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
2016-04-15 19:04:47 C 06 13 19.34 +05 06 39.9 q 160
2016-04-15 19:06:43 C 06 13 19.51 +05 06 39.9 q 160
2016-04-15 19:08:42 C 06 13 19.71 +05 06 40.0 q 160
2016-04-19 19:37:01 C 06 21 44.38 +05 00 32.4 q 160
2016-04-19 19:38:59 C 06 21 44.54 +05 00 32.5 q 160
2016-04-19 19:40:54 C 06 21 44.66 +05 00 32.6 q 160
2016-04-20 23:12:34 C 06 24 13.24 +04 58 48.1 u 807
2016-04-20 23:16:43 C 06 24 13.62 +04 58 47.5 u 807
2016-04-20 23:20:55 C 06 24 13.98 +04 58 47.4 u 807
2016-04-20 23:25:03 C 06 24 14.35 +04 58 46.9 u 807
2016-04-20 23:29:12 C 06 24 14.72 +04 58 46.9 u 807
2016-04-20 23:32:58 C 06 24 15.05 +04 58 46.4 u 807
2016-05-26 17:23:11 C 07 57 07.56 +03 46 23.6 o K95
2016-05-26 17:28:21 C 07 57 08.17 +03 46 23.8 o K95
2016-07-23 03:13:29 C 12 56 55.85 +25 59 25.6 q W19
2016-07-23 03:19:48 C 12 56 58.54 +25 59 37.2 q W19
2016-07-23 03:26:02 C 12 57 01.07 +25 59 48.6 q W19
2016-07-23 03:32:21 C 12 57 03.68 +26 00 00.2 q W19
2016-07-23 03:38:41 C 12 57 06.32 +26 00 11.7 q W19
2016-08-03 02:24:30 C 14 52 29.91 +31 29 40.7 q H45
2016-08-03 02:25:40 C 14 52 30.41 +31 29 41.3 q H45
2016-08-03 02:26:45 C 14 52 30.86 +31 29 41.9 q H45
2016-08-03 02:27:47 C 14 52 31.30 +31 29 42.4 q H45
2016-08-03 02:28:45 C 14 52 31.71 +31 29 42.9 q H45
2016-08-03 02:29:55 C 14 52 32.21 +31 29 43.3 q H45
2016-08-03 21:47:57 C 15 00 51.96 +31 38 33.7 o Z22
2016-08-03 21:59:22 C 15 00 56.78 +31 38 38.0 o Z22
2016-08-03 22:14:38 C 15 01 03.22 +31 38 43.2 o Z22
2016-08-06 06:58:30 C 15 24 53.67 +31 52 31.9 L T05
2016-08-06 07:32:54 C 15 25 07.48 +31 52 33.5 L T05
2016-08-06 07:50:11 C 15 25 14.45 +31 52 34.2 L T05
2016-08-06 08:08:00 C 15 25 21.62 +31 52 34.7 L T05
2016-08-06 20:19:17 C 15 30 20.38 +31 53 04.7 q 160
2016-08-06 20:21:10 C 15 30 21.14 +31 53 04.5 q 160
2016-08-06 20:22:50 C 15 30 21.80 +31 53 04.4 q 160
2016-08-06 22:58:48 C 15 31 24.32 +31 53 03.2 w J52
2016-08-06 23:01:08 C 15 31 25.25 +31 53 03.0 w J52
2016-08-06 23:03:28 C 15 31 26.23 +31 53 02.3 w J52
2016-08-09 02:38:44 C 15 51 45.26 +31 47 29.7 q W19
2016-08-09 02:45:54 C 15 51 47.97 +31 47 28.1 q W19
2016-08-09 02:52:16 C 15 51 50.34 +31 47 26.2 q W19
2016-08-09 02:58:42 C 15 51 52.79 +31 47 24.7 q W19
2016-08-09 03:05:05 C 15 51 55.18 +31 47 23.0 q W19
2016-08-09 03:11:54 C 15 51 57.77 +31 47 21.5 q W19
2016-08-10 07:03:15 C 16 02 26.65 +31 39 43.7 L T05
2016-08-10 07:20:17 C 16 02 32.80 +31 39 37.3 L T05
2016-08-10 07:35:30 C 16 02 38.29 +31 39 31.7 L T05
2016-08-10 07:52:20 C 16 02 44.37 +31 39 25.2 L T05
2016-08-11 21:02:51 C 16 16 09.98 +31 24 07.1 V 160
2016-08-11 21:04:45 C 16 16 10.62 +31 24 06.4 V 160
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)