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
2018-10-22 02:23:21 C 04 59 59.42 -07 42 10.2 q C10
2018-10-29 16:24:38 C 05 01 17.44 -07 46 21.4 m 349
2018-10-29 17:25:16 C 05 01 17.43 -07 46 20.1 m 349
2018-11-01 18:12:15 C 05 01 14.71 -07 43 50.7 q D29
2018-11-01 18:32:36 C 05 01 14.62 -07 43 50.0 q D29
2018-11-01 18:52:58 C 05 01 14.52 -07 43 48.5 q D29
2018-11-03 00:45:58 C 05 01 07.80 -07 41 58.9 q C23
2018-11-03 00:56:22 C 05 01 07.71 -07 41 58.5 q C23
2018-11-05 13:29:53 C 05 00 43.18 -07 36 35.6 V T08
2018-11-05 13:44:32 C 05 00 43.07 -07 36 33.9 V T08
2018-11-05 13:59:57 C 05 00 42.89 -07 36 32.6 V T08
2018-11-05 14:14:42 C 05 00 42.77 -07 36 31.1 V T08
2018-11-06 13:11:21 C 05 00 30.06 -07 33 53.5 V T08
2018-11-06 13:19:37 C 05 00 29.98 -07 33 52.3 V T08
2018-11-06 13:25:52 C 05 00 29.93 -07 33 51.7 V T08
2018-11-06 13:34:07 C 05 00 29.81 -07 33 50.7 V T08
2018-11-06 13:40:17 C 05 00 29.75 -07 33 49.8 V T08
2018-11-06 13:48:38 C 05 00 29.64 -07 33 48.7 V T08
2018-11-06 13:54:50 C 05 00 29.56 -07 33 48.1 V T08
2018-11-06 14:03:14 C 05 00 29.51 -07 33 46.0 V T08
2018-11-08 02:07:52 C 05 00 05.72 -07 28 57.1 U G40
2018-11-08 02:17:42 C 05 00 05.60 -07 28 56.0 U G40
2018-11-08 02:30:52 C 05 00 05.35 -07 28 53.2 q J22
2018-11-08 02:39:36 C 05 00 05.26 -07 28 53.1 q J22
2018-11-08 02:42:25 C 05 00 05.17 -07 28 52.8 q J22
2018-11-10 13:00:47 C 04 59 16.05 -07 19 06.3 V T08
2018-11-10 13:15:14 C 04 59 15.78 -07 19 02.6 V T08
2018-11-10 13:17:20 C 04 59 15.78 -07 19 02.7 V T08
2018-11-10 13:23:34 C 04 59 15.69 -07 19 01.5 V T08
2018-11-10 13:29:45 C 04 59 15.53 -07 18 59.7 V T08
2018-11-10 13:31:52 C 04 59 15.49 -07 18 59.5 V T08
2018-11-10 13:38:01 C 04 59 15.42 -07 18 58.9 V T08
2018-11-10 13:44:22 C 04 59 15.33 -07 18 57.7 V T08
2018-11-10 13:46:21 C 04 59 15.24 -07 18 56.4 V T08
2018-11-10 13:52:36 C 04 59 15.11 -07 18 55.8 V T08
2018-11-10 14:00:57 C 04 59 15.04 -07 18 53.9 V T08
2018-11-12 12:58:23 C 04 58 26.87 -07 09 11.6 V T05
2018-11-12 13:12:47 C 04 58 26.57 -07 09 08.2 V T05
2018-11-12 13:27:09 C 04 58 26.27 -07 09 05.2 V T05
2018-11-12 13:41:45 C 04 58 25.98 -07 09 01.8 V T05
2018-11-13 08:58:18 C 04 58 04.23 -07 04 35.3 V G96
2018-11-13 09:05:50 C 04 58 04.07 -07 04 32.6 V G96
2018-11-13 09:13:22 C 04 58 03.90 -07 04 31.0 V G96
2018-11-13 09:20:56 C 04 58 03.76 -07 04 29.0 V G96
2018-11-13 12:06:00 C 04 58 00.457 -07 03 46.69 U F52
2018-11-13 12:26:01 C 04 58 00.005 -07 03 41.83 U F52
2018-11-13 12:45:48 C 04 57 59.570 -07 03 37.05 U F52
2018-11-13 13:05:37 C 04 57 59.125 -07 03 32.15 U F52
2018-11-14 04:53:54 C 04 57 39.84 -06 59 36.4 Q J24
2018-11-14 05:17:54 C 04 57 39.30 -06 59 29.7 Q J24