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
2023-03-12 12:57:41 C 08 11 23.13 +17 28 48.0 V D29
2023-03-12 19:42:59 C 08 11 30.53 +17 46 32.1 V 130
2023-03-12 19:47:22 C 08 11 30.58 +17 46 44.1 V 130
2023-03-12 19:51:46 C 08 11 30.66 +17 46 55.3 V 130
2023-03-12 19:56:26 C 08 11 30.72 +17 47 07.5 V 130
2023-03-12 20:26:10 C 08 11 30.720 +17 48 58.28 V M22
2023-03-12 20:31:38 C 08 11 30.852 +17 49 14.34 V M22
2023-03-12 20:41:24 C 08 11 30.926 +17 49 38.89 V M22
2023-03-12 21:01:08 C 08 11 31.166 +17 50 29.29 V M22
2023-03-14 01:52:34 C 08 12 05.702 +19 02 45.74 V W68
2023-03-14 01:57:07 C 08 12 05.849 +19 02 56.80 V W68
2023-03-14 02:05:00 C 08 12 05.914 +19 03 15.80 V W68
2023-03-14 02:19:09 C 08 12 06.166 +19 03 49.07 V W68
2023-03-15 05:51:20 C 08 12 43.965 +20 07 13.31 U F51
2023-03-15 06:03:46 C 08 12 44.171 +20 07 41.17 U F51
2023-03-15 06:16:24 C 08 12 44.333 +20 08 09.82 U F51
2023-03-15 07:50:53 C 08 12 45.912 +20 11 39.62 V T05
2023-03-15 07:55:31 C 08 12 45.965 +20 11 50.06 V T05
2023-03-15 08:04:17 C 08 12 46.130 +20 12 09.36 V T05
2023-03-15 08:18:29 C 08 12 46.368 +20 12 40.32 V T05
2023-03-19 03:37:58 C 08 15 17.939 +23 11 56.44 V G96
2023-03-19 03:46:05 C 08 15 18.140 +23 12 10.62 V G96
2023-03-19 03:54:12 C 08 15 18.349 +23 12 24.41 V G96
2023-03-19 04:02:18 C 08 15 18.529 +23 12 38.70 V G96
2023-03-19 05:36:22 C 08 15 22.030 +23 15 25.96 V T05
2023-03-19 05:38:59 C 08 15 22.114 +23 15 29.99 V T05
2023-03-19 05:43:32 C 08 15 22.234 +23 15 37.94 V T05
2023-03-19 05:51:21 C 08 15 22.445 +23 15 51.59 V T05
2023-03-25 04:11:14 C 08 20 31.938 +26 41 02.58 V 703
2023-03-25 04:19:35 C 08 20 32.320 +26 41 12.19 V 703
2023-03-25 04:27:53 C 08 20 32.500 +26 41 21.16 V 703
2023-03-25 04:36:09 C 08 20 32.813 +26 41 31.74 V 703
2023-03-27 11:47:45 C 08 22 54.28 +27 43 00.5 V D29
2023-03-27 12:08:07 C 08 22 55.08 +27 43 21.9 V D29
2023-03-27 12:28:29 C 08 22 55.92 +27 43 43.2 V D29
2023-04-12 04:40:52 C 08 42 42.541 +31 54 37.87 V G96
2023-04-12 04:48:58 C 08 42 42.980 +31 54 41.04 V G96
2023-04-12 04:57:04 C 08 42 43.481 +31 54 44.17 V G96
2023-04-12 05:05:10 C 08 42 43.924 +31 54 47.16 V G96
2023-04-25 03:04:50 C 09 02 31.931 +33 10 12.54 V G96
2023-04-25 03:13:00 C 09 02 32.456 +33 10 13.84 V G96
2023-04-25 03:21:08 C 09 02 32.953 +33 10 14.99 V G96
2023-04-25 03:29:17 C 09 02 33.508 +33 10 15.67 V G96
2023-12-25 15:25:53 C 13 27 37.931 -14 10 00.32 X F52
2023-12-25 15:33:19 C 13 27 38.558 -14 09 58.67 X F52
2023-12-25 15:40:43 C 13 27 39.215 -14 09 57.31 X F52
2024-03-19 12:15:57 C 15 40 44.834 +26 09 05.62 V T08
2024-03-19 12:18:37 C 15 40 44.774 +26 09 13.18 V T08
2024-03-19 12:23:17 C 15 40 44.873 +26 09 26.21 V T08
2024-03-19 12:33:13 C 15 40 45.110 +26 09 55.48 V T08