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
2025-11-10 09:10:49 C 22 53 12.487 +18 36 39.35 V T05
2025-11-10 09:15:23 C 22 53 12.624 +18 36 36.79 V T05
2025-11-10 09:24:26 C 22 53 12.962 +18 36 30.89 V T05
2025-11-10 09:38:35 C 22 53 13.344 +18 36 22.68 V T05
2025-11-11 07:33:20 C 22 53 57.499 +18 23 21.26 V T05
2025-11-11 07:37:56 C 22 53 57.641 +18 23 18.82 V T05
2025-11-11 07:46:00 C 22 53 57.931 +18 23 13.78 V T05
2025-11-11 08:01:10 C 22 53 58.450 +18 23 04.88 V T05
2025-11-16 06:52:58 C 22 58 18.850 +17 18 21.35 V T05
2025-11-16 06:57:32 C 22 58 18.994 +17 18 18.68 V T05
2025-11-16 07:07:29 C 22 58 19.375 +17 18 13.82 V T05
2025-11-16 07:32:17 C 22 58 20.342 +17 18 01.19 V T05
2025-11-17 08:50:18 C 22 59 20.066 +17 05 30.95 V T05
2025-11-17 09:17:32 C 22 59 21.139 +17 05 17.12 V T05
2025-11-17 09:22:12 C 22 59 21.350 +17 05 14.93 V T05
2025-11-17 09:30:11 C 22 59 21.689 +17 05 10.97 V T05
2025-11-19 20:45:29 C 23 01 48.127 +16 37 35.90 V R17
2025-11-19 21:05:50 C 23 01 48.953 +16 37 26.80 V R17
2025-11-19 21:26:14 C 23 01 49.781 +16 37 17.80 V R17
2025-11-19 21:46:35 C 23 01 50.563 +16 37 08.29 V R17
2025-11-27 20:43:13 C 23 10 30.974 +15 23 39.88 V R17
2025-11-27 21:03:37 C 23 10 31.920 +15 23 32.96 V R17
2025-11-27 21:23:58 C 23 10 32.882 +15 23 26.45 V R17
2025-11-27 21:44:22 C 23 10 33.833 +15 23 20.04 V R17
2025-12-05 06:16:06 C 23 19 30.989 +14 34 24.81 X F51
2025-12-05 06:17:44 C 23 19 31.074 +14 34 24.31 X F52
2025-12-05 06:29:52 C 23 19 31.714 +14 34 21.48 X F52
2025-12-05 06:30:44 C 23 19 31.733 +14 34 21.31 X F51
2025-12-05 06:41:58 C 23 19 32.323 +14 34 18.90 X F52
2025-12-05 06:45:12 C 23 19 32.478 +14 34 17.95 X F51
2025-12-08 11:54:45 C 23 23 41.26 +14 18 00.1 V D29
2025-12-08 12:15:07 C 23 23 42.34 +14 17 56.2 V D29
2025-12-08 12:35:29 C 23 23 43.44 +14 17 52.3 V D29
2025-12-09 06:48:38 C 23 24 43.248 +14 14 27.71 V T08
2025-12-09 06:58:31 C 23 24 43.810 +14 14 26.70 V T08
2025-12-09 07:03:07 C 23 24 44.102 +14 14 25.30 V T08
2025-12-09 07:32:49 C 23 24 45.670 +14 14 20.15 V T08
2025-12-10 03:21:57 C 23 25 51.373 +14 10 47.03 V G96
2025-12-10 03:30:03 C 23 25 51.812 +14 10 45.59 V G96
2025-12-10 03:38:10 C 23 25 52.244 +14 10 44.08 V G96
2025-12-10 03:46:16 C 23 25 52.691 +14 10 42.71 V G96
2025-12-10 06:08:15 C 23 26 00.592 +14 10 19.35 X F51
2025-12-10 06:41:22 C 23 26 02.381 +14 10 13.58 X F51
2025-12-10 06:57:52 C 23 26 03.275 +14 10 10.71 X F51
2025-12-10 11:58:02 C 23 26 20.00 +14 09 18.3 V D29
2025-12-10 12:18:24 C 23 26 21.10 +14 09 14.9 V D29
2025-12-10 12:38:45 C 23 26 22.22 +14 09 11.2 V D29
2025-12-11 06:39:21 C 23 27 22.452 +14 06 14.00 V T05
2025-12-11 06:44:39 C 23 27 22.716 +14 06 12.82 V T05
2025-12-11 06:54:34 C 23 27 23.263 +14 06 11.45 V T05
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)