2013 RC21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5138273361 ± 9.45e-08
Semi-major axis (a)1.1867904764 AU ± 6.32e-09
Inclination (i)21.79886687° ± 9.16e-06
Long. of Asc. Node (Ω)153.75670772° ± 1.40e-05
Arg. of Perihelion (ω)22.86978895° ± 1.53e-05
Mean Anomaly (M)315.09340936° ± 2.22e-05
Mean Motion (n)0.7623443699°/day ± 6.09e-09
Perihelion dist (q)0.57698509 AU ± 1.12e-07
Aphelion dist (Q)1.79659587 AU ± 1.13e-07
Orbital Period1.29288852 yr ± 1.03e-08
Physical Parameters
H (abs. magnitude)20.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.228″
Uncertainty0
Orbit TypeApollo
MOID0.284739 AU
Observations Used51
Oppositions3
Arc Total2013-2025
First Observation Used2013-09-01
Last Observation Used2025-09-29
Observations (52)
Date Type RA Dec Mag Band Observatory
2013-09-01 10:27:46 C 23 53 32.607 -12 02 33.23 L F51
2013-09-01 10:47:09 C 23 53 31.056 -12 02 57.28 L F51
2013-09-01 11:06:31 C 23 53 29.479 -12 03 21.25 L F51
2013-09-01 11:25:53 C 23 53 27.918 -12 03 45.34 L F51
2013-09-02 08:33:29 C 23 51 48.29 -12 29 41.2 q W86
2013-09-02 08:40:04 C 23 51 47.77 -12 29 49.3 q W86
2013-09-02 08:46:38 C 23 51 47.24 -12 29 57.4 q W86
2013-09-02 08:53:12 C 23 51 46.70 -12 30 05.5 q W86
2013-09-02 09:40:48 C 23 51 43.764 -12 31 13.81 t 568
2013-09-02 09:42:44 C 23 51 43.612 -12 31 16.13 t 568
2013-09-02 09:44:32 C 23 51 43.460 -12 31 18.47 t 568
2013-09-03 07:53:56 C 23 49 57.42 -12 58 39.3 u H21
2013-09-03 08:11:43 C 23 49 55.96 -12 59 01.1 u H21
2013-09-03 08:27:47 C 23 49 54.63 -12 59 21.0 u H21
2013-09-05 07:26:31 C 23 46 06.53 -13 56 48.1 o 291
2013-09-05 07:30:28 C 23 46 06.20 -13 56 52.8 o 291
2013-09-05 07:34:25 C 23 46 05.85 -13 56 57.9 o 291
2013-09-28 03:47:10 C 23 01 30.25 -23 00 25.0 u 807
2013-09-28 04:00:28 C 23 01 29.30 -23 00 34.6 u 807
2013-09-28 04:15:01 C 23 01 28.21 -23 00 44.1 u 807
2014-07-28 21:16:44 C 14 00 03.92 +28 07 23.4 t 950
2014-07-28 21:18:30 C 14 00 04.46 +28 07 19.1 t 950
2014-07-28 21:21:18 C 14 00 05.33 +28 07 12.4 t 950
2014-07-28 21:22:34 C 14 00 05.74 +28 07 09.1 t 950
2014-07-28 21:23:51 C 14 00 06.13 +28 07 06.0 t 950
2014-07-28 21:25:07 C 14 00 06.54 +28 07 02.9 t 950
2014-08-05 04:11:38 C 14 51 26.35 +20 36 41.1 o 291
2014-08-05 04:13:37 C 14 51 26.87 +20 36 36.1 o 291
2014-08-05 04:15:37 C 14 51 27.46 +20 36 30.2 o 291
2017-10-18 11:18:13 C 00 18 26.13 -28 56 22.1 U 474
2017-10-18 11:28:21 C 00 18 25.29 -28 56 26.9 U 474
2017-10-18 11:38:30 C 00 18 24.44 -28 56 32.9 U 474
2018-06-09 10:20:21 C 23 39 25.51 +43 11 15.5 o 291
2018-06-09 10:24:29 C 23 39 25.05 +43 11 12.7 o 291
2018-06-09 10:28:38 C 23 39 24.65 +43 11 09.8 o 291
2018-07-05 07:41:40 C 22 41 29.58 +33 32 44.5 U G96
2018-07-05 07:48:36 C 22 41 28.84 +33 32 36.1 U G96
2018-07-05 07:55:31 C 22 41 28.05 +33 32 27.8 U G96
2018-07-05 08:02:25 C 22 41 27.25 +33 32 19.8 U G96
2021-10-02 12:55:54 C 03 08 22.291 -20 30 51.13 U F51
2021-10-02 13:12:15 C 03 08 21.756 -20 31 15.54 U F51
2021-10-02 13:28:36 C 03 08 21.196 -20 31 39.54 U F51
2021-10-02 14:20:22 C 03 08 19.442 -20 32 55.97 U F51
2022-07-29 13:05:19 C 23 57 01.235 +03 18 55.27 U F52
2022-07-29 13:22:44 C 23 57 00.642 +03 18 40.48 U F52
2022-07-29 13:40:09 C 23 57 00.049 +03 18 25.51 U F52
2022-09-03 10:34:41 C 22 58 49.430 -13 37 01.34 U F52
2022-09-03 10:50:11 C 22 58 48.004 -13 37 20.39 U F52
2022-09-03 11:05:41 C 22 58 46.591 -13 37 39.64 U F52
2025-09-29 08:23:50 C 05 38 36.010 -11 05 32.90 V 807