Asteroids with Satellites Database--Johnston's Archive
(160256)
2002 PD149
compiled by Wm. Robert Johnston
last updated
27 May 2019
--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:
TNO, Cubewano
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
42.90256795 AU
| |
orbital period P: |
281.01735 yr
(= 102641.5871 d)
| |
eccentricity e: |
0.064326311
| |
perihelion distance q: |
40.14280402 AU
| |
aphelion distance Q: |
45.66233189 AU
| |
inclination i: |
4.909308664°
| |
argument of perihelion ω: |
37.71770687°
| |
ascending node Ω: |
103.6521628°
| |
mean anomaly M: |
223.8023927°
| |
perihelion passage TP: |
2120 Sep 16
| |
Epoch: |
2014 May 23
| |
data arc: |
2000-2007
(18 obs.)
| |
Earth MOID: |
39.1574 AU
| |
Jupiter Tisserand invariant TJ: |
5.831
|
| Neptune Tisserand invariant TN: | 3.076 [*D] |
orbital data, secondary:
|
semimajor axis as: |
26780
± 340 km
[G19b]
| |
separation/primary radius as/rp: | 620 [*D] | |
separation/Hill radius as/rH: | 0.099 [*D] | |
orbital period Ps: |
1675.5
± 3.2
d [G19b]
| |
eccentricity es: |
0.5879
± 0.0083
[G19b]
| |
inclination is: | 32.92° ± 0.39° [G19b] | |
ascending node Ωs: | 55.29° ± 1° [G19b] | |
argument of pericenter ωs: | 246.8° ± 2.1° [G19b] | |
mean anomaly M: | 58.49° ± 0.77° [G19b] | |
Epoch: | 2014 Dec 08.5 | |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
6.3
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
113
km [*E]
| |
geometric albedo: |
(0.09
) [*A]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
5.42x1017
± 2.2x1016
kg [G19b]
| |
density ρ: |
(1
g/cm3) [*A]
| |
Hill radius rH: |
270000 km [*E]
|
other data, primary:
|
diameter dp: |
87
km [*E]
| |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
72
km [*E]
| |
diameter ratio ds/dp: |
0.832
[N07a]
| |
component mag. difference ΔM: |
0.4
[I8866]
| |
rotation period RPs: |
?
| |
|
|
--
(160256) 2002 PD149
--discovery and notes:
Primary discovered
2002 Aug 10
from
Cerro Tololo Observatory, La Serena, Chile
by
M. W. Buie.
Linked to prediscovery observations from 2000 Aug 25.
Permanent number assigned 2007 Jul 30.
Companion discovered
2007 May 22
by K. S. Noll, S. D. Kern, W. M. Grundy, D. C. Stephens, and H. F. Levison
using
Hubble Space Telescope
observations from Hubble Space Telescope.
Announced
2007 Aug 31 [N07a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Noll, K. S., Kern, S. D., Grundy, W. M., Stephens, D. C., & Levison, H. F. 2007, International Astronomical Union Circular (160256) 2002 PD_149
- Noll, K. S., Kern, S. D., Grundy, W. M., Stephens, D. C., & Levison, H. F. 2007, Central Bureau Electronic Telegrams (160256) 2002 PD_149
©
2007-2014, 2019
by Wm. Robert Johnston.
Last modified
27 May 2019.
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