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
2025-10-16 01:34:10 B 22 44 09.490 +26 58 23.45 Z W36
2025-10-16 01:36:37 B 22 44 09.473 +26 58 20.96 Z W36
2025-10-16 01:38:47 B 22 44 09.458 +26 58 18.80 Z W36
2025-10-16 07:59:20 C 22 44 06.451 +26 51 50.36 V T08
2025-10-16 08:06:37 C 22 44 06.374 +26 51 42.80 V T08
2025-10-16 08:10:42 C 22 44 06.341 +26 51 38.74 V T08
2025-10-16 08:32:18 C 22 44 06.122 +26 51 16.45 V T08
2025-10-17 01:27:45 B 22 44 00.142 +26 33 52.63 Z W36
2025-10-17 01:30:12 B 22 44 00.089 +26 33 50.00 Z W36
2025-10-17 01:32:22 B 22 44 00.084 +26 33 47.99 Z W36
2025-10-17 03:51:09 C 22 43 59.290 +26 31 28.42 V 703
2025-10-17 03:54:49 C 22 43 59.243 +26 31 24.74 V 703
2025-10-17 03:58:34 C 22 43 59.236 +26 31 20.50 V 703
2025-10-17 04:02:20 C 22 43 59.228 +26 31 16.39 V 703
2025-10-18 04:34:50 C 22 43 52.930 +26 06 28.20 V 703
2025-10-18 04:38:11 C 22 43 52.910 +26 06 25.50 V 703
2025-10-18 04:41:32 C 22 43 52.900 +26 06 21.50 V 703
2025-10-18 04:44:53 C 22 43 52.820 +26 06 17.70 V 703
2025-10-19 09:17:45 C 22 43 49.303 +25 37 55.34 V T05
2025-10-19 09:22:20 C 22 43 49.301 +25 37 50.81 V T05
2025-10-19 09:32:15 C 22 43 49.270 +25 37 40.87 V T05
2025-10-19 09:46:48 C 22 43 49.214 +25 37 26.69 V T05
2025-10-19 12:22:59 C 22 43 49.718 +25 34 59.84 V P07
2025-10-19 12:45:56 C 22 43 49.603 +25 34 37.52 V P07
2025-10-19 13:27:19 C 22 43 49.514 +25 33 57.10 V P07
2025-10-19 13:55:48 C 22 43 49.397 +25 33 28.66 V P07
2025-10-19 14:18:03 C 22 43 49.327 +25 33 06.70 V P07
2025-10-19 22:30:27 C 22 43 49.435 +25 24 56.02 V R17
2025-10-19 22:50:08 C 22 43 49.392 +25 24 36.83 V R17
2025-10-19 23:15:42 C 22 43 49.330 +25 24 11.81 V R17
2025-10-19 23:35:23 C 22 43 49.291 +25 23 52.44 V R17
2025-10-20 21:15:52 B 22 43 51.430 +25 02 51.50 X J51
2025-10-20 21:27:55 B 22 43 51.425 +25 02 39.62 X J51
2025-10-20 21:39:57 B 22 43 51.401 +25 02 27.92 X J51
2025-10-20 22:29:29 C 22 43 51.386 +25 01 40.08 V R17
2025-10-20 22:50:42 C 22 43 51.394 +25 01 19.63 V R17
2025-10-20 23:16:16 C 22 43 51.360 +25 00 55.01 V R17
2025-10-20 23:35:57 C 22 43 51.374 +25 00 35.71 V R17
2025-10-21 20:11:19 B 22 43 55.79 +24 40 55.0 V R53
2025-10-21 20:15:35 B 22 43 55.80 +24 40 50.9 V R53
2025-10-21 20:19:51 B 22 43 55.84 +24 40 46.6 V R53
2025-10-22 07:36:36 C 22 43 58.682 +24 30 11.16 V T08
2025-10-22 07:41:17 C 22 43 58.682 +24 30 06.55 V T08
2025-10-22 07:59:10 C 22 43 58.718 +24 29 49.70 V T08
2025-10-22 08:07:04 C 22 43 58.733 +24 29 42.00 V T08
2025-10-22 08:23:19 C 22 43 58.762 +24 29 26.77 V T08
2025-10-22 21:44:15 B 22 44 03.28 +24 16 54.8 V R53
2025-10-22 21:48:31 B 22 44 03.33 +24 16 51.1 V R53
2025-10-22 21:52:47 B 22 44 03.36 +24 16 47.1 V R53
2025-10-22 22:36:01 B 22 44 03.619 +24 16 08.15 X J51
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)