2021 UF9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5040947160 ± 1.36e-04
Semi-major axis (a)2.4174420585 AU ± 7.73e-04
Inclination (i)6.83170580° ± 1.62e-03
Long. of Asc. Node (Ω)70.31523483° ± 2.02e-03
Arg. of Perihelion (ω)300.32761315° ± 2.53e-03
Mean Anomaly (M)36.19868019° ± 1.90e-01
Mean Motion (n)0.2622274584°/day ± 1.26e-04
Perihelion dist (q)1.19882229 AU ± 5.05e-04
Aphelion dist (Q)3.63606183 AU ± 1.21e-03
Orbital Period3.75866925 yr ± 1.80e-03
Physical Parameters
H (abs. magnitude)23.55
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.135″
Uncertainty3
Orbit TypeAmor
MOID0.226237 AU
Observations Used18
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-14
Last Observation Used2021-11-03
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-10-14 08:35:11 C 02 26 09.50 -14 46 34.1 V G96
2021-10-14 08:43:25 C 02 26 09.76 -14 46 21.8 V G96
2021-10-14 08:51:39 C 02 26 10.01 -14 46 10.0 V G96
2021-10-29 08:26:26 C 02 35 09.322 -05 12 03.06 U F52
2021-10-29 08:44:07 C 02 35 09.438 -05 11 34.45 U F52
2021-10-29 09:01:46 C 02 35 09.554 -05 11 05.77 U F52
2021-10-30 05:36:11 C 02 35 26.77 -04 37 15.4 V 807
2021-10-30 05:41:30 C 02 35 26.81 -04 37 06.9 V 807
2021-10-30 05:46:49 C 02 35 26.86 -04 36 58.3 V 807
2021-10-30 08:56:57 C 02 35 30.948 -04 32 19.03 V 568
2021-10-30 08:58:22 C 02 35 30.957 -04 32 16.73 V 568
2021-10-30 08:59:46 C 02 35 30.965 -04 32 14.46 V 568
2021-11-03 03:50:54 C 02 36 42.95 -02 06 19.4 V 807
2021-11-03 03:56:13 C 02 36 42.97 -02 06 11.1 V 807
2021-11-03 04:01:31 C 02 36 43.00 -02 06 02.7 V 807
2021-11-03 10:36:04 C 02 36 47.344 -01 56 07.33 V 568
2021-11-03 10:37:29 C 02 36 47.347 -01 56 05.11 V 568
2021-11-03 10:38:53 C 02 36 47.353 -01 56 02.84 V 568