2013 SE21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5712614708 ± 2.00e+00
Semi-major axis (a)2.4840385902 AU ± 3.00e+00
Inclination (i)3.35267750° ± 4.00e+00
Long. of Asc. Node (Ω)19.88767377° ± 5.00e+00
Arg. of Perihelion (ω)8.74839980° ± 6.00e+00
Mean Anomaly (M)32.18743616° ± 4.98e-02
Mean Motion (n)0.2517441400°/day ± 4.56e-01
Perihelion dist (q)1.06500310 AU ± 5.13e+00
Aphelion dist (Q)3.90312890 AU ± 6.85e+00
Orbital Period3.91511660 yr ± 7.09e+00
Physical Parameters
H (abs. magnitude)23.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.294″
Uncertainty2
Orbit TypeAmor
MOID0.068181 AU
Observations Used87
Oppositions1
Arc Total2013-2013
First Observation Used
Last Observation Used2013-11-10
Observations (94)
Date Type RA Dec Mag Band Observatory
2013-09-27 11:15:59 C 00 27 13.843 -07 58 53.73 L F51
2013-09-27 11:32:53 C 00 27 17.388 -07 58 10.18 L F51
2013-09-27 11:50:09 C 00 27 20.997 -07 57 25.98 L F51
2013-09-28 02:08:45 C 00 30 49.27 -07 18 50.8 u 807
2013-09-28 02:12:26 C 00 30 50.11 -07 18 41.8 u 807
2013-09-28 02:16:06 C 00 30 50.91 -07 18 32.3 u 807
2013-09-28 04:26:58 C 00 31 21.07 -07 14 22.4 u H21
2013-09-28 04:31:34 C 00 31 22.07 -07 14 09.9 u H21
2013-09-28 04:37:00 C 00 31 23.29 -07 13 55.6 u H21
2013-09-28 04:42:06 C 00 31 24.42 -07 13 41.9 u H21
2013-09-28 04:47:10 C 00 31 25.57 -07 13 28.3 u H21
2013-09-28 05:57:38 C 00 31 39.69 -07 08 39.9 q W86
2013-09-28 06:02:32 C 00 31 40.77 -07 08 26.4 q W86
2013-09-28 06:07:26 C 00 31 41.84 -07 08 13.2 q W86
2013-09-28 06:12:19 C 00 31 42.93 -07 07 59.9 q W86
2013-09-28 06:17:13 C 00 31 44.01 -07 07 46.7 q W86
2013-09-28 06:22:06 C 00 31 45.10 -07 07 33.6 q W86
2013-09-28 07:34:38 C 00 32 08.622 -07 05 30.69 t 568
2013-09-28 07:35:56 C 00 32 08.916 -07 05 27.36 t 568
2013-09-28 07:37:14 C 00 32 09.216 -07 05 23.52 t 568
2013-09-28 07:39:05 C 00 32 09.621 -07 05 18.80 t 568
2013-09-28 07:40:23 C 00 32 09.914 -07 05 15.37 t 568
2013-09-28 07:41:42 C 00 32 10.212 -07 05 11.78 t 568
2013-09-28 08:59:14 C 00 32 23.38 -07 01 58.4 o 926
2013-09-28 09:06:31 C 00 32 25.02 -07 01 38.6 o 926
2013-09-28 09:14:24 C 00 32 26.77 -07 01 16.8 o 926
2013-09-28 22:14:11 C 00 35 43.10 -06 25 40.5 q 113
2013-09-28 22:23:40 C 00 35 45.29 -06 25 13.6 q 113
2013-09-28 22:33:09 C 00 35 47.54 -06 24 46.7 q 113
2013-09-28 22:42:36 C 00 35 49.77 -06 24 20.2 q 113
2013-09-29 06:19:12 C 00 37 46.21 -06 02 15.1 q 448
2013-09-29 06:44:15 C 00 37 52.03 -06 01 04.8 q 448
2013-09-29 07:08:12 C 00 37 57.64 -05 59 56.1 q 448
2013-09-30 04:23:38 C 00 43 35.21 -04 56 35.9 o 926
2013-09-30 04:30:11 C 00 43 36.87 -04 56 15.8 o 926
2013-09-30 04:36:59 C 00 43 38.57 -04 55 55.0 o 926
2013-10-02 06:16:46 C 00 57 34.64 -02 13 45.0 u H21
2013-10-02 06:20:55 C 00 57 35.79 -02 13 30.4 u H21
2013-10-02 06:25:43 C 00 57 37.10 -02 13 13.9 u H21
2013-10-02 23:55:48 C 01 02 53.25 -01 11 21.8 q 246
2013-10-02 23:56:12 C 01 02 53.34 -01 11 22.0 q 246
2013-10-02 23:56:42 C 01 02 53.49 -01 11 19.5 q 246
2013-10-02 23:57:33 C 01 02 53.84 -01 11 16.8 q 246
2013-10-02 23:57:59 C 01 02 53.94 -01 11 14.8 q 246
2013-10-02 23:59:02 C 01 02 54.22 -01 11 11.5 q 246
2013-10-03 09:45:20 C 01 05 57.781 -00 34 46.78 t 568
2013-10-03 09:46:48 C 01 05 58.207 -00 34 41.28 t 568
2013-10-03 09:48:16 C 01 05 58.607 -00 34 35.96 t 568
2013-10-03 14:55:30 C 01 07 31.06 -00 13 48.4 o 474
2013-10-03 15:01:36 C 01 07 32.87 -00 13 25.6 o 474