory, Sonoita, Arizona, USA; Greene, Rhode Island, USA; Yucca Valley, California, USA.
Announced
2005 Nov 02 [J05a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Jakubik, M., Husarik, M., Vilagi, J., Gajdos, S., Galad, A., Pravec, P., Kusnirak, P., Cooney, W., Gross, J., Terrell, D., Pray, D., & Stephens, R. 2005, Central Bureau Electronic Telegrams (9260) Edwardolson
©
2005-2008, 2014
by Wm. Robert Johnston.
Last modified
21 September 2014.
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