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
2014-01-20 02:36:56 C 03 17 21.40 +18 50 14.0 q 703
2014-01-20 02:47:55 C 03 17 21.51 +18 50 11.3 q 703
2014-01-20 02:58:54 C 03 17 21.49 +18 50 08.2 q 703
2014-01-22 12:22:24 C 03 17 47.72 +18 35 21.3 q D29
2014-01-22 12:45:19 C 03 17 47.94 +18 35 15.2 q D29
2014-01-22 13:08:12 C 03 17 48.11 +18 35 09.7 q D29
2014-01-23 04:52:31 C 03 17 57.65 +18 31 21.0 q G96
2014-01-23 05:01:14 C 03 17 57.72 +18 31 18.8 q G96
2014-01-23 05:09:58 C 03 17 57.81 +18 31 16.7 q G96
2014-01-23 05:18:41 C 03 17 57.89 +18 31 14.6 q G96
2014-01-27 11:10:02 C 03 19 23.45 +18 08 58.3 q D29
2014-01-27 11:40:55 C 03 19 23.92 +18 08 52.8 q D29
2014-01-27 12:11:48 C 03 19 24.39 +18 08 46.2 q D29
2014-01-29 02:18:41 C 03 20 06.54 +18 01 28.6 q G96
2014-01-29 02:26:00 C 03 20 06.68 +18 01 27.2 q G96
2014-01-29 02:33:19 C 03 20 06.81 +18 01 25.8 q G96
2014-01-29 02:43:04 C 03 20 06.99 +18 01 24.1 q G96
2014-02-10 03:33:36 C 03 28 06.07 +17 22 02.2 q 703
2014-02-10 03:44:15 C 03 28 06.55 +17 21 59.7 q 703
2014-02-10 03:54:55 C 03 28 06.78 +17 21 59.4 q 703
2014-02-10 04:05:34 C 03 28 07.22 +17 21 58.6 q 703
2014-03-12 03:03:35 C 04 04 07.312 +17 03 49.06 L 695
2014-03-12 03:06:48 C 04 04 07.512 +17 03 49.12 L 695
2014-03-12 03:10:35 C 04 04 07.743 +17 03 49.11 L 695
2014-03-12 03:14:36 C 04 04 07.986 +17 03 49.13 L 695
2014-03-12 03:19:41 C 04 04 08.315 +17 03 49.26 L 695
2014-03-12 03:23:36 C 04 04 08.559 +17 03 49.26 L 695
2014-03-12 03:27:48 C 04 04 08.812 +17 03 49.34 L 695
2014-03-12 03:31:01 C 04 04 09.015 +17 03 49.38 L 695
2015-10-11 11:00:32 C 06 59 51.61 +25 00 43.7 R G45
2015-10-11 11:07:57 C 06 59 51.90 +25 00 42.6 R G45
2015-10-11 11:25:19 C 06 59 52.64 +25 00 38.3 R G45
2015-10-11 11:41:26 C 06 59 53.31 +25 00 34.7 R G45
2015-10-11 11:58:21 C 06 59 54.02 +25 00 30.7 R G45
2015-10-12 11:19:45 C 07 00 54.50 +24 55 04.1 R G45
2015-10-12 11:28:06 C 07 00 54.85 +24 55 02.7 R G45
2015-10-12 11:35:49 C 07 00 55.15 +24 55 00.8 R G45
2015-10-12 11:44:21 C 07 00 55.51 +24 54 58.7 R G45
2015-10-12 11:52:28 C 07 00 55.83 +24 54 57.0 R G45
2015-10-12 12:00:59 C 07 00 56.20 +24 54 54.7 R G45
2015-10-12 12:11:13 C 07 00 56.62 +24 54 52.6 R G45
2015-10-13 10:56:52 C 07 01 54.29 +24 49 30.2 R G45
2015-10-13 11:07:52 C 07 01 54.78 +24 49 28.0 R G45
2015-10-13 11:15:35 C 07 01 55.06 +24 49 25.9 R G45
2015-10-13 11:23:55 C 07 01 55.40 +24 49 24.2 R G45
2015-10-13 11:35:05 C 07 01 55.84 +24 49 21.4 R G45
2015-10-13 11:42:50 C 07 01 56.17 +24 49 19.7 R G45
2015-10-13 11:51:25 C 07 01 56.50 +24 49 16.8 R G45
2015-10-14 10:59:54 C 07 02 53.82 +24 43 46.4 R G45
2015-10-14 11:27:17 C 07 02 54.89 +24 43 39.4 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)