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
2013-12-07 23:23:45 C 03 53 59.20 +26 58 09.1 c A24
2013-12-08 00:36:37 C 03 53 53.52 +26 57 25.8 c A24
2013-12-08 00:37:39 C 03 53 53.48 +26 57 26.9 c A24
2013-12-09 15:38:13 C 03 51 01.66 +26 35 01.0 q D29
2013-12-09 16:04:00 C 03 50 59.77 +26 34 46.2 q D29
2013-12-09 16:29:46 C 03 50 57.82 +26 34 31.4 q D29
2013-12-10 20:11:53 C 03 48 59.29 +26 18 27.0 c A24
2013-12-10 20:12:55 C 03 48 59.23 +26 18 27.1 c A24
2013-12-10 21:13:02 C 03 48 54.83 +26 17 52.8 c A24
2013-12-10 21:14:04 C 03 48 54.81 +26 17 52.1 c A24
2013-12-11 21:38:30 C 03 47 12.34 +26 03 40.1 c A24
2013-12-11 21:39:33 C 03 47 12.21 +26 03 40.3 c A24
2013-12-11 22:38:59 C 03 47 08.00 +26 03 05.4 c A24
2013-12-11 22:40:01 C 03 47 07.97 +26 03 04.8 c A24
2013-12-12 02:37:49 C 03 46 51.83 +26 00 46.7 u H21
2013-12-12 02:40:53 C 03 46 51.62 +26 00 45.4 u H21
2013-12-12 02:44:17 C 03 46 51.39 +26 00 43.5 u H21
2013-12-12 02:47:51 C 03 46 51.13 +26 00 41.6 u H21
2013-12-12 02:50:37 C 03 46 50.95 +26 00 39.9 u H21
2013-12-12 02:53:33 C 03 46 50.71 +26 00 38.0 u H21
2013-12-12 05:37:57 C 03 46 39.27 +25 59 03.7 q 703
2013-12-12 05:45:06 C 03 46 38.79 +25 58 59.5 q 703
2013-12-12 05:48:49 C 03 46 38.56 +25 58 57.3 q 703
2013-12-12 06:17:44 C 03 46 36.51 +25 58 40.5 q 703
2013-12-19 02:58:29 C 03 36 15.70 +24 23 26.5 u H21
2013-12-19 03:02:58 C 03 36 15.44 +24 23 23.7 u H21
2013-12-19 03:07:37 C 03 36 15.18 +24 23 21.0 u H21
2013-12-19 03:11:36 C 03 36 14.96 +24 23 18.7 u H21
2013-12-19 03:16:56 C 03 36 14.63 +24 23 15.9 u H21
2013-12-19 03:52:41 C 03 36 12.54 +24 22 55.4 u H21
2013-12-19 04:00:39 C 03 36 12.07 +24 22 51.0 u H21
2013-12-19 04:04:30 C 03 36 11.83 +24 22 48.8 u H21
2013-12-19 04:08:14 C 03 36 11.63 +24 22 47.1 u H21
2013-12-21 14:34:30 C 03 33 01.44 +23 49 53.8 q D29
2013-12-21 15:04:10 C 03 32 59.92 +23 49 38.3 q D29
2013-12-23 20:42:46 C 03 30 20.53 +23 20 08.2 18.6 u J43
2013-12-23 20:57:30 C 03 30 19.81 +23 20 00.2 18.5 u J43
2013-12-23 21:12:17 C 03 30 19.08 +23 19 52.3 18.6 u J43
2013-12-23 21:27:04 C 03 30 18.36 +23 19 44.3 18.6 u J43
2013-12-24 20:31:43 C 03 29 14.37 +23 07 17.8 18.6 u J43
2013-12-24 20:46:24 C 03 29 13.65 +23 07 09.9 18.5 u J43
2013-12-24 21:01:08 C 03 29 12.95 +23 07 02.0 18.6 u J43
2013-12-24 21:15:56 C 03 29 12.25 +23 06 54.2 18.7 u J43
2013-12-26 06:39:52 C 03 27 44.05 +22 49 12.5 q 703
2013-12-26 06:49:20 C 03 27 43.59 +22 49 07.9 q 703
2013-12-26 06:58:45 C 03 27 43.25 +22 49 02.4 q 703
2013-12-26 07:08:13 C 03 27 42.84 +22 48 57.6 q 703
2013-12-29 20:09:31 C 03 24 25.77 +22 05 36.5 c A24
2013-12-29 21:36:38 C 03 24 22.52 +22 04 55.1 c A24
2013-12-29 21:37:40 C 03 24 22.51 +22 04 54.8 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)