307918 (2004 EU9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5052363954 ± 4.18e-08
Semi-major axis (a)0.8804520982 AU ± 5.72e-10
Inclination (i)28.58435208° ± 6.01e-06
Long. of Asc. Node (Ω)161.07845373° ± 2.92e-06
Arg. of Perihelion (ω)202.42572345° ± 5.96e-06
Mean Anomaly (M)215.48202538° ± 1.03e-05
Mean Motion (n)1.1930363523°/day ± 1.16e-09
Perihelion dist (q)0.43561565 AU ± 3.68e-08
Aphelion dist (Q)1.32528854 AU ± 3.68e-08
Orbital Period0.82614941 yr ± 8.06e-10
Physical Parameters
H (abs. magnitude)19.02
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.368″
Uncertainty0
Orbit TypeAten
MOID0.167618 AU
Observations Used530
Oppositions4
Arc Total2004-2024
First Observation Used2004-03-06
Last Observation Used2024-04-20
Observations (569)
Date Type RA Dec Mag Band Observatory
2019-04-21 05:56:01 C 12 17 29.71 +56 01 23.6 V G96
2019-04-21 06:03:36 C 12 17 28.34 +56 01 28.9 V G96
2019-04-21 06:11:10 C 12 17 27.08 +56 01 34.2 V G96
2019-04-23 05:45:13 C 12 09 43.92 +56 30 14.0 V G96
2019-04-23 05:52:44 C 12 09 42.59 +56 30 18.1 V G96
2019-04-23 06:00:14 C 12 09 41.36 +56 30 21.9 V G96
2019-04-23 06:07:45 C 12 09 40.14 +56 30 26.0 V G96
2019-04-27 06:28:28 C 11 55 03.41 +57 11 02.2 V 703
2019-04-27 06:36:10 C 11 55 02.28 +57 11 05.2 V 703
2019-04-27 06:43:52 C 11 55 01.18 +57 11 07.9 V 703
2019-04-27 06:51:34 C 11 54 59.94 +57 11 11.9 V 703
2023-02-02 23:34:20 C 10 29 38.244 -77 45 03.35 V M22
2023-02-02 23:36:59 C 10 29 35.767 -77 44 52.55 V M22
2023-02-02 23:41:32 C 10 29 31.166 -77 44 34.40 V M22
2023-02-03 00:02:06 C 10 29 10.670 -77 43 13.91 V M22
2023-02-03 16:28:06 C 10 14 29.662 -76 35 12.34 V Q62
2023-02-03 16:47:40 C 10 14 12.535 -76 33 46.94 V Q62
2023-02-03 17:08:24 C 10 13 54.691 -76 32 15.43 V Q62
2023-02-04 05:47:32 C 10 04 02.131 -75 35 57.80 Z W88
2023-02-04 05:53:13 C 10 03 57.679 -75 35 32.21 Z W88
2023-02-04 06:09:04 C 10 03 45.156 -75 34 18.84 Z W88
2023-02-04 12:34:54 C 09 59 11.388 -75 04 17.87 Z Q62
2023-02-04 12:46:29 C 09 59 02.856 -75 03 24.37 Z Q62
2023-02-04 12:57:29 C 09 58 54.698 -75 02 33.11 Z Q62
2023-02-04 13:07:50 C 09 58 47.021 -75 01 45.34 Z Q62
2023-02-04 13:20:03 C 09 58 38.038 -75 00 48.67 Z Q62
2023-02-05 06:44:09 C 09 47 04.447 -73 35 35.99 V W68
2023-02-05 07:21:51 C 09 46 40.116 -73 32 22.85 V W68
2023-02-05 07:27:06 C 09 46 36.612 -73 31 55.81 V W68
2023-02-05 07:36:29 C 09 46 30.590 -73 31 07.28 V W68
2023-02-09 04:32:42 C 09 05 11.618 -64 19 31.19 V W68
2023-02-09 05:20:29 C 09 04 55.051 -64 14 06.29 V W68
2023-02-09 05:25:02 C 09 04 53.467 -64 13 35.54 V W68
2023-02-09 05:32:51 C 09 04 50.743 -64 12 42.66 V W68
2023-02-11 22:23:21 C 08 47 43.841 -56 17 31.63 V M22
2023-02-11 22:28:32 C 08 47 42.648 -56 16 52.00 V M22
2023-02-11 23:14:07 C 08 47 31.697 -56 10 51.28 V M22
2023-02-11 23:26:41 C 08 47 28.699 -56 09 12.31 V M22
2023-02-13 06:26:15 C 08 41 16.958 -51 58 42.42 V W68
2023-02-13 06:30:45 C 08 41 16.075 -51 58 04.66 V W68
2023-02-13 06:48:23 C 08 41 12.593 -51 55 36.77 V W68
2023-02-17 03:30:36 C 08 27 47.530 -38 25 47.03 V W68
2023-02-17 03:35:14 C 08 27 46.932 -38 25 05.16 V W68
2023-02-17 03:55:55 C 08 27 44.227 -38 21 58.64 V W68
2023-02-17 04:14:25 C 08 27 41.815 -38 19 11.24 V W68
2023-02-20 03:31:39 C 08 20 53.990 -27 39 12.71 V W68
2023-02-20 03:36:11 C 08 20 53.568 -27 38 32.46 V W68
2023-02-20 04:10:59 C 08 20 50.309 -27 33 24.52 V W68
2023-02-20 04:22:13 C 08 20 49.270 -27 31 45.37 V W68
2023-02-22 21:51:54 C 08 16 26.986 -18 14 53.99 V M22