2021 JF9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4461988078 ± 2.26e-06
Semi-major axis (a)2.0308268952 AU ± 9.54e-06
Inclination (i)5.75601713° ± 2.14e-05
Long. of Asc. Node (Ω)203.22798177° ± 3.87e-05
Arg. of Perihelion (ω)101.38738539° ± 5.28e-05
Mean Anomaly (M)176.85009649° ± 3.75e-03
Mean Motion (n)0.3405672768°/day ± 2.40e-06
Perihelion dist (q)1.12467436 AU ± 7.00e-06
Aphelion dist (Q)2.93697943 AU ± 1.45e-05
Orbital Period2.89407219 yr ± 2.04e-05
Physical Parameters
H (abs. magnitude)22.83
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.206″
Uncertainty1
Orbit TypeAmor
MOID0.150171 AU
Observations Used68
Oppositions1
Arc Total2021-2021
First Observation Used2021-05-12
Last Observation Used2021-09-08
Observations (68)
Date Type RA Dec Mag Band Observatory
2021-07-07 21:16:18 C 18 05 29.57 +18 13 53.8 q B88
2021-07-07 22:27:17 C 18 05 36.32 +18 15 22.1 q B88
2021-07-11 21:01:08 C 18 16 18.37 +20 06 47.2 q B88
2021-07-11 21:48:41 C 18 16 23.56 +20 07 40.0 q B88
2021-08-03 02:13:56 C 19 41 53.55 +24 54 13.6 V 033
2021-08-03 02:15:00 C 19 41 53.76 +24 54 13.6 V 033
2021-08-03 02:16:05 C 19 41 53.95 +24 54 13.3 V 033
2021-08-03 02:17:38 C 19 41 54.21 +24 54 13.0 V 033
2021-08-27 10:16:33 C 21 25 52.69 +16 36 50.2 o 691
2021-08-27 10:35:14 C 21 25 55.33 +16 36 26.2 o 691
2021-08-27 10:43:45 C 21 25 56.55 +16 36 14.0 o 691
2021-08-30 06:22:43 C 21 35 44.085 +15 07 47.01 U F51
2021-08-30 06:41:26 C 21 35 46.502 +15 07 22.92 U F51
2021-08-30 07:00:17 C 21 35 48.932 +15 06 58.44 U F51
2021-09-08 04:17:39 C 22 02 27.49 +10 29 10.9 V G96
2021-09-08 04:25:14 C 22 02 28.29 +10 29 01.2 V G96
2021-09-08 04:32:49 C 22 02 29.09 +10 28 52.2 V G96
2021-09-08 04:40:27 C 22 02 29.86 +10 28 42.3 V G96