339714 (2005 ST1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3709841354 ± 1.99e-08
Semi-major axis (a)1.4512411703 AU ± 5.32e-10
Inclination (i)20.22850060° ± 9.76e-06
Long. of Asc. Node (Ω)7.54321333° ± 3.39e-06
Arg. of Perihelion (ω)80.69958538° ± 8.58e-06
Mean Anomaly (M)144.67013051° ± 4.45e-06
Mean Motion (n)0.5637712055°/day ± 3.10e-10
Perihelion dist (q)0.91285372 AU ± 2.89e-08
Aphelion dist (Q)1.98962862 AU ± 2.89e-08
Orbital Period1.74827354 yr ± 9.61e-10
Physical Parameters
H (abs. magnitude)20.35
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.446″
Uncertainty0
Orbit TypeApollo
MOID0.127096 AU
Observations Used480
Oppositions12
Arc Total1991-2020
First Observation Used1991-10-02
Last Observation Used2020-04-24
Observations (562)
Date Type RA Dec Mag Band Observatory
2020-03-29 11:05:54 C 13 15 57.095 -15 35 28.27 U F51
2020-04-16 04:58:37 C 12 21 27.05 -19 31 48.4 V G96
2020-04-16 05:06:55 C 12 21 26.22 -19 31 51.1 V G96
2020-04-16 05:15:11 C 12 21 25.39 -19 31 53.1 V G96
2020-04-16 05:23:28 C 12 21 24.58 -19 31 55.7 V G96
2020-04-16 08:33:01 C 12 21 06.448 -19 32 47.80 U F52
2020-04-16 08:49:04 C 12 21 04.851 -19 32 52.67 U F52
2020-04-16 09:05:06 C 12 21 03.227 -19 32 57.17 U F52
2020-04-24 05:42:48 C 12 06 06.41 -20 13 47.0 V G96
2020-04-24 05:50:28 C 12 06 05.88 -20 13 48.2 V G96
2020-04-24 05:58:10 C 12 06 05.33 -20 13 49.5 V G96
2020-04-24 06:05:50 C 12 06 04.86 -20 13 49.9 V G96