Asteroids with Satellites Database--Johnston's Archive
(127418)
2002 NB19
compiled by Wm. Robert Johnston
last updated
12 March 2025
--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: |
3.138094723 AU
| |
orbital period P: |
5.559135697 yr (= 2030.474313 d)
| |
eccentricity e: |
0.111418048
| |
perihelion distance q: |
2.78845436 AU
| |
aphelion distance Q: |
3.48773511 AU
| |
inclination i: |
3.9562383°
| |
argument of perihelion ω: |
28.277767°
| |
ascending node Ω: |
250.77939°
| |
mean anomaly M: |
58.794715°
| |
perihelion passage TP: |
2024 Jun 07.38567
| |
Epoch: |
2025 May 05
| |
data arc: |
2002-2024
(793 obs.)
| |
Earth MOID: |
1.77301 AU
| |
Jupiter Tisserand invariant TJ: |
3.198
|
orbital data, secondary:
|
semimajor axis as: |
9.6
km
(separation)
[H25b]
| |
separation/primary radius as/rp: | 3.6 [*E] | |
separation/Hill radius as/rH: | 0.0082 [*E] | |
orbital period Ps: |
0.73
d [*E]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
14.96
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
5.34
± 1.48
km [M19a]
| |
geometric albedo: |
0.098
± 0.034
[M19a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
1200 km [*E]
|
other data, primary:
|
diameter dp: |
5.34
± 1.48
km [M19a]
| |
dimensions : | 6 x ?km [H25b] | |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>1.7
km [H25b]
| |
diameter ratio ds/dp: |
>0.32
[*D]
| |
component mag. difference ΔM: |
<2.49
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(127418) 2002 NB19
--discovery and notes:
Primary discovered
2002 Jul 09
from
Socorro, New Mexico, USA
by
LINEAR Program.
Linked to prediscovery observations from 2002 Jun 16.
Permanent number assigned 2006 Mar 14.
Companion discovered
2024 Aug 17
by S. Kerr, D. Herald, et al.
using
stellar occultation
observations from Glenlee, Queensland, Australia.
Announced
2025 Mar 12 [H25b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2025
by Wm. Robert Johnston.
Last modified
12 March 2025.
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