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
2004-03-21 23:32:35 C 08 20 08.05 +25 33 49.2 r J95
2004-03-21 23:39:52 C 08 20 08.34 +25 33 58.7 r J95
2004-03-25 02:45:29 C 08 22 58.71 +27 08 18.2 19.1 c 704
2004-03-25 02:45:45 C 08 22 58.80 +27 08 18.3 19.3 c 704
2004-03-25 03:00:34 C 08 22 59.27 +27 08 35.4 19.6 c 704
2004-03-25 03:00:48 C 08 22 59.22 +27 08 35.7 19.6 c 704
2004-03-25 03:01:01 C 08 22 59.27 +27 08 36.3 19.5 c 704
2004-03-25 03:01:45 C 08 22 59.29 +27 08 37.1 19.6 c 704
2004-03-25 03:16:09 C 08 22 59.85 +27 08 53.4 19.6 c 704
2004-03-25 03:16:22 C 08 22 59.81 +27 08 53.7 19.0 c 704
2004-03-25 03:16:36 C 08 22 59.79 +27 08 54.3 19.3 c 704
2004-03-25 03:17:38 C 08 22 59.88 +27 08 55.7 19.4 c 704
2004-03-25 03:31:24 C 08 23 00.33 +27 09 11.7 19.6 c 704
2004-03-25 03:31:38 C 08 23 00.31 +27 09 10.7 19.4 c 704
2004-03-25 03:31:51 C 08 23 00.35 +27 09 11.4 19.1 c 704
2004-03-25 03:33:36 C 08 23 00.42 +27 09 13.2 19.4 c 704
2004-03-25 03:47:20 C 08 23 00.79 +27 09 30.3 19.8 c 704
2004-03-25 03:47:33 C 08 23 00.92 +27 09 29.4 19.3 c 704
2004-03-25 03:49:31 C 08 23 00.99 +27 09 31.2 19.5 c 704
2004-04-13 04:08:17 C 08 46 21.18 +32 15 17.2 r 448
2004-04-13 04:23:14 C 08 46 21.99 +32 15 22.3 r 448
2004-04-13 04:43:01 C 08 46 23.10 +32 15 28.8 r 448
2004-04-14 04:09:03 C 08 47 47.97 +32 23 10.5 o 696
2004-04-14 04:13:28 C 08 47 48.23 +32 23 12.1 o 696
2004-04-25 02:45:34 C 09 04 39.95 +33 16 48.8 r 715
2004-04-25 02:56:18 C 09 04 40.72 +33 16 50.2 r 715
2004-04-25 03:07:05 C 09 04 41.34 +33 16 51.4 r 715
2004-12-10 12:31:17 C 12 57 25.32 -14 55 18.3 d 291
2004-12-10 12:36:57 C 12 57 25.81 -14 55 19.0 d 291
2004-12-10 12:42:39 C 12 57 26.33 -14 55 16.6 d 291
2005-02-21 13:02:08 C 15 15 45.55 +02 44 09.8 F65
2005-02-21 13:03:39 C 15 15 45.63 +02 44 12.3 F65
2005-02-21 13:05:25 C 15 15 45.72 +02 44 14.8 F65
2005-02-21 13:06:45 C 15 15 45.81 +02 44 17.0 F65
2005-04-02 09:51:46 C 15 42 22.43 +42 37 23.8 r 448
2005-04-02 10:02:15 C 15 42 22.10 +42 37 56.7 r 448
2005-04-02 10:12:42 C 15 42 21.76 +42 38 28.7 r 448
2005-04-03 20:08:28 C 15 41 30.06 +44 21 48.4 r A17
2005-04-03 21:01:41 C 15 41 28.46 +44 24 32.5 r A17
2005-04-03 21:41:57 C 15 41 27.22 +44 26 36.0 r A17
2005-05-07 22:06:43 C 13 31 09.57 +74 19 51.9 o 493
2005-05-07 22:09:41 C 13 31 08.46 +74 19 55.0 o 493
2005-05-07 22:12:40 C 13 31 07.24 +74 19 58.5 o 493
2009-01-31 18:35:15 C 13 14 17.62 -34 07 33.1 r E12
2009-02-19 06:46:56 C 12 11 34.25 -10 55 46.6 r H45
2009-02-19 06:49:14 C 12 11 33.81 -10 55 36.8 r H45
2009-02-19 06:51:03 C 12 11 33.47 -10 55 28.8 r H45
2009-02-19 06:52:28 C 12 11 33.20 -10 55 23.0 r H45
2009-02-19 06:54:49 C 12 11 32.76 -10 55 12.5 r H45
2009-02-19 06:55:54 C 12 11 32.55 -10 55 07.4 r H45