IAA RAS IAA Minor Planet Database

2021 RR2

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4982807000
Semi-major axis (a)1.8851676000 AU
Inclination (i)2.23475000°
Long. of Asc. Node (Ω)291.49380000°
Arg. of Perihelion (ω)107.74852000°
Mean Anomaly (M)208.27725000°
Mean Motion (n)0.3807843900°/day
Perihelion dist (q)0.94582500 AU
Aphelion dist (Q)2.82451020 AU
Orbital Period2.58836160 yr
Physical Parameters
H (abs. magnitude)24.48
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.730″
Uncertainty9
Orbit TypeApollo
MOID0.026095 AU
Observations Used19
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-09-07
Observations (19)
Date Type RA Dec Mag Band Observatory
2021-09-06 10:15:53 C 00 35 51.75 +25 47 36.7 – V G96
2021-09-06 10:24:06 C 00 35 54.72 +25 48 18.7 – V G96
2021-09-06 10:32:20 C 00 35 57.75 +25 49 00.6 – V G96
2021-09-06 10:40:32 C 00 36 00.75 +25 49 41.1 – V G96
2021-09-06 11:34:59 C 00 36 20.81 +25 54 17.0 – V G96
2021-09-06 11:37:21 C 00 36 21.66 +25 54 28.2 – V G96
2021-09-06 11:39:44 C 00 36 22.56 +25 54 40.8 – V G96
2021-09-06 22:14:41 C 00 40 41.78 +26 49 26.1 – V L01
2021-09-06 22:19:22 C 00 40 43.59 +26 49 51.0 – V L01
2021-09-06 22:24:34 C 00 40 45.60 +26 50 18.9 – V L01
2021-09-06 22:30:36 C 00 40 48.04 +26 50 51.4 – V L01
2021-09-06 23:48:03 C 00 41 19.45 +26 57 41.9 – V I93
2021-09-07 00:08:47 C 00 41 27.71 +26 59 31.7 – V I93
2021-09-07 05:38:33 C 00 43 45.63 +27 28 50.8 – u H21
2021-09-07 06:03:23 C 00 43 55.63 +27 31 05.3 – u H21
2021-09-07 20:19:56 C 00 50 12.28 +28 47 55.9 – V 033
2021-09-07 20:21:55 C 00 50 13.16 +28 48 06.5 – V 033
2021-09-07 20:23:55 C 00 50 14.06 +28 48 17.9 – V 033
2021-09-07 20:26:26 C 00 50 15.17 +28 48 32.4 – V 033