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
2016-09-19 19:39:02 C 19 26 30.82 +17 44 01.7 q 160
2016-09-19 19:43:32 C 19 26 31.36 +17 43 58.1 q 160
2016-09-19 19:48:06 C 19 26 31.90 +17 43 54.7 q 160
2016-09-21 18:41:17 C 19 32 12.72 +17 07 29.9 q 006
2016-09-21 18:45:17 C 19 32 13.16 +17 07 27.4 q 006
2016-09-21 18:59:17 C 19 32 14.74 +17 07 17.2 q 006
2016-09-24 03:50:04 C 19 38 54.87 +16 24 47.0 q H45
2016-09-24 03:51:10 C 19 38 54.99 +16 24 46.1 q H45
2016-09-24 03:52:57 C 19 38 55.19 +16 24 44.8 q H45
2016-09-24 03:54:31 C 19 38 55.37 +16 24 43.7 q H45
2016-09-24 03:56:04 C 19 38 55.54 +16 24 42.5 q H45
2016-09-24 03:57:12 C 19 38 55.68 +16 24 41.6 q H45
2016-09-25 18:48:25 C 19 43 23.07 +15 56 39.1 q 160
2016-09-25 18:50:22 C 19 43 23.28 +15 56 37.8 q 160
2016-09-25 18:52:41 C 19 43 23.54 +15 56 36.1 q 160
2016-09-26 18:40:53 C 19 46 04.60 +15 39 51.0 V 160
2016-09-26 18:42:51 C 19 46 04.80 +15 39 49.7 V 160
2016-09-26 18:44:48 C 19 46 05.01 +15 39 48.2 V 160
2016-09-27 18:42:18 C 19 48 45.32 +15 23 16.5 V 160
2016-09-27 18:44:26 C 19 48 45.53 +15 23 14.8 V 160
2016-09-27 18:46:31 C 19 48 45.78 +15 23 13.4 V 160
2016-09-27 19:58:31 C 19 48 53.61 +15 22 23.7 c A24
2016-09-27 19:59:33 C 19 48 53.70 +15 22 23.0 c A24
2016-09-28 19:16:03 C 19 51 27.81 +15 06 39.1 c A24
2016-09-28 19:17:06 C 19 51 27.95 +15 06 38.5 c A24
2016-09-28 19:31:35 C 19 51 29.50 +15 06 28.7 c A24
2016-09-28 19:32:37 C 19 51 29.59 +15 06 28.0 c A24
2016-09-28 20:19:26 C 19 51 34.60 +15 05 56.2 c A24
2016-09-28 20:20:29 C 19 51 34.71 +15 05 55.7 c A24
2016-09-28 20:35:07 C 19 51 36.29 +15 05 45.9 c A24
2016-09-28 20:36:10 C 19 51 36.43 +15 05 45.3 c A24
2016-09-29 04:26:41 C 19 52 27.69 +15 00 33.4 q H45
2016-09-29 04:28:44 C 19 52 27.91 +15 00 32.1 q H45
2016-09-29 04:30:51 C 19 52 28.12 +15 00 30.6 q H45
2016-09-29 04:32:19 C 19 52 28.29 +15 00 29.5 q H45
2016-09-29 04:33:36 C 19 52 28.44 +15 00 28.8 q H45
2016-09-29 04:34:54 C 19 52 28.57 +15 00 27.9 q H45
2016-09-29 18:36:21 C 19 54 00.79 +14 51 11.2 V 160
2016-09-29 18:38:17 C 19 54 00.99 +14 51 10.0 V 160
2016-09-29 18:40:31 C 19 54 01.21 +14 51 08.4 V 160
2016-09-30 07:25:19 C 19 55 23.77 +14 42 54.5 L T05
2016-09-30 07:59:37 C 19 55 27.35 +14 42 32.5 L T05
2016-09-30 08:20:44 C 19 55 29.60 +14 42 18.0 L T05
2016-09-30 08:32:51 C 19 55 30.86 +14 42 10.2 L T05
2016-10-02 02:40:28 C 20 00 02.04 +14 15 19.5 q H45
2016-10-02 02:42:04 C 20 00 02.20 +14 15 18.4 q H45
2016-10-02 02:43:32 C 20 00 02.35 +14 15 17.5 q H45
2016-10-02 02:44:54 C 20 00 02.50 +14 15 16.6 q H45
2016-10-02 02:46:16 C 20 00 02.64 +14 15 15.6 q H45
2016-10-02 02:47:39 C 20 00 02.77 +14 15 14.9 q H45
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)