171P

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2018-04-24 (JD 2458232.5)
Eccentricity (e)0.5019570017 ± 1.25e-07
Semi-major axis (a)3.5582083748 AU ± 6.48e-08
Inclination (i)21.93292046° ± 1.57e-05
Long. of Asc. Node (Ω)101.69970629° ± 2.31e-05
Arg. of Perihelion (ω)347.16355376° ± 8.33e-05
Mean Anomaly (M)321.12416402° ± 2.51e-05
Mean Motion (n)0.1468470444°/day ± 4.01e-09
Perihelion dist (q)1.77214077 AU ± 4.47e-07
Aphelion dist (Q)5.34427598 AU ± 4.57e-07
Orbital Period6.71192456 yr ± 1.83e-07
NGA Modelg(r)
A1-1.59975403e-09 ± 1.57e-10 AU/d²
A2-1.79469031e-09 ± 1.14e-12 AU/d²
Orbit Solution
SourceIAA
Solution Date2026-05-30
RMS Residual0.842″
Uncertainty0
Orbit TypeMBA
MOID0.793125 AU
Observations Used904
Oppositions24
Arc Total1998-2026
First Observation Used1998-11-13
Last Observation Used2025-09-30
Observations (960)
Date Type RA Dec Mag Band Observatory
2018-12-29 22:09:21 C 04 23 15.06 +06 11 36.1 q K81
2018-12-29 23:17:45 C 04 23 13.64 +06 12 48.2 q K81
2018-12-30 21:27:32 C 04 22 49.86 +06 36 21.5 q K81
2018-12-30 22:38:30 C 04 22 48.55 +06 37 37.0 q K81
2018-12-31 00:26:13 C 04 22 46.72 +06 39 32.4 Q Z39
2018-12-31 00:33:46 C 04 22 46.66 +06 39 42.1 Q Z39
2018-12-31 00:56:25 C 04 22 46.16 +06 40 05.7 Q Z39
2018-12-31 12:47:27 C 04 22 34.57 +06 52 43.7 u 367
2018-12-31 12:49:47 C 04 22 34.53 +06 52 46.0 u 367
2018-12-31 12:52:07 C 04 22 34.50 +06 52 49.0 u 367
2018-12-31 18:44:26 C 04 22 29.12 +06 59 04.0 q A77
2018-12-31 18:59:43 C 04 22 28.84 +06 59 19.6 q A77
2018-12-31 19:35:36 C 04 22 28.26 +06 59 57.9 q A77
2018-12-31 21:10:06 C 04 22 26.47 +07 01 39.7 q 160
2018-12-31 21:13:10 C 04 22 26.44 +07 01 42.3 q 160
2018-12-31 21:16:13 C 04 22 26.37 +07 01 45.4 q 160
2019-01-01 14:32:17 C 04 22 10.20 +07 20 24.5 V Q38
2019-01-01 14:36:30 C 04 22 10.32 +07 20 29.5 V Q38
2019-01-01 14:40:43 C 04 22 10.19 +07 20 35.0 V Q38
2019-01-01 18:41:59 C 04 22 07.25 +07 24 41.8 q K81
2019-01-01 19:55:56 C 04 22 06.12 +07 26 00.2 q K81
2019-01-01 20:51:51 C 04 22 05.11 +07 27 00.3 q K81
2019-01-01 21:32:49 C 04 22 04.50 +07 27 43.4 q 160
2019-01-01 21:36:54 C 04 22 04.41 +07 27 48.1 q 160
2019-01-01 21:40:59 C 04 22 04.39 +07 27 52.4 q 160
2019-01-01 21:49:45 C 04 22 04.20 +07 28 02.2 q K81
2019-01-02 18:01:26 C 04 21 48.35 +07 49 38.8 q C23
2019-01-02 18:05:35 C 04 21 48.31 +07 49 43.0 q C23
2019-01-02 21:50:37 C 04 21 45.02 +07 53 45.2 q 160
2019-01-02 21:54:02 C 04 21 44.99 +07 53 48.9 q 160
2019-01-02 21:57:28 C 04 21 44.89 +07 53 52.5 q 160
2019-01-03 09:19:49 C 04 21 36.52 +08 06 09.0 V T05
2019-01-03 09:32:27 C 04 21 36.36 +08 06 22.4 V T05
2019-01-03 09:44:19 C 04 21 36.19 +08 06 35.1 V T05
2019-01-03 09:56:54 C 04 21 36.01 +08 06 48.7 V T05
2019-01-03 13:09:18 C 04 21 33.96 +08 10 12.8 q Q11
2019-01-03 13:21:44 C 04 21 33.80 +08 10 26.2 q Q11
2019-01-03 13:34:08 C 04 21 33.63 +08 10 39.5 q Q11
2019-01-03 15:34:13 C 04 21 32.02 +08 12 47.4 m 349
2019-01-03 15:47:07 C 04 21 31.86 +08 13 01.0 m 349
2019-01-03 16:00:02 C 04 21 31.71 +08 13 15.3 m 349
2019-01-03 21:40:10 C 04 21 28.22 +08 19 20.0 q 160
2019-01-03 21:43:24 C 04 21 28.18 +08 19 23.4 q 160
2019-01-03 21:46:37 C 04 21 28.18 +08 19 27.0 q 160
2019-01-04 22:39:27 C 04 21 13.16 +08 46 12.5 Q Z39
2019-01-04 22:54:33 C 04 21 13.01 +08 46 28.5 Q Z39
2019-01-04 23:09:41 C 04 21 12.82 +08 46 43.5 Q Z39
2019-01-05 05:31:02 C 04 21 09.46 +08 53 34.3 V 703
2019-01-05 05:38:36 C 04 21 09.36 +08 53 41.7 V 703
2019-01-05 05:46:12 C 04 21 09.34 +08 53 50.4 V 703