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
2025-09-12 10:07:41 C 23 54 52.315 +40 04 43.32 V T08
2025-09-12 10:15:07 C 23 54 52.824 +40 04 39.14 V T08
2025-09-12 10:22:25 C 23 54 53.294 +40 04 34.90 V T08
2025-09-12 20:51:19 C 23 55 41.042 +39 58 13.37 V R17
2025-09-12 21:12:40 C 23 55 42.526 +39 58 01.74 V R17
2025-09-12 21:34:09 C 23 55 44.054 +39 57 50.22 V R17
2025-09-12 21:55:25 C 23 55 45.547 +39 57 38.20 V R17
2025-09-14 07:29:09 C 23 58 17.526 +39 35 24.58 V G96
2025-09-14 07:36:37 C 23 58 18.044 +39 35 19.03 V G96
2025-09-14 07:44:03 C 23 58 18.574 +39 35 13.78 V G96
2025-09-14 07:51:31 C 23 58 19.096 +39 35 08.34 V G96
2025-09-14 11:07:35 C 23 58 34.349 +39 32 50.21 V T05
2025-09-14 11:12:11 C 23 58 34.656 +39 32 46.93 V T05
2025-09-14 11:20:48 C 23 58 35.261 +39 32 40.42 V T05
2025-09-14 11:49:02 C 23 58 37.243 +39 32 20.51 V T05
2025-09-15 05:59:17 C 00 00 05.634 +39 18 11.27 V 703
2025-09-15 06:00:02 C 00 00 05.735 +39 18 09.76 V 703
2025-09-15 06:02:39 C 00 00 05.839 +39 18 08.64 V 703
2025-09-15 06:03:23 C 00 00 05.965 +39 18 07.49 V 703
2025-09-15 06:06:00 C 00 00 06.080 +39 18 06.12 V 703
2025-09-15 06:06:45 C 00 00 06.206 +39 18 04.28 V 703
2025-09-15 06:09:22 C 00 00 06.318 +39 18 02.99 V 703
2025-09-15 06:10:06 C 00 00 06.412 +39 18 01.37 V 703
2025-09-15 09:29:08 C 00 00 22.572 +39 15 25.27 V T08
2025-09-15 09:33:07 C 00 00 22.853 +39 15 22.00 V T08
2025-09-15 09:41:04 C 00 00 23.438 +39 15 15.59 V T08
2025-09-15 09:55:02 C 00 00 24.456 +39 15 04.46 V T08
2025-09-15 23:53:46 B 00 01 32.30 +39 02 56.4 X L76
2025-09-15 23:59:09 B 00 01 32.74 +39 02 51.6 X L76
2025-09-16 00:04:32 B 00 01 33.16 +39 02 46.7 X L76
2025-09-16 00:09:56 B 00 01 33.57 +39 02 41.3 X L76
2025-09-16 00:15:19 B 00 01 34.03 +39 02 36.9 X L76
2025-09-16 03:03:02 C 00 01 48.190 +39 00 17.57 V R17
2025-09-16 03:22:35 C 00 01 49.680 +38 59 59.82 V R17
2025-09-16 03:42:49 C 00 01 51.211 +38 59 40.81 V R17
2025-09-16 04:03:13 C 00 01 52.754 +38 59 21.48 V R17
2025-09-16 11:08:52 C 00 02 29.774 +38 53 00.56 V T08
2025-09-16 11:14:30 C 00 02 30.204 +38 52 55.27 V T08
2025-09-16 11:23:24 C 00 02 30.876 +38 52 46.88 V T08
2025-09-16 12:12:50 C 00 02 34.639 +38 51 59.87 V T08
2025-09-17 09:20:14 C 00 04 26.074 +38 31 20.86 V T08
2025-09-17 09:24:55 C 00 04 26.446 +38 31 16.21 V T08
2025-09-17 09:32:26 C 00 04 27.053 +38 31 08.47 V T08
2025-09-17 09:46:24 C 00 04 28.142 +38 30 54.54 V T08
2025-09-17 10:47:28 C 00 04 32.993 +38 29 51.50 V T05
2025-09-17 11:01:06 C 00 04 34.063 +38 29 37.32 V T05
2025-09-17 11:05:27 C 00 04 34.387 +38 29 32.89 V T05
2025-09-17 11:23:39 C 00 04 35.842 +38 29 13.99 V T05
2025-09-17 21:59:29 B 00 05 33.953 +38 17 45.85 Z R68
2025-09-17 22:01:11 B 00 05 34.090 +38 17 44.05 Z R68