2017 ST20

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1716889618 ± 5.68e-08
Semi-major axis (a)1.3126793709 AU ± 2.01e-09
Inclination (i)15.42017443° ± 6.91e-06
Long. of Asc. Node (Ω)188.63654197° ± 6.75e-06
Arg. of Perihelion (ω)268.55032951° ± 3.25e-05
Mean Anomaly (M)86.78785908° ± 2.45e-05
Mean Motion (n)0.6553514819°/day ± 1.51e-09
Perihelion dist (q)1.08730681 AU ± 7.45e-08
Aphelion dist (Q)1.53805193 AU ± 7.46e-08
Orbital Period1.50396590 yr ± 3.46e-09
Physical Parameters
H (abs. magnitude)22.63
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.210″
Uncertainty0
Orbit TypeAmor
MOID0.224045 AU
Observations Used118
Oppositions3
Arc Total2014-2023
First Observation Used2014-09-23
Last Observation Used2023-10-16
Observations (121)
Date Type RA Dec Mag Band Observatory
2023-09-16 08:04:49 C 01 47 25.120 +17 57 41.04 V G96
2023-09-16 08:12:15 C 01 47 25.332 +17 57 31.46 V G96
2023-09-16 08:19:41 C 01 47 25.674 +17 57 22.64 V G96
2023-10-05 08:59:52 C 02 01 32.927 +03 07 13.19 V G96
2023-10-05 09:07:15 C 02 01 33.028 +03 06 54.14 V G96
2023-10-05 09:14:39 C 02 01 33.082 +03 06 34.52 V G96
2023-10-05 09:22:02 C 02 01 33.157 +03 06 14.72 V G96
2023-10-08 10:50:47 C 02 02 42.854 -00 15 01.61 X F51
2023-10-08 11:14:49 C 02 02 42.946 -00 16 09.84 X F51
2023-10-08 11:32:57 C 02 02 43.015 -00 17 00.94 X F51
2023-10-08 11:51:07 C 02 02 43.093 -00 17 52.36 X F51
2023-10-11 09:46:30 C 02 03 32.696 -03 40 50.34 X F52
2023-10-11 10:21:27 C 02 03 32.701 -03 42 34.21 X F52
2023-10-11 10:38:58 C 02 03 32.695 -03 43 26.44 X F52
2023-10-15 09:00:56 C 02 04 15.268 -08 28 51.24 X F52
2023-10-15 09:41:28 C 02 04 15.091 -08 30 55.64 X F52
2023-10-15 10:01:47 C 02 04 14.999 -08 31 58.17 X F52
2023-10-16 06:53:12 C 02 04 20.968 -09 36 04.97 V G96
2023-10-16 07:00:44 C 02 04 20.950 -09 36 28.26 V G96
2023-10-16 07:08:17 C 02 04 20.906 -09 36 51.37 V G96
2023-10-16 07:15:51 C 02 04 20.860 -09 37 14.77 V G96