16834 (1997 WU22)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4421590203 ± 5.06e-09
Semi-major axis (a)1.4679035853 AU ± 1.60e-10
Inclination (i)15.99741496° ± 7.43e-07
Long. of Asc. Node (Ω)260.74744858° ± 2.68e-06
Arg. of Perihelion (ω)334.40245930° ± 2.68e-06
Mean Anomaly (M)109.14249919° ± 9.50e-07
Mean Motion (n)0.5541993082°/day ± 9.06e-11
Perihelion dist (q)0.81885677 AU ± 7.42e-09
Aphelion dist (Q)2.11695040 AU ± 7.42e-09
Orbital Period1.77846899 yr ± 2.91e-10
Physical Parameters
H (abs. magnitude)15.75
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.237″
Uncertainty0
Orbit TypeApollo
MOID0.147093 AU
Observations Used4437
Radar Obs Used1
Gaia Obs Used67
Oppositions12
Arc Total1988-2025
First Observation Used1988-10-08
Last Observation Used2025-12-16
Observations (4859)
Date Type RA Dec Mag Band Observatory
2025-02-09 21:08:14 C 07 06 28.162 -23 30 58.93 V M22
2025-02-09 21:12:50 C 07 06 27.509 -23 31 03.04 V M22
2025-02-09 21:28:21 C 07 06 25.313 -23 31 17.00 V M22
2025-02-09 21:36:53 C 07 06 24.115 -23 31 24.78 V M22
2025-02-10 07:55:49 C 07 05 00.494 -23 41 08.21 X F52
2025-02-10 08:11:19 C 07 04 58.281 -23 41 22.26 X F52
2025-02-10 08:26:51 C 07 04 56.076 -23 41 36.23 X F52
2025-02-10 08:42:22 C 07 04 53.865 -23 41 50.21 X F52
2025-02-11 03:32:30 C 07 02 20.232 -23 58 20.03 V W68
2025-02-11 03:44:42 C 07 02 18.497 -23 58 30.65 V W68
2025-02-11 03:59:30 C 07 02 16.418 -23 58 43.39 V W68
2025-02-12 03:13:27 C 06 59 07.872 -24 18 48.31 V W68
2025-02-12 03:17:25 C 06 59 07.313 -24 18 51.55 V W68
2025-02-12 03:25:59 C 06 59 06.108 -24 18 58.86 V W68
2025-02-12 22:21:12 C 06 56 32.539 -24 34 46.31 V M22
2025-02-12 22:25:51 C 06 56 31.891 -24 34 50.12 V M22
2025-02-12 22:33:18 C 06 56 30.852 -24 34 56.10 V M22
2025-02-12 22:47:26 C 06 56 28.882 -24 35 07.44 V M22
2025-02-13 21:06:25 C 06 53 29.434 -24 53 12.01 V M22
2025-02-13 21:11:02 C 06 53 28.790 -24 53 15.58 V M22
2025-02-13 21:19:45 C 06 53 27.574 -24 53 22.52 V M22
2025-02-15 04:04:58 C 06 49 20.986 -25 17 11.29 V W68
2025-02-15 04:10:18 C 06 49 20.246 -25 17 15.18 V W68
2025-02-15 04:20:54 C 06 49 18.785 -25 17 22.88 V W68
2025-02-15 04:36:21 C 06 49 16.656 -25 17 34.19 V W68
2025-02-16 02:52:57 C 06 46 20.218 -25 34 04.84 V W68
2025-02-16 02:57:33 C 06 46 19.586 -25 34 08.11 V W68
2025-02-16 03:11:53 C 06 46 17.614 -25 34 18.34 V W68
2025-02-16 03:19:25 C 06 46 16.570 -25 34 23.70 V W68
2025-02-16 20:53:06 C 06 43 58.128 -25 46 55.81 V M22
2025-02-16 21:01:55 C 06 43 56.928 -25 47 01.90 V M22
2025-02-16 21:16:48 C 06 43 54.895 -25 47 12.08 V M22
2025-02-17 18:27:48 C 06 41 10.046 -26 01 49.40 V M22
2025-02-17 18:30:24 C 06 41 09.686 -26 01 51.24 V M22
2025-02-17 18:34:20 C 06 41 09.154 -26 01 54.01 V M22
2025-02-17 18:59:06 C 06 41 05.779 -26 02 10.79 V M22
2025-02-18 12:04:41 B 06 38 52.35 -26 13 32.9 q Q73
2025-02-18 12:09:51 B 06 38 51.64 -26 13 36.3 q Q73
2025-02-18 12:15:02 B 06 38 50.94 -26 13 39.5 q Q73
2025-02-19 02:51:18 C 06 36 58.416 -26 23 07.15 V W68
2025-02-19 02:58:44 C 06 36 57.418 -26 23 11.80 V W68
2025-02-19 03:03:31 C 06 36 56.779 -26 23 14.89 V W68
2025-02-19 03:21:00 C 06 36 54.434 -26 23 25.69 V W68
2025-02-20 02:15:19 C 06 33 59.803 -26 37 44.26 V W68
2025-02-20 02:19:57 C 06 33 59.184 -26 37 47.06 V W68
2025-02-20 02:34:05 C 06 33 57.314 -26 37 55.49 V W68
2025-02-21 20:06:09 C 06 28 45.329 -27 02 18.67 V M22
2025-02-21 20:10:11 C 06 28 44.806 -27 02 20.83 V M22
2025-02-21 20:18:51 C 06 28 43.682 -27 02 25.58 V M22
2025-02-21 20:34:36 C 06 28 41.640 -27 02 34.37 V M22
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2000-07-22 21:46:00 226599087.9 12 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)