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
2016-10-23 17:46:45 C 20 51 11.16 +10 06 06.8 q Z52
2016-10-23 18:29:54 C 20 51 15.08 +10 05 52.3 q Z52
2016-10-27 06:29:58 C 20 58 58.91 +09 38 52.0 L T05
2016-10-27 06:50:54 C 20 59 00.71 +09 38 44.7 L T05
2016-10-27 07:14:02 C 20 59 02.79 +09 38 37.8 L T05
2016-10-27 07:35:54 C 20 59 04.69 +09 38 31.0 L T05
2016-10-27 18:04:10 C 21 00 02.50 +09 35 20.4 q 160
2016-10-27 18:04:45 C 21 00 02.58 +09 35 19.6 V 160
2016-10-27 18:06:33 C 21 00 02.69 +09 35 18.9 q 160
2016-10-27 18:07:10 C 21 00 02.76 +09 35 18.6 V 160
2016-10-27 18:09:22 C 21 00 02.96 +09 35 18.0 q 160
2016-10-27 18:09:34 C 21 00 02.97 +09 35 17.5 V 160
2016-10-29 17:27:25 C 21 04 21.24 +09 21 47.2 q K74
2016-10-29 17:44:28 C 21 04 22.75 +09 21 42.2 q K74
2016-10-29 17:48:20 C 21 04 23.11 +09 21 41.6 q K74
2016-10-29 18:23:34 C 21 04 26.23 +09 21 32.7 q 160
2016-10-29 18:26:39 C 21 04 26.50 +09 21 31.9 q 160
2016-10-29 18:29:43 C 21 04 26.78 +09 21 31.2 q 160
2016-10-29 20:24:33 S 21 04 37.267 +09 21 03.60 L C51
2016-10-30 05:50:37 S 21 05 28.404 +09 18 31.97 L C51
2016-10-30 16:50:44 S 21 06 28.222 +09 15 33.62 L C51
2016-10-30 19:46:02 C 21 06 43.88 +09 14 44.7 q 160
2016-10-30 19:49:03 C 21 06 44.14 +09 14 44.0 q 160
2016-10-30 19:52:10 C 21 06 44.42 +09 14 43.2 q 160
2016-10-31 05:25:17 S 21 07 36.283 +09 12 18.58 L C51
2016-10-31 17:47:24 C 21 08 43.36 +09 09 04.3 q Z52
2016-10-31 18:32:52 C 21 08 47.34 +09 08 53.7 q 160
2016-10-31 18:35:53 C 21 08 47.59 +09 08 53.1 q 160
2016-10-31 18:39:05 C 21 08 47.87 +09 08 52.5 q 160
2016-10-31 18:40:17 C 21 08 48.05 +09 08 51.0 q Z52
2016-10-31 19:34:01 C 21 08 52.81 +09 08 37.3 q Z52
2016-10-31 20:24:51 C 21 08 57.33 +09 08 24.9 q Z52
2016-11-05 02:46:22 C 21 18 06.88 +08 45 09.8 q G96
2016-11-05 02:52:32 C 21 18 07.42 +08 45 08.8 q G96
2016-11-05 02:58:42 C 21 18 07.95 +08 45 07.3 q G96
2016-11-05 03:04:52 C 21 18 08.49 +08 45 06.1 q G96
2016-11-07 02:00:58 C 21 22 18.31 +08 35 58.7 q 703
2016-11-07 02:09:38 C 21 22 18.99 +08 35 57.2 q 703
2016-11-07 02:18:18 C 21 22 19.82 +08 35 54.6 q 703
2016-11-07 02:26:58 C 21 22 20.49 +08 35 53.5 q 703
2016-11-09 01:38:40 S 21 26 30.538 +08 27 40.97 L C51
2016-11-11 02:11:03 C 21 30 45.67 +08 20 11.5 U H21
2016-11-11 02:14:21 C 21 30 45.95 +08 20 11.2 U H21
2016-11-11 02:17:38 C 21 30 46.24 +08 20 09.3 U H21
2016-11-11 02:20:55 C 21 30 46.48 +08 20 09.2 U H21
2016-11-11 02:24:11 C 21 30 46.77 +08 20 09.3 U H21
2016-11-14 19:24:40 C 21 38 31.89 +08 08 53.0 q 160
2016-11-14 19:27:43 C 21 38 32.13 +08 08 52.7 q 160
2016-11-14 19:30:46 C 21 38 32.42 +08 08 51.1 q 160
2016-11-15 18:47:32 C 21 40 33.40 +08 06 26.0 q 160
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)