2011 XS2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7408364185 ± 1.56e-07
Semi-major axis (a)1.6405188392 AU ± 2.45e-08
Inclination (i)30.80877062° ± 1.56e-05
Long. of Asc. Node (Ω)225.70777781° ± 4.24e-05
Arg. of Perihelion (ω)99.56363716° ± 4.57e-05
Mean Anomaly (M)256.89379569° ± 4.76e-05
Mean Motion (n)0.4690730081°/day ± 1.05e-08
Perihelion dist (q)0.42516274 AU ± 2.56e-07
Aphelion dist (Q)2.85587494 AU ± 2.60e-07
Orbital Period2.10122149 yr ± 4.71e-08
Physical Parameters
H (abs. magnitude)18.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.177″
Uncertainty0
Orbit TypeApollo
MOID0.087857 AU
Observations Used111
Oppositions7
Arc Total2011-2024
First Observation Used2011-12-13
Last Observation Used2024-12-22
Observations (112)
Date Type RA Dec Mag Band Observatory
2011-12-13 12:45:48 C 05 59 39.04 -46 16 46.0 r E12
2011-12-13 13:05:44 C 05 59 33.98 -46 16 10.1 r E12
2011-12-13 13:25:46 C 05 59 28.93 -46 15 33.7 r E12
2011-12-13 13:45:50 C 05 59 23.98 -46 14 57.7 r E12
2011-12-13 14:05:48 C 05 59 18.89 -46 14 21.1 r E12
2011-12-13 14:26:56 C 05 59 13.57 -46 13 42.7 r E12
2011-12-13 14:48:19 C 05 59 08.19 -46 13 03.6 r E12
2011-12-13 15:09:43 C 05 59 02.87 -46 12 24.5 r E12
2011-12-13 15:36:24 C 05 58 56.21 -46 11 35.4 r E12
2011-12-13 16:33:54 C 05 58 41.88 -46 09 49.4 r E12
2011-12-13 16:39:25 C 05 58 40.48 -46 09 39.1 r E12
2011-12-13 17:35:18 C 05 58 26.70 -46 07 55.2 r E12
2011-12-13 17:38:50 C 05 58 25.82 -46 07 48.9 r E12
2011-12-14 00:20:08 C 05 56 52.94 -45 55 32.6 u 822
2011-12-14 00:29:56 C 05 56 50.55 -45 55 16.2 u 822
2011-12-14 00:37:08 C 05 56 48.88 -45 55 04.1 u 822
2011-12-14 03:29:46 C 05 56 07.66 -45 49 55.3 o 807
2011-12-14 03:34:15 C 05 56 06.59 -45 49 47.1 o 807
2011-12-14 03:38:45 C 05 56 05.52 -45 49 39.4 o 807
2011-12-14 03:43:19 C 05 56 04.41 -45 49 31.2 o 807
2011-12-14 03:48:00 C 05 56 03.31 -45 49 22.5 o 807
2011-12-14 03:52:27 C 05 56 02.22 -45 49 14.4 o 807
2011-12-14 10:28:05 C 05 54 31.86 -45 37 10.0 r E12
2011-12-14 10:33:26 C 05 54 30.62 -45 37 00.7 r E12
2011-12-14 11:56:56 C 05 54 11.22 -45 34 32.8 r E12
2011-12-14 12:02:44 C 05 54 09.90 -45 34 22.8 r E12
2011-12-15 00:34:48 C 05 51 23.15 -45 11 36.8 o 807
2011-12-15 00:37:35 C 05 51 22.53 -45 11 32.0 o 807
2011-12-15 00:40:22 C 05 51 21.94 -45 11 27.2 o 807
2011-12-15 00:43:10 C 05 51 21.31 -45 11 22.2 o 807
2011-12-15 00:45:57 C 05 51 20.70 -45 11 17.4 o 807
2011-12-15 00:48:44 C 05 51 20.08 -45 11 12.5 o 807
2011-12-15 00:51:31 C 05 51 19.48 -45 11 07.6 o 807
2011-12-15 00:54:18 C 05 51 18.85 -45 11 02.7 o 807
2011-12-15 00:57:04 C 05 51 18.24 -45 10 57.9 o 807
2011-12-16 12:37:47 C 05 43 56.96 -44 07 08.9 r E12
2011-12-16 12:45:00 C 05 43 55.52 -44 06 56.1 r E12
2011-12-16 17:10:01 C 05 43 02.76 -43 59 03.2 r E12
2011-12-17 00:38:07 C 05 41 40.35 -43 45 48.5 o 807
2011-12-17 00:47:16 C 05 41 38.60 -43 45 32.7 o 807
2011-12-17 00:53:49 C 05 41 37.36 -43 45 21.4 o 807
2011-12-17 00:58:43 C 05 41 36.43 -43 45 12.8 o 807
2011-12-17 01:02:00 C 05 41 35.79 -43 45 07.4 o 807
2011-12-18 00:34:52 C 05 37 21.24 -43 03 47.7 o 807
2011-12-18 00:40:48 C 05 37 20.21 -43 03 37.7 o 807
2011-12-18 00:46:07 C 05 37 19.28 -43 03 28.7 o 807
2011-12-18 00:50:36 C 05 37 18.48 -43 03 21.1 o 807
2011-12-18 00:54:15 C 05 37 17.81 -43 03 15.0 o 807
2011-12-18 00:57:10 C 05 37 17.33 -43 03 09.7 o 807
2011-12-18 01:00:06 C 05 37 16.79 -43 03 05.0 o 807