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
2000-09-10 19:42:30 C 19 11 20.96 +22 29 39.6 m 163
2000-09-10 19:45:14 C 19 11 21.27 +22 29 36.6 m 163
2000-09-10 20:08:24 C 19 11 24.22 +22 29 13.7 c 628
2000-09-10 20:24:39 C 19 11 26.28 +22 28 57.3 c 628
2000-09-10 21:05:41 C 19 11 31.51 +22 28 15.8 c 628
2000-09-10 21:19:22 C 19 11 33.28 +22 28 01.9 c 628
2000-09-11 19:22:03 C 19 14 24.20 +22 06 04.2 c 046
2000-09-11 19:25:08 C 19 14 24.55 +22 06 01.3 c 046
2000-09-11 19:26:07 C 19 14 24.69 +22 06 00.1 c 046
2000-09-11 19:27:03 C 19 14 24.81 +22 05 59.2 c 046
2000-09-11 20:51:19 C 19 14 35.41 +22 04 31.8 151
2000-09-11 20:57:33 C 19 14 36.12 +22 04 29.5 151
2000-09-11 21:02:08 C 19 14 36.73 +22 04 25.1 151
2000-09-11 21:04:12 C 19 14 36.98 +22 04 23.6 151
2000-09-19 20:26:56 C 19 37 28.95 +19 06 42.8 c 628
2000-09-19 20:37:52 C 19 37 30.09 +19 06 33.6 c 628
2000-09-19 21:02:19 C 19 37 32.80 +19 06 11.7 c 628
2000-09-19 21:15:19 C 19 37 34.23 +19 06 00.5 c 628
2000-09-29 19:28:33 C 20 02 51.57 +15 57 35.1 c 628
2000-09-29 20:08:58 C 20 02 55.55 +15 57 05.6 c 628
2000-09-29 20:49:06 C 20 02 59.47 +15 56 37.3 c 628
2000-10-22 18:57:42 C 20 54 43.48 +10 56 28.4 118
2000-10-22 19:02:34 C 20 54 43.90 +10 56 26.5 118
2000-10-31 01:51:54 C 21 12 13.69 +09 49 33.5 18.8 c 704
2000-10-31 02:11:44 C 21 12 15.41 +09 49 26.8 18.7 c 704
2000-10-31 02:31:33 C 21 12 17.11 +09 49 22.6 19.0 c 704
2000-10-31 02:51:21 C 21 12 18.80 +09 49 16.4 18.6 c 704
2000-10-31 03:12:04 C 21 12 20.53 +09 49 10.3 18.3 c 704
2000-11-01 03:23:22 C 21 14 26.63 +09 42 24.9 18.5 c 704
2000-11-01 04:07:09 C 21 14 30.40 +09 42 12.4 18.1 c 704
2000-11-01 04:29:55 C 21 14 32.27 +09 42 05.2 18.0 c 704
2000-11-01 04:51:22 C 21 14 34.12 +09 42 00.3 18.6 c 704
2000-11-02 01:37:10 C 21 16 22.56 +09 36 26.1 18.1 c 704
2000-11-02 01:59:06 C 21 16 24.37 +09 36 19.0 18.6 c 704
2000-11-02 02:21:25 C 21 16 26.26 +09 36 14.2 18.2 c 704
2000-11-02 02:43:17 C 21 16 28.15 +09 36 08.9 18.1 c 704
2000-11-26 01:29:12 C 22 05 04.35 +08 16 06.6 19.2 c 704
2000-11-26 01:57:38 C 22 05 06.59 +08 16 05.6 19.1 c 704
2000-11-26 02:29:02 C 22 05 09.21 +08 16 04.7 19.5 c 704
2000-11-26 02:54:10 C 22 05 11.26 +08 16 04.0 19.6 c 704
2000-11-26 03:18:04 C 22 05 13.23 +08 16 02.7 19.3 c 704
2001-11-23 15:06:05 C 10 17 51.80 -01 30 01.0 20.1 c 608
2001-11-23 15:21:09 C 10 17 53.20 -01 30 18.3 20.5 c 608
2001-11-23 15:36:10 C 10 17 54.59 -01 30 35.0 20.0 c 608
2001-11-24 12:22:37 C 10 19 53.21 -01 54 14.8 c 711
2001-11-24 12:30:30 C 10 19 53.93 -01 54 24.0 c 711
2001-11-24 12:38:25 C 10 19 54.68 -01 54 32.0 c 711
2001-11-25 12:37:39 C 10 22 12.94 -02 22 13.1 20.0 c 608
2001-11-25 12:54:21 C 10 22 14.49 -02 22 32.5 20.6 c 608
2001-11-25 13:09:36 C 10 22 15.94 -02 22 50.2 20.2 c 608
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)