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
2023-02-22 21:56:26 C 08 16 26.669 -18 14 17.16 V M22
2023-02-22 22:23:36 C 08 16 24.857 -18 10 36.37 V M22
2023-02-22 22:48:53 C 08 16 23.172 -18 07 10.56 V M22
2023-02-23 04:28:55 C 08 16 04.889 -17 21 30.06 V W68
2023-02-23 04:47:47 C 08 16 03.674 -17 18 58.10 V W68
2023-02-23 05:28:55 C 08 16 01.039 -17 13 27.16 V W68
2023-02-23 05:43:26 C 08 16 00.144 -17 11 30.16 V W68
2023-02-24 01:39:33 C 08 15 02.734 -14 34 43.36 V W68
2023-02-24 01:42:09 C 08 15 02.578 -14 34 23.38 V W68
2023-02-24 02:04:04 C 08 15 01.277 -14 31 34.39 V W68
2023-02-27 04:06:39 C 08 12 11.930 -05 43 32.12 V W68
2023-02-27 04:11:11 C 08 12 11.741 -05 43 02.28 V W68
2023-02-27 04:24:49 C 08 12 11.213 -05 41 33.25 V W68
2023-02-27 05:00:39 C 08 12 09.835 -05 37 39.07 V W68
2023-02-28 20:53:42 C 08 11 12.082 -01 30 27.97 V M22
2023-02-28 20:58:16 C 08 11 11.940 -01 30 01.37 V M22
2023-02-28 21:08:22 C 08 11 11.647 -01 29 02.00 V M22
2023-02-28 21:22:42 C 08 11 11.191 -01 27 37.48 V M22
2023-03-02 01:45:37 C 08 10 41.729 +01 12 46.94 V W68
2023-03-02 01:50:09 C 08 10 41.630 +01 13 11.71 V W68
2023-03-02 01:54:42 C 08 10 41.498 +01 13 36.12 V W68
2023-03-02 02:45:24 C 08 10 40.253 +01 18 11.63 V W68
2023-03-03 19:02:54 B 08 10 13.002 +04 44 00.00 X B72
2023-03-03 19:06:45 B 08 10 12.957 +04 44 18.06 X B72
2023-03-03 20:01:11 C 08 10 11.68 +04 48 43.1 M32
2023-03-03 20:12:38 C 08 10 11.53 +04 49 38.6 M32
2023-03-03 20:16:29 C 08 10 11.46 +04 49 57.2 M32
2023-03-03 20:20:21 C 08 10 11.41 +04 50 16.1 M32
2023-03-07 00:49:31 C 08 10 00.69 +10 21 57.2 V W46
2023-03-07 01:15:25 C 08 10 00.56 +10 23 37.9 V W46
2023-03-07 01:37:43 C 08 10 00.42 +10 25 04.1 V W46
2023-03-07 03:38:16 C 08 09 59.609 +10 33 25.52 V W68
2023-03-07 03:42:49 C 08 09 59.585 +10 33 42.19 V W68
2023-03-07 03:51:54 C 08 09 59.398 +10 34 15.82 V W68
2023-03-07 04:06:52 C 08 09 59.460 +10 35 14.03 V W68
2023-03-09 06:55:00 C 08 10 18.534 +13 36 14.22 V 703
2023-03-09 07:03:29 C 08 10 18.563 +13 36 41.72 V 703
2023-03-09 07:11:58 C 08 10 18.595 +13 37 09.70 V 703
2023-03-09 07:20:26 C 08 10 18.649 +13 37 38.28 V 703
2023-03-09 21:00:57 C 08 10 27.602 +14 22 39.72 V M22
2023-03-09 21:21:20 C 08 10 27.660 +14 23 44.92 V M22
2023-03-09 21:29:08 C 08 10 27.718 +14 24 09.04 V M22
2023-03-09 21:33:41 C 08 10 27.742 +14 24 23.98 V M22
2023-03-11 06:33:09 C 08 10 52.853 +16 04 11.96 V 703
2023-03-11 06:48:16 C 08 10 53.022 +16 04 55.45 V 703
2023-03-11 06:55:49 C 08 10 53.054 +16 05 17.09 V 703
2023-03-11 14:55:46 C 08 11 00.53 +16 28 12.9 V D29
2023-03-11 15:10:48 C 08 11 00.66 +16 28 55.7 V D29
2023-03-11 15:25:50 C 08 11 00.78 +16 29 38.6 V D29
2023-03-12 12:37:19 C 08 11 22.91 +17 27 53.7 V D29