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
2015-11-22 10:32:17 C 07 16 57.72 +20 02 47.0 q H45
2015-11-22 10:33:52 C 07 16 57.67 +20 02 46.5 q H45
2015-11-22 10:36:33 C 07 16 57.65 +20 02 45.4 q H45
2015-11-22 10:37:45 C 07 16 57.59 +20 02 45.2 q H45
2015-11-22 10:39:17 C 07 16 57.56 +20 02 44.6 q H45
2015-11-22 10:41:22 C 07 16 57.51 +20 02 43.7 q H45
2015-11-22 11:05:59 C 07 16 57.12 +20 02 35.2 R G45
2015-11-22 11:15:12 C 07 16 56.94 +20 02 31.9 R G45
2015-11-22 11:24:12 C 07 16 56.76 +20 02 28.4 R G45
2015-11-22 11:32:36 C 07 16 56.57 +20 02 25.1 R G45
2015-11-25 01:16:29 C 07 15 37.67 +19 39 14.4 q 160
2015-11-25 01:19:14 C 07 15 37.59 +19 39 13.5 q 160
2015-11-30 09:16:55 C 07 11 45.12 +18 48 55.8 R G45
2015-11-30 09:24:55 C 07 11 44.82 +18 48 52.4 R G45
2015-11-30 09:32:58 C 07 11 44.51 +18 48 48.7 R G45
2015-11-30 09:33:09 C 07 11 44.50 +18 48 49.0 R G45
2015-11-30 09:41:24 C 07 11 44.17 +18 48 45.6 R G45
2015-11-30 09:41:30 C 07 11 44.18 +18 48 45.4 R G45
2015-11-30 09:51:27 C 07 11 43.81 +18 48 41.7 R G45
2015-11-30 10:01:03 C 07 11 43.41 +18 48 37.5 R G45
2015-11-30 10:08:46 C 07 11 43.13 +18 48 34.8 R G45
2015-11-30 10:16:52 C 07 11 42.81 +18 48 31.2 R G45
2015-12-05 09:28:17 C 07 06 38.96 +17 58 32.7 q H45
2015-12-05 09:30:07 C 07 06 38.85 +17 58 31.6 q H45
2015-12-05 09:31:40 C 07 06 38.80 +17 58 31.1 q H45
2015-12-05 09:33:00 C 07 06 38.72 +17 58 30.5 q H45
2015-12-05 09:34:38 C 07 06 38.64 +17 58 30.0 q H45
2015-12-05 09:36:05 C 07 06 38.53 +17 58 28.9 q H45
2015-12-06 11:55:39 C 07 05 20.15 +17 47 04.5 L T05
2015-12-06 12:24:20 C 07 05 18.62 +17 46 51.7 L T05
2015-12-06 12:40:39 C 07 05 17.70 +17 46 44.3 L T05
2015-12-06 13:24:57 C 07 05 15.33 +17 46 24.9 L T05
2015-12-09 10:22:20 C 07 01 28.75 +17 15 35.8 q H45
2015-12-09 10:25:07 C 07 01 28.55 +17 15 34.3 q H45
2015-12-09 10:26:16 C 07 01 28.52 +17 15 33.9 q H45
2015-12-09 10:28:01 C 07 01 28.42 +17 15 33.0 q H45
2015-12-09 10:30:10 C 07 01 28.25 +17 15 31.9 q H45
2015-12-09 10:31:28 C 07 01 28.18 +17 15 31.7 q H45
2015-12-14 09:13:47 C 06 53 53.530 +16 20 03.64 L F51
2015-12-14 09:31:10 C 06 53 52.280 +16 19 55.41 L F51
2015-12-14 09:48:30 C 06 53 51.030 +16 19 47.18 L F51
2015-12-14 10:05:54 C 06 53 49.776 +16 19 38.90 L F51
2015-12-17 08:05:37 C 06 48 44.04 +15 45 25.5 R G45
2015-12-17 08:18:37 C 06 48 42.96 +15 45 18.3 R G45
2015-12-17 08:25:36 C 06 48 42.58 +15 45 15.5 R G45
2015-12-17 08:32:03 C 06 48 41.96 +15 45 12.3 R G45
2015-12-17 08:37:39 C 06 48 41.53 +15 45 09.7 R G45
2015-12-17 08:43:32 C 06 48 41.07 +15 45 06.4 R G45
2015-12-17 08:49:41 C 06 48 40.59 +15 45 03.6 R G45
2015-12-17 09:02:22 C 06 48 39.60 +15 44 57.1 R G45
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)