Asteroids with Satellites Database--Johnston's Archive
(15268)
Wendelinefroger
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: |
2.365111709 AU
| |
orbital period P: |
3.637355000 yr
(= 1328.543914 d)
| |
eccentricity e: |
0.235088725
| |
perihelion distance q: |
1.80910061 AU
| |
aphelion distance Q: |
2.921122805 AU
| |
inclination i: |
2.7541475°
| |
argument of perihelion ω: |
210.38849°
| |
ascending node Ω: |
144.06387°
| |
mean anomaly M: |
205.832387°
| |
perihelion passage TP: |
2015 Dec 12.94012
| |
Epoch: |
2014 May 23
| |
data arc: |
1979-2014
(813 obs.)
| |
Earth MOID: |
0.803457 AU
| |
Jupiter Tisserand invariant TJ: |
3.509
|
orbital data, secondary:
|
semimajor axis as: |
8.7
km
[*E]
| |
separation/primary radius as/rp: | 4.5 [*E] | |
separation/Hill radius as/rH: | 0.016 [*E] | |
orbital period Ps: |
1.045
± 0.0008
d [O08a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
14.6
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
3.97
km [*E]
| |
geometric albedo: |
(0.16
) [*A]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
540 km [*E]
|
other data, primary:
|
diameter dp: |
3.83
km [*E]
| |
rotation period RPp: |
2.4224
± 0.0001
h [O08a]
| |
amplitude in mag., rotational ΔM: |
0.07
[O08a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1.03
km [*E]
| |
diameter ratio ds/dp: |
>0.27
[O08a]
| |
component mag. difference ΔM: |
<2.8
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(15268) Wendelinefroger
--discovery and notes:
Primary discovered
1990 Nov 18
from
European Southern Observatory, La Silla, Chile
by
E. W. Elst.
Alternate designation(s):
1990 WF3,
1979 WA7, 1986 PO5, 1999 CD133.
Linked to prediscovery observations from 1979 Nov 17.
Permanent number assigned 2000 Jun 21.
Named 2008 Dec 12 for Wendeline Froger (1948-) [MPC64563].
Companion discovered
2008 Sep 24
by J. Oey, P. Pravec, P. Kusnirak, K. Hornoch, R. Stephens, S. Gajdos, L. Kornos, and V. Chiorny
using
lightcurve
observations from Leura Observatory, New South Wales, Australia; Ondrejov Observatory, Czech Republic; Goat Mountain Astronomical Research Station, Yucca Valley, California, USA; Modra Observatory, Slovakia; Kharkiv National University, Ukraine.
Announced
2008 Oct 20 [O08a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Oey, J., Pravec, P., Kusnirak, P., Hornoch, K., Stephens, R., Gajdos, S., Kornos, L., & Chiorny, V. 2008, Central Bureau Electronic Telegrams (15268) 1990 WF3
©
2008-2009, 2014
by Wm. Robert Johnston.
Last modified
21 September 2014.
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