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
2025-09-23 07:35:24 C 23 03 16.902 +36 56 20.87 V 703
2025-09-23 07:38:46 C 23 03 16.664 +36 56 17.38 V 703
2025-09-23 09:39:07 C 23 03 09.173 +36 54 14.08 V T05
2025-09-23 09:44:20 C 23 03 08.820 +36 54 08.68 V T05
2025-09-23 09:55:10 C 23 03 08.062 +36 53 57.05 V T05
2025-09-23 10:10:29 C 23 03 07.034 +36 53 40.99 V T05
2025-09-24 01:34:50 B 23 02 08.287 +36 37 20.89 V R51
2025-09-24 01:56:08 B 23 02 06.910 +36 36 58.25 V R51
2025-09-24 02:17:50 B 23 02 05.477 +36 36 34.63 V R51
2025-09-25 06:16:36 C 23 00 23.864 +36 06 46.40 V 703
2025-09-25 06:20:33 C 23 00 23.605 +36 06 41.72 V 703
2025-09-25 06:24:36 C 23 00 23.353 +36 06 37.30 V 703
2025-09-25 06:29:06 C 23 00 23.072 +36 06 32.36 V 703
2025-09-25 09:19:32 C 23 00 13.037 +36 03 31.46 V T05
2025-09-25 09:27:24 C 23 00 12.535 +36 03 22.97 V T05
2025-09-25 09:37:33 C 23 00 11.890 +36 03 11.88 V T05
2025-09-25 09:42:08 C 23 00 11.594 +36 03 07.09 V T05
2025-09-25 22:05:49 B 22 59 28.627 +35 49 39.00 V R51
2025-09-25 22:19:50 B 22 59 27.727 +35 49 23.70 V R51
2025-09-25 22:33:41 B 22 59 26.911 +35 49 09.19 V R51
2025-09-25 22:54:13 C 22 59 25.802 +35 48 49.32 V R17
2025-09-25 23:20:02 C 22 59 24.218 +35 48 21.49 V R17
2025-09-25 23:39:50 C 22 59 23.004 +35 48 00.11 V R17
2025-09-25 23:59:27 C 22 59 21.794 +35 47 38.72 V R17
2025-09-26 23:05:06 B 22 58 04.162 +35 22 28.63 X J51
2025-09-26 23:17:01 B 22 58 03.475 +35 22 16.28 X J51
2025-09-26 23:28:58 B 22 58 02.774 +35 22 02.93 X J51
2025-09-27 23:15:10 C 22 56 46.262 +34 55 50.45 Z C23
2025-09-28 00:15:12 C 22 56 42.962 +34 54 43.56 Z C23
2025-09-28 01:02:28 C 22 56 40.392 +34 53 50.64 Z C23
2025-09-29 09:17:34 C 22 55 03.523 +34 18 12.60 V T05
2025-09-29 09:25:26 C 22 55 03.106 +34 18 03.82 V T05
2025-09-29 09:29:59 C 22 55 02.870 +34 17 58.81 V T05
2025-09-29 09:46:32 C 22 55 02.004 +34 17 40.20 V T05
2025-09-29 19:53:42 B 22 54 33.523 +34 06 18.36 V 160
2025-09-29 19:57:30 B 22 54 33.319 +34 06 14.18 V 160
2025-09-29 20:01:22 B 22 54 33.122 +34 06 09.83 V 160
2025-09-30 02:53:35 B 22 54 13.608 +33 58 29.89 X H89
2025-09-30 04:18:16 B 22 54 09.438 +33 56 55.04 X H89
2025-09-30 04:52:33 C 22 54 08.176 +33 56 19.61 V 703
2025-09-30 04:56:08 C 22 54 08.003 +33 56 15.58 V 703
2025-09-30 04:59:45 C 22 54 07.801 +33 56 11.51 V 703
2025-09-30 05:03:29 C 22 54 07.643 +33 56 07.62 V 703
2025-09-30 05:38:56 B 22 54 05.475 +33 55 24.26 X H89
2025-09-30 06:24:12 C 22 54 04.291 +33 54 38.55 X F51
2025-09-30 06:40:51 C 22 54 03.469 +33 54 20.15 X F51
2025-09-30 06:57:34 C 22 54 02.641 +33 54 01.69 X F51
2025-09-30 07:14:16 C 22 54 01.813 +33 53 43.20 X F51
2025-09-30 18:13:56 C 22 53 31.980 +33 41 15.43 Z C23
2025-09-30 19:58:41 C 22 53 27.146 +33 39 21.64 Z C23
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)