Asteroids with Satellites Database--Johnston's Archive
(236716)
2007 FV42
compiled by Wm. Robert Johnston
last updated
30 September 2023
--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:
NEA, Amor
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
2.176057285 AU
| |
orbital period P: |
3.2100639792 yr
(= 1172.4758684 d)
| |
eccentricity e: |
0.472601181
| |
perihelion distance q: |
1.147650042 AU
| |
aphelion distance Q: |
3.204464528 AU
| |
inclination i: |
9.8320552°
| |
argument of perihelion ω: |
181.681858°
| |
ascending node Ω: |
100.965426°
| |
mean anomaly M: |
17.5490015°
| |
perihelion passage TP: |
2023 Jul 17.845053
| |
Epoch: |
2023 Sep 13
| |
data arc: |
1991-2023
(1018 obs.)
| |
Earth MOID: |
0.130605 AU
| |
Jupiter Tisserand invariant TJ: |
3.514
|
orbital data, secondary:
|
semimajor axis as: |
1.3
km
[*E]
| |
separation/primary radius as/rp: | 3.4 [*E] | |
separation/Hill radius as/rH: | 0.010 [*E] | |
orbital period Ps: |
0.6542
± 0.0004
d [W23d]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
17.92
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
0.86
km [*E]
| |
geometric albedo: |
(0.16
) [*A]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
S, Sr (Tholen) [W23d]
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
130 km [*E]
|
other data, primary:
|
diameter dp: |
0.76
km [*E]
| |
rotation period RPp: |
2.687
± 0.001
h [W23d]
| |
amplitude in mag., rotational ΔM: |
0.16
[W23d]
| |
amplitude in mag., mutual events ΔM: | 0.24 [W23d] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>0.41
km [*E]
| |
diameter ratio ds/dp: |
>0.54
± 0.03
[W23d]
| |
component mag. difference ΔM: |
<1.3
± 0.1
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(236716) 2007 FV42
--discovery and notes:
Primary discovered
2007 Mar 20
from
Catalina Station, Arizona, USA
by
Catalina Sky Survey.
Alternate designation(s):
1991 RQ32.
Linked to prediscovery observations from 1991 Sep 05.
Permanent number assigned 2010 Mar 30.
Companion discovered
2023 Jun 20
by B. D. Warner
using
lightcurve
observations from Center for Solar System Studies, Landers, California, USA.
Announced
2023 Sep [W23d].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2023
by Wm. Robert Johnston.
Last modified
30 September 2023.
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