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
2025-10-22 22:50:04 B 22 44 03.718 +24 15 54.58 X J51
2025-10-22 23:04:06 B 22 44 03.720 +24 15 42.08 X J51
2025-10-24 11:57:28 C 22 44 20.851 +23 42 00.36 V P07
2025-10-24 12:00:00 C 22 44 20.81 +23 41 49.9 V D29
2025-10-24 12:14:11 C 22 44 20.952 +23 41 45.17 V P07
2025-10-24 12:20:21 C 22 44 20.98 +23 41 32.5 V D29
2025-10-24 12:25:33 C 22 44 21.048 +23 41 34.98 V P07
2025-10-24 12:40:43 C 22 44 21.06 +23 41 13.1 V D29
2025-10-24 12:57:25 C 22 44 21.228 +23 41 06.36 V P07
2025-10-25 05:33:17 C 22 44 31.049 +23 26 06.25 V T05
2025-10-25 05:35:54 C 22 44 31.054 +23 26 04.20 V T05
2025-10-25 05:40:34 C 22 44 31.099 +23 25 59.92 V T05
2025-10-25 06:25:52 C 22 44 31.418 +23 25 19.78 V T05
2025-10-26 03:22:45 C 22 44 45.330 +23 06 47.95 V G96
2025-10-26 03:30:53 C 22 44 45.409 +23 06 40.90 V G96
2025-10-26 03:39:04 C 22 44 45.481 +23 06 33.62 V G96
2025-10-26 03:47:13 C 22 44 45.560 +23 06 26.60 V G96
2025-10-26 11:34:31 C 22 44 51.408 +22 59 46.75 V P07
2025-10-26 12:11:39 C 22 44 51.758 +22 59 14.89 V P07
2025-10-26 12:44:13 C 22 44 52.094 +22 58 46.38 V P07
2025-10-26 13:17:52 C 22 44 52.423 +22 58 17.08 V P07
2025-10-28 11:31:16 C 22 45 31.75 +22 18 48.8 V D29
2025-10-28 11:37:04 C 22 45 31.867 +22 18 52.67 V P07
2025-10-28 11:37:39 C 22 45 31.865 +22 18 51.52 V P07
2025-10-28 11:51:38 C 22 45 32.02 +22 18 31.8 V D29
2025-10-28 12:22:20 C 22 45 32.484 +22 18 14.76 V P07
2025-10-28 12:41:32 C 22 45 32.674 +22 17 58.27 V P07
2025-10-28 13:12:44 C 22 45 33.142 +22 17 32.24 V P07
2025-10-29 07:33:13 C 22 45 51.134 +22 02 17.34 V T05
2025-10-29 07:37:15 C 22 45 51.185 +22 02 14.06 V T05
2025-10-29 07:45:57 C 22 45 51.293 +22 02 07.19 V T05
2025-10-29 08:01:27 C 22 45 51.550 +22 01 54.41 V T05
2025-10-30 07:23:39 C 22 46 16.553 +21 42 59.04 V T05
2025-10-30 07:27:52 C 22 46 16.625 +21 42 55.69 V T05
2025-10-30 07:35:46 C 22 46 16.738 +21 42 49.64 V T05
2025-10-30 07:53:47 C 22 46 17.059 +21 42 34.85 V T05
2025-10-31 08:36:43 C 22 46 45.593 +21 23 01.54 V T05
2025-10-31 10:42:19 C 22 46 47.914 +21 21 21.85 V T05
2025-10-31 10:47:34 C 22 46 48.019 +21 21 17.21 V T05
2025-10-31 10:55:26 C 22 46 48.168 +21 21 11.81 V T05
2025-11-08 07:23:25 C 22 51 37.912 +19 07 34.77 X F52
2025-11-08 07:34:50 C 22 51 38.239 +19 07 27.42 X F52
2025-11-08 07:46:17 C 22 51 38.565 +19 07 20.10 X F52
2025-11-09 07:43:50 C 22 52 23.345 +18 52 14.77 V T08
2025-11-09 07:54:42 C 22 52 23.630 +18 52 07.86 V T08
2025-11-09 08:21:39 C 22 52 24.444 +18 51 50.72 V T08
2025-11-09 08:25:36 C 22 52 24.586 +18 51 47.99 V T08
2025-11-09 18:14:49 B 22 52 43.780 +18 45 41.58 W 130
2025-11-09 18:24:13 B 22 52 44.071 +18 45 35.85 W 130
2025-11-09 18:32:49 B 22 52 44.326 +18 45 30.75 W 130
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)