Asteroids with Satellites Database--Johnston's Archive
(223393)
2003 SD106
compiled by Wm. Robert Johnston
last updated
30 June 2026
--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: |
3.040828499 AU
| |
orbital period P: |
5.302688217 yr (= 1936.8068712 d)
| |
eccentricity e: |
0.0787601682
| |
perihelion distance q: |
2.8013323348 AU
| |
aphelion distance Q: |
3.2803246632 AU
| |
inclination i: |
8.98995644°
| |
argument of perihelion ω: |
262.7392209°
| |
ascending node Ω: |
266.21960949°
| |
mean anomaly M: |
300.0574658°
| |
perihelion passage TP: |
2027 Apr 27.491978
| |
Epoch: |
2026 Jun 09
| |
data arc: |
2000-2026
(1029 obs.)
| |
Earth MOID: |
1.82669 AU
| |
Jupiter Tisserand invariant TJ: |
3.217
|
orbital data, secondary:
|
semimajor axis as: |
72.8
km
(separation)
[S26b]
| |
separation/primary radius as/rp: | 40 [*E] | |
separation/Hill radius as/rH: | 0.087 [*E] | |
orbital period Ps: |
26
d [*E]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
15.2
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
3.81
± 0.36
km [M19a]
| |
geometric albedo: |
0.16
± 0.023
[M19a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
830 km [*E]
|
other data, primary:
|
diameter dp: |
3.6
± 0.6
km [S26b]
| |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
2.1
± 0.9
km [S26b]
| |
dimensions : | ~2.3 x ~1.9 km [*D] | |
axial ratios a/b, b/c: | 1.25; ? [S26b] | |
diameter ratio ds/dp: |
0.58
± 0.27
[*D]
| |
component mag. difference ΔM: |
1.2
± 1.1
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(223393) 2003 SD106
--discovery and notes:
Primary discovered
2003 Sep 20
from
Palomar Observatory, California, USA
by
NEAT Survey.
Alternate designation(s):
2000 AY82, 2004 XG27.
Linked to prediscovery observations from 2000 Jan 05.
Permanent number assigned 2009 Nov 02.
Companion discovered
2026 Mar 12
by M. Skrutskie, D. Herald, D. Gault, and C. Weber
using
stellar occultation
observations from Nederland, Colorado, USA.
Announced
2026 Jun 29 [S26b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2026
by Wm. Robert Johnston.
Last modified
30 June 2026.
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