2021 PF9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1054186535 ± 7.07e-05
Semi-major axis (a)1.1500405744 AU ± 9.70e-05
Inclination (i)4.94708152° ± 2.50e-03
Long. of Asc. Node (Ω)134.19218993° ± 2.08e-04
Arg. of Perihelion (ω)157.87146898° ± 3.05e-03
Mean Anomaly (M)190.53335631° ± 1.60e-01
Mean Motion (n)0.7991761816°/day ± 1.01e-04
Perihelion dist (q)1.02880485 AU ± 1.19e-04
Aphelion dist (Q)1.27127630 AU ± 1.35e-04
Orbital Period1.23330288 yr ± 1.56e-04
Physical Parameters
H (abs. magnitude)28.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.170″
Uncertainty3
Orbit TypeAmor
MOID0.018213 AU
Observations Used12
Oppositions1
Arc Total2021-2021
First Observation Used2021-08-09
Last Observation Used2021-08-13
Observations (12)
Date Type RA Dec Mag Band Observatory
2021-08-09 09:54:03 C 21 52 13.881 -23 15 13.51 U F51
2021-08-09 10:27:43 C 21 52 24.690 -23 18 54.68 U F51
2021-08-09 10:44:32 C 21 52 30.030 -23 20 43.43 U F51
2021-08-09 13:41:40 C 21 53 27.131 -23 38 59.95 V F51
2021-08-10 00:30:30 C 21 58 19.663 -24 46 23.31 V J04
2021-08-10 00:44:02 C 21 58 23.921 -24 47 46.46 V J04
2021-08-10 00:57:48 C 21 58 28.245 -24 49 10.95 V J04
2021-08-10 11:15:09 C 22 02 31.835 -25 48 42.42 V F51
2021-08-12 10:14:57 C 22 20 12.874 -29 46 12.00 V F51
2021-08-12 10:30:24 C 22 20 16.789 -29 47 23.48 V F51
2021-08-13 10:01:10 C 22 28 16.639 -31 25 58.57 V F51
2021-08-13 10:20:45 C 22 28 21.250 -31 27 19.33 V F51