257838 (2000 JQ66)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4197482659 ± 1.78e-08
Semi-major axis (a)2.1652920613 AU ± 1.19e-09
Inclination (i)7.06145608° ± 1.47e-06
Long. of Asc. Node (Ω)188.89277714° ± 1.43e-05
Arg. of Perihelion (ω)103.86188071° ± 1.61e-05
Mean Anomaly (M)339.11536696° ± 3.04e-06
Mean Motion (n)0.3093410467°/day ± 2.55e-10
Perihelion dist (q)1.25641447 AU ± 3.86e-08
Aphelion dist (Q)3.07416965 AU ± 3.86e-08
Orbital Period3.18621241 yr ± 2.62e-09
Physical Parameters
H (abs. magnitude)18.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.313″
Uncertainty0
Orbit TypeAmor
MOID0.273705 AU
Observations Used807
Oppositions28
Arc Total1984-2025
First Observation Used1984-03-29
Last Observation Used2025-03-28
Observations (859)
Date Type RA Dec Mag Band Observatory
2025-02-22 10:22:16 C 09 50 29.534 +05 36 50.89 X F51
2025-03-21 06:00:10 C 09 25 23.046 +08 59 42.89 X F52
2025-03-21 06:15:45 C 09 25 22.586 +08 59 47.04 X F52
2025-03-21 06:31:20 C 09 25 22.162 +08 59 51.54 X F52
2025-03-21 06:47:02 C 09 25 21.719 +08 59 55.94 X F52
2025-03-28 05:52:38 C 09 21 26.266 +09 43 36.03 X F51
2025-03-28 06:09:58 C 09 21 25.915 +09 43 40.03 X F51
2025-03-28 06:27:21 C 09 21 25.562 +09 43 44.32 X F51
2025-03-28 06:46:48 C 09 21 25.146 +09 43 49.34 X F51