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
2011-11-24 06:42:24 C 00 59 29.425 -10 23 13.04 o 568
2011-11-24 07:49:28 C 00 59 29.338 -10 23 18.45 o 568
2013-09-08 04:17:26 C 03 57 23.67 +12 22 17.7 q 950
2013-09-08 04:21:12 C 03 57 23.86 +12 22 13.9 q 950
2013-09-08 04:25:00 C 03 57 23.90 +12 22 11.6 q 950
2013-09-08 04:28:47 C 03 57 23.94 +12 22 09.8 q 950
2013-09-08 04:32:33 C 03 57 24.01 +12 22 06.3 q 950
2022-01-07 07:56:06 C 07 21 08.48 -18 40 33.5 V V06
2022-01-07 08:00:41 C 07 21 08.17 -18 40 33.5 V V06
2024-03-01 00:42:11 C 08 06 54.000 -18 26 27.90 V 807
2024-03-01 00:46:49 C 08 06 53.680 -18 26 22.40 V 807
2024-03-01 00:51:34 C 08 06 53.410 -18 26 17.60 V 807
2024-04-12 03:32:55 C 07 57 06.419 +07 39 08.35 V G96
2024-04-12 03:41:02 C 07 57 06.736 +07 39 21.24 V G96
2024-04-12 03:49:11 C 07 57 07.078 +07 39 34.31 V G96
2024-04-12 03:57:18 C 07 57 07.398 +07 39 47.45 V G96
2024-05-29 05:14:49 C 09 37 31.260 +36 19 47.40 V V06
2024-05-29 05:15:28 C 09 37 31.320 +36 19 48.30 V V06
2024-05-29 05:16:06 C 09 37 31.400 +36 19 49.50 V V06
2024-08-11 00:04:46 C 17 19 24.11 +66 12 43.3 V D48
2024-08-11 00:25:53 C 17 19 33.59 +66 12 15.7 V D48
2024-08-11 00:36:26 C 17 19 38.37 +66 12 01.7 V D48
2024-08-12 21:51:53 C 17 39 49.97 +65 09 12.3 V D48
2024-08-12 22:02:27 C 17 39 54.50 +65 08 55.6 V D48
2024-08-12 22:13:00 C 17 39 59.00 +65 08 39.1 V D48
2024-08-12 22:34:07 C 17 40 07.96 +65 08 05.5 V D48
2024-08-24 05:45:48 C 19 18 31.889 +54 38 17.45 V T08
2024-08-24 05:50:43 C 19 18 33.142 +54 38 04.38 V T08
2024-08-24 05:56:17 C 19 18 34.750 +54 37 46.24 V T08
2024-08-24 06:11:55 C 19 18 38.964 +54 36 59.44 V T08
2024-08-25 20:50:43 B 19 29 23.628 +52 35 35.41 X K87
2024-08-25 21:03:29 B 19 29 26.971 +52 34 55.63 X K87
2024-08-25 21:16:14 B 19 29 30.194 +52 34 14.16 X K87
2024-08-25 21:41:54 B 19 29 36.516 +52 32 52.01 V L47
2024-08-25 21:48:16 B 19 29 38.160 +52 32 32.17 V L47
2024-08-25 21:54:39 B 19 29 39.878 +52 32 11.40 V L47
2024-08-26 21:04:33 B 19 35 46.502 +51 16 21.07 X K87
2024-08-26 21:12:57 B 19 35 48.674 +51 15 52.81 X K87
2024-08-26 21:21:23 B 19 35 50.695 +51 15 25.92 X K87
2024-08-27 08:49:54 C 19 38 45.905 +50 37 16.86 V T08
2024-08-27 08:54:46 C 19 38 47.054 +50 37 00.19 V T08
2024-08-27 09:02:46 C 19 38 48.996 +50 36 33.34 V T08
2024-08-27 09:17:48 C 19 38 52.637 +50 35 41.75 V T08
2024-08-28 21:35:28 C 19 47 46.114 +48 30 49.39 Z G19
2024-08-28 21:52:32 C 19 47 49.956 +48 29 49.56 Z G19
2024-08-28 22:09:36 C 19 47 53.858 +48 28 49.12 Z G19
2024-08-28 22:26:38 C 19 47 57.746 +48 27 49.10 Z G19
2024-08-28 22:43:34 C 19 48 01.654 +48 26 48.91 Z G19
2024-08-28 23:00:34 C 19 48 05.510 +48 25 49.55 Z G19
2024-08-29 19:39:33 C 19 52 54.931 +47 12 51.95 Z G19