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
2000-08-19 20:30:07 C 17 38 22.19 +32 22 56.8 d 557
2000-08-19 20:34:09 C 17 38 23.16 +32 22 56.1 157
2000-08-19 20:42:50 C 17 38 25.25 +32 22 45.7 157
2000-08-19 21:55:16 C 17 38 42.91 +32 21 16.7 d 557
2000-08-19 22:31:35 C 17 38 51.75 +32 20 33.7 d 557
2000-08-19 22:55:36 C 17 38 57.62 +32 20 05.0 d 557
2000-08-20 05:02:36 C 17 40 27.89 +32 13 05.3 z 762
2000-08-20 05:09:25 C 17 40 29.52 +32 12 57.3 z 762
2000-08-20 05:13:03 C 17 40 30.39 +32 12 52.7 z 762
2000-08-20 19:21:17 C 17 43 56.61 +31 56 31.7 d 557
2000-08-20 21:26:23 C 17 44 25.81 +31 54 04.3 d 557
2000-08-20 22:05:00 C 17 44 34.83 +31 53 18.5 d 557
2000-08-20 22:56:55 C 17 44 47.03 +31 52 16.2 d 557
2000-08-22 19:57:05 C 17 55 07.49 +30 59 38.5 d 557
2000-08-22 20:00:37 C 17 55 08.35 +30 59 35.1 z 151
2000-08-22 20:02:51 C 17 55 08.82 +30 59 32.4 z 151
2000-08-22 20:05:21 C 17 55 09.37 +30 59 29.5 z 151
2000-08-22 20:15:44 C 17 55 11.60 +30 59 17.1 z 151
2000-08-22 20:39:02 C 17 55 16.57 +30 58 48.2 d 557
2000-08-22 21:41:35 C 17 55 30.11 +30 57 33.3 d 557
2000-08-22 22:40:41 C 17 55 42.95 +30 56 22.0 d 557
2000-08-22 23:22:11 C 17 55 52.01 +30 55 31.8 d 557
2000-08-23 00:03:14 C 17 56 00.96 +30 54 42.1 d 557
2000-08-23 20:02:05 C 18 00 21.97 +30 31 16.9 15.4 c 172
2000-08-23 20:04:24 C 18 00 22.43 +30 31 14.2 14.8 c 172
2000-08-23 20:13:37 C 18 00 24.26 +30 31 02.1 c 639
2000-08-23 20:26:38 C 18 00 27.00 +30 30 47.9 c 639
2000-08-23 20:40:27 C 18 00 29.85 +30 30 32.6 c 639
2000-08-23 21:35:04 C 18 00 41.28 +30 29 25.9 15.4 c 172
2000-08-23 21:40:50 C 18 00 42.45 +30 29 19.2 15.5 c 172
2000-08-23 22:39:25 C 18 00 54.73 +30 28 07.8 15.5 c 172
2000-08-24 02:22:50 C 18 01 43.03 +30 23 46.9 i 726
2000-08-24 02:30:14 C 18 01 44.57 +30 23 37.9 i 726
2000-08-24 02:35:13 C 18 01 45.57 +30 23 32.2 i 726
2000-08-24 02:40:13 C 18 01 46.61 +30 23 26.3 i 726
2000-08-24 02:47:30 C 18 01 48.12 +30 23 17.8 i 726
2000-08-25 03:37:53 C 18 06 57.03 +29 53 58.2 z 762
2000-08-25 03:50:37 C 18 06 59.58 +29 53 42.9 z 762
2000-08-25 04:01:58 C 18 07 01.84 +29 53 29.3 z 762
2000-08-25 04:08:14 C 18 07 03.09 +29 53 21.6 z 762
2000-08-25 19:47:48 C 18 10 12.85 +29 34 53.6 118
2000-08-25 19:53:43 C 18 10 14.00 +29 34 46.6 118
2000-08-25 22:06:46 C 18 10 40.04 +29 32 07.5 m 163
2000-08-25 22:08:11 C 18 10 40.31 +29 32 05.8 m 163
2000-08-26 20:13:48 C 18 14 59.76 +29 06 07.0 118
2000-08-26 20:19:13 C 18 15 00.76 +29 06 00.7 118
2000-08-26 21:13:58 C 18 15 11.16 +29 04 53.1 544
2000-08-26 21:17:45 C 18 15 11.81 +29 04 49.0 544
2000-08-26 21:28:53 C 18 15 13.80 +29 04 36.8 544
2000-08-26 21:33:06 C 18 15 14.78 +29 04 30.4 544
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)