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
2009-10-16 05:19:46 C 00 37 38.71 +15 25 26.9 18.8 c 704
2009-10-16 05:38:43 C 00 37 28.56 +15 24 51.0 18.4 c 704
2009-10-16 05:57:40 C 00 37 18.55 +15 24 17.2 18.4 c 704
2009-10-16 06:16:37 C 00 37 08.54 +15 23 43.5 18.6 c 704
2009-10-16 06:35:36 C 00 36 58.52 +15 23 09.2 18.2 c 704
2009-10-16 07:11:17 C 00 36 40.21 +15 22 07.3 r 703
2009-10-16 07:22:53 C 00 36 34.12 +15 21 45.8 r 703
2009-10-16 07:34:28 C 00 36 28.00 +15 21 24.8 r 703
2009-10-16 07:46:00 C 00 36 21.99 +15 21 03.6 r 703
2009-10-16 09:02:33 C 00 35 42.21 +15 18 42.6 r 703
2009-10-16 09:03:27 C 00 35 41.74 +15 18 41.2 r 703
2009-10-16 09:04:19 C 00 35 41.28 +15 18 39.6 r 703
2009-10-16 09:05:12 C 00 35 40.84 +15 18 37.7 r 703
2009-10-16 20:12:01 C 00 30 27.75 +14 58 22.9 r J95
2009-10-16 20:16:41 C 00 30 25.47 +14 58 14.8 r J95
2009-10-16 20:18:28 C 00 30 24.11 +14 58 23.1 v 204
2009-10-16 20:19:14 C 00 30 24.23 +14 58 10.3 r J95
2009-10-16 20:21:36 C 00 30 22.47 +14 58 21.6 r B33
2009-10-16 20:25:16 C 00 30 20.75 +14 58 11.3 v 204
2009-10-16 20:26:52 C 00 30 19.87 +14 58 13.1 r B33
2009-10-16 20:30:02 C 00 30 18.38 +14 58 08.2 r B33
2009-10-16 20:32:04 C 00 30 17.39 +14 57 59.9 v 204
2009-10-16 20:34:47 C 00 30 15.98 +14 57 59.5 r B33
2009-10-16 21:36:40 C 00 29 45.57 +14 56 08.1 r 147
2009-10-16 21:43:41 C 00 29 42.21 +14 55 55.8 r 147
2009-10-17 04:10:43 C 00 26 44.59 +14 44 47.0 18.8 r H05
2009-10-17 04:30:05 C 00 26 35.29 +14 44 14.3 18.4 r H05
2009-10-17 04:41:50 C 00 26 29.60 +14 43 53.8 18.0 r H05
2009-10-17 05:05:01 C 00 26 18.78 +14 43 25.4 18.8 c 704
2009-10-17 05:23:50 C 00 26 09.67 +14 42 52.9 19.0 c 704
2009-10-17 05:42:40 C 00 26 00.60 +14 42 22.2 19.2 c 704
2009-10-17 06:01:28 C 00 25 51.49 +14 41 48.4 19.1 c 704
2009-10-17 06:20:17 C 00 25 42.42 +14 41 13.8 19.4 c 704
2009-10-17 15:46:35 C 00 21 29.97 +14 26 55.8 c D21
2009-10-17 15:51:55 C 00 21 27.44 +14 26 47.2 c D21
2009-10-17 15:57:15 C 00 21 24.96 +14 26 36.8 c D21
2009-10-18 05:22:08 C 00 15 43.48 +14 01 40.2 o H55
2009-10-18 05:25:56 C 00 15 41.81 +14 01 33.5 o H55
2009-10-18 05:27:49 C 00 15 40.95 +14 01 29.4 o H55
2009-10-18 05:36:10 C 00 15 37.30 +14 01 16.5 o H55
2009-10-18 05:38:04 C 00 15 36.46 +14 01 13.0 o H55
2009-10-18 05:49:14 C 00 15 32.35 +14 00 55.9 r H36
2009-10-18 05:51:20 C 00 15 31.41 +14 00 52.3 r H36
2009-10-18 05:53:26 C 00 15 30.51 +14 00 48.6 r H36
2009-10-19 06:15:51 C 00 05 54.90 +13 20 53.2 o H55
2009-10-19 06:19:21 C 00 05 53.52 +13 20 47.3 o H55
2009-10-19 06:24:44 C 00 05 51.38 +13 20 37.9 o H55
2009-10-19 06:27:42 C 00 05 50.22 +13 20 33.2 o H55
2009-10-19 18:52:04 C 00 01 25.70 +13 00 49.3 r 215
2009-10-19 18:54:51 C 00 01 24.66 +13 00 45.0 r 215
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)