2010 EF21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7217058238 ± 4.14e-08
Semi-major axis (a)2.4175244013 AU ± 1.95e-08
Inclination (i)10.68881186° ± 7.51e-06
Long. of Asc. Node (Ω)298.95036128° ± 6.49e-05
Arg. of Perihelion (ω)145.78058449° ± 6.32e-05
Mean Anomaly (M)72.32380688° ± 4.87e-06
Mean Motion (n)0.2622140610°/day ± 3.17e-09
Perihelion dist (q)0.67278296 AU ± 1.00e-07
Aphelion dist (Q)4.16226584 AU ± 1.06e-07
Orbital Period3.75886129 yr ± 4.55e-08
Physical Parameters
H (abs. magnitude)18.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.263″
Uncertainty0
Orbit TypeApollo
MOID0.118059 AU
Observations Used83
Oppositions11
Arc Total2010-2025
First Observation Used2010-03-10
Last Observation Used2025-05-22
Observations (92)
Date Type RA Dec Mag Band Observatory
2010-02-20 08:39:27 S 15 11 21.125 -54 38 43.04 L C51
2010-02-20 08:39:38 S 15 11 21.014 -54 38 42.43 L C51
2010-02-20 10:14:48 S 15 10 22.970 -54 37 48.58 L C51
2010-02-20 11:50:09 S 15 09 24.982 -54 36 52.34 L C51
2010-02-20 13:25:19 S 15 08 27.295 -54 35 55.46 L C51
2010-02-20 13:25:30 S 15 08 27.204 -54 35 54.74 L C51
2010-03-10 15:38:00 C 12 30 27.44 -43 00 47.4 r E12
2010-03-10 15:49:51 C 12 30 25.03 -43 00 25.3 r E12
2010-03-10 16:01:44 C 12 30 22.63 -43 00 03.2 r E12
2010-03-10 16:21:52 C 12 30 18.57 -42 59 25.6 r E12
2010-03-10 16:22:34 C 12 30 18.40 -42 59 24.1 r E12
2010-03-10 16:23:16 C 12 30 18.27 -42 59 22.9 r E12
2010-03-10 16:23:57 C 12 30 18.14 -42 59 21.9 r E12
2010-03-10 18:48:25 C 12 29 49.26 -42 54 48.2 r E12
2010-03-11 16:25:14 C 12 25 48.85 -42 15 00.1 r E12
2010-03-11 16:25:58 C 12 25 48.72 -42 14 58.5 r E12
2010-03-11 16:26:25 C 12 25 48.88 -42 14 56.0 u D90
2010-03-11 16:26:39 C 12 25 48.61 -42 14 57.5 r E12
2010-03-11 16:27:21 C 12 25 48.46 -42 14 56.5 r E12
2010-03-11 16:28:03 C 12 25 48.35 -42 14 55.0 r E12
2010-03-11 16:38:19 C 12 25 46.75 -42 14 34.2 u D90
2010-03-11 16:41:37 C 12 25 46.08 -42 14 29.2 u D90
2010-03-11 16:44:57 C 12 25 45.46 -42 14 22.0 u D90
2010-03-11 17:20:59 C 12 25 38.69 -42 13 15.6 r D96
2010-03-11 17:40:05 C 12 25 35.00 -42 12 39.0 r D96
2010-03-11 17:59:40 C 12 25 31.37 -42 12 03.3 r D96
2010-03-12 10:00:00 C 12 22 44.23 -41 42 35.2 o 474
2010-03-12 10:01:56 C 12 22 43.90 -41 42 30.9 o 474
2010-03-12 10:04:49 C 12 22 43.39 -41 42 26.7 o 474
2010-03-12 10:07:50 C 12 22 42.85 -41 42 20.9 o 474
2010-03-19 15:02:36 C 11 58 29.37 -36 39 46.9 r E12
2010-03-19 15:20:11 C 11 58 27.30 -36 39 17.9 r E12
2010-03-19 15:37:48 C 11 58 25.23 -36 38 48.2 r E12
2010-03-19 15:55:21 C 11 58 23.16 -36 38 18.5 r E12
2010-03-24 08:19:18 C 11 47 35.88 -33 39 16.4 r I20
2010-03-24 08:39:52 C 11 47 34.15 -33 38 43.8 r I20
2010-03-24 09:01:35 C 11 47 32.31 -33 38 10.3 r I20
2010-03-28 03:49:06 C 11 40 59.86 -31 25 33.9 r I19
2010-03-28 03:52:32 C 11 40 59.60 -31 25 28.9 r I19
2010-03-28 03:55:07 C 11 40 59.42 -31 25 25.2 r I19
2010-04-01 03:09:07 C 11 35 45.92 -29 17 45.9 r I19
2010-04-01 03:14:52 C 11 35 45.62 -29 17 38.6 r I19
2010-04-01 03:20:00 C 11 35 45.39 -29 17 32.7 r I19
2010-04-09 05:03:58 C 11 29 14.00 -25 33 39.8 u 448
2010-04-09 05:17:21 C 11 29 13.76 -25 33 25.7 u 448
2010-04-09 05:30:46 C 11 29 13.39 -25 33 11.5 u 448
2010-04-11 05:27:05 C 11 28 18.51 -24 44 46.0 u 448
2010-04-11 05:37:45 C 11 28 18.27 -24 44 36.7 u 448
2010-04-11 05:45:23 C 11 28 18.10 -24 44 28.0 u 448
2010-04-20 10:25:56 C 11 26 52.90 -21 34 26.4 r E12