IAA RAS IAA Minor Planet Database

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
2000-08-01 21:10:28 C 15 03 45.96 +37 09 34.5 – z 151
2000-08-02 05:51:19 C 15 07 51.36 +37 12 11.4 – – 642
2000-08-02 05:58:11 C 15 07 54.48 +37 12 11.9 – – 642
2000-08-02 06:05:41 C 15 07 58.00 +37 12 14.3 – – 642
2000-08-03 05:13:16 C 15 18 42.18 +37 16 33.9 – – 642
2000-08-03 05:17:43 C 15 18 44.27 +37 16 34.2 – – 642
2000-08-03 05:20:41 C 15 18 45.61 +37 16 34.2 – – 642
2000-08-03 05:25:53 C 15 18 47.95 +37 16 34.4 – – 642
2000-08-03 05:27:22 C 15 18 48.68 +37 16 35.7 – – 642
2000-08-04 05:17:44 C 15 29 37.09 +37 17 11.9 – – 642
2000-08-04 05:23:41 C 15 29 39.64 +37 17 11.2 – – 642
2000-08-04 05:31:12 C 15 29 42.95 +37 17 10.4 – – 642
2000-08-05 03:10:35 C 15 39 17.12 +37 14 33.6 – z 762
2000-08-05 03:24:06 C 15 39 22.51 +37 14 32.7 – z 762
2000-08-05 03:34:56 C 15 39 27.17 +37 14 30.5 – z 762
2000-08-05 05:49:09 C 15 40 25.81 +37 14 03.1 – – 642
2000-08-05 05:53:00 C 15 40 27.44 +37 14 02.0 – – 642
2000-08-05 05:54:17 C 15 40 28.06 +37 14 01.4 – – 642
2000-08-05 05:59:55 C 15 40 30.37 +37 14 00.5 – – 642
2000-08-05 06:02:31 C 15 40 31.52 +37 13 59.6 – – 642
2000-08-06 03:09:51 C 15 49 35.23 +37 08 35.9 – i 739
2000-08-06 03:18:57 C 15 49 38.91 +37 08 32.8 – i 739
2000-08-06 03:20:24 C 15 49 39.51 +37 08 32.1 – i 739
2000-08-06 03:21:41 C 15 49 40.10 +37 08 31.6 – i 739
2000-08-06 06:02:42 C 15 50 47.96 +37 07 30.8 – – 642
2000-08-06 06:07:10 C 15 50 49.70 +37 07 29.4 – – 642
2000-08-06 06:11:38 C 15 50 51.64 +37 07 28.5 – – 642
2000-08-07 05:53:21 C 16 00 40.88 +36 58 06.2 – – 642
2000-08-07 05:57:47 C 16 00 42.82 +36 58 04.2 – – 642
2000-08-07 06:02:15 C 16 00 44.54 +36 58 01.8 – – 642
2000-08-08 03:51:18 C 16 09 29.34 +36 47 00.0 – z 762
2000-08-08 03:59:05 C 16 09 32.37 +36 46 55.1 – z 762
2000-08-08 04:07:47 C 16 09 35.75 +36 46 49.9 – z 762
2000-08-09 02:55:05 C 16 18 26.75 +36 33 06.3 – i 726
2000-08-09 03:00:05 C 16 18 28.64 +36 33 02.7 – i 726
2000-08-09 03:07:35 C 16 18 31.44 +36 32 57.7 – i 726
2000-08-09 03:12:35 C 16 18 33.32 +36 32 54.0 – i 726
2000-08-09 03:19:34 C 16 18 35.92 +36 32 49.5 – i 726
2000-08-09 03:24:33 C 16 18 37.79 +36 32 45.9 – i 726
2000-08-09 03:55:09 C 16 18 49.41 +36 32 34.4 16.1 c 704
2000-08-09 04:36:18 C 16 19 04.69 +36 32 05.8 15.2 c 704
2000-08-09 04:56:54 C 16 19 12.36 +36 31 51.2 15.4 c 704
2000-08-09 05:17:30 C 16 19 20.01 +36 31 36.7 15.7 c 704
2000-08-09 19:49:16 C 16 24 48.18 +36 21 32.9 – c 639
2000-08-09 20:00:24 C 16 24 52.22 +36 21 24.6 – c 639
2000-08-09 20:08:25 C 16 24 55.12 +36 21 17.7 – c 639
2000-08-09 20:22:24 C 16 25 00.27 +36 21 08.4 – c 639
2000-08-09 20:25:37 C 16 25 01.29 +36 21 06.1 – – 118
2000-08-09 20:30:41 C 16 25 03.13 +36 21 02.3 – – 118
2000-08-10 02:56:49 C 16 27 25.91 +36 16 23.7 – i 726
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)