IAA RAS IAA Minor Planet Database

2021 RD239

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4331529000
Semi-major axis (a)1.6149765000 AU
Inclination (i)1.61678000°
Long. of Asc. Node (Ω)338.80145000°
Arg. of Perihelion (ω)315.68020000°
Mean Anomaly (M)37.14712000°
Mean Motion (n)0.4802360600°/day
Perihelion dist (q)0.91544470 AU
Aphelion dist (Q)2.31450830 AU
Orbital Period2.05234000 yr
Physical Parameters
H (abs. magnitude)28.39
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.750″
Uncertainty7
Orbit TypeApollo
MOID0.001047 AU
Observations Used16
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-09-05
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-09-03 08:44:38 C 01 35 49.84 +29 39 59.1 – V I41
2021-09-03 08:45:08 C 01 35 46.26 +29 39 18.1 – V I41
2021-09-04 08:09:17 C 00 43 57.37 +16 15 11.0 – V I41
2021-09-04 09:09:25 C 00 42 57.85 +16 02 34.0 – V I41
2021-09-04 09:10:46 C 00 42 56.52 +16 02 17.1 – V I41
2021-09-05 01:32:09 C 00 34 43.71 +13 36 18.4 – o K88
2021-09-05 01:35:02 C 00 34 42.24 +13 36 01.6 – o K88
2021-09-05 01:37:54 C 00 34 40.90 +13 35 43.5 – o K88
2021-09-05 09:07:58 C 00 32 42.49 +12 58 18.0 – V I41
2021-09-05 09:09:20 C 00 32 41.87 +12 58 12.0 – V I41
2021-09-05 09:48:50 C 00 32 51.387 +12 56 59.22 – V F52
2021-09-05 10:04:38 C 00 32 45.011 +12 55 51.29 – V F52
2021-09-05 20:56:47 C 00 30 25.68 +12 09 06.1 – V K88
2021-09-05 21:01:33 C 00 30 24.46 +12 08 52.1 – V K88
2021-09-05 21:06:13 C 00 30 23.25 +12 08 38.0 – V K88
2021-09-05 23:35:19 C 00 29 43.47 +12 01 05.6 – V K88
2021-09-05 23:39:59 C 00 29 42.15 +12 00 52.0 – V K88
2021-09-05 23:44:39 C 00 29 40.87 +12 00 36.8 – V K88