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
2013-11-13 02:39:28 C 04 40 45.52 +31 32 49.1 c A24
2013-11-13 02:41:33 C 04 40 45.38 +31 32 48.4 c A24
2013-11-17 07:18:46 C 04 33 21.39 +30 58 56.9 o 711
2013-11-17 07:22:26 C 04 33 21.11 +30 58 55.5 o 711
2013-11-17 07:26:13 C 04 33 20.82 +30 58 54.2 o 711
2013-11-25 17:54:58 C 04 17 16.52 +29 33 50.5 q D29
2013-11-25 18:15:01 C 04 17 14.81 +29 33 40.4 q D29
2013-11-25 18:23:36 C 04 17 14.10 +29 33 36.9 q D29
2013-11-25 18:43:38 C 04 17 12.42 +29 33 26.1 q D29
2013-11-25 18:52:14 C 04 17 11.71 +29 33 22.7 q D29
2013-11-25 21:54:31 C 04 16 57.13 +29 31 55.3 o C41
2013-11-25 21:56:01 C 04 16 57.05 +29 31 55.0 o C41
2013-11-25 21:57:35 C 04 16 56.91 +29 31 54.3 o C41
2013-11-25 23:19:39 C 04 16 50.04 +29 31 14.7 o C41
2013-11-25 23:21:14 C 04 16 49.96 +29 31 14.5 o C41
2013-11-25 23:22:41 C 04 16 49.80 +29 31 13.7 o C41
2013-11-26 09:30:32 C 04 16 00.31 +29 26 24.2 q G96
2013-11-26 09:48:21 C 04 15 58.83 +29 26 15.6 q G96
2013-11-26 10:06:06 C 04 15 57.36 +29 26 06.9 q G96
2013-11-26 10:23:49 C 04 15 55.88 +29 25 58.1 q G96
2013-12-01 12:53:02 C 04 06 00.59 +28 23 50.4 q D29
2013-12-01 13:15:57 C 04 05 58.71 +28 23 38.4 q D29
2013-12-01 13:38:52 C 04 05 56.81 +28 23 26.5 q D29
2013-12-01 22:48:07 C 04 05 12.62 +28 18 32.3 c A24
2013-12-01 23:57:40 C 04 05 06.88 +28 17 54.7 c A24
2013-12-01 23:58:43 C 04 05 06.81 +28 17 54.2 c A24
2013-12-03 05:23:29 C 04 02 46.62 +28 02 02.2 q 703
2013-12-03 05:27:50 C 04 02 46.28 +28 02 00.2 q 703
2013-12-03 05:33:31 C 04 02 45.79 +28 01 56.6 q 703
2013-12-03 05:37:52 C 04 02 45.42 +28 01 54.1 q 703
2013-12-03 07:08:12 C 04 02 38.499 +28 01 05.91 L F51
2013-12-03 07:28:32 C 04 02 36.849 +28 00 54.98 L F51
2013-12-03 07:48:54 C 04 02 35.196 +28 00 44.04 L F51
2013-12-03 08:09:19 C 04 02 33.534 +28 00 33.01 L F51
2013-12-03 22:14:00 C 04 01 26.73 +27 52 47.0 i C91
2013-12-03 22:27:00 C 04 01 25.65 +27 52 39.5 i C91
2013-12-03 22:36:59 C 04 01 24.84 +27 52 35.2 i C91
2013-12-04 23:06:00 C 03 59 29.89 +27 39 00.7 c A24
2013-12-04 23:07:02 C 03 59 29.82 +27 39 00.1 c A24
2013-12-05 23:07:21 C 03 57 38.56 +27 25 34.4 u J27
2013-12-05 23:14:31 C 03 57 37.99 +27 25 30.3 u J27
2013-12-05 23:33:19 C 03 57 36.52 +27 25 19.6 u J27
2013-12-06 19:53:34 C 03 56 03.73 +27 13 49.3 w I99
2013-12-06 20:02:11 C 03 56 03.13 +27 13 44.5 w I99
2013-12-06 20:10:52 C 03 56 02.41 +27 13 39.3 w I99
2013-12-07 20:28:31 C 03 54 12.52 +26 59 49.3 c A24
2013-12-07 20:29:35 C 03 54 12.48 +26 59 48.1 c A24
2013-12-07 21:29:57 C 03 54 07.80 +26 59 13.7 c A24
2013-12-07 21:30:59 C 03 54 07.76 +26 59 13.3 c A24
2013-12-07 23:22:43 C 03 53 59.23 +26 58 09.4 c A24
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)