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
2000-07-22 08:42:23 C 13 00 57.42 +31 41 56.2 413
2000-07-22 08:43:54 C 13 00 58.12 +31 41 59.4 413
2000-07-22 08:46:19 C 13 00 59.21 +31 42 04.6 413
2000-07-22 08:47:53 C 13 00 59.93 +31 42 07.7 413
2000-07-23 08:54:22 C 13 12 19.70 +32 33 06.8 413
2000-07-23 08:58:09 C 13 12 21.46 +32 33 14.2 413
2000-07-25 20:46:45 C 13 41 16.46 +34 23 11.0 118
2000-07-25 20:49:54 C 13 41 18.00 +34 23 16.0 118
2000-07-29 12:54:06 C 14 24 51.10 +36 18 21.0 m 347
2000-07-29 12:58:58 C 14 24 53.49 +36 18 25.8 m 347
2000-07-29 13:02:09 C 14 24 55.04 +36 18 28.0 m 347
2000-07-29 22:27:00 C 14 29 33.54 +36 26 58.8 587
2000-07-29 22:30:00 C 14 29 35.00 +36 27 01.1 587
2000-07-30 03:14:40 C 14 31 55.42 +36 31 17.8 i 739
2000-07-30 03:16:41 C 14 31 56.34 +36 31 19.1 i 739
2000-07-30 03:18:16 C 14 31 57.21 +36 31 20.4 i 739
2000-07-30 03:20:13 C 14 31 58.06 +36 31 22.1 i 739
2000-07-30 21:04:51 C 14 40 39.20 +36 44 54.0 z 151
2000-07-30 21:06:44 C 14 40 40.08 +36 44 55.0 z 151
2000-07-30 21:11:46 C 14 40 42.56 +36 44 58.2 z 151
2000-07-30 21:13:00 C 14 40 43.18 +36 44 59.4 z 151
2000-07-30 22:01:10 C 14 41 06.58 +36 45 29.0 c 621
2000-07-30 22:02:38 C 14 41 07.29 +36 45 30.0 c 621
2000-07-30 22:04:05 C 14 41 08.02 +36 45 30.7 c 621
2000-07-30 22:22:15 C 14 41 16.80 +36 45 42.5 c 621
2000-07-30 22:23:43 C 14 41 17.49 +36 45 43.3 c 621
2000-07-30 22:25:11 C 14 41 18.20 +36 45 44.4 c 621
2000-07-31 21:22:31 C 14 52 25.24 +36 59 32.2 c 621
2000-07-31 21:24:00 C 14 52 25.99 +36 59 32.7 c 621
2000-07-31 21:25:28 C 14 52 26.65 +36 59 33.6 c 621
2000-07-31 22:30:52 C 14 52 57.82 +37 00 03.1 c 621
2000-07-31 22:32:20 C 14 52 58.54 +37 00 03.9 c 621
2000-07-31 22:33:48 C 14 52 59.24 +37 00 04.7 c 621
2000-08-01 03:13:02 C 14 55 13.48 +37 02 32.2 i 739
2000-08-01 03:15:00 C 14 55 14.42 +37 02 33.0 i 739
2000-08-01 03:17:24 C 14 55 15.55 +37 02 34.0 i 739
2000-08-01 05:29:11 C 14 56 18.74 +37 03 29.0 642
2000-08-01 05:35:17 C 14 56 21.56 +37 03 30.6 642
2000-08-01 05:37:25 C 14 56 22.59 +37 03 31.9 642
2000-08-01 05:42:43 C 14 56 25.12 +37 03 33.8 642
2000-08-01 05:44:57 C 14 56 26.16 +37 03 34.1 642
2000-08-01 20:17:19 C 15 03 21.07 +37 09 16.9 c 639
2000-08-01 20:40:39 C 15 03 31.96 +37 09 24.1 c 639
2000-08-01 20:57:41 C 15 03 39.92 +37 09 28.5 c 639
2000-08-01 21:00:05 C 15 03 41.10 +37 09 31.4 z 151
2000-08-01 21:03:04 C 15 03 42.50 +37 09 32.3 z 151
2000-08-01 21:04:14 C 15 03 42.91 +37 09 30.6 c 639
2000-08-01 21:05:44 C 15 03 43.73 +37 09 33.3 z 151
2000-08-01 21:09:25 C 15 03 45.41 +37 09 32.1 c 639
2000-08-01 21:09:31 C 15 03 45.51 +37 09 34.4 z 151
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)