878285 (2011 XC)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1341580315 ± 7.60e-08
Semi-major axis (a)1.2564324594 AU ± 3.70e-09
Inclination (i)21.60034977° ± 1.73e-05
Long. of Asc. Node (Ω)75.63529239° ± 5.12e-06
Arg. of Perihelion (ω)63.82047657° ± 4.21e-05
Mean Anomaly (M)274.03228734° ± 5.05e-05
Mean Motion (n)0.6998477241°/day ± 3.09e-09
Perihelion dist (q)1.08787195 AU ± 9.55e-08
Aphelion dist (Q)1.42499296 AU ± 9.56e-08
Orbital Period1.40834391 yr ± 6.22e-09
Physical Parameters
H (abs. magnitude)20.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.342″
Uncertainty0
Orbit TypeAmor
MOID0.171144 AU
Observations Used135
Oppositions8
Arc Total1998-2025
First Observation Used1998-06-02
Last Observation Used2025-12-12
Observations (138)
Date Type RA Dec Mag Band Observatory
2011-12-08 05:29:18 C 04 03 09.89 +14 59 10.4 o H21
2011-12-15 23:07:03 C 03 27 30.19 +27 29 25.9 v C32
2011-12-15 23:08:32 C 03 27 29.84 +27 29 31.7 v C32
2011-12-15 23:16:27 C 03 27 28.26 +27 30 01.8 v C32
2011-12-15 23:17:52 C 03 27 28.02 +27 30 07.3 v C32
2011-12-19 20:31:39 C 03 09 11.92 +33 18 02.4 r 106
2011-12-19 20:50:50 C 03 09 07.93 +33 19 10.9 r 106
2011-12-19 21:28:55 C 03 09 00.11 +33 21 24.5 r 106
2011-12-19 22:06:55 C 03 08 52.64 +33 23 38.9 r 203
2011-12-19 22:58:54 C 03 08 42.04 +33 26 39.8 r 203
2011-12-22 19:34:08 C 02 55 38.67 +37 17 26.9 t 130
2011-12-22 19:37:01 C 02 55 38.10 +37 17 35.9 t 130
2011-12-22 19:39:56 C 02 55 37.52 +37 17 45.5 t 130
2011-12-22 19:42:49 C 02 55 36.94 +37 17 54.9 t 130
2011-12-23 19:26:03 C 02 51 13.15 +38 32 22.9 u 157
2011-12-23 19:31:20 C 02 51 12.11 +38 32 39.0 u 157
2011-12-23 19:36:37 C 02 51 11.10 +38 32 55.1 u 157
2011-12-29 04:22:09 C 02 28 56.43 +44 29 13.6 r 703
2011-12-29 04:31:46 C 02 28 54.87 +44 29 38.1 r 703
2011-12-29 04:51:04 C 02 28 51.34 +44 30 24.6 r 703
2011-12-29 05:00:47 C 02 28 50.13 +44 30 48.1 r 703
2012-01-09 22:35:49 C 01 52 39.41 +53 42 11.0 t 204
2012-01-09 23:01:25 C 01 52 36.83 +53 42 49.4 t 204
2015-06-11 09:09:23 C 21 02 18.10 -38 25 09.7 u 807
2015-06-11 09:19:37 C 21 02 18.37 -38 25 29.5 u 807
2015-06-11 09:30:31 C 21 02 18.56 -38 25 49.9 u 807
2015-07-20 06:27:17 C 20 14 02.99 -65 23 57.3 u 807
2015-07-20 06:37:01 C 20 14 01.36 -65 24 06.4 u 807
2015-07-20 06:46:28 C 20 13 59.98 -65 24 14.9 u 807
2018-11-07 02:11:04 C 02 57 15.96 -33 51 41.4 u 807
2019-01-03 06:31:02 C 01 23 24.147 +15 51 20.84 U F51
2019-01-03 06:50:17 C 01 23 24.333 +15 52 02.10 U F51
2019-01-03 07:28:54 C 01 23 24.741 +15 53 24.86 U F51
2025-12-10 04:05:46 C 00 34 58.960 -17 21 38.40 V 691
2025-12-10 04:24:22 C 00 34 59.220 -17 21 00.00 V 691
2025-12-12 02:23:59 C 00 35 52.910 -15 47 00.30 V 691
2025-12-12 02:45:58 C 00 35 53.310 -15 46 15.40 V 691
2025-12-12 03:07:56 C 00 35 53.640 -15 45 30.40 V 691