Asteroids with Satellites Database--Johnston's Archive
(4468)
Pogrebetskij
compiled by Wm. Robert Johnston
last updated
18 September 2026
--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: |
2.36079074153 AU
| |
orbital period P: |
3.6273915937 yr
(= 1324.90477959 d)
| |
eccentricity e: |
0.16450885706
| |
perihelion distance q: |
1.9724197549 AU
| |
aphelion distance Q: |
2.74916172818 AU
| |
inclination i: |
0.595759507°
| |
argument of perihelion ω: |
51.1763001°
| |
ascending node Ω: |
48.9968228°
| |
mean anomaly M: |
177.86299626°
| |
perihelion passage TP: |
2024 Aug 23.4124059
| |
Epoch: |
2026 Jun 09
| |
data arc: |
1951-2026
(4172 obs.)
| |
Earth MOID: |
0.98893 AU
| |
Jupiter Tisserand invariant TJ: |
3.533
|
orbital data, secondary:
|
semimajor axis as: |
21.3
km
(separation)
[B26m]
| |
separation/primary radius as/rp: | 10 [*E] | |
separation/Hill radius as/rH: | 0.030 [*E] | |
orbital period Ps: |
3.1
d [*E]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
14.16
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
4.16
± 0.04
km [M19a]
| |
geometric albedo: |
0.213
± 0.045
[M19a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
| |
mass m: |
?
| |
density ρ: |
(2
g/cm3) [*A]
| |
Hill radius rH: |
710 km [*E]
|
other data, primary:
|
diameter dp: |
4.2
± 0.4
km [B26m]
| |
axial ratios a/b, b/c: | 1.2, ? [*E] | |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
0.18
[B26m]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1.65
± 0.35
km [B26m]
| |
diameter ratio ds/dp: |
0.39
± 0.09
[*D]
| |
component mag. difference ΔM: |
2.03
± 0.51
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(4468) Pogrebetskij
--discovery and notes:
Primary discovered
1976 Sep 24
from
Nauchnyj, Crimea, Ukraine, USSR
by
N. S. Chernykh.
Alternate designation(s):
1976 SZ3,
1974 DF2, 1978 ED3, 1979 OL3, 1980 WR2.
Linked to prediscovery observations from 1951 Nov 08.
Permanent number assigned 1990 Jun 08.
Named 1994 Apr 25 for Mikhail Timofeevich Pogrebetskij (1892-1956) [MPC023352].
Companion discovered
2026 Aug 24
by R. Brown, L. Liberato, D. Herald, D. Gault, and C. Weber
using
stellar occultation
observations from Glen William, New South Wales, Australia.
Announced
2026 Sep 14 [B26m].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2026
by Wm. Robert Johnston.
Last modified
18 September 2026.
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