Asteroids with Satellites Database--Johnston's Archive
(17246)
Christophedumas
and S/2004 (17246) 1
compiled by Wm. Robert Johnston
last updated
21 June 2016
--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: |
2.838968952 AU
| |
orbital period P: |
4.783537322 yr
(= 1747.187007 d)
| |
eccentricity e: |
0.021176578
| |
perihelion distance q: |
2.77884931 AU
| |
aphelion distance Q: |
2.899088599 AU
| |
inclination i: |
2.4448935°
| |
argument of perihelion ω: |
229.90954°
| |
ascending node Ω: |
34.46078°
| |
mean anomaly M: |
293.33534°
| |
perihelion passage TP: |
2015 Apr 11.543
| |
Epoch: |
2014 May 23
| |
data arc: |
1971-2014
(907 obs.)
| |
Earth MOID: |
1.7636 AU
| |
Jupiter Tisserand invariant TJ: |
3.308
|
orbital data, secondary:
|
binary dynamical type: | W [P07f] | |
semimajor axis as: |
228
km
[D10a]
| |
separation/primary radius as/rp: | 100 [*E] | |
separation/Hill radius as/rH: | 0.234 [*E] | |
orbital period Ps: |
90
d [M04a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.8
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
4.61
km [*D]
| |
geometric albedo: |
0.21
[T04b]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
980 km [*E]
|
other data, primary:
|
diameter dp: |
4.5
km [D10a]
| |
rotation period RPp: |
>5
h [P11b]
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1
km [D10a]
| |
diameter ratio ds/dp: |
0.222
[D10a]
| |
component mag. difference ΔM: |
3.3
[* D]
| |
rotation period RPs: |
?
| |
|
|
--
(17246) Christophedumas and S/2004 (17246) 1
--discovery and notes:
Primary discovered
2000 Apr 05
from
Socorro, New Mexico, USA
by
LINEAR.
Alternate designation(s):
2000 GL74,
1973 VM.
Linked to prediscovery observations from 1971 Apr 16.
Permanent number assigned 2000 Sep 13.
Companion discovered
2004 Jan 14
by P. M. Tamblyn, W. J. Merline, C. R. Chapman, D. Nesvorny, D. D. Durda, C. Dumas, A. D. Storrs, L. M. Close, and F. Menard
using
Hubble Space Telescope
observations from Hubble Space Telescope.
Announced
2004 Feb 24 [T04b].
Provisional designation S/2004 (17246) 1.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Jacobson, Seth A., Scheeres, Daniel J., & McMahon, Jay 2014, The Astrophysical Journal Formation of the Wide Asynchronous Binary Asteroid Population
- Merline, W. J., Tamblyn, P. M., Nesvorny, D., Durda, D. D., Chapman, C. R., Dumas, C., Storrs, A. D., Feldman, B., Owen, W. M., Close, L. M., & Menard, F. 2004, Bulletin of the American Astronomical Society Discovery of binaries among small asteroids in the Koronis dynamical family using the HST Advanced Camera for Surveys
- Merline, William 2004, HST Proposal Determination of orbits and colors for two new binaries in the Koronis asteroid family
- Tamblyn, P. M., Merline, W. J., Chapman, C. R., Nesvorny, D., Durda, D. D., Dumas, C., Storrs, A. D., Close, L. M., & Menard, F. 2004, International Astronomical Union Circular S/2004 (17246) 1
©
2004-2014, 2016
by Wm. Robert Johnston.
Last modified
21 June 2016.
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