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
2009-04-18 08:28:26 C 13 31 54.12 -05 24 37.8 r G96
2009-04-19 07:02:43 C 13 30 36.39 -05 22 30.8 r G96
2009-04-19 07:12:50 C 13 30 35.78 -05 22 29.7 r G96
2009-04-19 07:23:02 C 13 30 35.17 -05 22 28.7 r G96
2009-04-19 07:33:07 C 13 30 34.56 -05 22 27.8 r G96
2009-04-19 07:47:28 C 13 30 33.68 -05 22 27.1 o 291
2009-04-19 07:53:05 C 13 30 33.43 -05 22 26.6 o 291
2009-04-19 07:58:42 C 13 30 33.08 -05 22 25.4 o 291
2009-04-20 05:37:19 C 13 29 18.20 -05 20 26.7 r G96
2009-04-20 05:40:10 C 13 29 18.02 -05 20 26.4 r G96
2009-04-20 05:43:00 C 13 29 17.84 -05 20 26.3 r G96
2009-04-20 05:45:52 C 13 29 17.66 -05 20 26.0 r G96
2009-04-21 21:22:27 C 13 26 59.23 -05 16 59.8 r J75
2009-04-21 21:44:15 C 13 26 57.94 -05 16 57.6 r J75
2009-04-21 22:04:46 C 13 26 56.67 -05 16 56.2 r J75
2009-04-24 04:58:53 C 13 23 43.83 -05 12 34.0 r G96
2009-04-24 05:08:45 C 13 23 43.22 -05 12 33.2 r G96
2009-04-24 05:18:37 C 13 23 42.61 -05 12 32.6 r G96
2009-04-24 05:28:24 C 13 23 42.00 -05 12 31.8 r G96
2009-05-15 06:14:44 C 12 57 48.13 -05 12 24.2 r G96
2009-05-15 06:28:30 C 12 57 47.55 -05 12 25.5 r G96
2009-05-15 06:42:19 C 12 57 46.98 -05 12 26.9 r G96
2009-05-15 06:56:10 C 12 57 46.40 -05 12 28.0 r G96
2012-02-22 08:32:20 C 12 25 47.06 +06 27 17.9 o H21
2012-02-22 08:55:00 C 12 25 46.43 +06 27 23.3 o H21
2012-02-22 09:20:40 C 12 25 45.74 +06 27 28.6 o H21
2015-02-20 13:32:46 C 11 07 19.503 +16 14 12.60 L F51
2015-02-20 13:52:20 C 11 07 18.597 +16 14 18.22 L F51
2015-02-20 14:11:55 C 11 07 17.720 +16 14 24.10 L F51
2015-02-23 08:36:10 C 11 04 17.593 +16 33 29.95 L F51
2015-02-23 09:12:23 C 11 04 15.853 +16 33 40.73 L F51
2015-02-23 09:30:28 C 11 04 15.014 +16 33 45.86 L F51
2019-10-23 10:31:02 C 04 30 06.11 +24 12 31.0 V G96
2019-10-23 10:38:28 C 04 30 05.78 +24 12 31.5 V G96
2019-10-23 10:45:57 C 04 30 05.53 +24 12 32.3 V G96
2019-10-23 10:53:24 C 04 30 05.19 +24 12 32.2 V G96
2019-11-02 09:51:31 C 04 19 06.608 +24 27 34.87 U F51
2019-11-02 10:09:03 C 04 19 05.653 +24 27 35.72 U F51
2019-11-02 10:26:35 C 04 19 04.711 +24 27 36.49 U F51
2019-11-02 10:44:08 C 04 19 03.748 +24 27 37.23 U F51
2019-11-05 09:17:53 C 04 15 15.03 +24 29 40.3 V G96
2019-11-05 09:25:12 C 04 15 14.61 +24 29 40.7 V G96
2019-11-05 09:32:28 C 04 15 14.22 +24 29 40.2 V G96
2019-11-05 09:39:47 C 04 15 13.78 +24 29 40.7 V G96
2019-11-07 13:21:37 C 04 12 18.945 +24 30 29.70 U F51
2019-11-07 13:41:25 C 04 12 17.769 +24 30 29.75 U F51
2019-11-07 14:01:14 C 04 12 16.597 +24 30 29.97 U F51
2019-11-19 08:36:44 C 03 55 21.08 +24 24 08.6 V G96
2019-11-19 08:44:48 C 03 55 20.56 +24 24 07.8 V G96
2019-11-19 08:52:51 C 03 55 20.07 +24 24 07.6 V G96