Asteroids with Satellites Database--Johnston's Archive
(20882)
Paulsanchez
compiled by Wm. Robert Johnston
last updated
9 November 2020
--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: |
2.3634077882 AU
| |
orbital period P: |
3.6333563425 yr
(= 1327.1084681 d)
| |
eccentricity e: |
0.247037778
| |
perihelion distance q: |
1.779556779 AU
| |
aphelion distance Q: |
2.947258797 AU
| |
inclination i: |
2.3778571°
| |
argument of perihelion ω: |
358.181402°
| |
ascending node Ω: |
13.666526°
| |
mean anomaly M: |
58.781524°
| |
perihelion passage TP: |
2018 Sep 22.307060
| |
Epoch: |
2019 Apr 27
| |
data arc: |
1949-2019
(1789 obs.)
| |
Earth MOID: |
0.778896 AU
| |
Jupiter Tisserand invariant TJ: |
3.507
|
orbital data, secondary:
|
semimajor axis as: |
11
km
[*E]
| |
separation/primary radius as/rp: | 5.4 [*E] | |
separation/Hill radius as/rH: | 0.014 [*E] | |
orbital period Ps: |
1.3671
± 0.0008
d [W18e]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
14.4
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
4.38
km [*E]
| |
geometric albedo: |
(0.16
) [*A]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
760 km [*E]
|
other data, primary:
|
diameter dp: |
4.09
km [*E]
| |
rotation period RPp: |
2.5586
± 0.0001
h [W18e]
| |
amplitude in mag., rotational ΔM: |
0.15
[W18e]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1.47
km [*E]
| |
diameter ratio ds/dp: |
0.36
± 0.04
[W19c]
| |
component mag. difference ΔM: |
2.2
± 0.2
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(20882) Paulsanchez
--discovery and notes:
Primary discovered
2000 Nov 03
from
Socorro, New Mexico, USA
by
LINEAR Program.
Alternate designation(s):
2000 VH57,
1999 JL6.
Linked to prediscovery observations from 1949 Nov 21.
Permanent number assigned 2001 Jan 09.
Named 2019 Aug 27 for Diego Paul Sanchez Lana (1976-) [MPC115893].
Companion discovered
2018 Sep 15
by B. D. Warner, A. Aznar Macias, M. Serra-Ricart, J. Licandro, and P. Pravec
using
lightcurve
observations from CS3, Landers, California, USA; Canary Astrophysics Institute.
Announced
2018 Nov 08 [W18e].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2018-2019, 2020
by Wm. Robert Johnston.
Last modified
9 November 2020.
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