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
2006-11-18 10:17:07 C 05 57 29.91 +27 02 33.4 c 691
2006-11-19 07:44:49 C 05 56 21.97 +26 56 58.6 18.2 c 704
2006-11-19 08:20:36 C 05 56 19.90 +26 56 49.3 18.6 c 704
2006-11-19 08:38:23 C 05 56 18.93 +26 56 44.9 18.5 c 704
2006-11-20 09:51:46 C 05 54 55.35 +26 49 59.4 c 691
2006-11-20 10:16:41 C 05 54 53.85 +26 49 52.9 c 691
2006-11-20 10:41:36 C 05 54 52.40 +26 49 45.8 c 691
2006-11-21 00:54:13 C 05 54 04.36 +26 45 51.1 o 493
2006-11-21 02:27:48 C 05 53 58.57 +26 45 24.9 o 493
2006-11-21 03:30:21 C 05 53 54.70 +26 45 03.7 o 493
2006-11-21 04:01:31 C 05 53 52.38 +26 45 03.9 o 493
2006-11-21 07:22:22 C 05 53 41.90 +26 44 04.9 17.9 c 704
2006-11-21 07:40:06 C 05 53 40.83 +26 44 00.0 18.2 c 704
2006-11-21 07:57:51 C 05 53 39.77 +26 43 55.2 18.5 c 704
2006-11-21 08:15:38 C 05 53 38.69 +26 43 50.2 18.5 c 704
2006-11-21 08:33:25 C 05 53 37.64 +26 43 45.2 18.6 c 704
2006-11-22 22:08:23 C 05 51 22.69 +26 32 55.2 o 493
2006-11-22 22:31:08 C 05 51 21.20 +26 32 50.2 o 493
2006-11-22 22:52:14 C 05 51 19.98 +26 32 42.6 o 493
2006-11-22 23:06:11 C 05 51 19.08 +26 32 39.2 o 493
2006-11-23 22:30:40 C 05 49 51.40 +26 25 41.5 o 493
2006-11-23 22:49:27 C 05 49 50.06 +26 25 33.9 o 493
2006-11-23 23:09:02 C 05 49 48.97 +26 25 28.5 o 493
2006-11-24 09:07:57 C 05 49 10.31 +26 22 27.9 c 691
2006-11-24 09:32:55 C 05 49 08.64 +26 22 20.4 c 691
2006-11-24 09:57:55 C 05 49 06.98 +26 22 12.6 c 691
2006-11-28 08:03:53 C 05 42 43.23 +25 51 41.8 18.6 c 704
2006-11-28 08:22:15 C 05 42 41.75 +25 51 33.5 18.4 c 704
2006-11-28 08:40:45 C 05 42 40.41 +25 51 26.4 18.6 c 704
2006-11-28 08:59:25 C 05 42 38.97 +25 51 21.2 18.5 c 704
2006-12-08 06:28:53 C 05 24 00.80 +24 18 41.6 17.4 447
2006-12-08 06:56:32 C 05 23 58.43 +24 18 29.9 17.5 447
2006-12-08 07:10:22 C 05 23 57.25 +24 18 23.9 17.4 447
2006-12-10 03:36:43 C 05 20 12.48 +23 58 40.2 c 691
2006-12-10 04:01:45 C 05 20 10.29 +23 58 29.0 c 691
2006-12-10 04:26:47 C 05 20 08.15 +23 58 18.1 c 691
2006-12-10 21:23:48 C 05 18 41.34 +23 50 34.3 c A24
2006-12-10 21:25:12 C 05 18 41.20 +23 50 33.7 c A24
2006-12-10 23:51:50 C 05 18 28.39 +23 49 26.7 c A24
2006-12-10 23:53:17 C 05 18 28.26 +23 49 26.1 c A24
2006-12-12 07:42:17 C 05 15 44.74 +23 34 43.3 r G96
2006-12-12 07:56:21 C 05 15 43.52 +23 34 36.8 r G96
2006-12-12 08:10:19 C 05 15 42.30 +23 34 30.2 r G96
2006-12-12 08:29:13 C 05 15 40.64 +23 34 21.3 r G96
2006-12-12 20:18:50 C 05 14 40.13 +23 28 44.8 r A13
2006-12-12 20:46:59 C 05 14 37.67 +23 28 31.7 r A13
2006-12-12 21:16:52 C 05 14 35.06 +23 28 17.8 r A13
2006-12-12 21:33:55 C 05 14 33.58 +23 28 10.2 c A24
2006-12-12 21:35:21 C 05 14 33.43 +23 28 09.6 c A24
2006-12-12 22:42:42 C 05 14 27.48 +23 27 38.0 c A24
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)