IAA RAS IAA Minor Planet Database

2021 RW9

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7117961000
Semi-major axis (a)1.2183147000 AU
Inclination (i)63.45049000°
Long. of Asc. Node (Ω)8.88733000°
Arg. of Perihelion (ω)126.05732000°
Mean Anomaly (M)0.11016000°
Mean Motion (n)0.7329339200°/day
Perihelion dist (q)0.35112300 AU
Aphelion dist (Q)2.08550640 AU
Orbital Period1.34474280 yr
Physical Parameters
H (abs. magnitude)20.99
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.550″
Uncertainty9
Orbit TypeApollo
MOID0.021262 AU
Observations Used18
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-09-22
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-09-08 11:33:00 C 04 32 49.89 +07 51 47.2 – W I41
2021-09-08 11:37:05 C 04 32 50.56 +07 51 57.6 – V G96
2021-09-08 11:44:32 C 04 32 51.90 +07 52 20.1 – V G96
2021-09-08 11:51:59 C 04 32 53.31 +07 52 41.0 – V G96
2021-09-08 11:59:26 C 04 32 54.65 +07 53 02.4 – V G96
2021-09-09 08:44:33 C 04 37 02.25 +08 54 23.2 – u H21
2021-09-09 08:50:34 C 04 37 03.47 +08 54 41.8 – u H21
2021-09-10 10:57:04 C 04 42 44.64 +10 19 22.1 – V G96
2021-09-10 10:58:00 C 04 42 44.82 +10 19 25.2 – V G96
2021-09-10 10:58:55 C 04 42 45.02 +10 19 28.1 – V G96
2021-09-10 10:59:51 C 04 42 45.26 +10 19 31.8 – V G96
2021-09-12 10:02:10 C 04 54 45.83 +13 16 21.6 – V G96
2021-09-12 10:05:20 C 04 54 46.70 +13 16 35.0 – V G96
2021-09-12 10:05:55 C 04 54 46.89 +13 16 37.2 – V G96
2021-09-12 11:10:33 C 04 55 05.06 +13 21 05.2 – W I41
2021-09-17 10:39:32 C 05 42 38.19 +24 02 09.5 – W I41
2021-09-20 11:59:50 C 06 34 25.84 +33 08 23.7 – W I41
2021-09-22 10:37:38 C 07 22 48.01 +39 12 41.3 – W I41