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
2001-09-29 02:29:24 C 04 46 27.32 +19 14 02.0 c 046
2001-10-05 02:48:46 C 05 25 06.55 +09 03 01.5 c 118
2001-10-05 02:51:44 C 05 25 07.38 +09 02 47.9 c 118
2001-10-11 02:50:16 C 06 00 46.18 -01 48 52.7 c 118
2001-10-11 02:58:15 C 06 00 48.08 -01 49 28.6 c 118
2001-10-11 03:01:58 C 06 00 48.92 -01 49 45.0 c 118
2001-10-13 02:48:52 C 06 11 48.03 -05 19 49.5 c 118
2001-10-13 02:53:06 C 06 11 48.96 -05 20 07.2 c 118
2001-10-13 02:54:34 C 06 11 49.28 -05 20 14.0 c 118
2001-10-25 11:34:43 C 07 09 36.90 -23 20 02.2 d 649
2001-10-25 11:36:13 C 07 09 37.15 -23 20 05.6 d 649
2001-10-25 11:39:15 C 07 09 37.61 -23 20 14.5 d 649
2001-10-25 11:42:20 C 07 09 38.12 -23 20 23.6 d 649
2001-11-03 17:54:44 C 07 42 04.18 -32 11 59.6 e 413
2001-11-03 17:58:40 C 07 42 04.58 -32 12 07.9 e 413
2001-12-03 17:12:02 C 08 39 17.41 -45 39 45.4 e 413
2001-12-03 17:15:50 C 08 39 17.51 -45 39 47.8 e 413
2001-12-03 17:19:39 C 08 39 17.62 -45 39 49.7 e 413
2002-01-01 15:59:43 C 08 41 14.51 -47 25 55.3 e 413
2002-01-01 17:04:37 C 08 41 12.50 -47 25 37.1 e 413
2002-01-01 17:09:06 C 08 41 12.35 -47 25 35.8 e 413
2002-02-11 16:14:45 C 08 12 52.09 -32 13 41.5 e 413
2002-02-11 16:18:04 C 08 12 52.06 -32 13 36.2 e 413
2002-02-11 16:21:21 C 08 12 52.03 -32 13 31.4 e 413
2004-07-20 08:41:22 C 17 44 54.295 +14 29 59.85 o 568
2004-07-20 08:46:47 C 17 44 54.071 +14 29 58.84 o 568
2004-07-21 08:28:36 C 17 43 58.212 +14 24 53.93 o 568
2004-07-21 08:34:33 C 17 43 57.969 +14 24 52.59 o 568
2007-05-22 04:50:48 C 16 43 47.09 +05 33 22.0 23.6 o H55
2007-05-22 05:25:22 C 16 43 45.64 +05 33 32.0 23.5 o H55
2007-05-22 05:59:53 C 16 43 44.25 +05 33 41.7 23.5 o H55
2008-10-03 11:42:20 C 08 27 20.02 -02 28 38.7 o 291
2008-10-03 11:47:51 C 08 27 20.77 -02 28 44.8 o 291
2008-10-03 11:53:12 C 08 27 21.61 -02 28 51.9 o 291
2016-02-04 07:11:33 C 12 36 09.66 -20 57 48.2 u 807
2016-02-04 07:19:23 C 12 36 09.53 -20 57 47.3 u 807
2016-02-04 07:27:26 C 12 36 09.45 -20 57 46.0 u 807
2016-03-04 11:57:02 C 12 15 17.068 -16 21 18.56 L F51
2016-03-04 12:13:10 C 12 15 16.335 -16 21 08.68 L F51
2016-03-04 12:29:12 C 12 15 15.592 -16 20 59.09 L F51
2016-03-12 10:55:32 C 12 06 33.661 -14 19 10.95 L F51
2016-03-12 11:14:29 C 12 06 32.738 -14 18 58.06 L F51
2016-03-28 04:21:57 C 11 49 35.81 -09 51 20.0 L W84
2016-03-28 04:26:31 C 11 49 35.61 -09 51 16.9 L W84
2016-03-28 04:31:08 C 11 49 35.41 -09 51 13.5 L W84
2016-03-28 04:35:43 C 11 49 35.22 -09 51 10.2 L W84
2016-03-28 04:40:22 C 11 49 35.02 -09 51 06.8 L W84
2016-03-29 03:37:26 C 11 48 38.91 -09 34 42.8 L W84
2016-03-29 03:42:01 C 11 48 38.71 -09 34 39.5 L W84
2016-03-29 03:46:35 C 11 48 38.52 -09 34 36.3 L W84