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
2025-09-17 22:02:54 B 00 05 34.243 +38 17 42.61 Z R68
2025-09-17 22:41:58 B 00 05 37.25 +38 17 02.0 V 130
2025-09-17 22:48:36 B 00 05 37.78 +38 16 55.0 V 130
2025-09-17 22:55:19 B 00 05 38.35 +38 16 47.7 V 130
2025-09-18 08:51:38 C 00 06 33.387 +38 05 54.57 X F52
2025-09-18 09:06:27 C 00 06 34.615 +38 05 38.19 X F52
2025-09-18 09:21:21 C 00 06 35.847 +38 05 21.67 X F52
2025-09-18 09:36:10 C 00 06 37.073 +38 05 05.06 X F52
2025-09-18 21:37:23 B 00 07 44.527 +37 50 45.74 Z R68
2025-09-18 21:40:33 B 00 07 44.810 +37 50 42.04 Z R68
2025-09-18 21:43:37 B 00 07 45.089 +37 50 38.51 Z R68
2025-09-18 22:48:33 C 00 07 50.561 +37 49 20.06 Z C23
2025-09-19 00:26:53 C 00 07 59.184 +37 47 20.90 Z C23
2025-09-19 11:04:28 C 00 08 59.866 +37 34 23.81 V T05
2025-09-19 11:09:04 C 00 09 00.245 +37 34 18.05 V T05
2025-09-19 11:18:14 C 00 09 01.027 +37 34 06.31 V T05
2025-09-19 11:33:55 C 00 09 02.378 +37 33 46.33 V T05
2025-09-19 20:29:53 C 00 09 56.155 +37 21 50.65 Z C23
2025-09-19 20:44:43 C 00 09 57.511 +37 21 30.74 Z C23
2025-09-19 21:44:04 C 00 10 02.995 +37 20 14.71 Z C23
2025-09-20 02:04:08 B 00 10 29.13 +37 14 26.7 Z W37
2025-09-20 02:42:22 B 00 10 32.73 +37 13 36.0 Z W37
2025-09-20 03:18:11 B 00 10 35.678 +37 12 47.34 W X04
2025-09-20 03:18:18 B 00 10 36.09 +37 12 48.6 Z W37
2025-09-20 03:29:00 B 00 10 36.679 +37 12 32.65 W X04
2025-09-20 03:37:15 B 00 10 37.406 +37 12 21.60 W X04
2025-09-20 19:56:45 C 00 12 16.52 +36 49 17.0 V 118
2025-09-20 23:01:24 C 00 12 34.16 +36 44 49.9 V 118
2025-09-21 00:08:07 C 00 12 40.49 +36 43 10.8 V 118
2025-09-21 19:33:38 B 00 14 43.63 +36 13 11.8 X L76
2025-09-21 19:36:21 C 00 14 44.470 +36 13 00.88 Z C23
2025-09-21 19:38:15 B 00 14 44.11 +36 13 04.3 X L76
2025-09-21 19:42:36 B 00 14 44.55 +36 12 57.4 X L76
2025-09-21 19:46:39 B 00 14 44.92 +36 12 51.0 X L76
2025-09-21 19:50:42 B 00 14 45.32 +36 12 44.6 X L76
2025-09-21 19:54:45 B 00 14 45.75 +36 12 38.3 X L76
2025-09-21 20:28:52 C 00 14 49.882 +36 11 38.26 Z C23
2025-09-21 20:44:52 B 00 14 51.566 +36 11 17.16 V 160
2025-09-21 20:48:35 B 00 14 51.950 +36 11 11.26 V 160
2025-09-21 20:52:23 B 00 14 52.334 +36 11 05.24 V 160
2025-09-21 22:05:57 C 00 14 58.634 +36 09 09.18 q S89
2025-09-21 22:07:27 C 00 14 58.790 +36 09 06.80 q S89
2025-09-21 22:09:00 C 00 14 58.934 +36 09 04.28 q S89
2025-09-21 22:13:09 C 00 14 59.347 +36 08 57.52 q S89
2025-09-21 22:14:40 C 00 14 59.484 +36 08 54.96 q S89
2025-09-22 23:44:39 B 00 17 46.22 +35 25 19.3 X L76
2025-09-22 23:50:25 B 00 17 46.82 +35 25 08.8 X L76
2025-09-22 23:56:12 B 00 17 47.43 +35 24 58.2 X L76
2025-09-23 00:01:59 B 00 17 48.04 +35 24 47.6 X L76
2025-09-23 00:07:45 B 00 17 48.64 +35 24 37.0 X L76