Asteroids with Satellites Database--Johnston's Archive
(8116)
Jeanperrin
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: |
2.249749165 AU
| |
orbital period P: |
3.374499369 yr
(= 1232.535894 d)
| |
eccentricity e: |
0.158303423
| |
perihelion distance q: |
1.89360617 AU
| |
aphelion distance Q: |
2.605892159 AU
| |
inclination i: |
5.4310183°
| |
argument of perihelion ω: |
320.453725°
| |
ascending node Ω: |
49.040711°
| |
mean anomaly M: |
348.328394°
| |
perihelion passage TP: |
2014 Jul 01.96020
| |
Epoch: |
2014 May 23
| |
data arc: |
1987-2013
(1002 obs.)
| |
Earth MOID: |
0.895856 AU
| |
Jupiter Tisserand invariant TJ: |
3.606
|
orbital data, secondary:
|
binary dynamical type: | A [M09a] | |
semimajor axis as: |
13
km
[*E]
| |
separation/primary radius as/rp: | 5.7 [*E] | |
separation/Hill radius as/rH: | 0.019 [*E] | |
orbital period Ps: |
1.506
± 0.0008
d [H07a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
0.99
[M09a]
|
|
other data, system (combined):
|
absolute mag. H: |
13.7
[MPC]
13.52 ± 0.13 [H07a]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
4.77
± 0.08
km [M11b]
| |
geometric albedo: |
0.186
± 0.035
[M11b]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
670 km [*E]
|
other data, primary:
|
diameter dp: |
4.53
± 0.08
km [*D]
| |
rotation period RPp: |
3.6169
± 0.0002
h [H07a]
| |
amplitude in mag., rotational ΔM: |
0.1
[W14e]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1.49
km [*D]
| |
diameter ratio ds/dp: |
>0.33
[H07a]
| |
component mag. difference ΔM: |
<2.4
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(8116) Jeanperrin
--discovery and notes:
Primary discovered
1996 Apr 17
from
European Southern Observatory, La Silla, Chile
by
E. W. Elst.
Alternate designation(s):
1996 HA15,
1987 WU3, 1990 RS11.
Linked to prediscovery observations from 1987 Nov 24.
Permanent number assigned 1997 Dec 14.
Named 1998 Feb 11 for Jean Perrin (1870-1942) [MPC31299].
Companion discovered
2007 Oct 04
by D. Higgins, P. Pravec, P. Kusnirak, K. Hornoch, M. Husarik, M. Pikler, G. Cervak, D. Pray, S. Gajdos, Yu. Krugly, A. Marshalkina, R. Stephens, F. Colas, W. Cooney, J. Gross, and D. Terrell
using
lightcurve
observations from Canberra, Australia; Ondrejov Observatory, Czech Republic; Skalnate Pleso Observatory; Carbuncle Hill Observatory, Greene, Rhode Island; Modra Observatory, Slovakia; Kharkiv National University, Ukraine; Ulugh Beg Astronomical Institute, Uzbekistan; Goat Mountain Astronomical Research Station, Yucca Valley, California, USA; Pic du Midi Observatory; Sonoita Research Observatory, Sonoita, Arizona, USA.
Announced
2007 Nov 09 [H07a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Torno, Steven, Oliver, Robert Lemke, & Ditteon, Richard 2008, Minor Planet Bulletin Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory - October 2007
- Higgins, D., Pravec, P., Kusnirak, P., Hornoch, K., Husarik, M., Pikler, M., Cervak, G., Pray, D., Gajdos, S., Krugly, Yu., Marshalkina, A., Stephens, R., Colas, F., Cooney, W., Gross, J., & Terrell, D. 2007, Central Bureau Electronic Telegrams (8116) Jeanperrin
©
2007-2008, 2014
by Wm. Robert Johnston.
Last modified
21 September 2014.
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