IAA RAS IAA Minor Planet Database

2021 RO3

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4596193000
Semi-major axis (a)1.8738916000 AU
Inclination (i)17.33941000°
Long. of Asc. Node (Ω)345.19585000°
Arg. of Perihelion (ω)305.34408000°
Mean Anomaly (M)248.73812000°
Mean Motion (n)0.3842265400°/day
Perihelion dist (q)1.01261490 AU
Aphelion dist (Q)2.73516830 AU
Orbital Period2.56517320 yr
Physical Parameters
H (abs. magnitude)24.39
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.810″
Uncertainty9
Orbit TypeAmor
MOID0.112687 AU
Observations Used17
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-09-13
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-09-07 09:49:42 C 22 26 38.922 -15 17 24.08 – U F51
2021-09-07 10:06:32 C 22 26 37.592 -15 15 50.01 – U F51
2021-09-07 10:23:24 C 22 26 36.270 -15 14 15.58 – U F51
2021-09-07 13:05:06 C 22 26 24.089 -14 59 14.37 – V F51
2021-09-07 13:06:05 C 22 26 24.057 -14 59 09.94 – V F51
2021-09-07 22:34:10 C 22 25 52.99 -14 07 58.5 – V 033
2021-09-07 22:36:50 C 22 25 52.80 -14 07 43.8 – V 033
2021-09-07 22:39:30 C 22 25 52.62 -14 07 29.8 – V 033
2021-09-07 22:42:30 C 22 25 52.43 -14 07 13.8 – V 033
2021-09-08 10:12:24 C 22 25 12.844 -13 06 06.41 – U F51
2021-09-08 10:31:26 C 22 25 11.506 -13 04 27.86 – U F51
2021-09-08 10:49:58 C 22 25 10.190 -13 02 51.40 – U F51
2021-09-08 22:12:26 C 22 24 34.69 -12 05 05.1 – V 033
2021-09-08 22:15:31 C 22 24 34.51 -12 04 49.8 – V 033
2021-09-08 22:18:36 C 22 24 34.34 -12 04 34.1 – V 033
2021-09-13 08:07:10 C 22 20 12.68 -04 27 52.1 – o 291
2021-09-13 08:12:45 C 22 20 12.47 -04 27 31.3 – o 291
2021-09-13 08:18:21 C 22 20 12.20 -04 27 11.2 – o 291