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
2014-01-28 09:52:39 C 02 47 14.80 -16 10 45.2 o 474
2014-01-28 09:55:42 C 02 47 15.25 -16 10 42.6 o 474
2014-01-28 09:58:45 C 02 47 15.69 -16 10 40.1 o 474
2014-01-28 10:01:47 C 02 47 16.17 -16 10 37.4 o 474
2014-01-29 03:01:44 C 02 49 47.10 -15 56 37.0 o 291
2014-01-29 03:04:56 C 02 49 47.55 -15 56 34.3 o 291
2014-01-29 03:08:13 C 02 49 48.01 -15 56 31.5 o 291
2023-01-21 06:30:30 C 08 41 13.48 -28 41 56.2 V 807
2023-01-21 06:50:30 C 08 41 12.17 -28 41 54.9 V 807
2023-01-21 07:09:08 C 08 41 10.91 -28 41 53.5 V 807
2024-12-22 06:49:28 C 08 58 11.220 -26 15 34.80 V 807
2024-12-22 07:05:17 C 08 58 10.410 -26 15 41.40 V 807