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
2025-01-23 22:43:17 C 07 58 44.124 -15 45 07.31 V M22
2025-01-24 22:53:43 C 07 55 58.421 -16 16 45.59 V M22
2025-01-24 22:58:20 C 07 55 57.862 -16 16 51.60 V M22
2025-01-24 23:49:01 C 07 55 51.763 -16 17 57.41 V M22
2025-01-24 23:58:07 C 07 55 50.674 -16 18 09.11 V M22
2025-01-26 04:20:44 C 07 52 31.668 -16 54 53.89 V W68
2025-01-26 04:25:22 C 07 52 31.097 -16 54 59.83 V W68
2025-01-26 04:34:09 C 07 52 30.012 -16 55 11.06 V W68
2025-01-27 04:24:38 C 07 49 38.623 -17 25 39.54 V W68
2025-01-27 04:29:15 C 07 49 38.042 -17 25 45.37 V W68
2025-01-27 05:14:47 C 07 49 32.306 -17 26 43.01 V W68
2025-01-30 00:26:51 C 07 41 13.05 -18 50 17.9 834
2025-01-30 01:16:09 C 07 41 06.58 -18 51 18.5 834
2025-01-30 04:02:16 C 07 40 44.962 -18 54 41.47 V W68
2025-01-30 04:06:49 C 07 40 44.362 -18 54 46.98 V W68
2025-01-30 04:29:28 C 07 40 41.357 -18 55 14.41 V W68
2025-01-30 21:49:07 C 07 38 28.313 -19 16 26.29 W M01
2025-01-30 21:51:37 C 07 38 27.996 -19 16 29.33 W M01
2025-01-30 21:54:07 C 07 38 27.679 -19 16 32.37 W M01
2025-01-31 04:13:25 C 07 37 39.079 -19 23 46.07 V W68
2025-01-31 04:17:26 C 07 37 38.537 -19 23 50.86 V W68
2025-01-31 04:34:33 C 07 37 36.235 -19 24 11.16 V W68
2025-01-31 21:49:25 B 07 35 22.86 -19 44 56.0 V Y83
2025-01-31 21:58:40 B 07 35 21.61 -19 45 06.9 V Y83
2025-01-31 22:07:50 B 07 35 20.38 -19 45 17.6 V Y83
2025-01-31 22:07:53 C 07 35 19.937 -19 44 55.54 V M22
2025-01-31 22:47:42 C 07 35 14.551 -19 45 41.87 V M22
2025-01-31 22:52:18 C 07 35 13.930 -19 45 47.27 V M22
2025-01-31 23:00:48 C 07 35 12.785 -19 45 57.13 V M22
2025-02-01 22:30:02 C 07 32 08.575 -20 13 12.58 V M22
2025-02-01 22:34:42 C 07 32 07.937 -20 13 17.98 V M22
2025-02-01 23:25:32 C 07 32 01.003 -20 14 15.83 V M22
2025-02-03 03:48:59 C 07 28 16.205 -20 46 25.28 V W68
2025-02-03 03:53:34 C 07 28 15.571 -20 46 30.36 V W68
2025-02-03 04:03:22 C 07 28 14.215 -20 46 41.20 V W68
2025-02-03 04:17:57 C 07 28 12.194 -20 46 57.43 V W68
2025-02-04 03:40:42 C 07 25 05.186 -21 12 44.24 V W68
2025-02-04 03:44:41 C 07 25 04.625 -21 12 48.64 V W68
2025-02-04 04:07:53 C 07 25 01.394 -21 13 13.69 V W68
2025-02-04 04:15:46 C 07 25 00.295 -21 13 22.22 V W68
2025-02-04 21:33:13 C 07 22 41.215 -21 32 00.60 V M22
2025-02-04 21:41:46 C 07 22 40.020 -21 32 09.64 V M22
2025-02-04 21:56:43 C 07 22 37.927 -21 32 25.44 V M22
2025-02-08 03:39:48 C 07 12 06.530 -22 51 45.86 V W68
2025-02-08 03:44:25 C 07 12 05.873 -22 51 50.26 V W68
2025-02-08 03:51:49 C 07 12 04.824 -22 51 57.35 V W68
2025-02-08 04:08:01 C 07 12 02.534 -22 52 12.97 V W68
2025-02-08 21:09:03 C 07 09 43.932 -23 08 33.65 V M22
2025-02-08 21:13:38 C 07 09 43.286 -23 08 38.08 V M22
2025-02-08 21:21:27 C 07 09 42.170 -23 08 45.38 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)