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
1999-03-11 20:37:00 C 05 20 42.12 +29 30 55.0 046
1999-03-15 20:02:54 C 05 29 31.46 +30 18 44.3 118
1999-03-15 20:04:54 C 05 29 31.68 +30 18 45.3 118
1999-03-20 20:49:09 C 05 41 05.08 +31 12 43.5 587
1999-03-26 18:57:53 C 05 55 11.15 +32 07 00.2 046
1999-03-26 19:04:40 C 05 55 11.79 +32 07 02.8 046
1999-04-07 11:22:14 C 06 24 09.93 +33 25 30.9 360
1999-04-07 11:27:44 C 06 24 10.52 +33 25 32.0 360
1999-04-07 11:38:30 C 06 24 11.60 +33 25 33.6 360
1999-04-08 11:22:24 C 06 26 41.85 +33 30 29.7 402
1999-04-08 11:24:43 C 06 26 42.37 +33 30 30.7 402
1999-04-08 11:29:20 C 06 26 42.81 +33 30 30.8 402
1999-04-14 11:35:45 C 06 42 04.09 +33 55 00.2 360
1999-04-14 11:41:00 C 06 42 04.65 +33 55 00.3 360
1999-04-14 11:46:14 C 06 42 05.24 +33 55 01.4 360
1999-04-15 03:24:33 C 06 43 45.81 +33 57 05.7 693
1999-04-15 03:31:44 C 06 43 46.62 +33 57 08.3 693
1999-04-15 03:37:40 C 06 43 47.22 +33 57 07.7 693
1999-04-16 03:34:10 C 06 46 21.53 +34 00 07.2 693
1999-04-16 03:36:59 C 06 46 21.82 +34 00 07.5 693
2000-05-01 08:45:04 C 14 53 43.39 +11 23 08.4 695
2000-05-01 08:56:43 C 14 53 42.92 +11 23 09.6 695
2000-05-01 09:08:20 C 14 53 42.52 +11 23 10.4 695
2005-09-01 19:19:30 07 39 35.77 +17 29 31.1 372
2005-09-07 02:05:14 C 07 53 54.28 +17 37 11.4 o A79
2005-09-07 02:17:59 C 07 53 55.62 +17 37 10.7 o A79
2005-09-07 11:28:37 C 07 54 57.48 +17 37 38.2 r 703
2005-09-07 11:36:11 C 07 54 58.29 +17 37 38.8 r 703
2005-09-07 11:42:07 C 07 54 59.04 +17 37 38.8 r 703
2005-09-07 11:44:39 C 07 54 59.29 +17 37 40.0 r 703
2005-09-07 11:51:37 C 07 55 00.15 +17 37 40.0 r 703
2005-09-07 11:54:08 C 07 55 00.26 +17 37 40.5 r 703
2005-09-07 11:56:37 C 07 55 00.62 +17 37 39.9 r 703
2005-09-07 11:59:09 C 07 55 00.87 +17 37 40.1 r 703
2005-09-10 02:39:42 C 08 02 03.12 +17 40 21.7 o A79
2005-09-10 02:47:55 C 08 02 03.97 +17 40 21.3 o A79
2005-09-10 02:56:21 C 08 02 04.95 +17 40 22.2 o A79
2005-09-11 02:53:32 C 08 04 46.07 +17 41 18.5 o A79
2005-09-11 03:08:47 C 08 04 47.54 +17 41 13.9 o A79
2005-09-12 19:09:29 08 09 16.14 +17 42 30.8 372
2005-09-12 19:33:29 08 09 18.76 +17 42 32.3 372
2005-09-16 19:15:55 C 08 19 57.75 +17 44 40.5 m 349
2005-09-16 19:20:18 C 08 19 58.25 +17 44 40.4 m 349
2005-10-22 11:04:56 C 09 50 48.66 +17 31 30.6 c 691
2005-10-22 11:22:50 C 09 50 50.45 +17 31 30.5 c 691
2005-10-22 11:40:45 C 09 50 52.23 +17 31 30.0 c 691
2005-10-25 01:16:21 C 09 56 59.77 +17 30 24.0 c A79
2005-10-25 01:25:06 C 09 57 00.71 +17 30 23.3 c A79
2005-10-31 03:12:17 C 10 11 13.88 +17 29 02.5 r 215
2005-11-08 18:20:45 C 10 30 41.53 +17 31 33.3 m 349