Asteroids with Satellites Database--Johnston's Archive
(60186)
Las Cruces
compiled by Wm. Robert Johnston
last updated
29 September 2025
--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: |
3.179201804 AU
| |
orbital period P: |
5.6687244448 yr
(= 2070.5016034 d)
| |
eccentricity e: |
0.17398851257
| |
perihelion distance q: |
2.6260572109 AU
| |
aphelion distance Q: |
3.732346397 AU
| |
inclination i: |
14.795241145°
| |
argument of perihelion ω: |
63.17095169°
| |
ascending node Ω: |
40.9662578°
| |
mean anomaly M: |
154.70195807°
| |
perihelion passage TP: |
2023 Jun 15.2481882
| |
Epoch: |
2025 Nov 21
| |
data arc: |
1985-2025
(3636 obs.)
| |
Earth MOID: |
1.68075 AU
| |
Jupiter Tisserand invariant TJ: |
3.125
|
orbital data, secondary:
|
semimajor axis as: |
32
km
(separation)
[P25g]
| |
separation/primary radius as/rp: | 4.7 [*E] | |
separation/Hill radius as/rH: | 0.012 [*E] | |
orbital period Ps: |
1.1
d [*E]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
12.98
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
13.49
± 0.23
km [M19a]
| |
geometric albedo: |
0.061
± 0.007
[M19a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
2800 km [*E]
|
other data, primary:
|
diameter dp: |
13.5
± 1.4
km [P25g]
| |
dimensions : | ~15 x ~12 km [*D] | |
axial ratios a/b, b/c: | 1.24, ? [P25g] | |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
4
± 2
km [P25g]
| |
diameter ratio ds/dp: |
0.30
[*D]
| |
component mag. difference ΔM: |
2.6
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(60186) Las Cruces
--discovery and notes:
Primary discovered
1999 Nov 13
from
Jornada Observatory, New Mexico, USA
by
D. S. Dixon and J. Stevens.
Alternate designation(s):
1999 VH22
.
Linked to prediscovery observations from 1985 Mar 23.
Permanent number assigned 2003 Jun 14.
Named 2003 Nov 09 for the city in New Mexico, USA [MPC050254].
Companion discovered
2025 Jun 26
by H. Pavlov, P. Nosworthy, D. Gault, D. Herald, C. Weber, and B. Anderson
using
stellar occultation
observations from St. Clair, New South Wales, Australia; Hazelbrook, New South Wales, Australia; Hawkesbury Heights, New South Wales, Australia.
Announced
2025 Nov 02 [P25g].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2025
by Wm. Robert Johnston.
Last modified
29 September 2025.
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