412977 (1990 UO)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7727853676 ± 1.87e-07
Semi-major axis (a)1.2570512113 AU ± 4.29e-09
Inclination (i)31.59049413° ± 2.47e-05
Long. of Asc. Node (Ω)205.57040872° ± 7.70e-06
Arg. of Perihelion (ω)333.53177339° ± 1.50e-05
Mean Anomaly (M)250.27438154° ± 3.29e-05
Mean Motion (n)0.6993310640°/day ± 3.58e-09
Perihelion dist (q)0.28562043 AU ± 2.35e-07
Aphelion dist (Q)2.22848199 AU ± 2.35e-07
Orbital Period1.40938439 yr ± 7.21e-09
Physical Parameters
H (abs. magnitude)19.57
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.434″
Uncertainty0
Orbit TypeApollo
MOID0.204796 AU
Observations Used191
Oppositions10
Arc Total1990-2025
First Observation Used1990-10-22
Last Observation Used2025-11-11
Observations (206)
Date Type RA Dec Mag Band Observatory
2007-10-22 07:56:28 C 03 55 00.49 -01 55 25.4 19.1 c 704
2007-10-22 08:13:16 C 03 54 59.69 -01 56 32.5 19.0 c 704
2007-10-22 08:22:41 C 03 54 58.82 -01 57 13.7 o H55
2007-10-22 08:25:53 C 03 54 58.68 -01 57 26.2 o H55
2007-10-22 08:29:22 C 03 54 58.51 -01 57 40.5 o H55
2007-10-22 08:30:32 C 03 54 58.88 -01 57 42.2 19.0 c 704
2007-10-22 14:09:09 C 03 54 43.67 -02 20 12.8 r F84
2007-10-22 14:17:05 C 03 54 43.28 -02 20 45.5 r F84
2007-10-22 14:24:56 C 03 54 42.89 -02 21 17.6 r F84
2007-10-22 18:45:26 C 03 54 32.43 -02 39 06.6 c D21
2007-10-22 18:48:38 C 03 54 32.27 -02 39 19.3 c D21
2007-10-22 18:51:51 C 03 54 32.15 -02 39 31.8 c D21
2007-10-23 07:23:02 C 03 53 58.92 -03 32 53.8 19.3 c 704
2007-10-23 07:39:56 C 03 53 58.06 -03 34 06.1 19.3 c 704
2007-10-23 07:56:58 C 03 53 57.23 -03 35 19.1 19.5 c 704
2007-10-23 08:13:49 C 03 53 56.18 -03 36 31.6 19.6 c 704
2007-10-23 08:30:42 C 03 53 55.39 -03 37 44.1 19.3 c 704
2007-10-23 11:28:13 C 03 53 45.97 -03 50 35.2 r 448
2007-10-23 11:38:49 C 03 53 45.37 -03 51 22.2 r 448
2007-10-23 18:46:43 C 03 53 25.13 -04 22 23.0 c D21
2007-10-23 18:49:58 C 03 53 25.04 -04 22 36.2 c D21
2007-10-23 18:53:13 C 03 53 24.88 -04 22 50.0 c D21
2007-10-24 07:37:49 C 03 52 46.51 -05 21 15.8 r G96
2007-10-24 08:06:26 C 03 52 44.76 -05 23 28.5 r G96
2007-10-26 10:58:18 C 03 49 37.92 -09 38 53.7 c 926
2007-10-26 10:59:27 C 03 49 37.82 -09 38 59.4 c 926
2007-10-26 11:00:35 C 03 49 37.79 -09 39 05.4 c 926
2007-11-02 15:59:30 C 03 30 32.45 -29 46 00.0 c D21
2007-11-02 16:02:41 C 03 30 31.88 -29 46 27.2 c D21
2007-11-02 16:05:52 C 03 30 31.30 -29 46 55.1 c D21
2007-11-07 16:45:36 C 03 00 53.56 -48 32 15.1 c D21
2007-11-07 16:48:50 C 03 00 52.45 -48 32 46.6 c D21
2007-11-07 16:52:03 C 03 00 51.13 -48 33 17.8 c D21
2011-08-31 11:25:52 C 01 36 43.129 +26 04 10.29 t 568
2011-08-31 12:27:48 C 01 36 40.907 +26 04 01.67 t 568
2011-08-31 13:29:57 C 01 36 38.630 +26 03 52.51 t 568
2011-09-05 11:51:11 C 01 31 57.346 +25 41 50.08 t 568
2011-10-19 06:27:24 C 00 08 06.343 +13 05 45.70 L F51
2011-10-19 06:47:21 C 00 08 04.507 +13 05 22.96 L F51
2011-10-19 07:07:20 C 00 08 02.685 +13 05 00.43 L F51
2011-10-19 07:30:16 C 00 08 00.580 +13 04 34.20 L F51
2012-08-25 06:09:22 C 23 11 24.24 +35 31 10.2 u H21
2012-08-25 06:35:28 C 23 11 21.71 +35 30 55.5 u H21
2012-08-25 07:02:57 C 23 11 18.92 +35 30 40.9 u H21
2014-09-26 09:19:50 C 03 02 20.36 +19 30 11.2 q G96
2014-09-26 09:27:32 C 03 02 20.10 +19 30 05.9 q G96
2014-09-26 09:35:15 C 03 02 19.89 +19 30 00.4 q G96
2014-09-26 09:42:58 C 03 02 19.62 +19 29 55.2 q G96
2014-10-16 05:18:55 C 02 31 22.16 +10 03 24.4 o 691
2014-10-16 05:48:14 C 02 31 18.90 +10 02 30.2 o 691