2021 PD9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4903739156 ± 7.66e-06
Semi-major axis (a)2.3582502324 AU ± 4.14e-05
Inclination (i)1.86834757° ± 2.05e-05
Long. of Asc. Node (Ω)196.34869294° ± 3.03e-05
Arg. of Perihelion (ω)185.10355939° ± 7.53e-05
Mean Anomaly (M)48.24131866° ± 1.07e-02
Mean Motion (n)0.2721619747°/day ± 7.17e-06
Perihelion dist (q)1.20182583 AU ± 2.78e-05
Aphelion dist (Q)3.51467463 AU ± 6.43e-05
Orbital Period3.62146947 yr ± 9.53e-05
Physical Parameters
H (abs. magnitude)22.15
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.157″
Uncertainty2
Orbit TypeAmor
MOID0.202594 AU
Observations Used141
Oppositions1
Arc Total2021-2021
First Observation Used2021-08-06
Last Observation Used2021-11-30
Observations (153)
Date Type RA Dec Mag Band Observatory
2021-11-30 04:55:39 C 03 14 34.38 +12 33 38.2 V G96
2021-11-30 05:03:40 C 03 14 34.70 +12 33 39.9 V G96
2021-11-30 05:11:41 C 03 14 34.97 +12 33 41.3 V G96