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
2005-11-08 18:24:58 C 10 30 41.87 +17 31 33.4 m 349
2005-11-08 18:29:11 C 10 30 42.31 +17 31 34.3 m 349
2005-12-01 10:42:05 C 11 16 48.32 +18 19 22.8 r 703
2005-12-01 10:54:57 C 11 16 49.33 +18 19 26.0 r 703
2005-12-01 11:07:23 C 11 16 50.41 +18 19 25.8 r 703
2005-12-01 11:20:00 C 11 16 51.31 +18 19 28.6 r 703
2005-12-09 18:30:44 C 11 31 30.09 +18 58 08.2 m 349
2005-12-09 18:35:57 C 11 31 30.48 +18 58 09.7 m 349
2006-01-07 18:08:27 C 12 09 54.95 +23 10 52.4 m 349
2006-01-07 18:24:51 C 12 09 55.63 +23 10 59.9 m 349
2006-02-02 22:34:52 C 12 21 45.64 +29 19 41.9 r 130
2006-02-03 00:35:47 C 12 21 45.32 +29 20 58.7 r 130
2006-02-06 01:21:50 C 12 21 27.74 +30 06 54.2 o 941
2006-02-06 01:28:50 C 12 21 27.64 +30 06 58.3 o 941
2006-02-06 01:32:17 C 12 21 27.60 +30 07 00.6 o 941
2006-02-06 01:42:36 C 12 21 27.44 +30 07 07.4 o 941
2006-02-06 01:46:18 C 12 21 27.40 +30 07 09.7 o 941
2011-10-19 13:16:21 C 00 51 04.95 -32 18 03.5 o E10
2011-10-19 13:19:18 C 00 51 04.83 -32 18 03.3 o E10
2011-10-19 13:22:16 C 00 51 04.75 -32 18 03.7 o E10
2011-10-20 13:07:03 C 00 50 12.27 -32 18 33.7 o E10
2011-10-20 13:13:47 C 00 50 12.03 -32 18 33.9 o E10
2011-10-24 13:52:46 C 00 46 45.07 -32 16 24.2 o E10
2011-10-24 14:01:16 C 00 46 44.77 -32 16 23.6 o E10
2011-12-22 16:06:22 C 00 43 38.84 -21 22 42.5 v C32
2011-12-22 16:12:56 C 00 43 39.03 -21 22 35.6 v C32
2011-12-22 16:19:26 C 00 43 39.29 -21 22 34.8 v C32
2011-12-26 19:04:48 C 00 47 06.85 -20 09 20.4 o C10
2011-12-26 19:19:11 C 00 47 07.40 -20 09 09.6 o C10
2011-12-27 18:00:59 C 00 47 58.60 -19 52 04.1 r 215
2011-12-27 18:04:40 C 00 47 58.74 -19 52 01.1 r 215
2011-12-27 18:08:21 C 00 47 58.86 -19 51 58.3 r 215
2012-01-20 16:24:47 C 01 15 50.47 -12 13 36.5 r C32
2012-01-20 16:37:43 C 01 15 51.20 -12 13 25.0 r C32
2012-01-20 16:44:09 C 01 15 51.53 -12 13 19.3 r C32
2012-02-21 02:19:33 C 02 07 09.45 -01 34 45.3 c H06
2012-02-21 02:22:48 C 02 07 09.68 -01 34 42.4 c H06
2012-02-21 02:26:05 C 02 07 09.93 -01 34 39.2 c H06
2012-02-21 02:29:21 C 02 07 10.22 -01 34 37.3 c H06
2012-02-22 18:36:54 C 02 10 17.41 -01 00 37.1 u 215
2012-02-22 18:39:40 C 02 10 17.64 -01 00 34.5 u 215
2012-02-22 18:42:25 C 02 10 17.84 -01 00 31.5 u 215
2012-03-13 02:11:02 C 02 48 52.64 +05 24 50.2 c H06
2012-03-13 02:12:40 C 02 48 52.81 +05 24 51.9 c H06
2012-03-13 16:57:00 C 02 50 10.85 +05 36 46.1 v C32
2012-03-13 17:03:48 C 02 50 11.51 +05 36 45.3 v C32
2012-04-12 02:55:05 C 03 57 36.63 +14 25 20.6 c H06
2012-04-12 03:01:32 C 03 57 37.24 +14 25 24.7 c H06
2018-09-14 10:04:48 C 04 28 59.64 -05 51 33.2 o 691
2018-09-14 10:37:14 C 04 29 01.30 -05 51 36.8 o 691