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
2019-02-02 19:55:12 C 04 32 18.37 +20 20 37.1 q I81
2019-02-02 20:00:24 C 04 32 18.57 +20 20 41.7 q I81
2019-02-02 20:05:37 C 04 32 18.77 +20 20 46.3 q I81
2019-02-03 18:37:33 C 04 33 14.48 +20 40 29.5 q C23
2019-02-03 18:43:47 C 04 33 14.79 +20 40 35.4 q C23
2019-02-03 22:03:42 C 04 33 22.76 +20 43 28.5 V B96
2019-02-03 22:10:44 C 04 33 23.19 +20 43 34.1 V B96
2019-02-03 22:20:09 C 04 33 23.52 +20 43 42.5 V B96
2019-02-04 21:00:43 C 04 34 22.03 +21 03 18.6 q 160
2019-02-04 21:05:41 C 04 34 22.17 +21 03 23.1 q 160
2019-02-04 21:10:38 C 04 34 22.42 +21 03 27.0 q 160
2019-02-04 22:34:59 C 04 34 25.98 +21 04 39.4 V C47
2019-02-04 22:41:21 C 04 34 26.30 +21 04 44.0 V C47
2019-02-04 22:48:16 C 04 34 26.62 +21 04 49.7 V C47
2019-02-05 08:12:25 C 04 34 51.52 +21 12 57.0 V T05
2019-02-05 08:25:22 C 04 34 52.01 +21 13 08.1 V T05
2019-02-05 08:38:14 C 04 34 52.58 +21 13 18.6 V T05
2019-02-05 08:54:58 C 04 34 53.40 +21 13 34.5 V T05
2019-02-05 20:22:40 C 04 35 24.29 +21 23 14.7 q 160
2019-02-05 20:27:05 C 04 35 24.48 +21 23 19.2 q 160
2019-02-05 20:31:31 C 04 35 24.66 +21 23 23.0 q 160
2019-02-06 17:45:20 S 04 36 23.36 +21 41 20.4 L C51
2019-02-06 20:49:18 C 04 36 31.69 +21 43 52.2 q 160
2019-02-06 20:53:50 S 04 36 32.09 +21 43 57.8 L C51
2019-02-06 20:54:45 C 04 36 31.95 +21 43 55.3 q 160
2019-02-06 21:00:13 C 04 36 32.22 +21 43 59.1 q 160
2019-02-07 00:02:19 S 04 36 40.92 +21 46 35.6 L C51
2019-02-07 04:44:10 S 04 36 54.18 +21 50 31.5 L C51
2019-02-07 04:44:21 S 04 36 54.17 +21 50 31.4 L C51
2019-02-07 06:19:09 S 04 36 58.72 +21 51 50.3 L C51
2019-02-07 07:53:24 S 04 37 03.12 +21 53 08.7 L C51
2019-02-07 09:27:39 S 04 37 07.66 +21 54 27.1 L C51
2019-02-07 11:01:54 S 04 37 12.13 +21 55 44.5 L C51
2019-02-07 12:35:58 S 04 37 16.58 +21 57 03.8 L C51
2019-02-07 14:10:13 S 04 37 21.05 +21 58 21.5 L C51
2019-02-07 20:27:13 S 04 37 39.11 +22 03 33.0 L C51
2019-02-07 23:35:32 S 04 37 48.19 +22 06 09.3 L C51
2019-02-08 03:19:44 C 04 37 59.08 +22 09 12.5 V G96
2019-02-08 03:27:46 C 04 37 59.45 +22 09 19.0 V G96
2019-02-08 03:35:48 C 04 37 59.83 +22 09 25.8 V G96
2019-02-08 03:43:50 C 04 38 00.32 +22 09 32.4 V G96
2019-02-15 19:42:14 C 04 47 57.74 +24 33 07.3 q 160
2019-02-15 19:46:14 C 04 47 58.04 +24 33 10.8 q 160
2019-02-18 18:19:35 C 04 52 17.84 +25 24 02.6 19.1 q 215
2019-02-18 18:21:03 C 04 52 17.92 +25 24 03.6 19.2 q 215
2019-02-18 18:22:32 C 04 52 18.06 +25 24 04.5 19.2 q 215
2019-02-18 19:39:25 C 04 52 22.58 +25 24 58.8 q 160
2019-02-18 19:43:01 C 04 52 22.89 +25 25 02.1 q 160
2019-02-18 19:46:37 C 04 52 23.12 +25 25 04.5 q 160
2019-02-23 18:25:05 C 05 00 14.93 +26 45 11.5 Q B96