Asteroids with Satellites Database--Johnston's Archive
(4296)
Van Woerkom
compiled by Wm. Robert Johnston
last updated
27 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
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
2.2487558164 AU
| |
orbital period P: |
3.372200974 yr
(= 1231.7196683 d)
| |
eccentricity e: |
0.165864138
| |
perihelion distance q: |
1.87576787 AU
| |
aphelion distance Q: |
2.6217437606 AU
| |
inclination i: |
6.1478296°
| |
argument of perihelion ω: |
26.671687°
| |
ascending node Ω: |
13.107595°
| |
mean anomaly M: |
27.589428°
| |
perihelion passage TP: |
2016 Nov 13.604331
| |
Epoch: |
2017 Feb 16
| |
data arc: |
1935-2017
(1474 obs.)
| |
Earth MOID: |
0.885707 AU
| |
Jupiter Tisserand invariant TJ: |
3.603
|
orbital data, secondary:
|
semimajor axis as: |
17
km
[*E]
| |
separation/primary radius as/rp: | 4.7 [*E] | |
separation/Hill radius as/rH: | 0.016 [*D] | |
orbital period Ps: |
1.093
d [W17a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.2
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
7.56
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: |
1100 km [*E]
|
other data, primary:
|
diameter dp: |
7.24
km [*E]
| |
rotation period RPp: |
2.809
± 0.002
h [O17a]
| |
amplitude in mag., rotational ΔM: |
0.2
[O17a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
2.17
km [*E]
| |
diameter ratio ds/dp: |
0.3
[O17a]
| |
component mag. difference ΔM: |
2.6
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(4296) Van Woerkom
--discovery and notes:
Primary discovered
1935 Sep 28
from
Johannesburg, South Africa
by
H. van Gent.
Alternate designation(s):
1935 SA2,
1972 TE5, 1979 WB3.
Permanent number assigned 1990 Jan 11.
Named 1991 Apr 28 for A. J. J. van Woerkom [MPC018140].
Companion discovered
2016 Nov 29
by P. Pravec, C. Odden, et al.
using
lightcurve
observations.
Announced
2017 Jan 08 [P17c].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2017, 2019
by Wm. Robert Johnston.
Last modified
27 May 2019.
Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.