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
2025-06-01 14:11:10 C 00 37 20.381 +12 13 54.70 X F51
2025-06-01 14:16:43 C 00 37 20.246 +12 14 06.22 X F51
2025-06-01 14:22:17 C 00 37 20.104 +12 14 17.65 X F51
2025-06-03 14:14:36 C 00 36 28.454 +13 49 56.28 V T05
2025-06-03 14:20:32 C 00 36 28.380 +13 50 07.91 V T05
2025-06-03 14:27:57 C 00 36 28.243 +13 50 22.34 V T05
2025-06-03 14:45:10 C 00 36 27.905 +13 50 56.76 V T05
2025-06-05 09:06:50 C 00 35 58.603 +15 12 14.15 V W68
2025-06-05 09:19:55 C 00 35 58.454 +15 12 38.99 V W68
2025-06-05 09:28:29 C 00 35 58.361 +15 12 55.15 V W68
2025-06-05 14:12:05 C 00 35 56.285 +15 21 26.93 V T08
2025-06-05 14:18:09 C 00 35 56.230 +15 21 37.91 V T08
2025-06-05 14:32:22 C 00 35 56.045 +15 22 05.12 V T08
2025-06-05 14:44:35 C 00 35 55.898 +15 22 28.34 V T08
2025-06-07 14:01:41 C 00 35 41.218 +16 48 41.29 V T05
2025-06-07 14:09:41 C 00 35 41.165 +16 48 55.73 V T05
2025-06-07 14:33:10 C 00 35 41.030 +16 49 38.03 V T05
2025-06-07 14:44:23 C 00 35 40.951 +16 49 58.26 V T05
2025-06-08 14:10:54 C 00 35 39.266 +17 31 19.70 V T05
2025-06-08 14:16:57 C 00 35 39.240 +17 31 30.36 V T05
2025-06-08 14:28:15 C 00 35 39.204 +17 31 50.38 V T05
2025-06-09 14:23:14 C 00 35 40.774 +18 13 09.34 V T08
2025-06-09 14:31:28 C 00 35 40.750 +18 13 23.56 V T08
2025-06-09 14:40:52 C 00 35 40.726 +18 13 40.04 V T08
2025-06-10 10:14:49 C 00 35 44.516 +18 46 42.92 V 703
2025-06-10 10:18:09 C 00 35 44.509 +18 46 48.50 V 703
2025-06-10 10:21:29 C 00 35 44.545 +18 46 53.76 V 703
2025-06-10 10:24:48 C 00 35 44.531 +18 46 59.63 V 703
2025-06-10 10:28:08 C 00 35 44.542 +18 47 06.07 V 703
2025-06-10 10:31:27 C 00 35 44.549 +18 47 10.97 V 703
2025-06-10 10:34:47 C 00 35 44.596 +18 47 16.48 V 703
2025-06-10 10:38:07 C 00 35 44.585 +18 47 22.74 V 703
2025-06-11 14:10:04 C 00 35 53.059 +19 33 08.35 V T05
2025-06-11 14:13:21 C 00 35 53.033 +19 33 13.50 V T05
2025-06-11 14:16:04 C 00 35 53.083 +19 33 18.00 V T05
2025-06-11 14:24:40 C 00 35 53.009 +19 33 31.72 V T05
2025-06-11 14:50:19 C 00 35 53.170 +19 34 15.28 V T05
2025-06-12 13:49:21 C 00 36 03.185 +20 11 32.50 V T05
2025-06-12 13:53:26 C 00 36 03.211 +20 11 39.12 V T05
2025-06-12 14:18:40 C 00 36 03.326 +20 12 20.02 V T05
2025-06-12 14:33:32 C 00 36 03.367 +20 12 44.32 V T05
2025-06-13 14:04:46 C 00 36 15.898 +20 50 09.92 V T08
2025-06-13 14:12:06 C 00 36 15.950 +20 50 21.62 V T08
2025-06-13 14:40:20 C 00 36 16.116 +20 51 06.52 V T08
2025-06-13 14:50:24 C 00 36 16.164 +20 51 22.46 V T08
2025-06-14 14:08:17 C 00 36 30.799 +21 27 42.59 V T08
2025-06-14 14:26:24 C 00 36 30.917 +21 28 10.99 V T08
2025-06-14 14:42:37 C 00 36 31.032 +21 28 36.44 V T08
2025-06-14 14:48:01 C 00 36 31.066 +21 28 44.76 V T08
2025-06-15 13:54:12 C 00 36 47.510 +22 04 04.55 V T05
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)