2017 SY20

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5558006358 ± 3.63e-05
Semi-major axis (a)2.3532764775 AU ± 1.99e-04
Inclination (i)5.44895707° ± 2.56e-04
Long. of Asc. Node (Ω)204.25035277° ± 2.92e-05
Arg. of Perihelion (ω)183.84660507° ± 1.18e-04
Mean Anomaly (M)85.89613093° ± 1.02e-01
Mean Motion (n)0.2730252701°/day ± 3.46e-05
Perihelion dist (q)1.04532392 AU ± 1.23e-04
Aphelion dist (Q)3.66122904 AU ± 3.21e-04
Orbital Period3.61001853 yr ± 4.57e-04
Physical Parameters
H (abs. magnitude)24.34
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.314″
Uncertainty3
Orbit TypeAmor
MOID0.048085 AU
Observations Used111
Oppositions1
Arc Total2017-2017
First Observation Used2017-09-29
Last Observation Used2017-11-28
Observations (116)
Date Type RA Dec Mag Band Observatory
2017-10-30 12:51:02 C 04 05 15.601 -01 19 02.21 L F51
2017-10-30 13:09:12 C 04 05 22.866 -01 19 16.13 L F51
2017-11-09 13:11:58 C 05 12 24.705 -02 52 23.44 L F51
2017-11-09 13:29:01 C 05 12 27.144 -02 52 25.26 L F51
2017-11-09 13:46:03 C 05 12 29.571 -02 52 27.12 L F51
2017-11-09 14:03:02 C 05 12 32.005 -02 52 28.80 L F51
2017-11-12 09:12:46 C 05 22 17.46 -02 56 38.3 o 691
2017-11-12 09:30:08 C 05 22 19.37 -02 56 38.5 o 691
2017-11-12 09:47:43 C 05 22 21.23 -02 56 38.8 o 691
2017-11-18 10:36:50 C 05 36 06.631 -02 45 14.43 L F51
2017-11-18 10:55:23 C 05 36 07.596 -02 45 11.73 L F51
2017-11-18 11:13:55 C 05 36 08.558 -02 45 08.83 L F51
2017-11-18 11:32:31 C 05 36 09.513 -02 45 05.88 L F51
2017-11-28 07:39:43 C 05 45 57.94 -01 44 36.8 u H21
2017-11-28 07:55:31 C 05 45 58.10 -01 44 31.2 u H21
2017-11-28 08:14:15 C 05 45 58.31 -01 44 24.7 u H21