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
2016-09-02 19:42:55 C 18 27 37.66 +23 47 23.6 q 006
2016-09-02 19:47:25 C 18 27 38.41 +23 47 19.7 q 006
2016-09-02 19:53:25 C 18 27 39.44 +23 47 13.8 q 006
2016-09-02 19:56:25 C 18 27 39.91 +23 47 11.0 q 006
2016-09-02 19:59:26 C 18 27 40.45 +23 47 07.0 q 006
2016-09-04 12:03:06 C 18 34 28.58 +23 08 25.5 q D29
2016-09-04 12:24:45 C 18 34 32.06 +23 08 04.5 q D29
2016-09-06 07:35:25 C 18 41 32.77 +22 26 55.5 L T05
2016-09-06 07:57:00 C 18 41 36.08 +22 26 34.8 L T05
2016-09-06 08:13:10 C 18 41 38.59 +22 26 19.3 L T05
2016-09-06 08:27:36 C 18 41 40.79 +22 26 05.5 L T05
2016-09-06 18:34:57 C 18 43 17.40 +22 16 21.4 u B42
2016-09-06 18:37:03 C 18 43 17.70 +22 16 19.4 u B42
2016-09-06 18:39:10 C 18 43 18.05 +22 16 17.8 u B42
2016-09-06 18:41:16 C 18 43 18.37 +22 16 15.4 u B42
2016-09-06 18:43:22 C 18 43 18.68 +22 16 13.6 u B42
2016-09-07 21:31:01 C 18 47 28.12 +21 51 07.3 q Z80
2016-09-07 21:34:09 C 18 47 28.58 +21 51 04.8 q Z80
2016-09-07 21:37:16 C 18 47 29.09 +21 51 01.1 q Z80
2016-09-07 21:40:55 C 18 47 29.58 +21 50 58.7 q Z80
2016-09-07 21:45:05 C 18 47 30.24 +21 50 54.2 q Z80
2016-09-08 21:48:06 C 18 51 08.80 +21 28 35.9 q G34
2016-09-08 21:52:20 C 18 51 09.43 +21 28 32.3 q G34
2016-09-08 21:56:34 C 18 51 10.02 +21 28 28.5 q G34
2016-09-08 22:09:16 C 18 51 11.88 +21 28 16.5 q G34
2016-09-09 18:50:07 C 18 54 16.94 +21 09 22.1 q 006
2016-09-09 18:57:27 C 18 54 17.97 +21 09 15.6 q 006
2016-09-09 19:02:56 C 18 54 18.70 +21 09 10.5 q 006
2016-09-09 19:08:26 C 18 54 19.54 +21 09 06.0 q 006
2016-09-09 19:15:47 C 18 54 20.56 +21 08 59.1 q 006
2016-09-11 04:38:32 C 18 59 10.08 +20 38 48.0 q H45
2016-09-11 04:39:41 C 18 59 10.24 +20 38 47.0 q H45
2016-09-11 04:41:49 C 18 59 10.54 +20 38 45.0 q H45
2016-09-11 04:43:06 C 18 59 10.72 +20 38 43.8 q H45
2016-09-11 04:44:22 C 18 59 10.90 +20 38 42.7 q H45
2016-09-11 04:45:38 C 18 59 11.08 +20 38 41.5 q H45
2016-09-12 03:07:37 C 19 02 21.28 +20 18 44.0 q W19
2016-09-12 03:15:00 C 19 02 22.27 +20 18 37.4 q W19
2016-09-12 03:25:23 C 19 02 23.69 +20 18 28.5 q W19
2016-09-12 03:32:19 C 19 02 24.65 +20 18 21.9 q W19
2016-09-12 03:39:12 C 19 02 25.59 +20 18 15.7 q W19
2016-09-13 03:12:55 C 19 05 42.02 +19 57 34.6 q H45
2016-09-13 03:14:34 C 19 05 42.24 +19 57 32.9 q H45
2016-09-13 03:17:38 C 19 05 42.64 +19 57 30.6 q H45
2016-09-13 03:19:33 C 19 05 42.90 +19 57 28.8 q H45
2016-09-13 03:20:47 C 19 05 43.06 +19 57 27.6 q H45
2016-09-13 03:22:06 C 19 05 43.24 +19 57 26.6 q H45
2016-09-13 19:50:13 C 19 07 58.24 +19 43 03.8 L04
2016-09-13 19:55:39 C 19 07 58.97 +19 42 59.0 L04
2016-09-13 20:00:41 C 19 07 59.62 +19 42 54.7 L04
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)