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
2013-11-20 03:09:01 C 00 44 13.86 +03 44 22.7 u H21
2013-11-20 03:26:36 C 00 44 22.86 +03 45 48.7 q H45
2013-11-20 03:27:43 C 00 44 23.39 +03 45 53.2 q H45
2013-11-20 03:29:16 C 00 44 24.16 +03 46 00.1 q H45
2013-11-20 03:30:16 C 00 44 24.59 +03 46 04.4 q H45
2013-11-20 03:31:45 C 00 44 25.31 +03 46 11.3 q H45
2013-11-20 03:32:43 C 00 44 25.78 +03 46 15.6 q H45
2013-11-20 03:33:58 C 00 44 26.42 +03 46 21.5 q H45
2013-11-20 03:35:11 C 00 44 26.99 +03 46 27.2 q H45
2013-11-20 03:36:24 C 00 44 27.57 +03 46 32.2 q H45
2013-11-20 03:37:35 C 00 44 28.10 +03 46 37.4 q H45
2013-11-20 03:38:59 C 00 44 28.77 +03 46 44.3 q H45
2013-11-20 03:40:22 C 00 44 29.51 +03 46 50.1 q H45
2013-11-22 21:01:57 C 01 13 53.06 +08 04 53.1 q A06
2013-11-22 21:03:09 C 01 13 53.50 +08 04 57.2 q A06
2013-11-23 19:09:52 C 01 22 22.83 +09 16 46.4 w I99
2013-11-23 19:14:50 C 01 22 24.58 +09 17 01.3 w I99
2013-11-23 19:19:46 C 01 22 26.28 +09 17 16.8 w I99
2013-11-23 22:36:48 C 01 23 35.23 +09 27 21.6 w I76
2013-11-23 22:40:58 C 01 23 36.65 +09 27 33.7 w I76
2013-11-23 22:45:23 C 01 23 38.16 +09 27 47.5 w I76
2013-11-25 21:51:46 C 01 39 23.18 +11 37 04.4 t 204
2013-11-25 21:58:12 C 01 39 25.09 +11 37 20.2 t 204
2013-11-25 22:05:01 C 01 39 27.05 +11 37 36.8 t 204
2013-11-25 22:11:27 C 01 39 28.98 +11 37 52.7 t 204
2013-11-25 22:18:16 C 01 39 30.99 +11 38 09.4 t 204
2013-11-25 23:14:27 C 01 39 48.64 +11 40 46.4 q G40
2013-11-25 23:24:19 C 01 39 51.51 +11 41 09.8 q G40
2013-11-25 23:34:23 C 01 39 54.46 +11 41 34.7 q G40
2013-11-25 23:44:17 C 01 39 57.27 +11 41 58.8 q G40
2013-11-26 00:06:10 C 01 40 03.64 +11 42 52.1 q G40
2013-11-26 20:28:20 C 01 46 06.46 +12 30 21.6 c A24
2013-11-26 20:29:22 C 01 46 06.78 +12 30 22.8 c A24
2013-11-26 21:40:43 C 01 46 26.07 +12 33 03.9 t 130
2013-11-26 21:42:55 C 01 46 26.66 +12 33 07.0 t 130
2013-11-26 21:45:08 C 01 46 27.26 +12 33 12.8 t 130
2013-11-26 21:47:37 C 01 46 28.00 +12 33 17.3 t 130
2013-11-28 05:34:14 C 01 55 02.05 +13 39 48.7 q H45
2013-11-28 05:35:41 C 01 55 02.37 +13 39 52.3 q H45
2013-11-28 05:37:17 C 01 55 02.81 +13 39 55.5 q H45
2013-11-28 05:38:50 C 01 55 03.19 +13 39 58.3 q H45
2013-11-28 05:40:05 C 01 55 03.49 +13 40 00.7 q H45
2013-11-28 05:41:16 C 01 55 03.81 +13 40 02.9 q H45
2013-11-28 05:44:34 C 01 55 04.51 +13 40 09.5 q H45
2013-11-28 05:46:17 C 01 55 05.00 +13 40 12.7 q H45
2013-11-28 22:59:59 C 01 59 23.29 +14 12 33.0 q 160
2013-11-28 23:03:33 C 01 59 24.11 +14 12 39.2 q 160
2013-11-28 23:07:08 C 01 59 24.90 +14 12 45.5 q 160
2013-11-29 20:02:10 C 02 04 22.64 +14 49 15.9 q 160
2013-11-29 20:05:19 C 02 04 23.32 +14 49 21.5 q 160
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)