Asteroids with Satellites Database--Johnston's Archive
(9069)
Hovland
compiled by Wm. Robert Johnston
last updated
29 May 2019
--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, Hungaria
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
1.913197745 AU
| |
orbital period P: |
2.646354328 yr
(= 966.5809183 d)
| |
eccentricity e: |
0.118204674
| |
perihelion distance q: |
1.687048829 AU
| |
aphelion distance Q: |
2.139346661 AU
| |
inclination i: |
19.5717226°
| |
argument of perihelion ω: |
171.0414296°
| |
ascending node Ω: |
247.938722°
| |
mean anomaly M: |
200.2385773°
| |
perihelion passage TP: |
2015 Jul 25.95095
| |
Epoch: |
2014 May 23
| |
data arc: |
1991-2013
(656 obs.)
| |
Earth MOID: |
0.700873 AU
| |
Jupiter Tisserand invariant TJ: |
3.854
|
orbital data, secondary:
|
binary dynamical type: | A [M09a] | |
semimajor axis as: |
7.2
km
[*E]
| |
separation/primary radius as/rp: | 5.2 [*E] | |
separation/Hill radius as/rH: | 0.020 [*E] | |
orbital period Ps: |
1.264
± 0.0004
d [W05b]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
0.82
[M09a]
|
|
other data, system (combined):
|
absolute mag. H: |
14.2
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
2.9
± 0.4
km [M16a]
| |
geometric albedo: |
0.37
[*E]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
370 km [*E]
|
other data, primary:
|
diameter dp: |
2.78
km [W05b]
| |
rotation period RPp: |
4.2175
± 0.0001
h [W05b]
| |
amplitude in mag., rotational ΔM: |
0.09
[W05b]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>0.83
km [*D]
| |
diameter ratio ds/dp: |
>0.3
[W05b]
| |
component mag. difference ΔM: |
<2.6
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(9069) Hovland
--discovery and notes:
Primary discovered
1993 Jul 16
from
Palomar Observatory, California, USA
by
E. F. Helin.
Alternate designation(s):
1993 OV,
1991 XF5.
Linked to prediscovery observations from 1991 Dec 01.
Permanent number assigned 1998 Aug 08.
Named 2001 May 09 for Larry E. Hovland (1947-) [MPC042669].
Companion discovered
2004 Oct
using
lightcurve
observations.
Announced
2004 Nov 16.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Warner, Brian D. 2013, Minor Planet Bulletin Seeing Double Old and New: Observations and Lightcurve Analysis at the Palmer Divide Observatory of Six Binary Asteroids
- Marchis, Franck, Berthier, J., Burns, K. J., Descamps, P., Durech, J., Emery, J. P., Enriquez, J. E., Lainey, V., Reiss, A. E., & Vachier, F. 2010, Bulletin of the American Astronomical Society Characteristics of Known Triple Asteroid Systems in the Main Belt
- Reiss, A. E., Marchis, F., & Emery, J. P. 2009, AGU Fall Meeting Abstracts Visible-Wavelength Integrated Spectroscopy of Binary Asteroids
- Marchis, F., Descamps, P., Berthier, J., Colas, F., Melbourne, J., Stockton, A. N., Fassnacht, C. D., & Dupuy, T. J. 2009, Central Bureau Electronic Telegrams Occultations of the (93) Minerva System
©
2004-2014, 2019
by Wm. Robert Johnston.
Last modified
29 May 2019.
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