856574 (2011 UG256)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3504333763 ± 5.30e-08
Semi-major axis (a)1.9603808547 AU ± 2.47e-09
Inclination (i)26.19732186° ± 1.14e-05
Long. of Asc. Node (Ω)222.66820414° ± 5.05e-06
Arg. of Perihelion (ω)132.82252036° ± 2.32e-05
Mean Anomaly (M)64.62685053° ± 1.56e-05
Mean Motion (n)0.3590885832°/day ± 6.80e-10
Perihelion dist (q)1.27339797 AU ± 1.04e-07
Aphelion dist (Q)2.64736374 AU ± 1.04e-07
Orbital Period2.74479983 yr ± 5.19e-09
Physical Parameters
H (abs. magnitude)20.29
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.283″
Uncertainty0
Orbit TypeAmor
MOID0.354870 AU
Observations Used181
Oppositions7
Arc Total2011-2022
First Observation Used2011-10-31
Last Observation Used2022-12-14
Observations (183)
Date Type RA Dec Mag Band Observatory
2011-10-31 03:58:35 C 02 38 52.90 +22 14 23.8 o 691
2011-10-31 04:24:11 C 02 38 52.44 +22 13 07.6 o 691
2011-10-31 04:49:48 C 02 38 52.15 +22 11 51.9 o 691
2011-10-31 06:00:54 C 02 38 51.06 +22 08 20.6 o 291
2011-10-31 06:03:35 C 02 38 51.02 +22 08 12.7 o 291
2011-10-31 06:06:15 C 02 38 50.98 +22 08 04.7 o 291
2011-10-31 07:58:50 C 02 38 48.67 +22 02 24.5 19.3 t H21
2011-10-31 08:04:30 C 02 38 48.59 +22 02 07.5 19.4 t H21
2011-10-31 08:10:27 C 02 38 48.51 +22 01 49.6 19.2 t H21
2011-10-31 10:10:56 C 02 38 47.07 +21 55 52.1 o 291
2011-10-31 10:13:27 C 02 38 47.04 +21 55 44.9 o 291
2011-10-31 10:15:57 C 02 38 46.98 +21 55 37.3 o 291
2011-10-31 18:19:56 C 02 38 44.07 +21 31 25.9 r A17
2011-10-31 18:31:23 C 02 38 43.86 +21 30 51.5 r A17
2011-10-31 18:41:42 C 02 38 43.76 +21 30 21.2 r A17
2011-10-31 20:16:03 C 02 38 42.54 +21 25 42.7 v B03
2011-10-31 20:37:25 C 02 38 42.21 +21 24 40.8 v B03
2011-10-31 20:58:47 C 02 38 41.92 +21 23 37.0 v B03
2011-10-31 21:20:16 C 02 38 41.65 +21 22 33.4 v B03
2011-10-31 23:06:19 C 02 38 40.22 +21 17 17.3 u B86
2011-10-31 23:31:59 C 02 38 39.84 +21 16 00.8 u B86
2011-10-31 23:59:29 C 02 38 39.45 +21 14 39.5 u B86
2011-11-01 00:09:00 C 02 38 39.31 +21 14 11.1 u B86
2011-11-01 00:17:56 C 02 38 39.19 +21 13 43.8 u B86
2011-11-01 05:00:17 C 02 38 37.28 +20 59 52.7 o 291
2011-11-01 05:02:49 C 02 38 37.25 +20 59 45.5 o 291
2011-11-01 05:05:22 C 02 38 37.22 +20 59 38.1 o 291
2011-11-01 06:13:40 C 02 38 36.05 +20 56 16.1 19.3 c 704
2011-11-01 06:31:14 C 02 38 35.79 +20 55 23.9 19.5 c 704
2011-11-01 06:49:12 C 02 38 35.44 +20 54 30.0 19.4 c 704
2011-11-01 07:06:47 C 02 38 35.20 +20 53 38.5 19.4 c 704
2011-11-01 07:24:23 C 02 38 34.84 +20 52 46.7 19.5 c 704
2011-11-02 04:11:14 C 02 38 22.84 +19 51 26.6 o H21
2011-11-02 04:16:33 C 02 38 22.76 +19 51 11.4 o H21
2011-11-02 04:21:38 C 02 38 22.69 +19 50 56.4 o H21
2011-11-02 04:27:43 C 02 38 22.58 +19 50 38.2 o H21
2011-11-02 06:09:42 C 02 38 21.42 +19 45 42.6 19.1 c 704
2011-11-02 06:27:18 C 02 38 21.20 +19 44 51.1 19.7 c 704
2011-11-02 06:44:54 C 02 38 20.89 +19 43 59.6 19.8 c 704
2011-11-02 07:02:30 C 02 38 20.55 +19 43 08.8 19.5 c 704
2011-11-02 07:20:12 C 02 38 20.32 +19 42 16.8 19.6 c 704
2011-11-02 23:07:03 C 02 38 10.80 +18 56 06.4 o 046
2011-11-02 23:08:45 C 02 38 10.73 +18 56 02.3 o 046
2011-11-02 23:10:18 C 02 38 10.69 +18 55 56.0 o 046
2011-11-02 23:11:47 C 02 38 10.68 +18 55 51.9 o 046
2011-11-02 23:13:20 C 02 38 10.73 +18 55 47.9 o 046
2011-11-03 02:06:05 C 02 38 09.92 +18 47 52.6 o 807
2011-11-03 02:11:46 C 02 38 09.82 +18 47 36.3 o 807
2011-11-03 02:18:06 C 02 38 09.73 +18 47 18.0 o 807
2011-11-03 02:22:58 C 02 38 09.64 +18 47 04.1 o 807