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
2019-05-02 11:58:13 C 16 57 07.483 -08 44 23.07 V F51
2019-05-02 12:14:01 C 16 57 07.127 -08 44 08.47 V F51
2019-05-02 12:29:50 C 16 57 06.765 -08 43 53.86 V F51
2019-05-26 09:20:29 C 16 35 00.131 +00 44 44.91 V F52
2019-05-26 09:35:25 C 16 34 59.331 +00 44 59.91 V F52
2019-05-30 11:11:29 C 16 29 48.016 +02 22 23.67 V F52
2019-05-30 11:12:23 C 16 29 47.962 +02 22 24.07 V F52
2019-05-30 11:46:42 C 16 29 46.033 +02 22 57.49 V F52
2019-05-30 11:47:37 C 16 29 45.923 +02 22 59.02 V F52
2019-05-30 12:04:18 C 16 29 45.013 +02 23 15.07 V F52
2019-06-02 10:48:03 C 16 25 53.340 +03 31 31.88 V F51
2019-06-02 11:04:01 C 16 25 52.423 +03 31 46.97 V F51
2019-06-02 11:04:01 C 16 25 52.422 +03 31 47.30 V F51
2019-06-09 10:37:18 C 16 16 40.854 +06 02 15.63 V F51
2019-06-09 10:55:35 C 16 16 39.816 +06 02 30.99 V F51
2019-06-09 11:13:51 C 16 16 38.793 +06 02 46.37 V F51
2019-06-09 11:32:03 C 16 16 37.772 +06 03 01.60 V F51
2019-06-10 04:30:41 C 16 15 43.06 +06 17 19.4 u 807
2019-06-10 04:44:14 C 16 15 42.28 +06 17 31.0 u 807
2019-06-10 04:57:12 C 16 15 41.56 +06 17 41.8 u 807
2019-06-10 05:25:22 C 16 15 40.18 +06 17 54.3 u H21
2019-06-10 05:38:30 C 16 15 39.41 +06 18 05.0 u H21
2019-06-10 05:53:41 C 16 15 38.57 +06 18 17.5 u H21
2019-06-10 11:28:56 C 16 15 20.420 +06 22 56.88 V F51
2019-06-10 11:28:57 C 16 15 20.419 +06 22 56.78 U F51
2019-06-10 11:48:33 C 16 15 19.330 +06 23 13.16 U F51
2019-06-10 11:48:34 C 16 15 19.326 +06 23 12.99 V F51
2019-06-10 12:08:12 C 16 15 18.224 +06 23 29.21 V F51
2019-06-10 12:27:47 C 16 15 17.155 +06 23 45.18 U F51
2019-06-10 12:27:47 C 16 15 17.150 +06 23 45.11 V F51
2019-06-23 10:27:05 C 16 00 15.966 +09 58 01.23 V F52
2019-06-30 09:08:15 C 15 54 08.218 +11 17 27.93 V F52
2019-06-30 09:24:00 C 15 54 07.701 +11 17 34.17 V F52
2019-06-30 09:39:42 C 15 54 07.175 +11 17 40.44 V F52
2019-06-30 09:55:25 C 15 54 06.618 +11 17 46.65 V F52
2022-09-19 09:39:45 C 03 38 16.606 +49 54 10.80 V G96
2022-09-19 09:49:27 C 03 38 17.434 +49 54 00.97 V G96
2022-09-19 09:59:09 C 03 38 18.190 +49 53 50.96 V G96
2022-09-19 10:08:53 C 03 38 19.007 +49 53 41.17 V G96
2022-10-01 00:01:46 C 03 56 48.74 +43 58 39.6 X C95
2022-10-01 01:08:21 C 03 56 51.51 +43 56 58.0 X C95
2022-10-02 03:01:35 C 03 57 58.40 +43 16 22.7 X C95
2022-10-02 03:58:29 C 03 58 00.48 +43 14 51.7 X C95
2022-10-07 08:20:30 C 04 02 02.144 +39 40 53.76 V G96
2022-10-07 08:27:56 C 04 02 02.321 +39 40 40.08 V G96
2022-10-07 08:35:23 C 04 02 02.447 +39 40 26.65 V G96
2022-10-07 08:42:48 C 04 02 02.591 +39 40 13.04 V G96
2022-10-21 08:40:05 C 04 02 28.572 +27 33 56.23 V 703
2022-10-21 08:47:44 C 04 02 28.316 +27 33 37.94 V 703
2022-10-21 08:55:24 C 04 02 28.183 +27 33 19.22 V 703