461397 (2001 SD170)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5286307280 ± 5.84e-09
Semi-major axis (a)2.2751639984 AU ± 3.51e-10
Inclination (i)25.26151009° ± 2.00e-06
Long. of Asc. Node (Ω)196.97761295° ± 1.32e-06
Arg. of Perihelion (ω)215.95715734° ± 3.08e-06
Mean Anomaly (M)2.33443672° ± 8.96e-07
Mean Motion (n)0.2872058064°/day ± 6.64e-11
Perihelion dist (q)1.07244240 AU ± 1.33e-08
Aphelion dist (Q)3.47788560 AU ± 1.33e-08
Orbital Period3.43177701 yr ± 7.93e-10
Physical Parameters
H (abs. magnitude)18.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.185″
Uncertainty0
Orbit TypeAmor
MOID0.134315 AU
Observations Used704
Oppositions18
Arc Total2001-2026
First Observation Used2001-07-25
Last Observation Used2026-01-27
Observations (736)
Date Type RA Dec Mag Band Observatory
2025-10-12 11:14:49 C 01 40 04.996 -00 06 20.08 X F51
2025-10-12 11:30:56 C 01 40 08.781 -00 08 30.30 X F51
2025-10-12 11:47:01 C 01 40 12.569 -00 10 40.43 X F51
2025-10-13 06:57:17 C 01 45 07.911 -02 47 49.69 V U68
2025-10-13 07:02:06 C 01 45 09.082 -02 48 29.47 V U68
2025-10-13 08:10:13 C 01 45 25.678 -02 57 53.69 V U74
2025-10-13 08:11:36 C 01 45 26.022 -02 58 05.49 V U74
2025-10-14 00:14:49 B 01 49 38.364 -05 12 00.25 X J51
2025-10-14 00:23:55 B 01 49 40.601 -05 13 16.86 X J51
2025-10-14 00:33:01 B 01 49 42.857 -05 14 33.36 X J51
2025-10-15 04:07:38 C 01 57 05.866 -09 07 14.38 V W68
2025-10-15 04:10:16 C 01 57 06.516 -09 07 36.70 V W68
2025-10-15 04:19:38 C 01 57 08.930 -09 08 56.47 V W68
2025-10-15 04:57:27 C 01 57 18.574 -09 14 18.06 V W68
2025-10-15 23:30:14 C 02 02 23.698 -11 52 30.58 V M22
2025-10-15 23:38:05 C 02 02 25.750 -11 53 37.39 V M22
2025-10-15 23:42:41 C 02 02 26.952 -11 54 16.45 V M22
2025-10-15 23:57:44 C 02 02 30.893 -11 56 24.83 V M22
2025-10-16 23:20:48 C 02 09 05.244 -15 15 09.94 V M22
2025-10-16 23:24:45 C 02 09 06.305 -15 15 43.31 V M22
2025-10-17 00:05:48 C 02 09 17.285 -15 21 29.70 V M22
2025-10-17 00:12:13 C 02 09 18.998 -15 22 23.88 V M22
2025-10-18 05:26:44 C 02 17 44.268 -19 26 40.06 V W68
2025-10-18 05:30:39 C 02 17 45.358 -19 27 12.20 V W68
2025-10-18 05:38:02 C 02 17 47.359 -19 28 13.04 V W68
2025-10-18 06:06:57 C 02 17 55.306 -19 32 10.43 V W68
2025-10-19 10:01:34 C 02 26 09.641 -23 18 23.15 V T08
2025-10-19 10:05:30 C 02 26 10.745 -23 18 54.40 V T08
2025-10-19 10:42:40 C 02 26 21.079 -23 23 48.55 V T08
2025-10-19 22:17:05 C 02 29 48.694 -24 53 24.68 V M22
2025-10-19 22:18:23 C 02 29 49.056 -24 53 34.69 V M22
2025-10-19 22:19:02 C 02 29 49.241 -24 53 39.77 V M22
2025-10-19 22:20:20 C 02 29 49.606 -24 53 49.96 V M22
2025-10-19 22:22:57 C 02 29 50.350 -24 54 10.37 V M22
2025-10-21 10:47:33 C 02 40 49.409 -29 26 27.02 V T05
2025-10-21 10:52:07 C 02 40 50.712 -29 26 59.89 V T05
2025-10-21 10:59:58 C 02 40 52.963 -29 27 56.20 V T05
2025-10-21 12:36:07 C 02 41 20.455 -29 39 20.16 V T05
2025-10-24 02:40:55 C 03 00 29.916 -36 25 55.45 V W68
2025-10-24 02:45:36 C 03 00 31.289 -36 26 23.93 V W68
2025-10-24 02:53:13 C 03 00 33.550 -36 27 10.01 V W68
2025-10-24 03:07:59 C 03 00 37.889 -36 28 39.47 V W68
2025-10-25 03:42:53 C 03 08 13.574 -38 49 59.12 V W68
2025-10-25 03:45:30 C 03 08 14.340 -38 50 13.81 V W68
2025-10-25 03:50:06 C 03 08 15.696 -38 50 39.26 V W68
2025-10-25 03:57:57 C 03 08 17.990 -38 51 23.22 V W68
2025-10-26 21:03:01 C 03 20 59.141 -42 22 28.67 V M22
2025-10-26 21:37:30 C 03 21 09.233 -42 25 15.67 V M22
2025-10-26 21:40:14 C 03 21 10.032 -42 25 28.99 V M22
2025-10-26 21:42:31 C 03 21 10.709 -42 25 39.90 V M22