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
2025-01-01 14:11:20 C 08 40 56.645 -04 05 09.42 V T05
2025-01-01 14:15:56 C 08 40 56.424 -04 05 14.89 V T05
2025-01-01 14:24:26 C 08 40 56.023 -04 05 25.15 V T05
2025-01-01 14:40:19 C 08 40 55.274 -04 05 44.09 V T05
2025-01-01 22:37:41 C 08 40 34.776 -04 15 07.67 V M22
2025-01-01 22:41:36 C 08 40 34.586 -04 15 12.46 V M22
2025-01-01 22:49:24 C 08 40 34.214 -04 15 21.92 V M22
2025-01-02 11:44:17 C 08 39 58.311 -04 31 13.87 X F52
2025-01-02 12:01:53 C 08 39 57.422 -04 31 35.36 X F52
2025-01-02 12:19:32 C 08 39 56.526 -04 31 56.77 X F52
2025-01-03 13:27:30 C 08 38 43.176 -05 02 41.39 V T08
2025-01-03 13:29:28 C 08 38 43.066 -05 02 43.84 V T08
2025-01-03 14:08:06 C 08 38 40.992 -05 03 31.21 V T08
2025-01-03 14:10:05 C 08 38 40.891 -05 03 33.77 V T08
2025-01-04 05:27:11 C 08 37 54.725 -05 22 14.30 V W68
2025-01-04 05:58:42 C 08 37 52.968 -05 22 53.22 V W68
2025-01-04 06:01:58 C 08 37 52.788 -05 22 57.29 V W68
2025-01-04 06:08:28 C 08 37 52.433 -05 23 05.50 V W68
2025-01-04 07:20:59 C 08 37 48.958 -05 24 50.11 V 703
2025-01-04 07:24:18 C 08 37 48.781 -05 24 54.50 V 703
2025-01-04 07:27:37 C 08 37 48.580 -05 24 58.68 V 703
2025-01-04 07:30:57 C 08 37 48.400 -05 25 02.68 V 703
2025-01-05 10:49:28 C 08 36 19.927 -05 59 04.85 V T05
2025-01-05 11:24:42 C 08 36 17.825 -05 59 49.13 V T05
2025-01-05 11:27:18 C 08 36 17.664 -05 59 52.44 V T05
2025-01-05 11:33:49 C 08 36 17.275 -06 00 00.50 V T05
2025-01-06 00:30:20 C 08 35 33.125 -06 16 04.66 V M22
2025-01-06 00:34:55 C 08 35 32.849 -06 16 10.49 V M22
2025-01-06 00:42:46 C 08 35 32.362 -06 16 20.39 V M22
2025-01-06 00:59:44 C 08 35 31.337 -06 16 41.66 V M22
2025-01-06 08:17:15 C 08 35 06.263 -06 26 10.32 V 703
2025-01-06 08:20:33 C 08 35 06.054 -06 26 14.53 V 703
2025-01-06 08:23:51 C 08 35 05.856 -06 26 18.60 V 703
2025-01-06 08:27:10 C 08 35 05.658 -06 26 23.17 V 703
2025-01-07 10:15:52 C 08 33 32.852 -06 59 10.98 X F51
2025-01-07 10:32:07 C 08 33 31.788 -06 59 31.87 X F51
2025-01-07 10:48:27 C 08 33 30.713 -06 59 52.70 X F51
2025-01-07 23:34:37 C 08 32 42.696 -07 16 20.53 Z C23
2025-01-07 23:53:57 C 08 32 41.398 -07 16 45.19 Z C23
2025-01-07 23:55:06 C 08 32 41.314 -07 16 47.14 Z C23
2025-01-08 02:45:14 C 08 32 30.958 -07 20 06.29 V W68
2025-01-08 03:36:28 C 08 32 27.545 -07 21 12.20 V W68
2025-01-08 03:39:04 C 08 32 27.372 -07 21 15.55 V W68
2025-01-08 03:44:17 C 08 32 27.026 -07 21 22.36 V W68
2025-01-09 12:00:17 C 08 30 18.362 -08 03 20.56 V T05
2025-01-09 12:41:15 C 08 30 15.379 -08 04 14.05 V T05
2025-01-09 13:21:52 C 08 30 12.444 -08 05 06.61 V T05
2025-01-09 13:57:55 C 08 30 09.838 -08 05 53.30 V T05
2025-01-09 21:40:28 C 08 29 38.971 -08 16 01.63 Z C23
2025-01-09 21:56:02 C 08 29 37.848 -08 16 22.12 Z C23
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)