494658 (2000 UG11)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5718226892 ± 1.82e-08
Semi-major axis (a)1.9293323492 AU ± 1.18e-09
Inclination (i)8.91113778° ± 3.80e-06
Long. of Asc. Node (Ω)223.88950530° ± 1.47e-06
Arg. of Perihelion (ω)240.90955313° ± 5.91e-06
Mean Anomaly (M)109.46226180° ± 3.86e-06
Mean Motion (n)0.3677915159°/day ± 3.36e-10
Perihelion dist (q)0.82609634 AU ± 3.50e-08
Aphelion dist (Q)3.03256836 AU ± 3.51e-08
Orbital Period2.67985052 yr ± 2.45e-09
Physical Parameters
H (abs. magnitude)20.71
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.438″
Uncertainty0
Orbit TypeApollo
MOID0.009041 AU
Observations Used441
Radar Obs Used4
Oppositions1
Arc Total2000-2025
First Observation Used2000-10-21
Last Observation Used2025-04-27
Observations (458)
Date Type RA Dec Mag Band Observatory
2008-09-04 05:20:52 C 00 06 51.78 +18 47 25.1 o 291
2008-09-04 05:28:53 C 00 06 51.52 +18 47 25.1 o 291
2008-09-04 05:37:01 C 00 06 51.22 +18 47 26.1 o 291
2008-09-19 04:20:06 C 23 50 07.27 +18 27 36.6 o 291
2008-09-19 04:25:44 C 23 50 06.91 +18 27 35.3 o 291
2008-09-19 04:31:22 C 23 50 06.52 +18 27 34.3 o 291
2008-10-02 08:21:56 C 23 26 06.915 +16 05 21.20 645
2008-10-02 08:21:56 C 23 26 06.92 +16 05 21.3 n 645
2008-10-02 08:23:08 C 23 26 06.80 +16 05 20.4 n 645
2008-10-02 08:23:08 C 23 26 06.802 +16 05 20.47 645
2008-10-02 08:25:31 C 23 26 06.578 +16 05 18.74 645
2008-10-02 08:26:43 C 23 26 06.48 +16 05 17.9 n 645
2008-10-02 08:26:43 C 23 26 06.487 +16 05 17.91 645
2008-10-28 05:36:15 C 22 30 28.84 +04 10 31.5 n 645
2008-10-28 05:36:15 C 22 30 28.841 +04 10 31.40 645
2008-10-28 05:37:27 C 22 30 28.738 +04 10 29.71 645
2008-10-28 05:37:27 C 22 30 28.74 +04 10 29.7 n 645
2008-10-28 05:39:50 C 22 30 28.529 +04 10 25.93 645
2008-10-28 05:39:50 C 22 30 28.53 +04 10 25.9 n 645
2008-10-28 05:41:02 C 22 30 28.428 +04 10 24.31 645
2008-10-28 05:41:02 C 22 30 28.43 +04 10 24.1 n 645
2009-04-21 08:08:39 C 14 11 31.77 -18 13 32.2 r G96
2009-04-21 08:18:36 C 14 11 31.02 -18 13 22.9 r G96
2009-04-21 08:28:33 C 14 11 30.22 -18 13 13.0 r G96
2017-03-18 11:37:49 C 13 52 24.588 -39 26 14.28 L F51
2017-03-18 11:50:47 C 13 52 22.892 -39 25 43.51 L F51
2017-03-18 12:03:47 C 13 52 21.205 -39 25 12.78 L F51
2017-03-18 12:16:49 C 13 52 19.511 -39 24 41.85 L F51
2017-05-14 03:09:23 C 12 54 43.40 -08 23 13.1 u H21
2017-05-14 03:19:19 C 12 54 43.49 -08 23 09.6 u H21
2017-05-14 03:33:19 C 12 54 43.64 -08 23 03.8 u H21
2024-09-01 07:51:34 C 22 44 54.762 +10 07 22.66 X F51
2024-09-01 08:26:18 C 22 44 52.488 +10 07 13.26 X F51
2024-09-01 08:43:41 C 22 44 51.369 +10 07 08.55 X F51
2024-09-05 07:25:46 C 22 38 38.550 +09 37 31.11 X F52
2024-09-05 07:44:46 C 22 38 37.206 +09 37 24.79 X F52
2024-09-05 08:03:46 C 22 38 35.899 +09 37 18.03 X F52
2024-09-10 07:16:33 C 22 30 18.310 +08 50 00.83 X F51
2024-09-10 07:31:44 C 22 30 17.210 +08 49 54.42 X F51
2024-09-10 07:46:57 C 22 30 16.078 +08 49 47.76 X F51
2025-03-25 06:58:02 C 09 04 55.068 -24 19 54.81 X F51
2025-03-25 07:13:06 C 09 05 00.507 -24 19 15.12 X F51
2025-03-25 07:28:08 C 09 05 05.926 -24 18 35.62 X F51
2025-03-25 07:43:11 C 09 05 11.350 -24 17 55.80 X F51
2025-03-28 21:07:13 C 09 33 40.906 -20 42 36.50 V M22
2025-03-28 21:07:52 C 09 33 41.141 -20 42 34.42 V M22
2025-03-28 21:15:43 C 09 33 43.354 -20 42 16.56 V M22
2025-03-28 21:19:08 C 09 33 44.395 -20 42 07.88 V M22
2025-03-28 21:23:45 C 09 33 45.686 -20 41 57.55 V M22
2025-03-28 21:49:35 C 09 33 53.062 -20 40 55.67 V M22
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2000-10-31 03:20:00 224099 1 Hz 2380 -1 -1
2000-11-01 03:45:00 58055821 8 us 2380 -1 -1
2000-11-04 05:10:00 34430726.2 0.8 us 2380 -1 -1
2000-11-06 05:16:00 21156876.1 2 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)