427621 (2003 UN12)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4032349031 ± 2.01e-08
Semi-major axis (a)2.1572673682 AU ± 1.22e-09
Inclination (i)6.89818760° ± 2.08e-06
Long. of Asc. Node (Ω)40.48289988° ± 1.90e-05
Arg. of Perihelion (ω)257.88670556° ± 2.00e-05
Mean Anomaly (M)37.81087505° ± 2.50e-06
Mean Motion (n)0.3110687005°/day ± 2.64e-10
Perihelion dist (q)1.28738187 AU ± 4.34e-08
Aphelion dist (Q)3.02715287 AU ± 4.35e-08
Orbital Period3.16851641 yr ± 2.69e-09
Physical Parameters
H (abs. magnitude)18.33
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.275″
Uncertainty0
Orbit TypeAmor
MOID0.300979 AU
Observations Used377
Oppositions15
Arc Total2003-2025
First Observation Used2003-10-21
Last Observation Used2025-11-10
Observations (388)
Date Type RA Dec Mag Band Observatory
2025-09-02 21:18:34 C 21 05 05.035 -39 32 01.79 V M22
2025-09-02 21:25:53 C 21 05 05.340 -39 31 53.65 V M22
2025-09-02 22:17:15 C 21 05 07.853 -39 30 59.15 V M22
2025-09-10 08:54:29 C 21 15 16.195 -36 19 53.87 V T05
2025-09-10 08:58:24 C 21 15 16.390 -36 19 48.00 V T05
2025-09-10 09:12:20 C 21 15 17.102 -36 19 34.75 V T05
2025-09-10 09:29:26 C 21 15 17.983 -36 19 16.03 V T05
2025-09-10 21:28:21 C 21 15 59.566 -36 06 03.46 V M22
2025-09-10 21:32:44 C 21 15 59.772 -36 05 58.24 V M22
2025-09-10 21:41:13 C 21 16 00.218 -36 05 49.52 V M22
2025-09-10 22:00:33 C 21 16 01.219 -36 05 28.86 V M22
2025-09-13 21:04:13 C 21 20 09.317 -34 48 36.47 V M22
2025-09-13 21:08:57 C 21 20 09.535 -34 48 31.57 V M22
2025-09-13 21:16:15 C 21 20 09.907 -34 48 23.54 V M22
2025-09-13 21:34:41 C 21 20 10.954 -34 48 03.31 V M22
2025-09-15 08:44:44 C 21 22 14.914 -34 10 18.12 V T05
2025-09-15 08:48:40 C 21 22 14.998 -34 10 12.90 V T05
2025-09-15 08:57:17 C 21 22 15.542 -34 10 04.30 V T05
2025-09-15 09:11:42 C 21 22 16.301 -34 09 48.78 V T05
2025-09-18 03:50:48 C 21 26 12.847 -32 57 46.08 V W68
2025-09-18 03:54:56 C 21 26 13.102 -32 57 41.80 V W68
2025-09-18 04:02:51 C 21 26 13.488 -32 57 33.62 V W68
2025-09-18 04:53:03 C 21 26 16.224 -32 56 38.58 V W68
2025-09-22 20:52:30 C 21 33 01.054 -30 57 09.86 V M22
2025-09-22 20:57:43 C 21 33 01.344 -30 57 03.56 V M22
2025-09-22 21:06:55 C 21 33 01.838 -30 56 54.53 V M22
2025-09-22 21:22:17 C 21 33 02.722 -30 56 38.29 V M22
2025-09-24 02:16:45 C 21 34 48.758 -30 26 06.97 V W68
2025-09-24 02:23:27 C 21 34 49.066 -30 26 00.24 V W68
2025-09-24 02:27:33 C 21 34 49.385 -30 25 55.70 V W68
2025-09-24 02:41:43 C 21 34 50.239 -30 25 41.20 V W68
2025-09-25 20:10:13 C 21 37 22.966 -29 42 07.88 V M22
2025-09-25 20:14:28 C 21 37 23.208 -29 42 03.17 V M22
2025-09-25 20:22:05 C 21 37 23.604 -29 41 55.68 V M22
2025-09-25 20:38:58 C 21 37 24.622 -29 41 37.14 V M22
2025-11-10 05:02:57 C 22 48 54.623 -13 11 10.85 X F51
2025-11-10 05:39:00 C 22 48 57.008 -13 10 43.07 X F51
2025-11-10 05:56:56 C 22 48 58.201 -13 10 28.93 X F51