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
2018-12-10 23:48:21 C 04 36 44.51 -01 09 31.8 V C95
2018-12-10 23:50:03 C 04 36 44.44 -01 09 30.8 V C95
2018-12-10 23:51:44 C 04 36 44.38 -01 09 29.0 V C95
2018-12-10 23:53:26 C 04 36 44.30 -01 09 27.8 V C95
2018-12-11 00:40:12 C 04 36 42.49 -01 08 48.7 q C23
2018-12-11 00:46:40 C 04 36 42.25 -01 08 42.8 q C23
2018-12-11 00:55:17 C 04 36 41.96 -01 08 36.1 q C23
2018-12-12 09:34:48 C 04 35 30.07 -00 40 53.3 V T08
2018-12-12 09:37:37 C 04 35 29.97 -00 40 51.1 V T08
2018-12-12 09:46:32 C 04 35 29.60 -00 40 43.5 V T08
2018-12-12 09:49:16 C 04 35 29.52 -00 40 41.6 V T08
2018-12-12 09:51:24 C 04 35 29.39 -00 40 38.8 V T08
2018-12-12 09:58:18 C 04 35 29.16 -00 40 33.1 V T08
2018-12-12 10:01:00 C 04 35 29.03 -00 40 30.6 V T08
2018-12-12 10:03:04 C 04 35 28.96 -00 40 28.8 V T08
2018-12-12 10:05:51 C 04 35 28.84 -00 40 26.4 V T08
2018-12-12 10:09:56 C 04 35 28.67 -00 40 23.0 V T08
2018-12-12 10:12:44 C 04 35 28.55 -00 40 20.4 V T08
2018-12-12 10:14:43 C 04 35 28.39 -00 40 18.4 V T08
2018-12-12 10:17:27 C 04 35 28.36 -00 40 16.5 V T08
2018-12-12 10:26:29 C 04 35 28.02 -00 40 08.9 V T08
2018-12-12 10:29:09 C 04 35 27.95 -00 40 06.2 V T08
2018-12-14 06:27:44 C 04 33 52.96 -00 01 35.8 V G96
2018-12-14 06:36:28 C 04 33 52.62 -00 01 28.1 V G96
2018-12-14 06:45:12 C 04 33 52.32 -00 01 20.4 V G96
2018-12-14 06:53:59 C 04 33 52.00 -00 01 12.3 V G96
2018-12-14 07:34:42 C 04 33 50.00 -00 00 26.5 q W96
2018-12-14 07:49:47 C 04 33 49.47 -00 00 14.3 q W96
2018-12-15 11:25:59 C 04 32 52.14 +00 24 33.6 q D95
2018-12-15 11:32:12 C 04 32 51.84 +00 24 38.1 q D95
2018-12-15 11:36:53 C 04 32 51.70 +00 24 42.8 q D95
2018-12-15 12:03:10 C 04 32 50.64 +00 25 06.2 S D88
2018-12-15 12:08:02 C 04 32 50.49 +00 25 11.0 S D88
2018-12-15 12:12:53 C 04 32 50.40 +00 25 15.8 S D88
2018-12-16 09:08:29 C 04 32 06.89 +00 44 32.7 V T08
2018-12-16 09:20:18 C 04 32 06.46 +00 44 43.9 V T08
2018-12-16 09:32:38 C 04 32 06.02 +00 44 55.1 V T08
2018-12-16 09:46:06 C 04 32 05.52 +00 45 07.8 V T08
2018-12-18 09:10:27 C 04 30 30.73 +01 29 45.9 V T05
2018-12-18 09:13:17 C 04 30 30.65 +01 29 48.6 V T05
2018-12-18 09:22:15 C 04 30 30.31 +01 29 57.0 V T05
2018-12-18 09:24:57 C 04 30 30.23 +01 29 59.8 V T05
2018-12-18 09:34:07 C 04 30 29.90 +01 30 08.9 V T05
2018-12-18 09:36:47 C 04 30 29.80 +01 30 11.2 V T05
2018-12-18 09:45:45 C 04 30 29.46 +01 30 19.8 V T05
2018-12-18 09:48:34 C 04 30 29.39 +01 30 22.4 V T05
2018-12-18 23:07:02 C 04 30 03.79 +01 43 08.0 Q Z39
2018-12-18 23:18:29 C 04 30 03.37 +01 43 19.6 Q Z39
2018-12-18 23:29:57 C 04 30 03.01 +01 43 30.1 Q Z39
2018-12-24 09:23:38 C 04 26 15.03 +03 52 56.2 V T08