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
2010-04-20 10:38:39 C 11 26 52.90 -21 34 17.4 r E12
2010-04-20 10:51:29 C 11 26 52.80 -21 34 07.8 r E12
2010-04-21 21:57:43 C 11 27 00.66 -21 08 50.6 v 204
2013-08-02 01:01:55 C 01 23 36.95 +22 14 18.2 v 461
2013-08-02 01:09:57 C 01 23 38.16 +22 14 31.7 v 461
2013-08-02 01:17:59 C 01 23 39.40 +22 14 44.8 v 461
2013-08-03 00:38:16 C 01 27 19.16 +22 53 14.3 v 461
2013-08-03 00:46:17 C 01 27 20.43 +22 53 27.5 v 461
2013-08-03 00:54:20 C 01 27 21.71 +22 53 41.1 v 461
2013-08-05 01:27:17 C 01 35 23.44 +24 16 21.8 t 204
2013-08-05 01:47:13 C 01 35 26.80 +24 16 56.4 t 204
2013-08-05 02:07:20 C 01 35 30.22 +24 17 31.3 t 204
2014-04-28 03:26:40 C 14 23 16.65 -32 09 51.4 L W84
2014-04-28 03:31:26 C 14 23 16.31 -32 09 49.6 L W84
2014-04-28 03:41:08 C 14 23 15.63 -32 09 46.0 L W84
2014-04-28 03:46:03 C 14 23 15.29 -32 09 44.1 L W84
2014-04-29 03:18:31 C 14 21 39.41 -32 00 47.3 L W84
2014-04-29 03:23:11 C 14 21 39.08 -32 00 45.6 L W84
2014-04-29 03:27:51 C 14 21 38.76 -32 00 43.7 L W84
2014-04-29 03:32:30 C 14 21 38.44 -32 00 42.0 L W84
2014-04-29 03:37:11 C 14 21 38.12 -32 00 40.2 L W84
2014-05-02 03:35:01 C 14 16 52.35 -31 32 13.7 L W84
2014-05-02 03:39:39 C 14 16 52.04 -31 32 11.8 L W84
2014-05-02 03:44:18 C 14 16 51.73 -31 32 09.9 L W84
2014-05-02 03:48:59 C 14 16 51.41 -31 32 08.0 L W84
2014-05-02 03:53:41 C 14 16 51.10 -31 32 06.2 L W84
2024-08-08 09:03:10 C 20 09 36.851 -17 33 15.85 X F52
2024-08-08 09:20:17 C 20 09 35.687 -17 33 17.10 X F52
2024-08-08 09:37:23 C 20 09 34.508 -17 33 18.63 X F52
2024-08-08 09:54:31 C 20 09 33.346 -17 33 20.11 X F52
2025-03-19 02:59:14 C 03 38 22.300 +13 08 19.20 V I52
2025-03-19 03:00:31 C 03 38 22.776 +13 08 19.14 V I52
2025-03-19 03:01:48 C 03 38 23.136 +13 08 18.85 V I52
2025-03-19 03:03:06 C 03 38 23.669 +13 08 20.00 V I52
2025-04-26 03:02:56 C 08 21 22.288 +02 47 15.68 V G96
2025-04-26 03:11:09 C 08 21 24.008 +02 47 10.10 V G96
2025-04-26 03:19:22 C 08 21 25.758 +02 47 03.19 V G96
2025-04-26 03:27:33 C 08 21 27.439 +02 46 58.15 V G96
2025-05-22 03:33:09 C 10 01 42.532 -03 12 20.02 V G96
2025-05-22 03:41:25 C 10 01 43.561 -03 12 23.40 V G96
2025-05-22 03:49:40 C 10 01 44.576 -03 12 27.76 V G96
2025-05-22 03:57:54 C 10 01 45.574 -03 12 31.57 V G96