2015 OR21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3690982904 ± 7.22e-05
Semi-major axis (a)1.9737938298 AU ± 3.05e-04
Inclination (i)0.46630176° ± 9.05e-05
Long. of Asc. Node (Ω)343.45724346° ± 1.64e-03
Arg. of Perihelion (ω)307.24833527° ± 3.73e-03
Mean Anomaly (M)265.47498502° ± 3.11e-01
Mean Motion (n)0.3554345128°/day ± 8.23e-05
Perihelion dist (q)1.24526990 AU ± 2.39e-04
Aphelion dist (Q)2.70231776 AU ± 4.41e-04
Orbital Period2.77301795 yr ± 6.42e-04
Physical Parameters
H (abs. magnitude)23.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.129″
Uncertainty3
Orbit TypeAmor
MOID0.227305 AU
Observations Used18
Oppositions1
Arc Total2015-2015
First Observation Used2015-07-19
Last Observation Used2015-09-17
Observations (18)
Date Type RA Dec Mag Band Observatory
2015-07-19 11:19:01 C 20 52 27.450 -19 21 31.48 L F51
2015-07-19 11:35:22 C 20 52 27.936 -19 21 27.57 L F51
2015-07-19 11:51:47 C 20 52 28.443 -19 21 24.02 L F51
2015-07-20 10:16:35 C 20 53 23.088 -19 16 17.52 t 568
2015-07-20 10:18:27 C 20 53 23.138 -19 16 17.15 t 568
2015-07-20 10:20:19 C 20 53 23.193 -19 16 16.72 t 568
2015-07-21 04:56:59 C 20 54 06.26 -19 11 35.2 t W86
2015-07-21 05:02:39 C 20 54 06.41 -19 11 34.1 t W86
2015-07-21 05:08:18 C 20 54 06.56 -19 11 33.0 t W86
2015-07-21 05:13:58 C 20 54 06.73 -19 11 31.6 t W86
2015-08-05 06:43:05 C 21 04 59.35 -17 57 06.2 t 705
2015-08-05 06:44:57 C 21 04 59.38 -17 57 05.8 t 705
2015-08-05 06:46:49 C 21 04 59.42 -17 57 05.5 t 705
2015-08-11 10:09:17 C 21 08 18.680 -17 29 16.17 L F51
2015-08-11 10:41:56 C 21 08 19.067 -17 29 10.20 L F51
2015-08-11 10:58:32 C 21 08 19.264 -17 29 06.71 L F51
2015-09-17 09:01:02 C 21 34 29.849 -14 24 54.63 t 568
2015-09-17 09:19:04 C 21 34 30.514 -14 24 49.95 t 568