2021 RD12

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5804640506 ± 2.27e-04
Semi-major axis (a)2.3149523591 AU ± 1.20e-03
Inclination (i)2.62646020° ± 8.05e-04
Long. of Asc. Node (Ω)163.41185262° ± 1.97e-03
Arg. of Perihelion (ω)142.02997920° ± 4.24e-03
Mean Anomaly (M)80.50944876° ± 3.45e-01
Mean Motion (n)0.2798331682°/day ± 2.18e-04
Perihelion dist (q)0.97120574 AU ± 7.29e-04
Aphelion dist (Q)3.65869898 AU ± 1.98e-03
Orbital Period3.52219249 yr ± 2.75e-03
Physical Parameters
H (abs. magnitude)23.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.354″
Uncertainty3
Orbit TypeApollo
MOID0.008392 AU
Observations Used26
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-08
Last Observation Used2021-10-07
Observations (28)
Date Type RA Dec Mag Band Observatory
2021-08-23 10:49:45 S 03 49 15.970 +29 06 00.00 L C51
2021-08-23 12:23:49 S 03 48 26.806 +28 56 58.88 L C51
2021-09-08 09:12:35 C 02 28 26.93 +11 31 41.9 V G96
2021-09-08 09:20:05 C 02 28 26.09 +11 31 31.6 V G96
2021-09-08 09:27:32 C 02 28 25.27 +11 31 22.4 V G96
2021-09-08 09:35:01 C 02 28 24.44 +11 31 13.3 V G96
2021-09-10 11:17:24 C 02 23 42.012 +10 31 11.50 U F52
2021-09-10 11:34:54 C 02 23 40.147 +10 30 52.16 U F52
2021-09-10 11:52:25 C 02 23 38.260 +10 30 32.57 U F52
2021-09-10 12:09:56 C 02 23 36.367 +10 30 12.92 U F52
2021-09-12 11:13:01 C 02 19 28.094 +09 39 34.29 V 568
2021-09-12 11:14:25 C 02 19 27.955 +09 39 32.92 V 568
2021-09-12 11:15:49 C 02 19 27.815 +09 39 31.52 V 568
2021-09-12 11:17:14 C 02 19 27.675 +09 39 30.09 V 568
2021-09-12 23:21:47 C 02 18 26.59 +09 26 56.5 V I93
2021-09-12 23:27:08 C 02 18 26.11 +09 26 51.2 V I93
2021-09-12 23:32:28 C 02 18 25.60 +09 26 45.4 V I93
2021-09-13 01:39:56 C 02 18 13.02 +09 24 37.1 V 033
2021-09-13 01:42:35 C 02 18 12.82 +09 24 34.7 V 033
2021-09-13 01:45:14 C 02 18 12.52 +09 24 31.9 V 033
2021-10-02 09:41:20 C 01 46 13.483 +04 21 08.47 U F52
2021-10-02 09:57:48 C 01 46 12.387 +04 21 01.78 U F52
2021-10-02 10:14:23 C 01 46 11.314 +04 20 54.99 U F52
2021-10-02 10:30:58 C 01 46 10.189 +04 20 48.11 U F52
2021-10-07 08:18:02 C 01 39 45.65 +03 37 07.4 V V06
2021-10-07 08:28:14 C 01 39 45.02 +03 37 03.9 V V06
2021-10-07 08:35:19 C 01 39 44.61 +03 37 01.6 V V06
2021-10-07 08:42:24 C 01 39 44.17 +03 36 59.0 V V06