Asteroids with Satellites Database--Johnston's Archive
(2037)
Tripaxeptalis
compiled by Wm. Robert Johnston
last updated
4 February 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:
main belt asteroid
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
2.3007605667 AU
| |
orbital period P: |
3.489918943 yr
(= 1274.6928941 d)
| |
eccentricity e: |
0.1319956427
| |
perihelion distance q: |
1.997070197 AU
| |
aphelion distance Q: |
2.6044509363 AU
| |
inclination i: |
4.25044075°
| |
argument of perihelion ω: |
346.0874351°
| |
ascending node Ω: |
9.4622065°
| |
mean anomaly M: |
80.6869319°
| |
perihelion passage TP: |
2022 May 15.302615
| |
Epoch: |
2023 Feb 25
| |
data arc: |
1973-2022
(4322 obs.)
| |
Earth MOID: |
0.991177 AU
| |
Jupiter Tisserand invariant TJ: |
3.576
|
orbital data, secondary:
|
semimajor axis as: |
14
km
[*E]
| |
separation/primary radius as/rp: | 4.8 [*E] | |
separation/Hill radius as/rH: | 0.015 [*E] | |
orbital period Ps: |
1.0938
± 0.0008
d [B23b]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.32
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
5.96
± 0.21
km [M**]
| |
geometric albedo: |
0.198
± 0.032
[M**]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
color index J-H: | 0.357 ± 0.199 [LMP] | |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
910 km [*E]
|
other data, primary:
|
diameter dp: |
5.82 ± 0.21
km [*D]
| |
rotation period RPp: |
2.49535
± 0.00006
h [B23b]
| |
amplitude in mag., rotational ΔM: |
0.12
[B23b]
| |
amplitude in mag., mutual events ΔM: | 0.075 ±0.025 [B23b] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1.28
± 0.12
km [*D]
| |
diameter ratio ds/dp: |
0.22
± 0.02
[B23b]
| |
component mag. difference ΔM: |
3.3
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(2037) Tripaxeptalis
--discovery and notes:
Primary discovered
1973 Oct 25
from
Zimmerwald, Switzerland
by
P. Wild.
Alternate designation(s):
1973 UB,
A917 SN.
Named 1980 Jun 01 for a whimsical name [MPC005359].
Companion discovered
2022 Oct 28
by V. Benishek, P. Pravec, and R. Durkee
using
lightcurve
observations from Sopot Observatory, Serbia; Shed of Science South Observatory, Pontotoc, Texas, USA.
Announced
2023 Feb 02 [B23b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2023
by Wm. Robert Johnston.
Last modified
4 February 2023.
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