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
2025-01-09 22:17:13 C 08 29 36.341 -08 16 50.12 Z C23
2025-01-09 22:26:04 C 08 29 35.614 -08 16 41.74 V M22
2025-01-09 22:58:08 C 08 29 33.262 -08 17 23.68 V M22
2025-01-09 23:02:41 C 08 29 32.930 -08 17 29.62 V M22
2025-01-09 23:13:06 C 08 29 32.162 -08 17 43.15 V M22
2025-01-11 05:47:33 C 08 27 20.988 -08 58 04.44 V G96
2025-01-11 05:54:56 C 08 27 20.423 -08 58 14.20 V G96
2025-01-11 06:02:22 C 08 27 19.850 -08 58 24.10 V G96
2025-01-11 06:09:48 C 08 27 19.282 -08 58 33.92 V G96
2025-01-12 04:48:05 C 08 25 36.660 -09 28 10.96 V W68
2025-01-12 04:50:41 C 08 25 36.449 -09 28 14.56 V W68
2025-01-12 04:55:15 C 08 25 36.060 -09 28 20.71 V W68
2025-01-12 06:18:29 C 08 25 29.939 -09 30 27.29 V 703
2025-01-12 06:21:46 C 08 25 29.723 -09 30 31.28 V 703
2025-01-12 06:25:02 C 08 25 29.420 -09 30 35.60 V 703
2025-01-12 06:30:24 C 08 25 29.010 -09 30 42.80 V 703
2025-01-12 23:35:08 B 08 24 08.546 -09 53 26.27 X K87
2025-01-12 23:38:17 B 08 24 08.290 -09 53 30.52 X K87
2025-01-12 23:41:28 B 08 24 08.018 -09 53 34.73 X K87
2025-01-15 13:56:12 C 08 18 55.291 -11 16 40.44 V T08
2025-01-15 14:47:26 C 08 18 50.642 -11 17 48.73 V T08
2025-01-15 15:18:46 C 08 18 47.815 -11 18 30.35 V T08
2025-01-15 15:21:54 C 08 18 47.537 -11 18 34.60 V T08
2025-01-17 23:51:48 C 08 13 37.858 -12 34 20.89 V M22
2025-01-17 23:57:42 C 08 13 37.262 -12 34 28.81 V M22
2025-01-17 23:58:21 C 08 13 37.190 -12 34 29.57 V M22
2025-01-18 00:13:05 C 08 13 35.734 -12 34 49.58 V M22
2025-01-18 00:23:32 C 08 13 34.685 -12 35 03.55 V M22
2025-01-19 05:57:22 C 08 10 42.240 -13 14 50.82 V W68
2025-01-19 06:46:38 C 08 10 37.138 -13 15 56.77 V W68
2025-01-19 07:24:45 C 08 10 33.204 -13 16 47.71 V W68
2025-01-19 09:50:55 C 08 10 19.526 -13 20 19.82 V T08
2025-01-19 09:53:34 C 08 10 19.246 -13 20 23.35 V T08
2025-01-19 09:58:52 C 08 10 18.689 -13 20 30.48 V T08
2025-01-19 10:41:29 C 08 10 14.225 -13 21 27.90 V T08
2025-01-19 23:47:02 C 08 08 54.936 -13 38 47.33 V M22
2025-01-20 00:26:59 C 08 08 50.717 -13 39 40.79 V M22
2025-01-20 01:07:14 C 08 08 46.457 -13 40 34.50 V M22
2025-01-20 01:43:12 C 08 08 42.682 -13 41 22.45 V M22
2025-01-22 10:09:56 C 08 02 47.213 -14 57 04.59 X F51
2025-01-22 10:25:54 C 08 02 45.391 -14 57 25.88 X F51
2025-01-22 10:41:50 C 08 02 43.581 -14 57 46.99 X F51
2025-01-23 05:13:46 C 08 00 41.438 -15 22 04.55 V W68
2025-01-23 05:18:21 C 08 00 40.901 -15 22 10.56 V W68
2025-01-23 05:34:22 C 08 00 39.053 -15 22 31.62 V W68
2025-01-23 10:29:31 C 08 00 06.434 -15 29 17.20 V T08
2025-01-23 10:34:10 C 08 00 05.892 -15 29 23.35 V T08
2025-01-23 10:42:46 C 08 00 04.884 -15 29 34.73 V T08
2025-01-23 22:28:49 C 07 58 45.833 -15 44 48.34 V M22
2025-01-23 22:33:23 C 07 58 45.293 -15 44 54.28 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)