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
2015-12-15 09:35:13 C 06 05 02.46 +49 21 51.1 q H45
2015-12-15 09:37:08 C 06 05 01.71 +49 21 57.6 q H45
2015-12-16 04:53:23 C 05 59 05.00 +50 45 05.1 u 926
2015-12-16 04:57:06 C 05 59 03.08 +50 45 24.9 u 926
2015-12-16 05:00:47 C 05 59 01.19 +50 45 44.9 u 926
2015-12-16 05:28:14 C 05 58 32.89 +50 48 00.0 u H21
2015-12-16 05:30:12 C 05 58 31.81 +50 48 09.6 u H21
2015-12-16 05:32:09 C 05 58 30.76 +50 48 19.2 u H21
2015-12-16 05:34:07 C 05 58 29.73 +50 48 28.6 u H21
2015-12-16 05:36:04 C 05 58 28.67 +50 48 38.2 u H21
2015-12-16 05:38:02 C 05 58 27.62 +50 48 47.9 u H21
2015-12-16 05:39:59 C 05 58 26.53 +50 48 57.3 u H21
2015-12-16 05:41:57 C 05 58 25.46 +50 49 06.7 u H21
2015-12-16 05:43:54 C 05 58 24.41 +50 49 16.3 u H21
2015-12-16 05:45:52 C 05 58 23.36 +50 49 25.9 u H21
2015-12-16 05:47:50 C 05 58 22.27 +50 49 35.1 u H21
2015-12-16 05:49:47 C 05 58 21.23 +50 49 44.7 u H21
2015-12-17 06:16:23 C 05 46 31.25 +52 58 26.0 u H21
2015-12-17 06:18:21 C 05 46 29.73 +52 58 37.4 u H21
2015-12-17 06:20:19 C 05 46 28.28 +52 58 48.8 u H21
2015-12-17 06:22:16 C 05 46 26.81 +52 59 00.0 u H21
2015-12-17 06:24:14 C 05 46 25.34 +52 59 11.3 u H21
2015-12-17 06:26:12 C 05 46 23.85 +52 59 22.6 u H21
2015-12-17 06:28:09 C 05 46 22.39 +52 59 33.8 u H21
2015-12-17 06:30:07 C 05 46 20.92 +52 59 45.0 u H21
2015-12-17 06:32:04 C 05 46 19.44 +52 59 56.2 u H21
2015-12-17 06:34:01 C 05 46 17.98 +53 00 07.3 u H21
2015-12-17 06:35:59 C 05 46 16.50 +53 00 18.5 u H21
2015-12-17 06:38:07 C 05 46 14.91 +53 00 30.6 u H21
2015-12-17 06:57:51 C 05 46 16.28 +53 03 23.8 q I52
2015-12-17 07:00:14 C 05 46 14.44 +53 03 38.4 q I52
2015-12-17 07:03:12 C 05 46 12.16 +53 03 56.7 q I52
2015-12-17 07:07:40 C 05 46 08.67 +53 04 23.9 q I52
2015-12-17 08:05:36 C 05 45 11.09 +53 09 14.4 q H45
2015-12-17 08:07:10 C 05 45 09.90 +53 09 23.5 q H45
2015-12-17 08:08:28 C 05 45 08.91 +53 09 30.1 q H45
2015-12-17 08:10:34 C 05 45 07.34 +53 09 41.6 q H45
2015-12-17 08:12:03 C 05 45 06.17 +53 09 49.4 q H45
2015-12-17 08:13:14 C 05 45 05.26 +53 09 55.3 q H45
2015-12-17 11:08:32 C 05 43 02.00 +53 26 26.0 u 926
2015-12-17 11:11:17 C 05 43 00.05 +53 26 39.8 u 926
2015-12-17 11:14:00 C 05 42 58.02 +53 26 53.1 u 926
2015-12-17 22:18:14 C 05 36 09.38 +54 39 28.9 c A53
2015-12-17 22:39:33 C 05 35 49.47 +54 42 00.2 c A53
2015-12-18 06:46:14 C 05 29 09.27 +55 42 06.5 q 703
2015-12-18 06:52:11 C 05 29 02.59 +55 42 51.1 q 703
2015-12-18 06:58:08 C 05 28 55.85 +55 43 36.0 q 703
2015-12-18 07:04:07 C 05 28 49.12 +55 44 21.7 q 703
2015-12-18 07:48:32 C 05 27 43.32 +55 48 45.7 q H45
2015-12-18 07:49:56 C 05 27 41.93 +55 48 54.7 q H45