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
2006-12-12 22:44:07 C 05 14 27.42 +23 27 37.5 c A24
2006-12-13 21:17:02 C 05 12 31.13 +23 16 53.6 c A24
2006-12-13 21:18:27 C 05 12 31.03 +23 16 52.7 c A24
2006-12-13 21:25:42 C 05 12 30.36 +23 16 49.6 c 104
2006-12-13 21:52:23 C 05 12 28.03 +23 16 36.6 c A24
2006-12-13 22:03:48 C 05 12 27.03 +23 16 31.3 c 104
2006-12-13 23:00:13 C 05 12 22.05 +23 16 04.1 c A24
2006-12-13 23:01:39 C 05 12 21.95 +23 16 03.5 c A24
2006-12-14 06:28:49 C 05 11 43.42 +23 12 31.9 17.2 c 704
2006-12-14 06:47:45 C 05 11 41.77 +23 12 21.6 17.5 c 704
2006-12-14 07:06:42 C 05 11 40.11 +23 12 12.4 17.4 c 704
2006-12-14 07:25:44 C 05 11 38.41 +23 12 03.2 17.2 c 704
2006-12-14 07:44:46 C 05 11 36.75 +23 11 53.3 18.2 c 704
2006-12-14 21:29:00 C 05 10 26.12 +23 05 13.5 c 104
2006-12-14 21:43:48 C 05 10 24.82 +23 05 06.4 c 104
2006-12-14 21:59:41 C 05 10 23.41 +23 04 58.8 c 104
2006-12-14 22:36:48 C 05 10 20.17 +23 04 40.3 c A24
2006-12-14 22:38:14 C 05 10 20.03 +23 04 39.7 c A24
2006-12-14 23:07:03 C 05 10 17.51 +23 04 26.1 c A24
2006-12-15 00:06:08 C 05 10 12.27 +23 03 57.0 c A24
2006-12-15 00:07:34 C 05 10 12.14 +23 03 56.2 c A24
2006-12-15 06:11:58 C 05 09 41.11 +23 01 01.1 17.8 c 704
2006-12-15 06:31:03 C 05 09 39.40 +23 00 50.0 17.8 c 704
2006-12-15 06:49:47 C 05 09 37.76 +23 00 43.5 18.0 c 704
2006-12-15 07:08:46 C 05 09 36.12 +23 00 32.4 17.8 c 704
2006-12-15 07:27:45 C 05 09 34.39 +23 00 24.0 17.5 c 704
2006-12-15 08:35:00 C 05 09 28.40 +22 59 50.7 r 703
2006-12-15 08:40:17 C 05 09 27.93 +22 59 48.0 r 703
2006-12-15 08:45:36 C 05 09 27.46 +22 59 45.4 r 703
2006-12-15 08:50:54 C 05 09 27.00 +22 59 42.6 r 703
2006-12-15 10:11:44 C 05 09 19.83 +22 59 03.2 r 703
2006-12-15 10:15:16 C 05 09 19.58 +22 59 01.4 r 703
2006-12-15 10:18:46 C 05 09 19.29 +22 59 00.1 r 703
2006-12-15 10:22:17 C 05 09 19.08 +22 58 58.7 r 703
2006-12-15 20:05:03 C 05 08 29.62 +22 54 10.1 r 240
2006-12-15 20:07:28 C 05 08 29.39 +22 54 09.0 r 240
2006-12-15 20:12:19 C 05 08 28.97 +22 54 06.7 r 240
2006-12-15 20:14:44 C 05 08 28.76 +22 54 05.4 r 240
2006-12-15 20:17:09 C 05 08 28.55 +22 54 04.2 r 240
2006-12-18 06:21:48 C 05 03 30.14 +22 25 14.9 17.9 c 704
2006-12-18 06:40:28 C 05 03 28.52 +22 25 06.9 18.9 c 704
2006-12-18 06:59:09 C 05 03 26.89 +22 24 54.1 19.6 c 704
2006-12-18 07:17:51 C 05 03 25.27 +22 24 46.4 18.2 c 704
2006-12-18 07:36:39 C 05 03 23.61 +22 24 37.1 17.9 c 704
2006-12-18 21:34:33 C 05 02 12.59 +22 17 30.8 18.1 r 084
2006-12-18 21:38:43 C 05 02 12.23 +22 17 29.1 18.0 r 084
2006-12-20 00:02:01 C 04 59 58.45 +22 04 05.3 18.0 r 084
2006-12-20 00:06:11 C 04 59 58.12 +22 04 03.1 17.6 r 084
2006-12-21 08:07:09 C 04 57 17.78 +21 47 46.2 r 703
2006-12-21 08:16:33 C 04 57 16.95 +21 47 41.1 r 703
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)