2018 UQ1

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4916250537 ± 4.11e-09
Semi-major axis (a)1.6143920429 AU ± 1.28e-09
Inclination (i)1.61560793° ± 6.73e-07
Long. of Asc. Node (Ω)254.28718813° ± 1.71e-05
Arg. of Perihelion (ω)220.06992137° ± 1.64e-05
Mean Anomaly (M)131.84547388° ± 8.77e-07
Mean Motion (n)0.4805059432°/day ± 5.69e-10
Perihelion dist (q)0.82071647 AU ± 6.67e-09
Aphelion dist (Q)2.40806762 AU ± 6.91e-09
Orbital Period2.05122600 yr ± 2.43e-09
Physical Parameters
H (abs. magnitude)21.95
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.240″
Uncertainty0
Orbit TypeApollo
MOID0.010076 AU
Observations Used282
Radar Obs Used4
Oppositions3
Arc Total2018-2023
First Observation Used2018-10-20
Last Observation Used2023-04-19
Observations (311)
Date Type RA Dec Mag Band Observatory
2023-04-02 04:58:45 C 12 18 15.444 -17 49 58.91 V 703
2023-04-02 05:06:30 C 12 18 15.930 -17 49 42.20 V 703
2023-04-02 05:14:15 C 12 18 16.290 -17 49 25.64 V 703
2023-04-17 07:06:31 C 12 32 50.622 -10 55 36.62 V 703
2023-04-17 07:14:47 C 12 32 50.654 -10 55 31.44 V 703
2023-04-17 07:23:03 C 12 32 50.809 -10 55 26.94 V 703
2023-04-17 07:31:19 C 12 32 50.996 -10 55 23.05 V 703
2023-04-19 06:47:55 C 12 34 06.690 -10 29 25.01 V G96
2023-04-19 06:55:21 C 12 34 06.816 -10 29 21.08 V G96
2023-04-19 07:02:46 C 12 34 06.942 -10 29 17.34 V G96
2023-04-19 07:10:11 C 12 34 07.086 -10 29 13.56 V G96
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2023-03-11 20:40:00 557137.407 1 Hz 8560 -14 -14
2023-03-11 22:30:00 47289910.21 2 us 8560 -14 -14
2023-03-11 23:20:00 540247.964 0.5 Hz 8560 -14 -14
2023-03-12 21:00:00 42287074.1 0.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)