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
2017-12-05 14:22:50 C 10 40 57.79 -06 47 31.3 U T08
2017-12-05 18:58:36 S 10 41 24.982 -06 53 31.09 L C51
2017-12-06 01:15:36 S 10 42 02.978 -07 01 53.87 L C51
2017-12-06 07:32:47 S 10 42 40.985 -07 10 18.98 L C51
2017-12-11 13:46:21 C 10 55 46.48 -10 05 55.0 U T05
2017-12-11 13:56:26 C 10 55 47.54 -10 06 09.5 U T05
2017-12-11 14:06:26 C 10 55 48.62 -10 06 23.7 U T05
2017-12-11 14:16:30 C 10 55 49.65 -10 06 38.9 U T05
2017-12-13 13:39:32 C 11 00 56.11 -11 16 04.2 U T08
2017-12-13 13:49:39 C 11 00 57.19 -11 16 19.1 U T08
2017-12-13 13:59:48 C 11 00 58.28 -11 16 34.0 U T08
2017-12-13 14:09:56 C 11 00 59.35 -11 16 49.2 U T08
2017-12-13 20:13:26 S 11 01 38.49 -11 25 44.2 L C51
2017-12-13 20:13:37 S 11 01 38.54 -11 25 44.6 L C51
2017-12-13 23:22:07 S 11 01 59.19 -11 30 25.3 L C51
2017-12-14 02:30:37 S 11 02 19.84 -11 35 07.4 L C51
2017-12-14 05:39:08 S 11 02 40.55 -11 39 50.8 L C51
2017-12-14 08:47:37 S 11 03 01.260 -11 44 33.22 L C51
2017-12-14 11:56:18 S 11 03 22.082 -11 49 16.75 L C51
2017-12-14 15:04:49 S 11 03 42.76 -11 54 00.2 L C51
2017-12-14 18:13:19 S 11 04 03.69 -11 58 45.6 L C51
2017-12-14 21:21:49 S 11 04 24.566 -12 03 30.71 L C51
2017-12-15 00:30:19 S 11 04 45.49 -12 08 16.7 L C51
2017-12-15 03:38:49 S 11 05 06.40 -12 13 03.2 L C51
2017-12-15 06:47:19 S 11 05 27.430 -12 17 50.82 L C51
2017-12-15 06:47:30 S 11 05 27.382 -12 17 49.24 L C51
2017-12-15 09:56:00 S 11 05 48.379 -12 22 37.31 L C51
2017-12-15 13:04:30 S 11 06 09.43 -12 27 25.1 L C51
2017-12-15 16:13:00 S 11 06 30.47 -12 32 13.2 L C51
2017-12-15 17:47:15 S 11 06 41.08 -12 34 37.1 L C51
2017-12-15 22:30:00 S 11 07 12.82 -12 41 50.6 L C51
2017-12-16 01:38:41 S 11 07 33.97 -12 46 40.8 L C51
2017-12-16 03:12:56 S 11 07 44.59 -12 49 05.9 L C51
2017-12-16 04:47:11 S 11 07 55.22 -12 51 31.6 L C51
2017-12-16 07:55:41 S 11 08 16.481 -12 56 22.45 L C51
2017-12-16 09:29:56 S 11 08 26.978 -12 58 48.68 L C51
2017-12-16 10:46:33 C 11 08 36.35 -13 00 56.0 U 703
2017-12-16 10:53:52 C 11 08 37.14 -13 01 06.6 U 703
2017-12-16 11:01:09 C 11 08 37.97 -13 01 18.7 U 703
2017-12-16 11:08:28 C 11 08 38.79 -13 01 29.5 U 703
2017-12-16 12:38:26 S 11 08 48.44 -13 03 40.4 L C51
2017-12-16 17:21:12 S 11 09 20.43 -13 10 58.9 L C51
2017-12-16 17:21:22 S 11 09 20.40 -13 10 55.9 L C51
2017-12-16 22:04:08 S 11 09 52.65 -13 18 20.0 L C51
2017-12-16 23:38:23 S 11 10 03.331 -13 20 45.31 L C51
2017-12-17 02:46:52 S 11 10 24.81 -13 25 40.0 L C51
2017-12-17 07:29:38 S 11 10 57.144 -13 33 02.38 L C51
2017-12-17 13:33:52 C 11 11 39.48 -13 42 40.9 U T08
2017-12-17 13:45:24 C 11 11 40.75 -13 42 59.3 U T08
2017-12-17 13:56:49 C 11 11 42.05 -13 43 16.8 U T08
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)