2015 XW261

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4668901848 ± 2.31e-08
Semi-major axis (a)1.2486842336 AU ± 9.76e-10
Inclination (i)29.67516663° ± 8.83e-06
Long. of Asc. Node (Ω)269.88916746° ± 1.98e-06
Arg. of Perihelion (ω)289.45619973° ± 4.72e-06
Mean Anomaly (M)341.81450469° ± 2.86e-06
Mean Motion (n)0.7063717691°/day ± 8.28e-10
Perihelion dist (q)0.66568582 AU ± 2.89e-08
Aphelion dist (Q)1.83168265 AU ± 2.89e-08
Orbital Period1.39533646 yr ± 1.64e-09
Physical Parameters
H (abs. magnitude)21.39
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.241″
Uncertainty0
Orbit TypeApollo
MOID0.114564 AU
Observations Used222
Oppositions4
Arc Total2009-2022
First Observation Used2009-01-16
Last Observation Used2022-12-30
Observations (231)
Date Type RA Dec Mag Band Observatory
2016-01-03 03:08:00 C 03 42 45.83 -04 56 18.3 u H21
2016-01-03 03:11:07 C 03 42 44.82 -04 56 43.3 u H21
2016-01-03 03:14:13 C 03 42 43.82 -04 57 08.4 u H21
2016-01-03 03:17:20 C 03 42 42.81 -04 57 33.4 u H21
2016-01-03 03:20:08 C 03 42 41.89 -04 57 56.1 u H21
2016-01-03 04:38:28 C 03 42 17.52 -05 08 22.3 q I52
2016-01-03 04:45:21 C 03 42 15.26 -05 09 17.6 q I52
2016-01-03 04:46:56 C 03 42 14.72 -05 09 31.2 q I52
2016-01-03 04:55:44 C 03 42 11.85 -05 10 41.7 q I52
2016-01-07 02:00:29 C 03 13 57.36 -16 57 38.8 u 807
2016-01-07 02:03:02 C 03 13 56.58 -16 57 56.6 u 807
2016-01-07 02:05:42 C 03 13 55.77 -16 58 15.1 u 807
2016-01-07 02:08:08 C 03 13 55.00 -16 58 32.4 u 807
2016-01-07 02:10:51 C 03 13 54.18 -16 58 51.4 u 807
2016-01-09 01:28:39 C 03 00 19.73 -22 14 19.7 u 807
2016-01-09 01:32:21 C 03 00 18.63 -22 14 43.0 u 807
2016-01-09 01:36:09 C 03 00 17.52 -22 15 06.9 u 807
2016-01-09 01:39:44 C 03 00 16.46 -22 15 29.5 u 807
2016-01-09 01:43:43 C 03 00 15.29 -22 15 54.3 u 807
2016-01-12 03:02:31 C 02 40 20.51 -29 16 50.8 o 926
2016-01-12 03:07:21 C 02 40 19.15 -29 17 15.8 o 926
2016-01-12 03:12:10 C 02 40 17.79 -29 17 40.5 o 926
2016-01-16 01:01:35 C 02 16 39.79 -36 21 53.6 u 807
2016-01-16 01:05:00 C 02 16 38.97 -36 22 07.6 u 807
2016-01-16 01:08:36 C 02 16 38.06 -36 22 21.3 u 807
2016-01-16 01:11:52 C 02 16 37.23 -36 22 33.9 u 807
2016-01-16 01:15:28 C 02 16 36.31 -36 22 47.7 u 807
2016-07-29 12:27:06 C 00 07 23.916 +49 49 44.56 t 568
2016-07-29 12:42:56 C 00 07 23.300 +49 50 00.03 t 568
2016-07-30 12:54:01 C 00 06 29.946 +50 13 05.05 t 568
2016-07-30 13:06:41 C 00 06 29.411 +50 13 17.16 t 568
2016-07-30 13:21:16 C 00 06 28.810 +50 13 30.99 t 568
2020-07-26 05:25:58 C 17 04 37.14 +51 44 33.4 V G96
2020-07-26 05:33:35 C 17 04 38.42 +51 44 15.9 V G96
2020-07-26 05:41:11 C 17 04 39.71 +51 43 58.3 V G96
2020-07-26 05:48:46 C 17 04 40.90 +51 43 41.2 V G96
2020-08-07 03:01:53 C 17 38 04.02 +43 16 13.4 u H21
2020-08-07 03:14:53 C 17 38 05.03 +43 15 54.8 u H21
2020-08-07 03:25:05 C 17 38 05.85 +43 15 39.9 u H21
2020-08-10 02:25:45 C 17 43 45.38 +41 37 48.6 u H21
2020-08-10 02:38:20 C 17 43 46.24 +41 37 32.1 u H21
2020-08-10 02:50:21 C 17 43 47.10 +41 37 16.4 u H21
2020-08-13 03:06:44 C 17 49 04.60 +40 04 55.4 u H21
2020-08-13 03:08:50 C 17 49 04.77 +40 04 52.8 u H21
2020-08-13 03:38:54 C 17 49 06.74 +40 04 14.9 u H21
2020-08-15 02:05:19 C 17 52 20.85 +39 08 10.2 u H21
2020-08-15 02:22:06 C 17 52 21.87 +39 07 50.4 u H21
2020-08-15 02:29:55 C 17 52 22.38 +39 07 40.8 u H21
2022-11-22 09:22:51 C 08 03 10.94 +40 58 50.3 u H21
2022-11-22 09:36:57 C 08 03 11.39 +40 58 38.6 u H21