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
2025-09-30 21:10:01 C 22 53 23.796 +33 38 02.22 Z C23
2025-10-01 04:49:53 C 22 53 03.577 +33 29 30.73 V 703
2025-10-01 04:53:12 C 22 53 03.430 +33 29 27.17 V 703
2025-10-01 04:56:32 C 22 53 03.268 +33 29 23.50 V 703
2025-10-01 04:59:51 C 22 53 03.109 +33 29 19.79 V 703
2025-10-01 09:07:13 C 22 52 52.138 +33 24 44.60 V T05
2025-10-01 09:11:51 C 22 52 51.919 +33 24 39.24 V T05
2025-10-01 09:21:24 C 22 52 51.468 +33 24 28.73 V T05
2025-10-01 09:36:46 C 22 52 50.765 +33 24 11.20 V T05
2025-10-01 10:55:18 C 22 52 47.107 +33 22 42.28 V T05
2025-10-01 19:01:51 B 22 52 27.377 +33 13 32.09 V 160
2025-10-01 19:06:10 B 22 52 27.173 +33 13 27.12 V 160
2025-10-01 19:10:50 B 22 52 26.976 +33 13 21.50 V 160
2025-10-01 22:32:57 B 22 52 18.288 +33 09 38.66 X J51
2025-10-01 22:45:00 C 22 52 17.719 +33 09 25.20 V R17
2025-10-01 22:45:12 B 22 52 17.741 +33 09 25.02 X J51
2025-10-01 22:57:26 B 22 52 17.098 +33 09 10.58 X J51
2025-10-01 23:10:20 C 22 52 16.558 +33 08 57.01 V R17
2025-10-01 23:29:54 C 22 52 15.677 +33 08 34.66 V R17
2025-10-01 23:49:27 C 22 52 14.808 +33 08 12.84 V R17
2025-10-02 04:51:47 C 22 52 02.597 +33 02 32.32 V 703
2025-10-02 04:55:31 C 22 52 02.420 +33 02 28.28 V 703
2025-10-02 04:59:17 C 22 52 02.248 +33 02 23.96 V 703
2025-10-02 05:03:05 C 22 52 02.093 +33 02 19.61 V 703
2025-10-03 03:54:16 C 22 51 07.873 +32 36 37.66 V 703
2025-10-03 03:57:33 C 22 51 07.805 +32 36 33.44 V 703
2025-10-03 04:00:51 C 22 51 07.664 +32 36 30.28 V 703
2025-10-03 04:04:09 C 22 51 07.549 +32 36 26.89 V 703
2025-10-03 04:28:59 C 22 51 06.419 +32 35 59.50 V G96
2025-10-03 04:36:27 C 22 51 06.109 +32 35 51.07 V G96
2025-10-03 04:43:55 C 22 51 05.800 +32 35 42.65 V G96
2025-10-03 04:51:23 C 22 51 05.486 +32 35 34.33 V G96
2025-10-03 17:16:59 C 22 50 37.620 +32 21 33.44 X S89
2025-10-03 17:21:08 C 22 50 37.438 +32 21 28.80 X S89
2025-10-03 17:22:39 C 22 50 37.390 +32 21 27.61 X S89
2025-10-03 17:24:12 C 22 50 37.327 +32 21 25.31 X S89
2025-10-03 17:25:42 C 22 50 37.265 +32 21 23.58 X S89
2025-10-03 21:11:38 B 22 50 29.026 +32 17 12.98 X J51
2025-10-03 21:24:29 B 22 50 28.526 +32 16 58.51 X J51
2025-10-03 21:37:21 B 22 50 28.034 +32 16 43.97 X J51
2025-10-04 08:47:11 C 22 50 03.554 +32 04 13.51 V T08
2025-10-04 08:51:52 C 22 50 03.358 +32 04 08.26 V T08
2025-10-04 08:59:59 C 22 50 03.048 +32 03 59.26 V T08
2025-10-04 09:13:40 C 22 50 02.522 +32 03 43.92 V T08
2025-10-05 20:53:23 C 22 48 51.40 +31 23 38.9 V R85
2025-10-05 21:01:09 C 22 48 51.13 +31 23 30.3 V R85
2025-10-05 21:13:51 C 22 48 50.70 +31 23 16.1 V R85
2025-10-06 08:44:52 C 22 48 29.249 +31 10 27.77 V T05
2025-10-06 08:49:27 C 22 48 29.088 +31 10 22.51 V T05
2025-10-06 09:04:32 C 22 48 28.620 +31 10 05.34 V T05
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)