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
2021-04-10 03:30:55 C 04 21 44.66 +19 24 55.2 U I41
2021-04-10 03:33:52 C 04 21 44.91 +19 24 55.1 U I41
2021-04-10 03:36:50 C 04 21 45.11 +19 24 55.4 U I41
2021-04-10 03:39:47 C 04 21 45.36 +19 24 55.7 U I41
2022-10-05 13:54:39 C 06 02 58.812 +29 50 18.74 V T05
2022-10-05 14:04:40 C 06 02 59.030 +29 50 17.95 V T05
2022-10-05 14:07:16 C 06 02 59.136 +29 50 16.73 V T05
2022-10-05 14:11:50 C 06 02 59.234 +29 50 16.69 V T05
2022-10-05 14:20:58 C 06 02 59.510 +29 50 16.30 V T05
2022-10-17 14:17:59 C 06 08 35.638 +29 23 51.32 V T05
2022-10-17 14:24:43 C 06 08 35.710 +29 23 50.39 V T05
2022-10-17 14:32:08 C 06 08 35.830 +29 23 49.31 V T05
2022-10-17 15:01:41 C 06 08 36.067 +29 23 47.90 V T05
2022-10-23 12:00:07 C 06 09 22.596 +29 07 42.20 V T08
2022-10-23 12:04:06 C 06 09 22.644 +29 07 41.56 V T08
2022-10-23 12:08:06 C 06 09 22.603 +29 07 40.98 V T08
2022-10-23 12:58:18 C 06 09 22.474 +29 07 35.36 V T08
2022-10-28 13:18:59 C 06 08 50.527 +28 51 51.52 V T08
2022-10-28 13:22:59 C 06 08 50.491 +28 51 50.94 V T08
2022-10-28 13:31:42 C 06 08 50.419 +28 51 49.50 V T08
2022-10-28 13:54:04 C 06 08 50.148 +28 51 46.87 V T08
2022-10-30 12:27:10 C 06 08 19.085 +28 45 06.88 V T05
2022-10-30 12:30:26 C 06 08 19.085 +28 45 06.62 V T05
2022-10-30 12:35:31 C 06 08 18.996 +28 45 05.83 V T05
2022-10-30 12:44:16 C 06 08 18.862 +28 45 04.50 V T05
2022-10-31 12:57:46 C 06 07 58.296 +28 41 28.79 V T08
2022-10-31 13:01:05 C 06 07 58.212 +28 41 27.89 V T08
2022-10-31 13:05:04 C 06 07 58.186 +28 41 26.88 V T08
2022-10-31 13:34:59 C 06 07 57.631 +28 41 22.70 V T08
2022-11-01 12:33:44 C 06 07 35.446 +28 37 51.56 V T08
2022-11-01 12:36:23 C 06 07 35.477 +28 37 50.70 V T08
2022-11-01 12:41:03 C 06 07 35.321 +28 37 50.41 V T08
2022-11-01 13:11:25 C 06 07 34.740 +28 37 45.77 V T08
2022-11-05 08:58:02 C 06 05 38.335 +28 22 42.17 V G96
2022-11-05 09:05:28 C 06 05 38.065 +28 22 40.94 V G96
2022-11-05 09:32:55 C 06 05 37.421 +28 22 36.12 V G96
2022-11-05 09:40:22 C 06 05 37.208 +28 22 34.86 V G96
2022-11-20 12:21:27 C 05 50 31.414 +27 03 00.43 V T08
2022-11-20 12:25:39 C 05 50 31.174 +27 02 59.17 V T08
2022-11-20 12:33:03 C 05 50 30.703 +27 02 57.05 V T08
2022-11-20 12:48:10 C 05 50 29.810 +27 02 52.69 V T08
2022-11-20 17:11:45 C 05 50 14.666 +27 01 45.48 V P07
2022-11-20 19:10:20 C 05 50 07.495 +27 01 12.18 V P07
2022-11-20 19:56:02 C 05 50 04.680 +27 00 59.33 V P07
2022-11-20 20:00:29 C 05 50 04.421 +27 00 57.46 V P07
2022-11-21 12:20:13 C 05 49 06.552 +26 56 18.38 V T08
2022-11-21 12:24:53 C 05 49 06.252 +26 56 17.48 V T08
2022-11-21 12:36:26 C 05 49 05.546 +26 56 14.17 V T08
2022-11-21 12:51:37 C 05 49 04.598 +26 56 09.46 V T08
2022-11-24 11:50:35 C 05 44 36.377 +26 35 03.98 V T08
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)