2015 XN261

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1637763794 ± 1.22e-05
Semi-major axis (a)0.9740193031 AU ± 1.20e-06
Inclination (i)2.32164247° ± 1.25e-04
Long. of Asc. Node (Ω)278.46821136° ± 1.90e-04
Arg. of Perihelion (ω)274.93536053° ± 6.66e-04
Mean Anomaly (M)28.40313967° ± 7.41e-03
Mean Motion (n)1.0253235451°/day ± 1.90e-06
Perihelion dist (q)0.81449795 AU ± 1.20e-05
Aphelion dist (Q)1.13354066 AU ± 1.20e-05
Orbital Period0.96128319 yr ± 1.78e-06
Physical Parameters
H (abs. magnitude)26.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.307″
Uncertainty1
Orbit TypeAten
MOID0.005478 AU
Observations Used162
Oppositions1
Arc Total2015-2015
First Observation Used2015-12-10
Last Observation Used2015-12-22
Observations (166)
Date Type RA Dec Mag Band Observatory
2015-12-10 08:18:54 C 06 26 11.24 +44 02 11.9 q G96
2015-12-10 08:26:14 C 06 26 09.96 +44 02 25.3 q G96
2015-12-10 08:34:54 C 06 26 08.49 +44 02 40.9 q G96
2015-12-10 08:43:09 C 06 26 07.15 +44 02 55.6 q G96
2015-12-10 09:29:17 C 06 25 58.25 +44 04 05.8 t H01
2015-12-10 09:41:06 C 06 25 56.30 +44 04 24.8 t H01
2015-12-10 09:56:25 C 06 25 53.78 +44 04 48.9 t H01
2015-12-10 09:58:44 C 06 25 54.32 +44 05 01.7 q I52
2015-12-10 10:03:31 C 06 25 53.48 +44 05 09.7 q I52
2015-12-10 10:08:18 C 06 25 52.78 +44 05 16.7 q I52
2015-12-10 10:12:12 C 06 25 51.22 +44 05 13.1 t H01
2015-12-10 10:13:05 C 06 25 51.93 +44 05 24.1 q I52
2015-12-10 10:42:53 C 06 25 47.11 +44 06 09.2 q G96
2015-12-10 10:49:56 C 06 25 45.97 +44 06 19.7 q G96
2015-12-10 10:56:59 C 06 25 44.86 +44 06 30.0 q G96
2015-12-10 21:59:23 C 06 24 58.94 +44 26 00.6 q 246
2015-12-10 22:00:17 C 06 24 58.82 +44 26 03.9 q 246
2015-12-10 22:01:16 C 06 24 58.74 +44 26 05.6 q 246
2015-12-10 22:01:46 C 06 24 58.67 +44 26 06.6 q 246
2015-12-10 22:14:44 C 06 24 57.56 +44 26 42.9 o K51
2015-12-10 22:20:02 C 06 24 56.72 +44 26 54.4 o K51
2015-12-10 22:25:22 C 06 24 55.86 +44 27 06.0 o K51
2015-12-10 22:30:25 C 06 24 55.54 +44 27 23.5 20.2 t 104
2015-12-10 22:48:12 C 06 24 52.57 +44 28 01.9 19.4 t 104
2015-12-10 23:05:23 C 06 24 49.68 +44 28 38.6 19.5 t 104
2015-12-11 00:11:34 C 06 24 37.44 +44 30 45.4 t 595
2015-12-11 00:44:34 C 06 24 31.72 +44 31 48.1 t 595
2015-12-11 03:35:13 C 06 24 33.59 +44 36 40.2 t H01
2015-12-11 03:39:30 C 06 24 33.01 +44 36 51.1 t H01
2015-12-11 03:53:19 C 06 24 31.09 +44 37 26.4 t H01
2015-12-11 04:02:05 C 06 24 29.85 +44 37 48.7 t H01
2015-12-11 05:53:02 C 06 24 05.68 +44 42 06.3 19.9 t 754
2015-12-11 06:02:03 C 06 24 04.03 +44 42 25.9 19.9 t 754
2015-12-11 06:06:38 C 06 24 03.18 +44 42 35.5 19.9 t 754
2015-12-11 10:19:09 C 06 23 21.53 +44 51 41.7 u 926
2015-12-11 10:27:59 C 06 23 19.74 +44 51 56.8 u 926
2015-12-11 10:36:52 C 06 23 18.17 +44 52 12.0 u 926
2015-12-11 20:54:46 C 06 22 28.83 +45 12 32.2 q C77
2015-12-11 21:09:15 C 06 22 26.40 +45 13 10.3 q C77
2015-12-11 21:22:19 C 06 22 24.05 +45 13 44.8 q C77
2015-12-13 07:45:09 C 06 17 05.02 +46 39 26.1 u 926
2015-12-13 07:49:21 C 06 17 03.87 +46 39 38.1 u 926
2015-12-13 07:53:32 C 06 17 02.70 +46 39 49.3 u 926
2015-12-13 08:50:41 C 06 16 46.35 +46 42 25.1 u 926
2015-12-13 08:54:54 C 06 16 45.20 +46 42 35.9 u 926
2015-12-13 08:59:04 C 06 16 44.03 +46 42 46.5 u 926
2015-12-15 09:27:15 C 06 05 05.77 +49 21 25.2 q H45
2015-12-15 09:29:03 C 06 05 05.11 +49 21 30.3 q H45
2015-12-15 09:30:53 C 06 05 04.23 +49 21 37.1 q H45
2015-12-15 09:33:04 C 06 05 03.37 +49 21 43.5 q H45