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
2025-08-29 00:55:11 B 23 55 35.705 +43 59 50.86 V S47
2025-08-31 06:58:00 C 23 50 30.282 +43 44 07.04 V 703
2025-08-31 07:01:18 C 23 50 29.872 +43 44 06.47 V 703
2025-08-31 07:04:35 C 23 50 29.584 +43 44 05.28 V 703
2025-08-31 07:07:53 C 23 50 29.238 +43 44 03.77 V 703
2025-08-31 10:54:12 C 23 50 07.502 +43 42 50.65 V T08
2025-08-31 11:43:50 C 23 50 02.549 +43 42 33.73 V T08
2025-08-31 12:25:58 C 23 49 58.313 +43 42 18.94 V T08
2025-08-31 13:02:32 C 23 49 54.670 +43 42 05.90 V T08
2025-09-01 03:17:14 C 23 48 33.415 +43 36 58.32 V R17
2025-09-01 03:38:36 C 23 48 31.291 +43 36 50.08 V R17
2025-09-01 03:59:30 C 23 48 29.201 +43 36 42.08 V R17
2025-09-01 04:09:13 C 23 48 28.229 +43 36 38.12 V R17
2025-09-02 04:16:02 B 23 46 11.081 +43 27 08.93 W X04
2025-09-02 04:23:20 B 23 46 10.378 +43 27 05.72 W X04
2025-09-02 04:30:35 B 23 46 09.622 +43 27 02.84 W X04
2025-09-02 10:33:40 C 23 45 35.016 +43 24 38.77 V T05
2025-09-02 10:36:56 C 23 45 34.694 +43 24 37.55 V T05
2025-09-02 10:41:38 C 23 45 34.222 +43 24 35.53 V T05
2025-09-02 10:59:07 C 23 45 32.458 +43 24 28.22 V T05
2025-09-03 05:10:34 B 23 43 48.40 +43 16 27.2 Z W37
2025-09-03 05:29:04 B 23 43 46.53 +43 16 18.7 Z W37
2025-09-03 05:45:33 B 23 43 44.88 +43 16 11.8 Z W37
2025-09-03 10:11:32 C 23 43 19.802 +43 14 15.50 V T08
2025-09-03 10:15:31 C 23 43 19.399 +43 14 13.67 V T08
2025-09-03 10:56:18 C 23 43 15.295 +43 13 55.31 V T08
2025-09-03 19:56:59 B 23 42 24.17 +43 09 35.0 X L76
2025-09-03 20:05:13 B 23 42 23.37 +43 09 31.2 X L76
2025-09-03 20:12:56 B 23 42 22.54 +43 09 27.9 X L76
2025-09-03 20:20:08 B 23 42 21.83 +43 09 24.7 X L76
2025-09-03 22:15:50 B 23 42 11.057 +43 08 29.72 V R61
2025-09-03 22:24:50 B 23 42 10.157 +43 08 25.66 V R61
2025-09-03 22:34:25 B 23 42 09.221 +43 08 21.08 V R61
2025-09-03 23:18:16 B 23 42 05.143 +43 08 02.44 Z J51
2025-09-03 23:30:27 B 23 42 03.948 +43 07 57.00 Z J51
2025-09-03 23:42:38 B 23 42 02.748 +43 07 51.49 Z J51
2025-09-04 22:45:12 B 23 39 51.209 +42 56 19.39 V R61
2025-09-04 22:56:16 B 23 39 50.098 +42 56 13.81 V R61
2025-09-04 23:07:22 B 23 39 48.998 +42 56 08.16 V R61
2025-09-05 01:36:08 C 23 39 34.200 +42 54 48.53 Z C23
2025-09-05 02:06:56 C 23 39 31.205 +42 54 32.11 Z C23
2025-09-05 03:51:47 C 23 39 20.904 +42 53 35.95 Z C23
2025-09-05 10:18:26 C 23 38 45.204 +42 50 20.18 V T08
2025-09-05 10:22:24 C 23 38 44.803 +42 50 18.13 V T08
2025-09-05 10:31:16 C 23 38 43.920 +42 50 13.52 V T08
2025-09-05 11:02:25 C 23 38 40.819 +42 49 56.75 V T08
2025-09-05 20:25:24 B 23 37 47.91 +42 44 43.5 X L76
2025-09-05 20:30:32 B 23 37 47.38 +42 44 40.9 X L76
2025-09-05 20:35:40 B 23 37 46.91 +42 44 38.0 X L76
2025-09-05 20:40:49 B 23 37 46.38 +42 44 35.2 X L76
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)