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
2022-11-24 11:55:24 C 05 44 36.019 +26 35 02.69 V T08
2022-11-24 12:03:54 C 05 44 35.450 +26 35 00.49 V T08
2022-11-24 12:52:38 C 05 44 32.095 +26 34 45.08 V T08
2022-11-25 08:54:10 C 05 43 12.475 +26 28 25.18 V T08
2022-11-25 08:58:50 C 05 43 12.127 +26 28 23.92 V T08
2022-11-25 09:47:42 C 05 43 08.743 +26 28 09.05 V T08
2022-11-25 09:54:24 C 05 43 08.258 +26 28 07.00 V T08
2022-11-27 07:17:53 C 05 39 59.519 +26 13 11.68 V G96
2022-11-27 07:25:18 C 05 39 58.968 +26 13 09.05 V G96
2022-11-27 07:32:42 C 05 39 58.424 +26 13 06.60 V G96
2022-11-27 07:40:09 C 05 39 57.877 +26 13 04.08 V G96
2022-12-01 11:28:46 C 05 32 33.190 +25 37 24.96 V T05
2022-12-01 11:32:51 C 05 32 32.858 +25 37 23.34 V T05
2022-12-01 11:43:07 C 05 32 32.035 +25 37 19.45 V T05
2022-12-01 11:57:29 C 05 32 30.895 +25 37 13.98 V T05
2022-12-01 15:45:09 C 05 32 13.574 +25 35 53.16 V P07
2022-12-01 16:32:15 C 05 32 09.790 +25 35 35.27 V P07
2022-12-01 16:36:58 C 05 32 09.430 +25 35 33.65 V P07
2022-12-01 17:33:00 C 05 32 04.961 +25 35 12.34 V P07
2022-12-01 18:26:40 C 05 32 00.665 +25 34 51.46 V P07
2022-12-13 10:45:11 C 05 08 45.655 +23 33 10.91 V T05
2022-12-13 10:49:56 C 05 08 45.223 +23 33 08.64 V T05
2022-12-13 10:59:07 C 05 08 44.417 +23 33 04.03 V T05
2022-12-13 11:14:19 C 05 08 43.082 +23 32 56.65 V T05
2022-12-13 18:33:29 C 05 08 05.27 +23 29 22.3 V D29
2022-12-13 18:53:50 C 05 08 03.49 +23 29 12.2 V D29
2022-12-16 06:18:20 C 05 02 59.240 +23 00 04.07 V G96
2022-12-16 06:26:27 C 05 02 58.528 +23 00 00.11 V G96
2022-12-16 06:34:33 C 05 02 57.804 +22 59 56.26 V G96
2022-12-16 06:42:40 C 05 02 57.095 +22 59 51.86 V G96
2022-12-17 05:52:59 C 05 00 59.054 +22 48 16.56 V G96
2022-12-17 06:00:58 C 05 00 58.360 +22 48 12.56 V G96
2022-12-17 06:08:57 C 05 00 57.661 +22 48 08.50 V G96
2022-12-17 06:16:56 C 05 00 56.966 +22 48 04.50 V G96
2022-12-17 11:55:20 C 05 00 28.67 +22 45 13.1 V D29
2022-12-17 12:15:42 C 05 00 26.91 +22 45 03.1 V D29
2022-12-17 20:16:09 C 04 59 46.140 +22 40 58.73 X B72
2022-12-17 20:20:28 C 04 59 45.775 +22 40 56.64 X B72
2022-12-17 20:24:48 C 04 59 45.391 +22 40 54.41 X B72
2022-12-18 19:55:50 C 04 57 46.70 +22 28 59.6 V K83
2022-12-18 20:01:36 C 04 57 46.16 +22 28 56.4 V K83
2022-12-18 20:07:23 C 04 57 45.67 +22 28 54.1 V K83
2022-12-19 08:29:26 C 04 56 43.026 +22 22 37.52 V 703
2022-12-19 08:37:38 C 04 56 42.328 +22 22 33.28 V 703
2022-12-19 08:45:50 C 04 56 41.629 +22 22 28.74 V 703
2022-12-19 08:54:02 C 04 56 40.866 +22 22 24.71 V 703
2022-12-21 07:26:12 C 04 52 50.149 +21 58 31.08 V 703
2022-12-21 07:33:10 C 04 52 49.552 +21 58 27.19 V 703
2022-12-21 07:41:25 C 04 52 48.882 +21 58 23.34 V 703
2022-12-21 07:48:22 C 04 52 48.256 +21 58 19.09 V 703
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)