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
2000-01-27 11:24:59 C 05 28 44.91 +07 20 33.1 360
2000-01-27 11:28:30 C 05 28 44.68 +07 20 32.0 360
2000-01-27 19:47:04 C 05 28 14.31 +07 17 41.4 610
2000-01-27 19:56:04 C 05 28 13.74 +07 17 38.4 610
2000-01-27 20:05:04 C 05 28 13.17 +07 17 35.3 610
2000-01-27 20:14:04 C 05 28 12.60 +07 17 32.2 610
2000-01-27 20:23:04 C 05 28 12.03 +07 17 29.1 610
2000-01-29 02:11:16 C 05 26 26.59 +07 07 54.9 m 860
2000-01-29 02:19:20 C 05 26 26.14 +07 07 52.3 m 860
2000-01-29 02:27:17 C 05 26 25.75 +07 07 50.2 m 860
2000-01-29 20:45:53 C 05 25 24.45 +07 01 52.0 d 944
2000-01-29 20:51:10 C 05 25 24.18 +07 01 50.2 d 944
2000-01-29 20:56:10 C 05 25 23.83 +07 01 49.5 d 944
2000-01-29 21:01:04 C 05 25 23.60 +07 01 48.1 d 944
2000-01-29 21:06:52 C 05 25 23.22 +07 01 45.9 d 944
2000-01-29 21:23:11 C 05 25 22.36 +07 01 41.3 d 944
2000-01-30 21:18:35 C 05 24 04.76 +06 54 20.8 17.3 c 106
2000-01-30 21:47:25 C 05 24 03.07 +06 54 11.4 17.9 c 106
2000-01-30 22:18:31 C 05 24 01.53 +06 54 02.3 17.2 c 106
2000-02-06 04:00:47 C 05 17 23.78 +06 14 40.4 17.2 c 704
2000-02-06 04:22:23 C 05 17 22.92 +06 14 35.2 17.4 c 704
2000-02-06 04:43:57 C 05 17 22.09 +06 14 30.7 17.7 c 704
2000-02-06 05:05:37 C 05 17 21.24 +06 14 25.4 17.4 c 704
2000-02-06 05:27:20 C 05 17 20.42 +06 14 20.5 17.9 c 704
2000-02-08 03:24:20 C 05 15 48.58 +06 04 20.8 17.3 c 704
2000-02-08 03:52:31 C 05 15 47.62 +06 04 15.2 17.2 c 704
2000-02-08 04:16:19 C 05 15 46.85 +06 04 09.6 17.2 c 704
2000-02-08 04:40:13 C 05 15 46.03 +06 04 04.9 17.0 c 704
2000-02-08 05:04:07 C 05 15 45.23 +06 04 00.4 17.6 c 704
2000-02-27 19:45:53 C 05 12 31.32 +05 05 45.2 118
2000-02-27 19:58:10 C 05 12 31.51 +05 05 44.8 118
2000-03-01 11:19:14 C 05 13 38.56 +05 02 26.7 360
2000-03-01 11:23:15 C 05 13 38.64 +05 02 26.4 360
2000-03-01 11:26:45 C 05 13 38.69 +05 02 26.2 360
2000-03-06 02:51:24 C 05 16 23.56 +04 58 09.9 15.7 c 704
2000-03-06 03:10:20 C 05 16 24.09 +04 58 09.6 15.5 c 704
2000-03-06 03:29:26 C 05 16 24.61 +04 58 09.2 15.8 c 704
2000-03-06 03:48:23 C 05 16 25.13 +04 58 08.1 15.5 c 704
2000-03-07 18:10:28 C 05 17 35.52 +04 57 00.1 118
2000-03-07 18:19:45 C 05 17 35.76 +04 57 00.1 118
2000-03-22 18:41:04 C 05 33 28.40 +04 51 12.5 c 118
2000-03-22 18:54:26 C 05 33 29.13 +04 51 12.8 c 118
2000-03-23 19:06:06 C 05 34 50.23 +04 50 53.3 c 118
2000-03-23 19:10:51 C 05 34 50.48 +04 50 53.6 c 118
2000-04-22 19:08:25 C 06 28 45.20 +04 22 38.6 c 118
2000-04-22 19:15:38 C 06 28 45.89 +04 22 37.9 c 118
2000-07-20 20:18:16 C 12 44 18.78 +30 18 30.0 118
2000-07-20 20:19:40 C 12 44 19.56 +30 18 32.8 118
2000-07-21 12:46:43 C 12 51 45.40 +30 56 43.3 900
2000-07-21 12:54:55 C 12 51 49.07 +30 57 01.2 900
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)