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
2019-01-05 05:53:47 C 04 21 09.26 +08 53 58.2 V 703
2019-01-05 21:00:00 C 04 21 01.84 +09 10 08.4 a 233
2019-01-05 21:07:30 C 04 21 02.12 +09 10 16.5 a 233
2019-01-05 21:16:54 C 04 21 01.76 +09 10 27.6 a 233
2019-01-05 23:52:20 C 04 21 00.36 +09 13 13.4 Q I72
2019-01-06 00:27:04 C 04 20 59.99 +09 13 51.3 Q I72
2019-01-06 01:01:43 C 04 20 59.74 +09 14 28.0 Q I72
2019-01-06 08:31:28 C 04 20 56.90 +09 22 36.6 V T08
2019-01-06 08:55:32 C 04 20 56.67 +09 23 01.4 V T08
2019-01-06 09:03:39 C 04 20 56.58 +09 23 10.0 V T08
2019-01-06 09:21:35 C 04 20 56.43 +09 23 29.2 V T08
2019-01-06 20:42:04 C 04 20 52.28 +09 35 35.8 q 160
2019-01-06 20:45:17 C 04 20 52.28 +09 35 39.3 q 160
2019-01-06 20:48:55 C 04 20 52.28 +09 35 43.6 q 160
2019-01-06 22:21:43 C 04 20 51.56 +09 37 23.1 V I89
2019-01-06 22:26:04 C 04 20 51.53 +09 37 27.3 V I89
2019-01-07 09:54:33 C 04 20 47.611 +09 49 48.63 U F51
2019-01-07 10:14:58 C 04 20 47.463 +09 50 10.60 U F51
2019-01-07 10:35:23 C 04 20 47.329 +09 50 32.40 U F51
2019-01-07 10:55:46 C 04 20 47.158 +09 50 54.53 U F51
2019-01-08 09:02:06 C 04 20 42.06 +10 14 34.9 V T05
2019-01-08 09:23:23 C 04 20 41.88 +10 14 57.6 V T05
2019-01-08 09:31:44 C 04 20 41.83 +10 15 06.9 V T05
2019-01-08 09:49:07 C 04 20 41.76 +10 15 25.5 V T05
2019-01-08 23:33:10 C 04 20 39.61 +10 30 04.3 q J22
2019-01-08 23:41:36 C 04 20 39.55 +10 30 14.3 q J22
2019-01-08 23:44:26 C 04 20 39.56 +10 30 17.2 q J22
2019-01-09 08:47:48 C 04 20 38.57 +10 39 59.1 V T08
2019-01-09 08:59:38 C 04 20 38.52 +10 40 11.9 V T08
2019-01-09 09:11:28 C 04 20 38.45 +10 40 24.4 V T08
2019-01-09 09:23:11 C 04 20 38.38 +10 40 36.7 V T08
2019-01-12 08:39:17 C 04 20 43.12 +11 56 19.4 V T05
2019-01-12 09:02:58 C 04 20 43.22 +11 56 44.2 V T05
2019-01-12 09:10:19 C 04 20 43.21 +11 56 51.8 V T05
2019-01-12 09:10:58 C 04 20 43.25 +11 56 52.9 V T05
2019-01-12 19:59:26 C 04 20 46.27 +12 08 17.1 Q Z55
2019-01-12 20:01:44 C 04 20 46.28 +12 08 18.4 Q Z55
2019-01-12 20:03:38 C 04 20 46.35 +12 08 21.0 Q Z55
2019-01-12 20:05:28 C 04 20 46.39 +12 08 21.6 Q Z55
2019-01-12 20:07:22 C 04 20 46.29 +12 08 22.2 Q Z55
2019-01-12 20:09:17 C 04 20 46.37 +12 08 26.4 Q Z55
2019-01-14 11:57:39 C 04 21 00.68 +12 50 12.8 S D88
2019-01-14 12:02:29 C 04 21 00.73 +12 50 19.0 S D88
2019-01-14 12:07:21 C 04 21 00.80 +12 50 25.0 S D88
2019-01-14 19:29:35 C 04 21 04.36 +12 58 03.9 q 160
2019-01-14 19:33:02 C 04 21 04.42 +12 58 08.4 q 160
2019-01-14 19:36:28 C 04 21 04.42 +12 58 12.1 q 160
2019-01-14 20:32:04 C 04 21 04.79 +12 59 10.6 V B74
2019-01-14 20:42:51 C 04 21 04.95 +12 59 22.1 V B74
2019-01-14 20:54:16 C 04 21 04.96 +12 59 33.4 V B74