1997 WQ23

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4948340222 ± 3.72e-08
Semi-major axis (a)1.7374212866 AU ± 5.17e-09
Inclination (i)2.44768883° ± 6.63e-06
Long. of Asc. Node (Ω)55.80797335° ± 3.75e-05
Arg. of Perihelion (ω)296.63541243° ± 3.91e-05
Mean Anomaly (M)107.20777495° ± 9.38e-06
Mean Motion (n)0.4303824654°/day ± 1.92e-09
Perihelion dist (q)0.87768612 AU ± 6.48e-08
Aphelion dist (Q)2.59715645 AU ± 6.52e-08
Orbital Period2.29011719 yr ± 1.02e-08
Physical Parameters
H (abs. magnitude)20.88
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.510″
Uncertainty0
Orbit TypeApollo
MOID0.010049 AU
Observations Used171
Radar Obs Used3
Oppositions9
Arc Total1997-2020
First Observation Used1997-11-29
Last Observation Used2020-12-18
Observations (185)
Date Type RA Dec Mag Band Observatory
1997-11-29 07:38:09 C 05 19 22.96 +26 27 35.9 18.4 a 704
1997-11-29 08:05:25 C 05 19 19.56 +26 27 40.5 18.7 b 704
1997-11-29 08:32:13 C 05 19 16.38 +26 27 46.0 19.6 b 704
1997-11-29 09:15:35 C 05 19 10.93 +26 27 52.4 18.7 a 704
1997-11-30 14:24:30 C 05 16 02.20 +26 32 25.6 360
1997-11-30 14:30:59 C 05 16 01.43 +26 32 26.6 360
1997-11-30 14:38:15 C 05 16 00.59 +26 32 27.9 360
1997-12-01 22:35:17 C 05 12 44.27 +26 36 23.3 z 587
1997-12-01 22:38:09 C 05 12 44.02 +26 36 23.6 z 587
1997-12-01 22:43:09 C 05 12 43.52 +26 36 24.3 z 587
1997-12-02 08:20:24 C 05 11 46.55 +26 37 25.5 658
1997-12-02 08:24:13 C 05 11 46.12 +26 37 25.9 658
1997-12-02 08:27:33 C 05 11 45.80 +26 37 26.2 658
1997-12-02 15:54:04 C 05 11 02.39 +26 38 59.7 426
1997-12-02 15:59:05 C 05 11 01.82 +26 39 01.1 426
1997-12-02 16:32:13 C 05 10 58.32 +26 39 03.4 426
1997-12-02 16:43:33 C 05 10 57.13 +26 39 02.8 426
1997-12-03 00:46:53 C 05 10 12.39 +26 39 00.9 z 966
1997-12-03 01:24:17 C 05 10 08.72 +26 39 04.7 z 966
1997-12-03 07:35:04 C 05 09 34.96 +26 39 39.9 658
1997-12-03 07:40:20 C 05 09 34.41 +26 39 40.2 658
1997-12-03 07:45:51 C 05 09 33.89 +26 39 40.7 658
1997-12-04 08:51:38 C 05 07 17.44 +26 41 47.8 18.9 b 704
1997-12-04 09:16:34 C 05 07 15.20 +26 41 51.0 18.8 b 704
1997-12-04 09:40:52 C 05 07 12.75 +26 41 52.6 18.0 b 704
1997-12-04 10:22:57 C 05 07 08.84 +26 41 51.3 18.0 b 704
1997-12-04 15:19:46 C 05 06 44.57 +26 42 15.0 z 402
1997-12-04 15:23:47 C 05 06 44.23 +26 42 15.2 z 402
1997-12-04 15:27:46 C 05 06 43.79 +26 42 15.4 z 402
1997-12-04 16:53:30 C 05 06 35.71 +26 42 20.9 360
1997-12-04 16:58:29 C 05 06 35.26 +26 42 21.1 360
1997-12-04 17:05:00 C 05 06 34.62 +26 42 21.2 360
1997-12-04 18:10:10 C 05 06 28.51 +26 42 21.4 z 900
1997-12-04 18:37:29 C 05 06 25.91 +26 42 22.5 z 900
1997-12-05 01:32:38 C 05 05 51.40 +26 42 42.8 z 118
1997-12-05 01:36:04 C 05 05 51.06 +26 42 42.6 z 118
1997-12-05 21:34:10 C 05 04 14.42 +26 43 48.8 046
1997-12-05 21:36:19 C 05 04 14.21 +26 43 49.4 046
1997-12-05 21:38:07 C 05 04 14.07 +26 43 49.3 046
1997-12-05 21:39:48 C 05 04 13.90 +26 43 48.7 046
1997-12-06 09:56:43 C 05 03 14.08 +26 44 22.2 658
1997-12-06 10:01:58 C 05 03 13.61 +26 44 22.2 658
1997-12-06 10:07:37 C 05 03 13.12 +26 44 22.3 658
1997-12-07 00:29:45 C 05 02 07.03 +26 44 55.6 z 118
1997-12-07 00:35:22 C 05 02 06.58 +26 44 55.8 z 118
1997-12-07 00:40:20 C 05 02 06.17 +26 44 55.7 z 118
1997-12-09 15:07:25 C 04 57 43.92 +26 46 21.4 z 402
1997-12-09 15:11:26 C 04 57 43.63 +26 46 21.1 z 402
1997-12-09 15:15:26 C 04 57 43.33 +26 46 21.2 z 402
1997-12-18 10:40:48 C 04 47 19.56 +26 42 14.7 658
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-11-19 00:25:00 -124458.2215 0.3 Hz 2380 -1 -1
2013-11-19 00:38:00 96148022.94 4 us 2380 -1 -1
2013-11-22 01:53:00 111982347.7 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)