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
2023-10-13 18:43:41 B 22 31 56.90 -04 16 46.1 X M45
2023-10-13 18:50:24 B 22 31 55.81 -04 16 40.0 X M45
2023-10-13 18:56:44 B 22 31 54.86 -04 16 34.2 X M45
2023-10-14 03:42:45 C 22 30 49.882 -04 08 31.06 V I52
2023-10-14 03:54:10 C 22 30 48.172 -04 08 21.37 V I52
2023-10-14 04:05:07 C 22 30 46.519 -04 08 11.94 V I52
2023-10-14 04:16:30 C 22 30 44.824 -04 08 02.04 V I52
2023-10-14 05:03:57 C 22 30 37.728 -04 07 21.58 V I52
2023-10-14 05:04:44 C 22 30 37.609 -04 07 20.82 V I52
2023-10-14 05:09:46 C 22 30 36.868 -04 07 16.50 V I52
2023-10-14 05:10:33 C 22 30 36.752 -04 07 15.85 V I52
2023-10-15 03:24:41 C 22 28 12.324 -03 49 16.61 V 703
2023-10-15 03:47:37 C 22 28 09.318 -03 49 00.12 V 703
2023-10-15 03:51:16 C 22 28 08.904 -03 48 57.17 V G96
2023-10-15 03:58:47 C 22 28 07.950 -03 48 51.37 V G96
2023-10-15 04:06:17 C 22 28 06.985 -03 48 45.68 V G96
2023-10-15 04:13:48 C 22 28 06.010 -03 48 39.78 V G96
2023-10-16 03:50:45 C 22 25 54.75 -03 31 31.5 V 691
2023-10-16 03:53:01 C 22 25 54.51 -03 31 30.2 V 691
2023-10-16 03:55:16 C 22 25 54.27 -03 31 29.0 V 691
2023-10-17 05:12:06 C 22 23 58.471 -03 14 39.54 X F51
2023-10-17 05:31:08 C 22 23 56.666 -03 14 27.98 X F51
2023-10-17 05:51:15 C 22 23 54.741 -03 14 15.60 X F51
2023-10-17 06:10:17 C 22 23 52.901 -03 14 03.90 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)