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
2023-01-14 07:49:34 C 04 17 00.444 +17 22 09.95 V T05
2023-01-14 08:04:07 C 04 16 59.875 +17 22 04.01 V T05
2023-01-20 12:04:34 C 04 12 28.32 +16 28 03.7 V D29
2023-01-20 12:24:56 C 04 12 27.78 +16 27 57.1 V D29
2023-01-20 12:45:18 C 04 12 27.26 +16 27 50.1 V D29
2023-01-21 05:20:38 C 04 12 04.349 +16 22 22.66 V 703
2023-01-21 05:28:15 C 04 12 04.133 +16 22 19.42 V 703
2023-01-21 05:35:53 C 04 12 03.971 +16 22 16.25 V 703
2023-01-21 05:43:31 C 04 12 03.769 +16 22 14.30 V 703
2023-01-22 07:03:37 C 04 11 32.076 +16 14 09.53 V T05
2023-01-22 07:07:38 C 04 11 31.978 +16 14 08.12 V T05
2023-01-22 07:15:34 C 04 11 31.807 +16 14 05.78 V T05
2023-01-22 07:31:06 C 04 11 31.435 +16 14 01.18 V T05
2023-01-24 11:54:20 C 04 10 36.92 +15 58 04.7 V D29
2023-01-24 12:14:42 C 04 10 36.58 +15 57 58.8 V D29
2023-01-24 12:35:03 C 04 10 36.23 +15 57 52.7 V D29
2023-01-24 20:00:49 C 04 10 29.580 +15 55 51.28 V M22
2023-01-24 20:05:23 C 04 10 29.470 +15 55 49.73 V M22
2023-01-24 20:13:11 C 04 10 29.376 +15 55 47.60 V M22
2023-01-24 20:28:48 C 04 10 29.134 +15 55 43.39 V M22
2023-02-11 01:19:28 C 04 11 34.430 +14 29 25.44 V W68
2023-02-11 01:24:01 C 04 11 34.442 +14 29 26.63 V W68
2023-02-11 01:38:24 C 04 11 34.762 +14 29 24.32 V W68
2023-02-11 01:46:11 C 04 11 34.930 +14 29 22.88 V W68
2023-02-12 18:49:49 C 04 12 23.129 +14 23 59.68 V M22
2023-02-12 18:55:10 C 04 12 23.292 +14 23 59.50 V M22
2023-02-12 19:04:23 C 04 12 23.386 +14 23 57.98 V M22
2023-02-12 19:21:56 C 04 12 23.760 +14 23 55.39 V M22
2023-02-19 03:53:19 C 04 16 21.205 +14 07 51.20 V 703
2023-02-19 04:01:32 C 04 16 21.335 +14 07 49.80 V 703
2023-02-19 04:09:42 C 04 16 21.598 +14 07 49.30 V 703
2023-02-19 04:56:12 C 04 16 22.991 +14 07 45.41 V 703
2023-03-02 11:59:46 C 04 26 49.99 +13 51 50.3 V D29
2023-03-02 12:20:07 C 04 26 50.93 +13 51 49.0 V D29
2023-03-02 12:40:29 C 04 26 51.81 +13 51 49.0 V D29
2023-03-24 02:38:38 C 04 56 46.410 +13 43 20.96 V 703
2023-03-24 03:01:02 C 04 56 48.120 +13 43 20.57 V 703
2023-04-02 03:19:14 C 05 12 33.872 +13 40 22.91 V 703
2023-04-02 03:26:24 C 05 12 34.423 +13 40 22.15 V 703
2023-04-02 03:40:44 C 05 12 35.413 +13 40 22.84 V 703
2023-08-29 23:25:32 C 14 13 29.479 -06 33 56.02 V W68
2023-08-29 23:30:43 C 14 13 30.751 -06 33 56.84 V W68
2023-08-29 23:40:32 C 14 13 33.058 -06 33 58.75 V W68
2023-08-29 23:56:51 C 14 13 36.902 -06 34 02.14 V W68
2023-09-26 02:14:55 C 16 43 58.408 -07 03 37.15 V 703
2023-09-26 02:18:49 C 16 43 59.246 -07 03 35.10 V G96
2023-09-26 02:23:40 C 16 44 00.222 -07 03 35.35 V 703
2023-09-26 02:26:39 C 16 44 00.920 -07 03 34.42 V G96
2023-09-26 02:28:03 C 16 44 01.205 -07 03 34.13 V 703
2023-09-26 02:34:28 C 16 44 02.587 -07 03 33.70 V G96
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)