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
2016-03-01 20:33:41 C 05 12 01.52 +05 34 32.6 q 160
2016-03-03 20:07:52 C 05 13 10.90 +05 32 35.5 q 160
2016-03-03 20:10:08 C 05 13 10.94 +05 32 35.7 q 160
2016-03-03 20:12:25 C 05 13 11.01 +05 32 35.8 q 160
2016-03-04 02:47:37 C 05 13 21.45 +05 32 22.2 q H45
2016-03-04 02:49:49 C 05 13 21.50 +05 32 22.2 q H45
2016-03-04 02:51:07 C 05 13 21.57 +05 32 22.0 q H45
2016-03-04 02:53:19 C 05 13 21.62 +05 32 21.9 q H45
2016-03-04 02:54:49 C 05 13 21.64 +05 32 21.8 q H45
2016-03-04 02:56:33 C 05 13 21.69 +05 32 21.8 q H45
2016-03-05 06:08:01 C 05 14 06.966 +05 31 28.01 L F51
2016-03-05 06:25:12 C 05 14 07.418 +05 31 27.42 L F51
2016-03-05 06:42:21 C 05 14 07.872 +05 31 26.82 L F51
2016-03-05 06:59:28 C 05 14 08.325 +05 31 26.24 L F51
2016-03-05 07:00:21 C 05 14 08.36 +05 31 26.1 L T05
2016-03-05 07:31:26 C 05 14 09.14 +05 31 24.8 L T05
2016-03-05 08:02:40 C 05 14 10.01 +05 31 24.2 L T05
2016-03-05 08:33:50 C 05 14 10.82 +05 31 23.6 L T05
2016-03-06 02:21:51 C 05 14 42.69 +05 30 47.2 q H45
2016-03-06 02:23:58 C 05 14 42.79 +05 30 47.1 q H45
2016-03-06 02:25:17 C 05 14 42.82 +05 30 47.0 q H45
2016-03-06 02:26:43 C 05 14 42.84 +05 30 47.0 q H45
2016-03-06 02:28:09 C 05 14 42.91 +05 30 46.9 q H45
2016-03-06 02:29:52 C 05 14 42.96 +05 30 46.9 q H45
2016-03-18 20:08:29 C 05 27 12.11 +05 25 15.6 q 160
2016-03-18 20:10:45 C 05 27 12.23 +05 25 15.3 q 160
2016-03-18 20:13:02 C 05 27 12.35 +05 25 14.9 q 160
2016-03-19 19:01:12 C 05 28 22.79 +05 24 59.2 q 160
2016-03-19 19:03:29 C 05 28 22.90 +05 24 59.4 q 160
2016-03-19 19:05:45 C 05 28 23.03 +05 24 59.2 q 160
2016-03-26 01:30:59 C 05 36 52.10 +05 23 03.9 u H21
2016-03-26 01:34:06 C 05 36 52.29 +05 23 04.0 u H21
2016-03-26 01:37:12 C 05 36 52.47 +05 23 04.0 u H21
2016-03-26 01:40:18 C 05 36 52.65 +05 23 04.0 u H21
2016-03-26 01:43:24 C 05 36 52.83 +05 23 03.9 u H21
2016-03-26 01:46:31 C 05 36 53.01 +05 23 03.9 u H21
2016-03-26 01:49:37 C 05 36 53.21 +05 23 03.7 u H21
2016-03-26 01:52:43 C 05 36 53.38 +05 23 03.6 u H21
2016-03-26 01:55:32 C 05 36 53.56 +05 23 03.7 u H21
2016-03-26 19:29:15 C 05 37 57.89 +05 22 47.3 q 160
2016-03-26 19:31:30 C 05 37 58.07 +05 22 47.2 q 160
2016-03-26 19:33:46 C 05 37 58.25 +05 22 46.6 q 160
2016-04-03 02:22:29 C 05 49 32.32 +05 19 13.0 q H45
2016-04-03 02:24:12 C 05 49 32.42 +05 19 12.9 q H45
2016-04-03 02:25:42 C 05 49 32.52 +05 19 12.9 q H45
2016-04-03 02:27:14 C 05 49 32.64 +05 19 12.6 q H45
2016-04-03 02:28:40 C 05 49 32.74 +05 19 12.5 q H45
2016-04-06 19:08:50 C 05 56 00.63 +05 16 31.2 q 160
2016-04-06 19:11:08 C 05 56 00.79 +05 16 31.2 q 160
2016-04-06 19:13:28 C 05 56 00.94 +05 16 31.1 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)