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
2024-03-20 10:40:52 C 15 41 06.583 +27 13 34.03 V 703
2024-03-20 10:47:28 C 15 41 06.644 +27 13 52.97 V 703
2024-03-20 10:50:46 C 15 41 06.817 +27 14 01.07 V 703
2024-03-28 11:27:19 C 15 41 58.016 +36 51 56.20 V 703
2024-03-28 11:30:40 C 15 41 57.973 +36 52 06.92 V 703
2024-03-28 11:34:01 C 15 41 57.973 +36 52 17.62 V 703
2024-03-28 11:37:21 C 15 41 57.865 +36 52 27.80 V 703
2024-04-05 11:08:12 C 15 37 32.131 +46 37 17.18 V T08
2024-04-05 11:18:19 C 15 37 31.687 +46 37 47.03 V T08
2024-04-05 11:36:30 C 15 37 30.787 +46 38 42.18 V T08
2024-04-11 09:54:50 C 15 29 26.869 +53 30 41.94 V 703
2024-04-11 09:58:15 C 15 29 26.488 +53 30 50.62 V 703
2024-04-11 10:05:04 C 15 29 26.225 +53 31 09.16 V 703
2024-04-13 08:47:26 C 15 25 41.902 +55 38 34.48 V G96
2024-04-13 08:54:54 C 15 25 41.171 +55 38 54.56 V G96
2024-04-13 09:02:21 C 15 25 40.454 +55 39 14.62 V G96
2024-04-13 09:09:50 C 15 25 39.767 +55 39 34.70 V G96
2024-04-20 07:28:29 C 15 06 51.595 +62 31 51.71 V 703
2024-04-20 07:39:07 C 15 06 49.910 +62 32 18.17 V 703