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
2025-03-17 19:03:45 C 05 28 10.740 -30 35 53.95 V M22
2025-03-17 19:12:24 C 05 28 09.862 -30 35 56.00 V M22
2025-03-17 19:26:29 C 05 28 08.424 -30 35 59.42 V M22
2025-03-19 00:35:25 C 05 25 19.901 -30 43 59.63 V W68
2025-03-19 00:40:11 C 05 25 19.404 -30 44 00.71 V W68
2025-03-19 00:48:11 C 05 25 18.583 -30 44 02.65 V W68
2025-03-19 01:02:18 C 05 25 17.138 -30 44 06.11 V W68
2025-03-19 23:56:36 C 05 23 03.37 -30 50 15.1 834
2025-03-20 00:46:24 C 05 22 58.493 -30 50 30.16 V W68
2025-03-20 01:01:09 C 05 22 56.962 -30 50 33.65 V W68
2025-03-20 01:06:36 C 05 22 56.21 -30 50 32.2 834
2025-03-20 01:16:51 C 05 22 55.354 -30 50 37.25 V W68
2025-03-23 00:52:17 C 05 15 46.812 -31 09 23.18 V W68
2025-03-23 00:56:56 C 05 15 46.310 -31 09 24.16 V W68
2025-03-23 01:11:33 C 05 15 44.743 -31 09 27.36 V W68
2025-03-23 01:19:01 C 05 15 43.942 -31 09 29.05 V W68
2025-03-24 00:05:14 C 05 13 23.669 -31 15 17.57 V W68
2025-03-24 00:09:52 C 05 13 23.172 -31 15 18.65 V W68
2025-03-24 00:10:31 C 05 13 23.081 -31 15 18.76 V W68
2025-03-24 00:14:58 C 05 13 22.608 -31 15 19.76 V W68
2025-03-24 00:17:43 C 05 13 22.298 -31 15 20.41 V W68
2025-03-24 00:23:11 C 05 13 21.682 -31 15 21.56 V W68
2025-03-24 00:31:55 C 05 13 20.736 -31 15 23.54 V W68
2025-03-24 00:38:01 C 05 13 20.069 -31 15 25.02 V W68
2025-03-24 18:09:22 C 05 11 30.142 -31 19 46.45 V M22
2025-03-24 18:14:38 C 05 11 29.561 -31 19 47.60 V M22
2025-03-24 18:22:27 C 05 11 28.699 -31 19 49.22 V M22
2025-03-24 18:37:10 C 05 11 27.060 -31 19 52.39 V M22
2025-03-25 18:20:45 C 05 08 55.282 -31 25 39.97 V M22
2025-03-25 18:25:23 C 05 08 54.758 -31 25 40.94 V M22
2025-03-25 18:32:54 C 05 08 53.892 -31 25 42.53 V M22
2025-03-25 18:47:29 C 05 08 52.248 -31 25 45.44 V M22
2025-03-28 00:37:40 C 05 02 53.760 -31 38 16.58 V W68
2025-03-28 00:42:27 C 05 02 53.184 -31 38 17.48 V W68
2025-03-28 00:50:26 C 05 02 52.229 -31 38 18.92 V W68
2025-03-28 01:05:06 C 05 02 50.486 -31 38 21.44 V W68
2025-03-28 17:53:53 C 05 00 54.300 -31 42 04.36 V M22
2025-03-28 17:58:29 C 05 00 53.741 -31 42 05.15 V M22
2025-03-28 18:07:15 C 05 00 52.663 -31 42 06.73 V M22
2025-03-28 18:21:47 C 05 00 50.885 -31 42 09.25 V M22
2025-03-29 17:41:58 C 04 58 05.198 -31 47 05.10 V M22
2025-03-29 17:47:17 C 04 58 04.529 -31 47 05.89 V M22
2025-03-29 17:55:14 C 04 58 03.526 -31 47 07.19 V M22
2025-03-29 18:11:21 C 04 58 01.502 -31 47 09.92 V M22
2025-03-30 23:46:47 C 04 54 23.722 -31 53 00.82 V W68
2025-03-30 23:52:14 C 04 54 22.997 -31 53 01.54 V W68
2025-03-31 00:00:16 C 04 54 21.943 -31 53 02.62 V W68
2025-03-31 23:45:29 C 04 51 20.450 -31 57 20.52 V W68
2025-03-31 23:50:58 C 04 51 19.709 -31 57 21.24 V W68
2025-03-31 23:59:03 C 04 51 18.612 -31 57 22.32 V W68
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)