2011 UF21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4072935541 ± 5.38e-08
Semi-major axis (a)1.5193280374 AU ± 3.82e-09
Inclination (i)21.38379166° ± 8.07e-06
Long. of Asc. Node (Ω)191.25375925° ± 8.70e-06
Arg. of Perihelion (ω)65.81556458° ± 1.46e-05
Mean Anomaly (M)270.77021165° ± 6.14e-06
Mean Motion (n)0.5263019119°/day ± 1.99e-09
Perihelion dist (q)0.90051552 AU ± 8.18e-08
Aphelion dist (Q)2.13814055 AU ± 8.20e-08
Orbital Period1.87273932 yr ± 7.07e-09
Physical Parameters
H (abs. magnitude)19.56
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.273″
Uncertainty0
Orbit TypeApollo
MOID0.063990 AU
Observations Used144
Oppositions7
Arc Total2009-2024
First Observation Used2009-10-15
Last Observation Used2024-10-20
Observations (153)
Date Type RA Dec Mag Band Observatory
2024-08-29 20:10:46 C 19 53 01.798 +47 11 00.53 Z G19
2024-08-29 20:42:00 C 19 53 08.688 +47 09 09.32 Z G19
2024-09-03 08:00:08 C 20 15 31.243 +40 32 15.07 V T08
2024-09-03 08:04:47 C 20 15 32.023 +40 31 57.54 V T08
2024-09-03 08:39:10 C 20 15 38.237 +40 29 46.50 V T08
2024-09-03 08:47:09 C 20 15 39.703 +40 29 15.25 V T08
2024-09-06 19:39:41 B 20 30 30.62 +35 11 18.9 V 130
2024-09-06 19:47:45 B 20 30 31.91 +35 10 48.0 V 130
2024-09-06 21:47:34 C 20 30 51.151 +35 03 04.46 Z G19
2024-09-06 22:18:55 C 20 30 56.222 +35 01 03.07 Z G19
2024-09-06 22:50:21 C 20 31 01.258 +34 59 01.50 Z G19
2024-09-08 08:56:00 C 20 36 35.472 +32 48 28.37 V T05
2024-09-08 09:00:33 C 20 36 36.115 +32 48 11.41 V T05
2024-09-08 09:06:38 C 20 36 37.070 +32 47 47.36 V T05
2024-09-08 09:10:05 C 20 36 37.550 +32 47 34.01 V T05
2024-09-08 09:41:16 C 20 36 42.266 +32 45 34.70 V T05
2024-09-09 06:19:14 C 20 39 58.339 +31 26 50.93 V T05
2024-09-09 06:21:50 C 20 39 58.685 +31 26 39.91 V T05
2024-09-09 06:24:33 C 20 39 57.866 +31 26 20.76 V U52
2024-09-09 06:26:24 C 20 39 59.400 +31 26 24.00 V T05
2024-09-09 06:27:44 C 20 39 58.440 +31 26 08.34 V U52
2024-09-09 06:30:54 C 20 39 59.042 +31 25 55.96 V U52
2024-09-09 06:33:46 C 20 40 00.533 +31 25 55.81 V T05
2024-09-12 08:38:59 C 20 50 53.746 +26 48 10.48 V T05
2024-09-12 08:43:47 C 20 50 54.374 +26 47 53.38 V T05
2024-09-12 08:51:56 C 20 50 55.457 +26 47 22.60 V T05
2024-09-12 09:13:50 C 20 50 58.358 +26 46 02.03 V T05
2024-09-14 08:23:19 C 20 57 24.115 +23 55 15.46 V T08
2024-09-14 08:27:59 C 20 57 24.658 +23 54 59.11 V T08
2024-09-14 08:35:40 C 20 57 25.632 +23 54 32.26 V T08
2024-09-14 08:55:16 C 20 57 28.051 +23 53 21.73 V T08
2024-09-14 18:19:15 B 20 58 43.721 +23 20 18.60 Z M49
2024-09-14 18:29:57 B 20 58 45.094 +23 19 39.79 Z M49
2024-09-20 20:23:49 B 21 16 21.614 +15 18 02.41 Z K74
2024-09-20 20:45:35 B 21 16 23.945 +15 16 55.88 Z K74
2024-09-20 21:04:59 B 21 16 25.990 +15 15 57.28 Z K74
2024-09-22 06:56:41 C 21 20 08.927 +13 35 14.35 V 703
2024-09-22 07:06:29 C 21 20 09.964 +13 34 46.78 V 703
2024-09-25 05:52:47 C 21 27 37.486 +10 18 18.68 X F52
2024-09-25 06:09:02 C 21 27 39.057 +10 17 35.71 X F52
2024-09-25 06:25:14 C 21 27 40.603 +10 16 53.07 X F52
2024-09-25 06:41:30 C 21 27 42.167 +10 16 10.29 X F52
2024-09-28 05:46:13 C 21 34 44.274 +07 18 03.53 V 703
2024-09-28 05:49:31 C 21 34 44.620 +07 17 55.39 V 703
2024-09-28 05:56:07 C 21 34 45.138 +07 17 40.20 V 703
2024-10-06 03:30:10 C 21 52 02.111 +00 51 48.35 V G96
2024-10-06 03:37:37 C 21 52 02.726 +00 51 35.50 V G96
2024-10-06 03:45:03 C 21 52 03.342 +00 51 22.50 V G96
2024-10-06 03:52:31 C 21 52 03.954 +00 51 09.94 V G96
2024-10-20 04:20:44 C 22 19 18.674 -06 14 48.91 V G96