2021 UF4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4352680488 ± 1.19e-05
Semi-major axis (a)1.7387400548 AU ± 3.65e-05
Inclination (i)0.41523253° ± 8.57e-06
Long. of Asc. Node (Ω)53.35467277° ± 6.57e-05
Arg. of Perihelion (ω)11.71926225° ± 8.33e-05
Mean Anomaly (M)266.78019083° ± 1.97e-02
Mean Motion (n)0.4298929151°/day ± 1.35e-05
Perihelion dist (q)0.98192206 AU ± 2.92e-05
Aphelion dist (Q)2.49555805 AU ± 5.63e-05
Orbital Period2.29272512 yr ± 7.22e-05
Physical Parameters
H (abs. magnitude)27.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.279″
Uncertainty2
Orbit TypeApollo
MOID0.000256 AU
Observations Used106
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-29
Last Observation Used2021-12-16
Observations (114)
Date Type RA Dec Mag Band Observatory
2021-11-08 03:04:23 C 05 46 50.08 +18 28 19.8 V 204
2021-11-08 03:10:34 C 05 47 10.27 +18 28 41.6 V 204
2021-11-09 23:19:32 C 07 53 23.79 +18 06 09.6 V 033
2021-11-09 23:20:06 C 07 53 24.92 +18 06 07.7 V 033
2021-11-09 23:20:41 C 07 53 26.17 +18 06 06.7 V 033
2021-11-09 23:21:22 C 07 53 27.61 +18 06 05.0 V 033
2021-11-09 23:22:05 C 07 53 29.10 +18 06 03.0 V 033
2021-11-09 23:22:46 C 07 53 30.52 +18 06 01.4 V 033
2021-11-09 23:23:27 C 07 53 31.91 +18 05 59.6 V 033
2021-11-12 12:31:00 C 09 18 31.75 +14 58 22.7 V V06
2021-11-12 12:32:35 C 09 18 32.50 +14 58 20.2 V V06
2021-11-12 12:35:44 C 09 18 35.38 +14 58 10.5 V V06
2021-12-16 08:05:58 C 11 06 02.059 +07 58 26.57 V 309
2021-12-16 08:11:41 C 11 06 02.030 +07 58 26.28 V 309