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
2016-08-18 11:55:55 C 17 06 26.48 +29 37 09.7 o 300
2016-08-18 11:58:31 C 17 06 27.13 +29 37 07.4 o 300
2016-08-18 11:59:50 C 17 06 27.51 +29 37 06.4 o 300
2016-08-20 21:14:41 C 17 21 55.73 +28 47 24.5 o 108
2016-08-20 21:17:24 C 17 21 56.44 +28 47 21.8 o 108
2016-08-20 21:20:08 C 17 21 57.08 +28 47 19.2 o 108
2016-08-21 03:03:50 C 17 23 26.49 +28 42 16.5 q H06
2016-08-21 03:04:18 C 17 23 26.62 +28 42 16.2 q H06
2016-08-21 03:04:45 C 17 23 26.73 +28 42 15.6 q H06
2016-08-21 03:05:11 C 17 23 26.84 +28 42 15.4 q H06
2016-08-21 03:05:37 C 17 23 26.94 +28 42 14.9 q H06
2016-08-21 03:06:04 C 17 23 27.07 +28 42 14.6 q H06
2016-08-21 03:06:30 C 17 23 27.17 +28 42 14.1 q H06
2016-08-21 03:07:02 C 17 23 27.30 +28 42 13.6 q H06
2016-08-21 03:07:29 C 17 23 27.42 +28 42 13.3 q H06
2016-08-21 03:07:55 C 17 23 27.51 +28 42 12.9 q H06
2016-08-21 12:37:21 C 17 25 52.28 +28 33 33.1 o 300
2016-08-21 12:40:58 C 17 25 53.20 +28 33 30.5 o 300
2016-08-21 12:42:46 C 17 25 53.72 +28 33 28.9 o 300
2016-08-21 12:44:35 C 17 25 54.09 +28 33 25.7 o 300
2016-08-21 12:46:23 C 17 25 54.57 +28 33 25.4 o 300
2016-08-21 12:48:12 C 17 25 54.99 +28 33 23.4 o 300
2016-08-21 12:50:00 C 17 25 55.46 +28 33 21.4 o 300
2016-08-21 21:10:03 C 17 28 01.63 +28 25 38.5 q D08
2016-08-21 21:21:16 C 17 28 04.39 +28 25 27.6 q D08
2016-08-21 21:32:43 C 17 28 07.17 +28 25 17.1 q D08
2016-08-21 21:43:07 C 17 28 09.75 +28 25 07.0 q D08
2016-08-22 07:30:44 C 17 30 35.93 +28 16 16.7 L T05
2016-08-22 07:45:24 C 17 30 39.45 +28 16 02.7 L T05
2016-08-22 08:01:39 C 17 30 43.34 +28 15 47.2 L T05
2016-08-22 08:15:22 C 17 30 46.62 +28 15 34.1 L T05
2016-08-22 19:42:48 C 17 33 35.47 +28 04 44.4 15.9 q K78
2016-08-22 19:52:03 C 17 33 37.68 +28 04 35.7 q 160
2016-08-22 19:54:08 C 17 33 38.16 +28 04 33.6 q 160
2016-08-22 19:56:10 C 17 33 38.65 +28 04 31.6 q 160
2016-08-22 20:24:39 C 17 33 45.34 +28 04 05.3 o 108
2016-08-22 20:26:46 C 17 33 45.82 +28 04 02.7 o 108
2016-08-22 20:33:08 C 17 33 47.31 +28 03 56.8 o 108
2016-08-22 20:37:22 C 17 33 48.30 +28 03 52.9 o 108
2016-08-22 20:43:52 C 17 33 49.93 +28 03 46.5 15.7 q K78
2016-08-23 02:34:33 C 17 35 14.69 +27 58 18.2 q W19
2016-08-23 02:41:09 C 17 35 16.24 +27 58 11.5 q W19
2016-08-23 02:47:29 C 17 35 17.70 +27 58 05.3 q W19
2016-08-23 02:54:41 C 17 35 19.38 +27 57 58.4 q W19
2016-08-23 03:01:02 C 17 35 20.87 +27 57 52.6 q W19
2016-08-23 19:24:13 C 17 39 14.66 +27 42 21.9 15.8 q K78
2016-08-23 20:26:08 C 17 39 28.84 +27 41 22.4 15.7 q K78
2016-08-25 19:44:13 C 17 50 12.84 +26 55 49.6 q 160
2016-08-25 19:44:30 C 17 50 12.84 +26 55 49.6 q 160
2016-08-25 19:46:18 C 17 50 13.28 +26 55 47.6 q 160
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)