2021 UK4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4884095186 ± 6.19e-04
Semi-major axis (a)2.0935071123 AU ± 2.69e-03
Inclination (i)1.87494166° ± 1.96e-03
Long. of Asc. Node (Ω)54.94765710° ± 3.72e-03
Arg. of Perihelion (ω)327.14997397° ± 1.21e-02
Mean Anomaly (M)127.01532705° ± 9.88e-01
Mean Motion (n)0.3253873127°/day ± 6.27e-04
Perihelion dist (q)1.07101831 AU ± 1.89e-03
Aphelion dist (Q)3.11599591 AU ± 4.21e-03
Orbital Period3.02908640 yr ± 5.84e-03
Physical Parameters
H (abs. magnitude)25.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.314″
Uncertainty3
Orbit TypeAmor
MOID0.074524 AU
Observations Used31
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-28
Last Observation Used2021-11-11
Observations (31)
Date Type RA Dec Mag Band Observatory
2021-10-28 07:09:09 C 02 41 00.18 +07 28 26.3 V G96
2021-10-28 07:16:33 C 02 41 01.78 +07 28 45.5 V G96
2021-10-28 07:23:56 C 02 41 03.42 +07 29 05.0 V G96
2021-10-28 07:31:21 C 02 41 05.04 +07 29 25.5 V G96
2021-10-28 10:03:37 C 02 41 38.65 +07 36 01.6 V V06
2021-10-28 10:04:45 C 02 41 38.93 +07 36 05.1 V V06
2021-10-28 10:05:54 C 02 41 39.12 +07 36 07.1 V V06
2021-10-29 01:16:41 C 02 45 19.50 +08 14 53.5 V 033
2021-10-29 01:19:46 C 02 45 20.19 +08 15 01.1 V 033
2021-10-29 01:22:51 C 02 45 20.85 +08 15 08.7 V 033
2021-10-29 05:05:30 C 02 46 18.97 +08 24 58.6 V I52
2021-10-29 05:09:55 C 02 46 19.89 +08 25 10.1 V I52
2021-10-29 05:20:16 C 02 46 22.16 +08 25 36.6 V I52
2021-10-29 22:55:12 C 02 50 24.10 +09 08 54.8 V 033
2021-10-29 22:58:17 C 02 50 24.79 +09 09 02.8 V 033
2021-10-29 23:01:22 C 02 50 25.41 +09 09 10.4 V 033
2021-10-30 03:58:58 C 02 51 33.93 +09 23 17.9 u 807
2021-10-30 04:05:03 C 02 51 35.16 +09 23 32.6 u 807
2021-10-30 04:11:07 C 02 51 36.39 +09 23 47.6 u 807
2021-11-01 09:12:27 C 03 03 01.669 +11 24 12.59 U F51
2021-11-01 09:28:20 C 03 03 04.527 +11 24 47.57 U F51
2021-11-01 09:44:09 C 03 03 07.356 +11 25 22.20 U F51
2021-11-01 09:59:59 C 03 03 10.213 +11 25 56.78 U F51
2021-11-08 08:03:14 C 03 31 45.25 +16 26 32.4 V G96
2021-11-08 08:10:40 C 03 31 46.15 +16 26 42.8 V G96
2021-11-08 08:18:04 C 03 31 47.07 +16 26 54.3 V G96
2021-11-08 08:25:29 C 03 31 48.04 +16 27 04.8 V G96
2021-11-11 09:44:41 C 03 41 26.26 +18 06 40.8 V V06
2021-11-11 09:50:32 C 03 41 26.94 +18 06 48.1 V V06
2021-11-11 09:52:28 C 03 41 27.17 +18 06 50.4 V V06
2021-11-11 09:55:57 C 03 41 27.52 +18 06 54.6 V V06