414990 (2011 EM51)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3352098485 ± 2.17e-08
Semi-major axis (a)1.3214754275 AU ± 2.01e-09
Inclination (i)1.86470160° ± 1.95e-06
Long. of Asc. Node (Ω)134.14661157° ± 1.07e-04
Arg. of Perihelion (ω)142.28664846° ± 1.06e-04
Mean Anomaly (M)185.00843238° ± 1.12e-05
Mean Motion (n)0.6488191180°/day ± 1.48e-09
Perihelion dist (q)0.87850385 AU ± 2.87e-08
Aphelion dist (Q)1.76444701 AU ± 2.88e-08
Orbital Period1.51910795 yr ± 3.47e-09
Physical Parameters
H (abs. magnitude)21.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.330″
Uncertainty0
Orbit TypeApollo
MOID0.013195 AU
Observations Used270
Oppositions3
Arc Total2011-2020
First Observation Used2011-03-10
Last Observation Used2020-10-11
Observations (273)
Date Type RA Dec Mag Band Observatory
2017-09-29 12:43:25 C 01 27 52.471 -00 53 40.05 L F51
2017-09-29 13:00:10 C 01 27 50.302 -00 53 47.82 L F51
2017-10-17 06:11:37 C 00 51 54.13 -02 37 56.0 U G96
2017-10-17 06:19:16 C 00 51 53.66 -02 37 57.0 U G96
2017-10-17 06:26:46 C 00 51 53.20 -02 37 56.9 U G96
2017-10-17 06:34:28 C 00 51 52.74 -02 37 57.4 U G96
2017-10-22 09:18:57 C 00 46 17.606 -02 38 53.61 L F51
2017-10-22 10:01:15 C 00 46 15.711 -02 38 52.12 L F51
2017-10-22 10:22:20 C 00 46 14.759 -02 38 51.35 L F51
2017-10-25 05:53:53 C 00 43 59.82 -02 35 03.9 U G96
2017-10-25 06:05:30 C 00 43 59.39 -02 35 03.6 U G96
2017-10-25 06:13:04 C 00 43 59.11 -02 35 02.7 U G96
2017-10-25 06:20:39 C 00 43 58.88 -02 35 01.4 U G96
2020-10-08 06:43:37 C 21 50 33.306 -20 21 05.36 U F51
2020-10-08 07:00:43 C 21 50 36.353 -20 20 45.31 U F51
2020-10-08 07:17:50 C 21 50 39.403 -20 20 25.15 U F51
2020-10-10 04:22:21 C 21 58 49.21 -19 28 24.4 V G96
2020-10-10 04:29:45 C 21 58 50.44 -19 28 15.8 V G96
2020-10-10 04:37:10 C 21 58 51.68 -19 28 07.6 V G96
2020-10-10 04:44:37 C 21 58 52.90 -19 27 59.2 V G96
2020-10-11 05:49:58 C 22 03 10.079 -18 59 50.62 U F51
2020-10-11 06:09:36 C 22 03 13.162 -18 59 29.33 U F51
2020-10-11 06:29:11 C 22 03 16.230 -18 59 08.02 U F51