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
2025-09-23 00:13:31 B 00 17 49.26 +35 24 26.4 X L76
2025-09-23 08:09:05 C 00 18 43.758 +35 10 09.12 V 703
2025-09-23 08:12:26 C 00 18 44.111 +35 10 02.71 V 703
2025-09-23 08:15:49 C 00 18 44.456 +35 09 56.34 V 703
2025-09-23 08:19:11 C 00 18 44.816 +35 09 50.18 V 703
2025-09-23 11:03:59 C 00 19 03.739 +35 04 49.44 V T05
2025-09-23 11:55:27 C 00 19 09.062 +35 03 11.74 V T05
2025-09-23 12:15:01 C 00 19 11.112 +35 02 34.30 V T05
2025-09-23 12:23:33 C 00 19 11.998 +35 02 17.92 V T05
2025-09-23 23:19:44 B 00 20 29.707 +34 41 02.69 V R51
2025-09-23 23:40:56 B 00 20 32.028 +34 40 21.90 V R51
2025-09-24 00:02:34 B 00 20 34.382 +34 39 39.10 V R51
2025-09-25 00:00:33 B 00 23 25.918 +33 49 56.32 W M07
2025-09-25 00:48:06 B 00 23 31.490 +33 48 11.88 W M07
2025-09-25 07:57:31 C 00 24 24.797 +33 32 39.62 V 703
2025-09-25 08:00:57 C 00 24 25.182 +33 32 31.56 V 703
2025-09-25 08:04:22 C 00 24 25.567 +33 32 24.11 V 703
2025-09-25 08:07:44 C 00 24 25.974 +33 32 16.58 V 703
2025-09-25 20:03:27 B 00 25 58.320 +33 04 45.37 V R51
2025-09-25 20:15:50 B 00 25 59.945 +33 04 16.86 V R51
2025-09-25 20:27:11 B 00 26 01.270 +33 03 50.90 V R51
2025-09-25 23:01:33 C 00 26 20.398 +32 58 00.88 V R17
2025-09-25 23:27:21 C 00 26 23.436 +32 57 00.72 V R17
2025-09-25 23:47:10 C 00 26 25.769 +32 56 14.42 V R17
2025-09-26 00:06:46 C 00 26 28.073 +32 55 28.42 V R17
2025-09-26 12:58:19 C 00 28 05.688 +32 24 11.94 X F51
2025-09-26 13:15:03 C 00 28 07.730 +32 23 29.25 X F51
2025-09-26 13:31:44 C 00 28 09.769 +32 22 46.78 X F51
2025-09-26 13:48:27 C 00 28 11.831 +32 22 03.86 X F51
2025-09-26 23:09:25 C 00 29 29.614 +31 58 14.34 V R17
2025-09-26 23:28:57 C 00 29 32.028 +31 57 24.41 V R17
2025-09-26 23:42:14 B 00 29 33.679 +31 56 50.14 X J51
2025-09-26 23:48:29 C 00 29 34.430 +31 56 34.33 V R17
2025-09-26 23:53:24 B 00 29 35.023 +31 56 21.59 X J51
2025-09-27 00:04:32 B 00 29 36.396 +31 55 52.75 X J51
2025-09-27 00:08:02 C 00 29 36.840 +31 55 43.97 V R17
2025-09-27 23:59:57 B 00 32 50.98 +30 50 31.7 X L76
2025-09-28 00:03:26 B 00 32 51.45 +30 50 21.6 X L76
2025-09-28 00:06:54 B 00 32 51.90 +30 50 11.6 X L76
2025-09-28 00:10:22 B 00 32 52.37 +30 50 01.6 X L76
2025-09-28 00:13:39 C 00 32 53.935 +30 49 52.90 Z C23
2025-09-28 00:13:50 B 00 32 52.83 +30 49 51.6 X L76
2025-09-28 00:17:19 B 00 32 53.29 +30 49 41.6 X L76
2025-09-28 00:20:47 B 00 32 53.75 +30 49 31.6 X L76
2025-09-28 00:24:15 B 00 32 54.21 +30 49 21.6 X L76
2025-09-28 00:27:43 B 00 32 54.68 +30 49 11.4 X L76
2025-09-28 00:31:12 B 00 32 55.14 +30 49 01.4 X L76
2025-09-28 01:00:59 C 00 33 00.199 +30 47 36.53 Z C23
2025-09-28 01:25:41 B 00 33 04.118 +30 46 42.38 X J51
2025-09-28 01:32:24 C 00 33 04.370 +30 46 06.60 Z C23