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
2015-04-10 07:11:14 C 08 24 45.590 +22 08 19.00 V F51
2015-04-10 07:28:15 C 08 24 48.674 +22 08 00.85 V F51
2015-04-10 08:02:14 C 08 24 54.700 +22 07 25.69 V F51
2018-03-02 07:56:46 C 07 34 41.163 +39 38 18.93 U F51
2018-03-02 08:14:03 C 07 34 48.772 +39 37 19.41 U F51
2018-03-02 08:31:23 C 07 34 56.398 +39 36 19.14 U F51
2018-03-13 04:42:48 C 08 49 43.37 +27 22 07.5 U G96
2018-03-13 04:50:14 C 08 49 44.66 +27 21 51.2 U G96
2018-03-13 04:57:42 C 08 49 45.94 +27 21 34.8 U G96
2018-03-13 05:05:09 C 08 49 47.21 +27 21 18.9 U G96
2018-03-13 20:18:39 C 08 52 29.10 +26 48 48.2 U 204
2018-03-13 20:39:56 C 08 52 32.64 +26 48 04.1 U 204
2018-03-13 20:45:25 C 08 52 34.39 +26 47 59.6 U J04
2018-03-13 20:48:41 C 08 52 34.94 +26 47 53.1 U J04
2018-03-13 20:51:57 C 08 52 35.45 +26 47 46.5 U J04
2018-03-13 20:59:21 C 08 52 35.90 +26 47 23.2 U 204
2018-03-13 21:54:59 C 08 52 45.44 +26 45 24.4 U J95
2018-03-13 22:05:54 C 08 52 47.24 +26 45 00.8 U J95
2018-03-13 22:11:21 C 08 52 47.62 +26 44 50.9 o K88
2018-03-13 22:17:59 C 08 52 48.72 +26 44 37.0 o K88
2018-03-13 22:24:37 C 08 52 49.84 +26 44 23.2 o K88
2018-03-14 02:49:01 C 08 53 36.83 +26 35 21.1 U I52
2018-03-14 02:50:07 C 08 53 36.99 +26 35 19.1 U I52
2018-03-14 02:51:12 C 08 53 37.19 +26 35 16.9 U I52
2018-03-14 02:52:18 C 08 53 37.35 +26 35 14.8 U I52
2018-03-14 03:12:59 C 08 53 40.25 +26 34 29.6 q 734
2018-03-14 03:17:42 C 08 53 41.05 +26 34 19.9 q 734
2018-03-14 03:28:46 C 08 53 42.63 +26 33 57.2 u H21
2018-03-14 03:31:51 C 08 53 43.42 +26 33 51.0 q 734
2018-03-14 03:36:55 C 08 53 43.94 +26 33 40.5 u H21
2018-03-14 03:50:59 C 08 53 46.22 +26 33 11.3 u H21
2018-03-14 14:07:29 C 08 55 29.07 +26 12 13.3 r P93
2018-03-14 14:14:28 C 08 55 30.08 +26 12 00.6 r P93
2018-03-14 14:21:28 C 08 55 31.26 +26 11 46.0 r P93
2018-03-14 19:32:43 C 08 56 23.68 +26 01 15.8 U 587
2018-03-14 19:35:44 C 08 56 24.13 +26 01 10.2 U 587
2018-03-14 19:41:49 C 08 56 25.06 +26 00 58.2 U 587
2018-03-14 20:15:12 C 08 56 30.17 +25 59 52.6 U K51
2018-03-14 20:19:46 C 08 56 30.87 +25 59 43.1 U K51
2018-03-14 20:24:20 C 08 56 31.59 +25 59 34.3 U K51
2018-03-14 20:35:48 C 08 56 34.249 +25 59 18.71 U J04
2018-03-14 20:40:09 C 08 56 34.942 +25 59 10.44 U J04
2018-03-14 20:44:29 C 08 56 35.620 +25 59 01.39 U J04
2018-03-15 01:06:16 C 08 57 15.86 +25 50 08.0 S 033
2018-03-15 01:11:40 C 08 57 16.70 +25 49 57.3 S 033
2018-03-15 01:17:04 C 08 57 17.56 +25 49 46.3 S 033
2018-03-15 01:22:28 C 08 57 18.44 +25 49 35.6 S 033
2018-03-16 03:39:52 C 09 01 25.42 +24 59 17.9 V 691
2018-03-16 03:49:17 C 09 01 26.82 +24 59 00.8 V 691
2018-03-16 03:58:43 C 09 01 28.07 +24 58 43.2 V 691