2011 EF17

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7434663075 ± 3.87e-08
Semi-major axis (a)2.3426814836 AU ± 3.24e-08
Inclination (i)4.21824267° ± 1.13e-05
Long. of Asc. Node (Ω)3.80749217° ± 8.63e-05
Arg. of Perihelion (ω)282.44803786° ± 8.60e-05
Mean Anomaly (M)356.26436463° ± 2.25e-05
Mean Motion (n)0.2748795358°/day ± 5.71e-09
Perihelion dist (q)0.60097673 AU ± 9.11e-08
Aphelion dist (Q)4.08438624 AU ± 1.07e-07
Orbital Period3.58566628 yr ± 7.45e-08
Physical Parameters
H (abs. magnitude)19.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.331″
Uncertainty0
Orbit TypeApollo
MOID0.011309 AU
Observations Used71
Oppositions5
Arc Total2011-2018
First Observation Used2011-03-05
Last Observation Used2018-11-19
Observations (72)
Date Type RA Dec Mag Band Observatory
2011-09-21 13:55:12 C 05 18 18.200 +26 10 35.18 o 568
2011-10-01 08:33:22 C 04 56 04.85 +26 53 58.0 t H21
2011-10-01 08:43:32 C 04 56 03.74 +26 54 00.0 t H21
2011-10-01 08:52:08 C 04 56 02.79 +26 54 00.6 t H21
2011-10-01 09:00:45 C 04 56 01.87 +26 54 02.2 t H21
2011-10-19 09:15:07 C 04 03 34.45 +26 45 54.4 o 691
2011-10-19 09:40:49 C 04 03 30.96 +26 45 49.8 o 691
2011-10-19 10:06:29 C 04 03 27.51 +26 45 45.2 o 691
2011-10-23 08:11:45 C 03 51 08.67 +26 25 24.2 o 691
2011-10-23 08:37:22 C 03 51 05.21 +26 25 17.5 o 691
2011-10-23 09:03:00 C 03 51 01.85 +26 25 10.6 o 691
2011-10-27 07:02:55 C 03 38 55.68 +25 58 44.3 o 691
2011-10-27 07:28:31 C 03 38 52.34 +25 58 36.7 o 691
2011-10-27 07:54:07 C 03 38 48.98 +25 58 29.3 o 691
2011-11-02 06:36:31 C 03 21 23.87 +25 09 05.0 o 691
2011-11-02 07:02:09 C 03 21 20.79 +25 08 55.5 o 691
2011-11-02 07:32:45 C 03 21 17.13 +25 08 44.2 o 691
2011-11-15 07:49:34 C 02 50 01.933 +23 03 49.69 L F51
2011-11-15 08:07:19 C 02 50 00.407 +23 03 42.72 L F51
2018-11-19 01:31:24 C 20 50 42.47 -16 19 31.0 o 291
2018-11-19 01:48:20 C 20 50 47.68 -16 19 05.3 o 291
2018-11-19 02:05:15 C 20 50 52.89 -16 18 39.4 o 291