IAA RAS IAA Minor Planet Database

2023 UL9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3737636200 ± 8.22e-04
Semi-major axis (a)1.1713156045 AU ± 9.89e-04
Inclination (i)15.92795904° ± 3.43e-02
Long. of Asc. Node (Ω)27.40653566° ± 2.94e-03
Arg. of Perihelion (ω)266.23766696° ± 1.68e-02
Mean Anomaly (M)284.57745204° ± 8.57e-01
Mean Motion (n)0.7775017631°/day ± 9.85e-04
Perihelion dist (q)0.73352044 AU ± 1.14e-03
Aphelion dist (Q)1.60911076 AU ± 1.66e-03
Orbital Period1.26768366 yr ± 1.61e-03
Physical Parameters
H (abs. magnitude)25.79
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.251″
Uncertainty3
Orbit TypeApollo
MOID0.012106 AU
Observations Used18
Oppositions1
Arc Total2023-2023
First Observation Used2023-10-23
Last Observation Used2023-10-26
Observations (18)
Date Type RA Dec Mag Band Observatory
2023-10-23 06:57:40 C 02 44 41.647 +30 30 25.92 – V G96
2023-10-23 07:05:05 C 02 44 36.114 +30 30 58.03 – V G96
2023-10-23 07:12:30 C 02 44 30.556 +30 31 29.93 – V G96
2023-10-23 07:19:55 C 02 44 25.040 +30 32 02.29 – V G96
2023-10-23 07:50:06 C 02 44 01.850 +30 34 08.17 – V H01
2023-10-23 07:57:47 C 02 43 56.103 +30 34 40.81 – V H01
2023-10-23 08:11:59 C 02 43 45.527 +30 35 40.61 – V H01
2023-10-23 08:21:54 C 02 43 38.186 +30 36 21.89 – V H01
2023-10-23 09:36:22 C 02 42 43.636 +30 41 32.89 – V I52
2023-10-23 09:40:33 C 02 42 40.576 +30 41 49.92 – V I52
2023-10-23 09:44:46 C 02 42 37.472 +30 42 06.77 – V I52
2023-10-23 09:48:57 C 02 42 34.409 +30 42 23.65 – V I52
2023-10-24 05:27:48 C 02 29 48.13 +31 54 51.9 – u H21
2023-10-24 05:35:52 C 02 29 42.92 +31 55 19.1 – u H21
2023-10-24 05:39:53 C 02 29 40.29 +31 55 32.5 – u H21
2023-10-26 10:48:15 C 02 02 03.310 +34 05 59.10 – V I52
2023-10-26 10:58:16 C 02 01 58.740 +34 06 15.20 – V I52
2023-10-26 11:18:20 C 02 01 49.750 +34 06 47.20 – V I52