678976 (2018 EH4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6125149538 ± 2.21e-08
Semi-major axis (a)2.0603463534 AU ± 6.39e-09
Inclination (i)6.18590425° ± 1.38e-05
Long. of Asc. Node (Ω)2.80405562° ± 5.04e-05
Arg. of Perihelion (ω)75.27445494° ± 4.76e-05
Mean Anomaly (M)237.66850551° ± 6.64e-06
Mean Motion (n)0.3332743777°/day ± 1.55e-09
Perihelion dist (q)0.79835340 AU ± 4.56e-08
Aphelion dist (Q)3.32233930 AU ± 4.67e-08
Orbital Period2.95740192 yr ± 1.38e-08
Physical Parameters
H (abs. magnitude)21.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.251″
Uncertainty0
Orbit TypeApollo
MOID0.023882 AU
Observations Used120
Oppositions6
Arc Total2015-2024
First Observation Used2015-04-10
Last Observation Used2024-03-17
Observations (129)
Date Type RA Dec Mag Band Observatory
2021-02-22 14:00:38 C 12 32 11.15 +12 43 37.8 V T05
2021-02-22 14:04:23 C 12 32 10.228 +12 43 35.22 U F51
2021-02-22 14:11:47 C 12 32 08.518 +12 43 29.06 U F51
2021-02-22 14:20:46 C 12 32 06.461 +12 43 21.58 U F51
2021-02-22 14:28:11 C 12 32 04.764 +12 43 15.43 U F51
2021-02-22 14:33:27 C 12 32 03.55 +12 43 11.5 V T05
2021-02-22 14:37:11 C 12 32 02.698 +12 43 07.94 U F51
2021-02-22 14:44:35 C 12 32 01.012 +12 43 01.77 U F51
2021-03-06 08:11:15 C 11 45 26.54 +09 40 17.0 V G96
2021-03-06 08:18:42 C 11 45 25.48 +09 40 13.2 V G96
2021-03-06 08:26:08 C 11 45 24.53 +09 40 09.2 V G96
2021-03-06 08:33:33 C 11 45 23.56 +09 40 05.4 V G96
2021-03-13 16:01:35 C 11 27 29.93 +08 22 00.0 q D29
2021-03-13 16:21:57 C 11 27 28.11 +08 21 52.7 q D29
2021-03-15 08:10:56 C 11 24 18.828 +08 06 42.60 U F52
2021-03-15 08:28:32 C 11 24 17.394 +08 06 36.24 U F52
2021-03-15 09:03:40 C 11 24 14.524 +08 06 23.27 U F52
2023-08-20 09:33:12 C 22 27 12.240 -19 38 26.20 X F52
2023-08-20 09:47:51 C 22 27 11.153 -19 38 31.76 X F52
2023-08-20 10:02:30 C 22 27 10.072 -19 38 37.45 X F52
2023-09-09 08:12:50 C 21 41 37.619 -22 19 11.31 X F52
2023-09-09 08:28:28 C 21 41 35.736 -22 19 15.08 X F52
2023-09-09 08:44:05 C 21 41 33.879 -22 19 18.75 X F52
2024-03-16 07:04:57 C 12 53 47.40 -05 37 21.6 V H21
2024-03-16 07:15:21 C 12 53 46.29 -05 37 19.6 V H21
2024-03-17 11:30:01 C 12 50 53.829 -05 30 21.89 X F51
2024-03-17 11:49:54 C 12 50 51.739 -05 30 16.78 X F51
2024-03-17 12:09:50 C 12 50 49.626 -05 30 12.05 X F51
2024-03-17 12:29:44 C 12 50 47.548 -05 30 06.94 X F51