2022 UD9

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4026003555 ± 1.19e-07
Semi-major axis (a)1.4597446022 AU ± 2.49e-07
Inclination (i)9.02687169° ± 2.31e-06
Long. of Asc. Node (Ω)93.47057924° ± 6.46e-06
Arg. of Perihelion (ω)47.71064648° ± 6.34e-06
Mean Anomaly (M)213.35851973° ± 1.46e-04
Mean Motion (n)0.5588521925°/day ± 1.43e-07
Perihelion dist (q)0.87205091 AU ± 2.29e-07
Aphelion dist (Q)2.04743830 AU ± 3.90e-07
Orbital Period1.76366183 yr ± 4.51e-07
Physical Parameters
H (abs. magnitude)21.81
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.192″
Uncertainty0
Orbit TypeApollo
MOID0.011961 AU
Observations Used165
Radar Obs Used3
Oppositions1
Arc Total2022-2023
First Observation Used2022-10-17
Last Observation Used2023-06-19
Observations (166)
Date Type RA Dec Mag Band Observatory
2022-12-18 22:02:16 C 04 06 57.175 -36 44 32.32 V M22
2022-12-18 22:07:38 C 04 06 53.635 -36 45 57.13 V M22
2022-12-18 22:17:01 C 04 06 47.438 -36 48 25.52 V M22
2022-12-18 22:40:01 C 04 06 32.222 -36 54 28.98 V M22
2022-12-20 20:43:26 C 03 07 48.103 -56 12 13.39 V M22
2022-12-20 20:51:11 C 03 07 23.899 -56 16 50.95 V M22
2022-12-20 21:07:00 C 03 06 33.967 -56 26 18.92 V M22
2022-12-20 21:11:35 C 03 06 19.442 -56 29 03.08 V M22
2022-12-20 21:19:23 C 03 05 54.559 -56 33 42.52 V M22
2022-12-20 21:36:23 C 03 04 59.738 -56 43 52.68 V M22
2023-06-16 05:18:44 C 17 23 14.06 -18 35 03.6 V 807
2023-06-16 05:32:03 C 17 23 12.79 -18 35 10.2 V 807
2023-06-16 05:45:22 C 17 23 11.59 -18 35 17.2 V 807
2023-06-18 22:25:23 C 17 17 37.766 -19 07 06.78 X Z84
2023-06-19 11:58:13 C 17 16 29.572 -19 13 26.76 V T12
2023-06-19 12:27:49 C 17 16 27.034 -19 13 40.26 V T12
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2022-12-29 14:30:00 -553103.089 1 Hz 8560 -14 -14
2022-12-29 14:40:00 44000745.806 10 us 8560 -14 -14
2022-12-29 15:00:00 44078445.723 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)