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
2003-10-21 04:19:31 C 02 33 11.22 +13 00 58.3 c 691
2003-10-21 04:58:21 C 02 33 08.83 +13 00 57.5 c 691
2003-10-21 05:36:21 C 02 33 06.43 +13 00 55.8 c 691
2003-10-21 10:26:30 C 02 32 48.10 +13 00 43.6 c 673
2003-10-21 10:30:50 C 02 32 47.76 +13 00 43.5 c 673
2003-10-21 10:34:59 C 02 32 47.45 +13 00 43.3 c 673
2003-10-21 10:41:00 C 02 32 47.06 +13 00 43.1 c 673
2003-10-21 11:20:22 C 02 32 44.56 +13 00 38.9 r 649
2003-10-21 11:26:19 C 02 32 44.27 +13 00 38.8 r 649
2003-10-21 11:33:59 C 02 32 43.78 +13 00 39.9 r 649
2003-10-22 06:22:50 C 02 31 35.26 +12 59 52.5 c 673
2003-10-22 06:28:40 C 02 31 34.93 +12 59 52.3 c 673
2003-10-22 06:34:30 C 02 31 34.53 +12 59 52.1 c 673
2003-10-22 06:40:20 C 02 31 34.07 +12 59 51.8 c 673
2003-10-22 07:41:44 C 02 31 30.20 +12 59 49.4 c 926
2003-10-22 07:48:04 C 02 31 29.78 +12 59 49.6 c 926
2003-10-22 07:56:55 C 02 31 29.23 +12 59 48.5 c 926
2003-10-22 08:28:01 C 02 31 27.23 +12 59 47.6 d 291
2003-10-22 08:39:21 C 02 31 26.50 +12 59 47.0 d 291
2003-10-22 08:50:40 C 02 31 25.76 +12 59 46.3 d 291
2003-10-23 07:53:11 C 02 30 01.01 +12 58 45.0 19.9 c 704
2003-10-23 08:11:22 C 02 29 59.86 +12 58 43.0 19.9 c 704
2003-10-23 08:29:27 C 02 29 58.66 +12 58 41.5 20.0 c 704
2003-10-23 09:05:47 C 02 29 56.38 +12 58 40.4 20.1 c 704
2003-10-25 06:20:51 C 02 27 10.19 +12 56 29.9 d 291
2003-10-25 06:27:19 C 02 27 09.78 +12 56 29.9 d 291
2003-10-25 06:33:19 C 02 27 09.40 +12 56 29.5 d 291
2003-10-28 06:16:05 C 02 22 47.77 +12 52 49.2 19.5 c 704
2003-10-28 06:38:01 C 02 22 46.39 +12 52 48.3 20.5 c 704
2003-10-28 06:55:22 C 02 22 45.23 +12 52 46.9 19.9 c 704
2003-10-28 07:13:21 C 02 22 44.15 +12 52 46.0 20.1 c 704
2003-10-28 07:31:49 C 02 22 43.02 +12 52 45.1 19.3 c 704
2003-11-02 07:56:09 C 02 15 39.32 +12 46 23.5 d 291
2003-11-02 08:01:37 C 02 15 39.00 +12 46 22.9 d 291
2003-11-02 08:07:01 C 02 15 38.70 +12 46 22.6 d 291
2003-11-16 04:51:12 C 01 59 27.43 +12 34 05.7 r 715
2003-11-16 05:03:27 C 01 59 26.92 +12 34 05.4 r 715
2003-11-16 05:16:14 C 01 59 26.40 +12 34 05.3 r 715
2003-11-18 05:47:34 C 01 57 37.06 +12 33 33.1 d 291
2003-11-18 05:55:19 C 01 57 36.73 +12 33 33.0 d 291
2003-11-18 06:02:21 C 01 57 36.48 +12 33 33.2 d 291
2003-11-21 03:47:36 C 01 55 15.98 +12 33 31.6 d 291
2003-11-21 03:53:24 C 01 55 15.79 +12 33 31.9 d 291
2003-11-21 03:59:07 C 01 55 15.60 +12 33 31.9 d 291
2003-12-21 05:05:00 C 01 49 38.99 +13 33 22.2 d 291
2003-12-21 05:10:28 C 01 49 39.11 +13 33 24.0 d 291
2003-12-21 05:15:52 C 01 49 39.16 +13 33 24.3 d 291
2006-06-17 15:34:58 C 20 45 52.99 -39 13 01.9 r E12
2006-06-17 15:46:42 C 20 45 54.28 -39 13 08.4 r E12
2006-06-17 15:58:26 C 20 45 55.58 -39 13 15.0 r E12