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
2025-03-28 21:50:52 C 09 33 53.498 -20 40 51.89 V M22
2025-03-31 04:19:59 C 09 48 59.580 -18 37 58.01 V G96
2025-03-31 04:27:20 C 09 49 01.412 -18 37 42.02 V G96
2025-03-31 04:34:39 C 09 49 03.227 -18 37 26.29 V G96
2025-03-31 04:41:59 C 09 49 05.056 -18 37 10.42 V G96
2025-04-27 06:01:14 C 11 23 15.557 -05 52 58.24 X F51
2025-04-27 06:19:10 C 11 23 17.057 -05 52 49.06 X F51
2025-04-27 06:37:04 C 11 23 18.554 -05 52 40.17 X F51
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)