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
2023-10-05 05:27:44 C 23 46 04.732 -11 10 49.01 V 703
2023-10-05 05:35:28 C 23 45 57.157 -11 10 15.38 V 703
2023-10-05 05:43:11 C 23 45 49.619 -11 09 41.62 V 703
2023-10-05 05:50:55 C 23 45 42.073 -11 09 08.14 V 703
2023-10-06 18:12:04 B 23 19 35.21 -08 56 33.6 X L99
2023-10-06 18:16:24 B 23 19 32.55 -08 56 21.5 X L99
2023-10-06 18:20:44 B 23 19 29.85 -08 56 07.9 X L99
2023-10-06 19:28:17 C 23 18 50.00 -08 52 39.9 M32
2023-10-06 19:28:43 C 23 18 49.74 -08 52 37.6 M32
2023-10-06 19:28:56 C 23 18 49.59 -08 52 38.1 M32
2023-10-06 19:32:59 C 23 18 47.11 -08 52 25.9 M32
2023-10-06 19:33:12 C 23 18 46.94 -08 52 24.8 M32
2023-10-06 19:33:25 C 23 18 46.85 -08 52 24.9 M32
2023-10-06 19:35:59 C 23 18 45.22 -08 52 16.4 M32
2023-10-06 19:36:38 C 23 18 44.92 -08 52 13.9 M32
2023-10-06 19:37:03 C 23 18 44.60 -08 52 13.6 M32
2023-10-06 20:27:36 C 23 18 14.54 -08 49 45.2 X G02
2023-10-06 20:34:12 C 23 18 09.04 -08 49 24.1 X L18
2023-10-06 20:35:25 C 23 18 09.81 -08 49 21.7 X G02
2023-10-06 20:35:38 C 23 18 08.21 -08 49 20.2 X L18
2023-10-06 20:37:03 C 23 18 07.33 -08 49 15.9 X L18
2023-10-06 20:38:29 C 23 18 06.43 -08 49 11.7 X L18
2023-10-06 20:39:55 C 23 18 05.54 -08 49 07.1 X L18
2023-10-06 20:47:24 C 23 18 02.61 -08 48 46.4 X G02
2023-10-08 03:10:21 C 23 03 34.550 -07 25 36.62 V W68
2023-10-08 03:15:33 C 23 03 32.155 -07 25 25.00 V W68
2023-10-08 03:25:25 C 23 03 27.691 -07 25 02.64 V W68
2023-10-08 20:16:09 C 22 57 17.20 -06 53 36.9 V G17
2023-10-08 20:22:18 B 22 57 15.080 -06 53 39.03 X B72
2023-10-08 20:24:57 B 22 57 14.101 -06 53 33.64 X B72
2023-10-08 20:26:29 C 22 57 13.21 -06 53 16.9 V G17
2023-10-08 20:27:35 B 22 57 13.115 -06 53 27.77 X B72
2023-10-08 20:36:51 C 22 57 09.26 -06 52 57.0 V G17
2023-10-08 20:40:30 C 22 57 09.329 -06 53 04.49 V Z80
2023-10-08 20:48:31 C 22 57 06.302 -06 52 48.61 V Z80
2023-10-10 00:22:57 C 22 48 53.89 -06 03 48.2 V W46
2023-10-10 00:26:56 C 22 48 52.68 -06 03 42.5 V W46
2023-10-10 00:31:01 C 22 48 51.48 -06 03 36.9 V W46
2023-10-11 04:02:39 C 22 42 19.181 -05 24 08.21 V 703
2023-10-11 04:10:19 C 22 42 17.291 -05 23 58.49 V 703
2023-10-11 04:17:58 C 22 42 15.415 -05 23 48.59 V 703
2023-10-11 04:25:37 C 22 42 13.504 -05 23 38.87 V 703
2023-10-12 19:04:34 C 22 35 18.47 -04 39 25.8 V G17
2023-10-12 19:24:55 C 22 35 14.79 -04 39 05.3 V G17
2023-10-12 19:45:16 C 22 35 11.07 -04 38 44.5 V G17
2023-10-13 04:01:03 C 22 33 58.510 -04 30 27.36 V U52
2023-10-13 04:05:13 C 22 33 57.638 -04 30 22.39 V U52
2023-10-13 04:09:23 C 22 33 57.017 -04 30 17.96 V U52
2023-10-13 07:12:41 C 22 33 29.730 -04 26 44.00 X F51
2023-10-13 08:08:28 C 22 33 19.974 -04 25 50.74 X F51
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)