Asteroids with Satellites Database--Johnston's Archive
(4435)
Holt
compiled by Wm. Robert Johnston
last updated
23 September 2018
--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:
Mars crossing asteroid
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
2.3172177467 AU
| |
orbital period P: |
3.527363924 yr
(= 1288.3940063 d)
| |
eccentricity e: |
0.335194273
| |
perihelion distance q: |
1.54049963 AU
| |
aphelion distance Q: |
3.093935865 AU
| |
inclination i: |
21.905298°
| |
argument of perihelion ω: |
110.07573°
| |
ascending node Ω: |
330.932641°
| |
mean anomaly M: |
319.212207°
| |
perihelion passage TP: |
2018 Jan 27.974301
| |
Epoch: |
2017 Sep 04
| |
data arc: |
1978-2017
(845 obs.)
| |
Earth MOID: |
0.681262 AU
| |
Jupiter Tisserand invariant TJ: |
3.412
|
orbital data, secondary:
|
semimajor axis as: |
16
km
[*E]
| |
separation/primary radius as/rp: | 6.7 [*D] | |
separation/Hill radius as/rH: | 0.028 [*D] | |
orbital period Ps: |
1.777
± 0.002
d [S18d]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.2
[MPC]
| |
slope parameter G: |
(0.24) [*A]
| |
effective diameter dE: |
5.03
± 1.17
km [N16*]
| |
geometric albedo: |
0.28
± 0.15
[N16*]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
S (SMASSII) [JPL]
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
580 km [*E]
|
other data, primary:
|
diameter dp: |
4.76
km [*D]
| |
rotation period RPp: |
2.867
± 0.0002
h [S18d]
| |
amplitude in mag., rotational ΔM: |
0.3
± 0.02
[S18d]
| |
amplitude in mag., mutual events ΔM: | 0.15 ±0.02 [S18d] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>1.62
km [*D]
| |
diameter ratio ds/dp: |
>0.34
[S18d]
| |
component mag. difference ΔM: |
<2.3
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(4435) Holt
--discovery and notes:
Primary discovered
1983 Jan 13
from
Palomar Observatory, California, USA
by
C. S. Shoemaker.
Alternate designation(s):
1983 AG2,
1978 PZ2.
Linked to prediscovery observations from 1978 Aug 08.
Permanent number assigned 1990 Apr 10.
Named 1991 Jan 30 for Henry H. Holt (1929-) [MPC017656].
Companion discovered
2017 Aug 30
by R. D. Stephens, D. Pray, P. Pravec, P. Kusnirak, H. Kucakova, K. Hornoch, and V. Benishek
using
lightcurve
observations from Center for Solar System Studies, Landers, California, USA; Sugarloaf Mountain Observatory, Massachusetts, USA; Belgrade Astronomical Observatory, Belgrade, Serbia.
Announced
2018 Jan 27 [S18g].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2018
by Wm. Robert Johnston.
Last modified
23 September 2018.
Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.