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
2018-03-16 06:48:32 C 09 01 52.36 +24 53 24.9 U I52
2018-03-16 06:50:19 C 09 01 52.62 +24 53 21.6 U I52
2018-03-16 06:52:06 C 09 01 52.86 +24 53 18.2 U I52
2018-03-16 06:53:53 C 09 01 53.13 +24 53 14.4 U I52
2018-03-18 06:00:53 C 09 08 35.087 +23 29 43.38 U F51
2018-03-18 06:18:06 C 09 08 37.286 +23 29 14.35 U F51
2018-03-18 06:35:05 C 09 08 39.459 +23 28 46.01 U F51
2018-03-18 09:32:00 C 09 09 01.09 +23 23 36.5 U I52
2018-03-18 09:34:24 C 09 09 01.41 +23 23 32.2 U I52
2018-03-18 09:36:46 C 09 09 01.72 +23 23 29.1 U I52
2018-03-19 03:23:55 C 09 11 23.44 +22 54 09.9 U I52
2018-03-19 03:26:19 C 09 11 23.71 +22 54 05.8 U I52
2018-03-19 03:31:04 C 09 11 24.33 +22 53 58.8 U I52
2018-03-20 03:56:58 C 09 14 27.90 +22 15 10.3 U I52
2018-03-20 04:02:31 C 09 14 28.52 +22 15 01.3 U I52
2018-03-20 04:08:04 C 09 14 29.17 +22 14 52.7 U I52
2018-03-20 04:13:42 C 09 14 29.86 +22 14 44.3 U I52
2020-08-13 08:49:19 C 21 39 41.656 -24 03 18.64 V F51
2020-08-13 09:19:01 C 21 39 39.201 -24 03 29.28 V F51
2020-08-13 09:33:52 C 21 39 38.013 -24 03 34.18 V F51
2020-09-08 06:12:46 C 20 43 57.044 -26 15 26.92 V F51
2020-09-08 06:27:38 C 20 43 55.715 -26 15 27.38 V F51
2020-09-15 05:57:00 C 20 30 26.827 -26 09 37.92 V F51
2020-09-15 06:13:33 C 20 30 25.532 -26 09 35.89 V F51
2021-02-08 13:28:11 C 14 18 52.18 +18 21 06.2 V T08
2021-02-08 13:30:54 C 14 18 50.85 +18 21 03.6 V T08
2021-02-08 13:37:06 C 14 18 48.06 +18 20 57.3 V T08
2021-02-08 13:44:40 C 14 18 44.62 +18 20 50.3 V T08
2021-02-09 05:25:37 C 14 11 55.64 +18 03 53.7 V J04
2021-02-09 05:26:02 C 14 11 55.45 +18 03 53.1 V J04
2021-02-09 05:26:28 C 14 11 55.24 +18 03 52.5 V J04
2021-02-11 12:12:19 C 13 49 50.706 +17 04 06.33 U F52
2021-02-11 12:29:48 C 13 49 43.804 +17 03 47.91 U F52
2021-02-11 13:04:55 C 13 49 29.906 +17 03 10.63 U F52
2021-02-16 02:49:37 C 13 12 11.88 +15 06 04.5 V G40
2021-02-16 03:09:37 C 13 12 05.59 +15 05 44.7 V G40
2021-02-16 03:23:41 C 13 12 01.16 +15 05 30.9 V G40
2021-02-16 12:00:45 C 13 09 27.14 +14 56 55.4 V T08
2021-02-16 12:03:24 C 13 09 26.37 +14 56 51.9 V T08
2021-02-16 12:10:11 C 13 09 24.30 +14 56 46.0 V T08
2021-02-16 12:19:22 C 13 09 21.40 +14 56 36.2 V T08
2021-02-17 09:28:47 C 13 03 13.73 +14 35 25.1 V 703
2021-02-17 09:43:52 C 13 03 09.31 +14 35 10.3 V 703
2021-02-17 09:51:24 C 13 03 07.02 +14 35 02.8 V 703
2021-02-21 23:59:48 C 12 35 18.99 +12 54 51.5 V A17
2021-02-22 00:16:46 C 12 35 15.08 +12 54 37.4 V A17
2021-02-22 00:33:43 C 12 35 11.12 +12 54 24.0 V A17
2021-02-22 12:59:05 C 12 32 25.33 +12 44 28.5 V T05
2021-02-22 13:09:41 C 12 32 22.84 +12 44 19.4 V T05
2021-02-22 13:55:25 C 12 32 12.276 +12 43 42.62 U F51