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
2025-03-04 18:55:10 C 05 58 47.059 -29 00 03.38 V M22
2025-03-04 18:59:43 C 05 58 46.546 -29 00 05.04 V M22
2025-03-04 19:11:21 C 05 58 45.259 -29 00 08.96 V M22
2025-03-04 19:37:05 C 05 58 42.420 -29 00 17.75 V M22
2025-03-05 19:28:57 C 05 56 14.014 -29 08 40.88 V M22
2025-03-05 19:34:14 C 05 56 13.442 -29 08 42.50 V M22
2025-03-05 19:42:09 C 05 56 12.581 -29 08 45.13 V M22
2025-03-05 19:57:24 C 05 56 10.915 -29 08 50.03 V M22
2025-03-07 01:26:17 C 05 53 10.618 -29 18 51.91 V W68
2025-03-07 01:29:53 C 05 53 10.296 -29 18 53.32 V W68
2025-03-07 01:33:56 C 05 53 09.854 -29 18 54.29 V W68
2025-03-07 01:47:45 C 05 53 08.316 -29 18 58.61 V W68
2025-03-08 01:20:16 C 05 50 46.428 -29 26 43.80 V W68
2025-03-08 01:25:00 C 05 50 45.924 -29 26 45.31 V W68
2025-03-08 01:34:27 C 05 50 44.914 -29 26 48.08 V W68
2025-03-08 01:50:08 C 05 50 43.272 -29 26 52.84 V W68
2025-03-09 18:54:21 C 05 46 39.612 -29 39 56.66 V M22
2025-03-09 18:59:04 C 05 46 39.118 -29 39 58.21 V M22
2025-03-09 19:07:05 C 05 46 38.275 -29 40 00.48 V M22
2025-03-09 19:21:38 C 05 46 36.766 -29 40 04.69 V M22
2025-03-09 23:47:38 C 05 46 10.51 -29 41 31.2 q Y16
2025-03-10 00:00:45 C 05 46 09.15 -29 41 34.9 q Y16
2025-03-10 00:14:31 C 05 46 07.73 -29 41 38.8 q Y16
2025-03-11 01:13:34 C 05 43 41.978 -29 49 17.08 V W68
2025-03-11 01:19:06 C 05 43 41.412 -29 49 18.52 V W68
2025-03-11 01:26:36 C 05 43 40.639 -29 49 20.71 V W68
2025-03-11 01:46:01 C 05 43 38.640 -29 49 26.04 V W68
2025-03-12 00:56:08 C 05 41 24.478 -29 56 25.69 V W68
2025-03-12 00:58:04 C 05 41 24.276 -29 56 26.23 V W68
2025-03-12 01:00:02 C 05 41 24.062 -29 56 26.77 V W68
2025-03-12 01:02:44 C 05 41 23.782 -29 56 27.46 V W68
2025-03-12 01:14:19 C 05 41 22.610 -29 56 30.73 V W68
2025-03-12 01:28:29 C 05 41 21.161 -29 56 34.66 V W68
2025-03-12 10:25:19 C 05 40 29.686 -29 59 12.98 W E52
2025-03-12 10:46:05 C 05 40 27.564 -29 59 18.71 W E52
2025-03-12 11:03:48 C 05 40 25.766 -29 59 23.53 W E52
2025-03-12 11:20:44 C 05 40 24.048 -29 59 28.00 W E52
2025-03-12 11:41:36 C 05 40 21.938 -29 59 33.54 W E52
2025-03-13 10:45:02 C 05 38 09.466 -30 06 21.53 W E52
2025-03-13 11:15:19 C 05 38 06.406 -30 06 29.56 W E52
2025-03-13 11:49:05 C 05 38 03.022 -30 06 38.30 W E52
2025-03-15 01:21:42 C 05 34 27.924 -30 17 30.84 V W68
2025-03-15 01:26:24 C 05 34 27.437 -30 17 32.06 V W68
2025-03-15 01:34:27 C 05 34 26.618 -30 17 34.12 V W68
2025-03-15 01:48:32 C 05 34 25.195 -30 17 37.68 V W68
2025-03-16 02:15:22 C 05 32 04.973 -30 24 31.68 V W68
2025-03-16 02:20:04 C 05 32 04.493 -30 24 32.90 V W68
2025-03-16 02:36:59 C 05 32 02.806 -30 24 36.83 V W68
2025-03-16 02:44:57 C 05 32 02.028 -30 24 38.81 V W68
2025-03-17 18:59:12 C 05 28 11.191 -30 35 52.87 V M22
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)