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
2001-07-25 10:19:30 C 23 58 26.71 +34 33 26.8 o 644
2001-07-25 10:35:05 C 23 58 28.09 +34 33 37.4 o 644
2001-09-20 09:37:02 C 03 48 57.83 +30 23 46.0 17.8 c 704
2001-09-20 09:58:52 C 03 49 03.59 +30 22 52.0 18.0 c 704
2001-09-20 10:19:29 C 03 49 09.00 +30 22 01.0 18.1 c 704
2001-09-20 10:40:38 C 03 49 14.61 +30 21 07.8 18.9 c 704
2001-09-20 11:01:38 C 03 49 20.14 +30 20 15.4 18.2 c 704
2001-09-21 00:24:23 C 03 52 59.82 +29 46 05.9 d 946
2001-09-21 00:32:57 C 03 53 02.10 +29 45 44.6 d 946
2001-09-21 00:36:29 C 03 53 03.05 +29 45 35.9 d 946
2001-09-21 00:44:21 C 03 53 05.18 +29 45 16.0 d 946
2001-09-21 00:51:00 C 03 53 06.72 +29 44 58.9 c 511
2001-09-21 00:57:09 C 03 53 08.38 +29 44 43.0 c 511
2001-09-21 01:11:38 C 03 53 12.29 +29 44 05.5 c 511
2001-09-21 01:17:50 C 03 53 13.96 +29 43 49.7 c 511
2001-09-21 09:22:36 C 03 55 26.12 +29 22 43.7 17.6 c 704
2001-09-21 09:39:30 C 03 55 30.44 +29 21 54.6 j 918
2001-09-21 09:40:47 C 03 55 30.95 +29 21 56.1 17.4 c 704
2001-09-21 09:42:18 C 03 55 31.20 +29 21 47.2 j 918
2001-09-21 09:43:44 C 03 55 31.76 +29 21 48.0 18.1 c 704
2001-09-21 09:45:26 C 03 55 31.98 +29 21 39.0 j 918
2001-09-21 09:48:37 C 03 55 32.83 +29 21 30.6 j 918
2001-09-21 10:01:18 C 03 55 36.39 +29 21 01.8 17.6 c 704
2001-09-21 10:05:20 C 03 55 37.47 +29 20 51.0 18.0 c 704
2001-09-21 10:21:48 C 03 55 41.83 +29 20 07.5 17.6 c 704
2001-09-21 10:26:07 C 03 55 43.01 +29 19 55.7 18.0 c 704
2001-09-21 10:42:20 C 03 55 47.30 +29 19 12.9 17.6 c 704
2001-09-21 10:46:51 C 03 55 48.48 +29 19 00.7 18.0 c 704
2001-09-21 11:02:52 C 03 55 52.74 +29 18 18.3 17.9 c 704
2001-09-22 08:12:49 C 04 01 41.80 +28 20 22.3 17.7 c 704
2001-09-22 08:33:54 C 04 01 47.47 +28 19 23.4 17.9 c 704
2001-09-22 08:57:32 C 04 01 53.76 +28 18 17.2 18.0 c 704
2001-09-22 09:18:19 C 04 01 59.33 +28 17 19.2 18.1 c 704
2001-09-22 09:38:43 C 04 02 04.80 +28 16 21.8 17.8 c 704
2001-09-22 22:20:28 C 04 05 34.92 +27 39 47.2 c 611
2001-09-22 22:24:25 C 04 05 35.98 +27 39 35.7 c 611
2001-09-22 22:27:53 C 04 05 36.94 +27 39 26.3 c 611
2001-09-22 23:48:34 C 04 05 58.85 +27 35 34.1 d 557
2001-09-22 23:49:44 C 04 05 59.16 +27 35 30.7 d 557
2001-09-22 23:51:25 C 04 05 59.60 +27 35 25.8 d 557
2001-09-23 02:39:29 C 04 06 45.02 +27 27 18.1 c 046
2001-09-23 02:41:39 C 04 06 45.58 +27 27 11.4 c 046
2001-09-23 02:42:44 C 04 06 45.88 +27 27 09.0 c 046
2001-09-23 02:45:06 C 04 06 46.53 +27 27 00.7 c 046
2001-09-23 09:30:04 C 04 08 38.72 +27 07 06.9 17.7 c 704
2001-09-23 09:40:25 C 04 08 41.48 +27 06 36.6 17.7 c 704
2001-09-23 09:40:37 C 04 08 41.57 +27 06 35.7 16.7 c 704
2001-09-23 09:52:33 C 04 08 44.78 +27 05 59.4 18.0 c 704
2001-09-23 10:01:04 C 04 08 47.02 +27 05 34.8 17.8 c 704
2001-09-23 10:01:11 C 04 08 47.09 +27 05 34.5 16.9 c 704