2003 UM3

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4406469736 ± 2.00e+00
Semi-major axis (a)1.3707021586 AU
Inclination (i)1.50006355° ± 4.00e+00
Long. of Asc. Node (Ω)17.43005102° ± 5.00e+00
Arg. of Perihelion (ω)284.95661572° ± 6.00e+00
Mean Anomaly (M)310.01001216°
Mean Motion (n)0.6141709200°/day
Perihelion dist (q)0.76669980 AU
Aphelion dist (Q)1.97470520 AU
Orbital Period1.60477740 yr
Physical Parameters
H (abs. magnitude)28.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.382″
Uncertainty
Orbit TypeApollo
MOID0.000540 AU
Observations Used12
Oppositions1
Arc Total2003-2003
First Observation Used
Last Observation Used2003-10-18
Observations (12)
Date Type RA Dec Mag Band Observatory
2003-10-17 07:22:23 C 01 16 10.54 +12 25 29.2 c 691
2003-10-17 08:18:36 C 01 16 12.26 +12 25 45.7 c 691
2003-10-17 08:56:42 C 01 16 13.53 +12 25 55.0 c 691
2003-10-17 09:59:18 C 01 16 16.00 +12 26 09.2 d 291
2003-10-17 10:05:12 C 01 16 16.34 +12 26 09.7 d 291
2003-10-17 10:10:53 C 01 16 16.53 +12 26 11.7 d 291
2003-10-18 06:44:00 C 01 17 54.94 +12 31 58.7 d 291
2003-10-18 07:02:42 C 01 17 55.22 +12 32 02.9 d 291
2003-10-18 07:10:15 C 01 17 55.32 +12 32 04.7 d 291
2003-10-18 07:22:21 C 01 17 55.45 +12 32 08.1 d 291
2003-10-18 07:28:17 C 01 17 55.54 +12 32 09.4 d 291
2003-10-18 07:37:37 C 01 17 55.64 +12 32 10.8 d 291