IAA RAS IAA Minor Planet Database

2021 RX9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5777893000
Semi-major axis (a)1.8726920000 AU
Inclination (i)3.51781000°
Long. of Asc. Node (Ω)173.10906000°
Arg. of Perihelion (ω)251.99544000°
Mean Anomaly (M)208.08803000°
Mean Motion (n)0.3845958100°/day
Perihelion dist (q)0.79067060 AU
Aphelion dist (Q)2.95471340 AU
Orbital Period2.56271040 yr
Physical Parameters
H (abs. magnitude)25.98
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.450″
Uncertainty9
Orbit TypeApollo
MOID0.007062 AU
Observations Used14
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-09-11
Observations (14)
Date Type RA Dec Mag Band Observatory
2021-09-10 07:02:18 C 23 48 42.55 +02 25 14.3 – V G96
2021-09-10 07:13:10 C 23 48 44.40 +02 25 17.2 – V G96
2021-09-10 07:29:34 C 23 48 47.16 +02 25 21.8 – V G96
2021-09-10 08:49:03 C 23 49 00.79 +02 25 40.9 – V G96
2021-09-10 08:51:56 C 23 49 01.32 +02 25 41.8 – V G96
2021-09-10 08:52:46 C 23 49 01.42 +02 25 40.9 – V G96
2021-09-11 06:06:07 C 23 53 34.32 +02 31 12.0 – V G96
2021-09-11 06:07:13 C 23 53 34.54 +02 31 12.0 – V G96
2021-09-11 06:09:05 C 23 53 34.94 +02 31 12.6 – V G96
2021-09-11 06:10:57 C 23 53 35.32 +02 31 13.0 – V G96
2021-09-11 22:53:58 C 23 57 39.67 +02 35 43.6 – X L01
2021-09-11 22:57:49 C 23 57 40.59 +02 35 44.8 – X L01
2021-09-11 23:01:41 C 23 57 41.53 +02 35 46.0 – X L01
2021-09-11 23:05:32 C 23 57 42.41 +02 35 46.9 – X L01