2009 UG

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3754229145 ± 2.65e-08
Semi-major axis (a)0.7880244090 AU ± 3.34e-10
Inclination (i)5.02035921° ± 2.24e-06
Long. of Asc. Node (Ω)13.69053310° ± 2.33e-06
Arg. of Perihelion (ω)201.89341695° ± 3.69e-06
Mean Anomaly (M)147.13440516° ± 7.23e-06
Mean Motion (n)1.4089733256°/day ± 8.95e-10
Perihelion dist (q)0.49218199 AU ± 2.08e-08
Aphelion dist (Q)1.08386683 AU ± 2.09e-08
Orbital Period0.69953509 yr ± 4.44e-10
NGA Modelr2
A29.28052267e-14 ± 1.03e-15 AU/d²
Physical Parameters
H (abs. magnitude)23.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.275″
Uncertainty0
Orbit TypeAten
MOID0.011753 AU
Observations Used243
Radar Obs Used7
Oppositions6
Arc Total2009-2023
First Observation Used2009-10-16
Last Observation Used2023-10-17
Observations (274)
Date Type RA Dec Mag Band Observatory
2016-10-07 05:34:16 C 23 10 26.07 -07 12 36.0 q H45
2016-10-07 05:35:25 C 23 10 25.49 -07 12 33.5 q H45
2016-10-07 05:36:34 C 23 10 24.92 -07 12 30.8 q H45
2016-10-07 05:37:35 C 23 10 24.41 -07 12 28.5 q H45
2016-10-07 05:38:35 C 23 10 23.93 -07 12 26.4 q H45
2016-10-07 05:40:05 C 23 10 23.21 -07 12 23.0 q H45
2016-10-08 06:54:40 C 23 00 25.49 -06 22 58.0 q H45
2016-10-08 06:56:00 C 23 00 24.97 -06 22 55.5 q H45
2016-10-08 06:57:33 C 23 00 24.31 -06 22 52.6 q H45
2016-10-08 06:58:26 C 23 00 23.98 -06 22 50.7 q H45
2016-10-08 06:59:29 C 23 00 23.58 -06 22 49.2 q H45
2016-11-04 01:32:33 C 22 19 48.08 -00 21 32.9 u H21
2016-11-04 01:50:07 C 22 19 48.24 -00 21 28.4 u H21
2016-11-04 02:15:34 C 22 19 48.44 -00 21 20.7 u H21
2023-09-30 06:06:02 C 04 06 43.193 -20 55 10.02 V W68
2023-09-30 06:10:38 C 04 06 27.281 -20 55 20.71 V W68
2023-09-30 06:14:35 C 04 06 13.639 -20 55 29.10 V W68
2023-09-30 06:35:14 C 04 05 01.783 -20 56 11.29 V W68
2023-09-30 09:21:48 C 03 55 14.84 -20 59 58.9 W X09
2023-09-30 09:25:53 C 03 55 00.27 -21 00 00.7 W X09
2023-09-30 12:55:25 C 03 43 29.425 -21 09 38.60 V F52
2023-09-30 13:10:06 C 03 42 37.160 -21 09 41.28 V F52
2023-09-30 13:25:32 C 03 41 42.101 -21 09 41.62 V F52
2023-10-01 06:55:04 C 02 43 38.165 -20 24 00.50 V W68
2023-10-01 06:59:41 C 02 43 22.790 -20 23 41.42 V W68
2023-10-01 07:07:46 C 02 42 55.910 -20 23 08.02 V W68
2023-10-01 08:00:00 C 02 40 02.796 -20 19 19.60 V W68
2023-10-01 23:08:27 C 01 55 48.71 -19 05 56.9 X C95
2023-10-01 23:15:56 C 01 55 27.61 -19 05 10.9 X C95
2023-10-01 23:23:07 C 01 55 07.40 -19 04 26.8 X C95
2023-10-02 01:51:50 C 01 48 11.01 -18 48 21.0 X L63
2023-10-02 02:00:41 C 01 47 46.84 -18 47 21.0 X L63
2023-10-02 02:09:59 C 01 47 21.45 -18 46 17.4 X L63
2023-10-03 08:30:18 C 00 42 20.387 -15 17 36.49 V 703
2023-10-03 08:38:23 C 00 42 05.724 -15 16 42.17 V 703
2023-10-03 08:46:27 C 00 41 51.191 -15 15 48.24 V 703
2023-10-03 08:54:32 C 00 41 36.650 -15 14 53.77 V 703
2023-10-03 19:46:58 B 00 24 49.72 -14 07 18.0 X L99
2023-10-03 19:49:07 B 00 24 46.40 -14 07 05.3 X L99
2023-10-03 19:51:17 B 00 24 43.16 -14 06 51.5 X L99
2023-10-03 20:15:25 B 00 24 08.57 -14 04 11.8 X M45
2023-10-03 20:18:19 B 00 24 04.21 -14 03 54.9 X M45
2023-10-03 20:21:14 B 00 23 59.84 -14 03 37.8 X M45
2023-10-03 22:25:27 C 00 20 55.661 -13 43 59.56 V M22
2023-10-03 22:30:49 C 00 20 47.676 -13 43 27.73 V M22
2023-10-03 23:14:54 C 00 19 42.559 -13 39 06.66 V M22
2023-10-05 03:43:23 C 23 47 35.882 -11 13 20.75 V W68
2023-10-05 03:47:58 C 23 47 31.282 -11 13 00.55 V W68
2023-10-05 03:58:28 C 23 47 20.777 -11 12 13.75 V W68
2023-10-05 04:30:19 C 23 46 49.063 -11 09 51.84 V W68
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2023-09-29 12:00:00 171244.022 1 Hz 8560 -14 -14
2023-09-29 12:20:00 167299.973 0.2 Hz 8560 -14 -14
2023-09-29 12:40:00 16531492.97 2 us 8560 -14 -14
2023-10-01 08:00:00 16156809.768 0.25 us 8560 -14 -14
2023-10-02 07:20:00 -250346.759 0.4 Hz 8560 -14 -14
2023-10-02 07:40:00 18116049.53 0.375 us 8560 -14 -14
2023-10-03 07:20:00 21166517.193 0.25 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)