2005 WK56

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3926241763 ± 3.78e-07
Semi-major axis (a)1.6213826524 AU ± 8.65e-07
Inclination (i)5.34856510° ± 6.62e-06
Long. of Asc. Node (Ω)76.44018566° ± 9.92e-06
Arg. of Perihelion (ω)321.71504071° ± 7.92e-05
Mean Anomaly (M)254.86829272° ± 2.81e-03
Mean Motion (n)0.4774017350°/day ± 3.82e-07
Perihelion dist (q)0.98478862 AU ± 8.07e-07
Aphelion dist (Q)2.25797668 AU ± 1.35e-06
Orbital Period2.06456368 yr ± 1.65e-06
Physical Parameters
H (abs. magnitude)22.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.457″
Uncertainty1
Orbit TypeApollo
MOID0.030930 AU
Observations Used134
Radar Obs Used2
Oppositions1
Arc Total2005-2005
First Observation Used2005-11-30
Last Observation Used2005-12-26
Observations (146)
Date Type RA Dec Mag Band Observatory
2005-12-01 03:44:09 C 02 40 01.78 -04 43 46.2 c 844
2005-12-01 03:46:52 C 02 40 03.31 -04 43 16.9 c 844
2005-12-01 03:49:34 C 02 40 04.75 -04 42 48.1 c 844
2005-12-02 06:39:05 C 02 55 25.94 -00 06 05.2 r H45
2005-12-02 06:45:11 C 02 55 29.00 -00 05 04.2 r H45
2005-12-03 06:06:10 C 03 07 59.15 +03 43 06.7 o 294
2005-12-03 06:09:30 C 03 08 00.90 +03 43 41.9 o 294
2005-12-04 00:29:01 C 03 17 29.61 +06 31 10.1 o 294
2005-12-04 00:33:03 C 03 17 31.39 +06 31 43.7 o 294
2005-12-04 00:37:18 C 03 17 33.34 +06 32 20.5 o 294
2005-12-04 00:47:35 C 03 17 37.99 +06 33 53.0 o 294
2005-12-04 00:54:45 C 03 17 41.54 +06 34 57.6 o 294
2005-12-04 05:48:04 C 03 19 58.32 +07 18 01.8 r 448
2005-12-04 05:50:43 C 03 19 59.50 +07 18 24.9 r 448
2005-12-04 05:53:22 C 03 20 00.67 +07 18 47.9 r 448
2005-12-04 06:02:38 C 03 20 06.67 +07 20 06.7 r G77
2005-12-04 06:10:55 C 03 20 10.41 +07 21 19.1 r G77
2005-12-04 06:13:54 C 03 20 11.67 +07 21 44.9 r G77
2005-12-04 06:53:47 C 03 20 29.39 +07 27 30.0 r G77
2005-12-04 07:03:37 C 03 20 33.68 +07 28 53.8 r G77
2005-12-05 05:06:57 C 03 30 53.32 +10 30 25.8 r H51
2005-12-05 05:48:23 C 03 31 10.69 +10 35 49.9 r H51
2005-12-05 05:51:44 C 03 31 09.76 +10 36 16.7 r 932
2005-12-05 06:27:15 C 03 31 24.79 +10 40 52.6 r 932
2005-12-05 06:37:12 C 03 31 29.01 +10 42 09.6 r 932
2005-12-06 07:17:06 C 03 42 11.70 +13 45 15.8 r H45
2005-12-06 07:19:30 C 03 42 12.61 +13 45 31.9 r H45
2005-12-06 07:26:49 C 03 42 15.39 +13 46 21.8 r H45
2005-12-06 07:28:22 C 03 42 16.07 +13 46 33.1 r H45
2005-12-06 07:33:38 C 03 42 18.12 +13 47 09.6 r H45
2005-12-06 07:35:11 C 03 42 18.70 +13 47 19.3 r H45
2005-12-06 07:39:59 C 03 42 20.54 +13 47 54.0 r H45
2005-12-06 07:47:57 C 03 42 23.68 +13 48 48.0 r H45
2005-12-07 04:53:00 C 03 51 02.22 +16 09 19.0 16.9 c 704
2005-12-07 05:11:37 C 03 51 08.74 +16 11 17.0 17.4 c 704
2005-12-07 05:30:12 C 03 51 15.28 +16 13 14.5 17.3 c 704
2005-12-07 05:48:27 C 03 51 21.67 +16 15 09.6 17.3 c 704
2005-12-07 06:07:06 C 03 51 28.24 +16 17 07.0 17.4 c 704
2005-12-07 06:35:40 C 03 51 36.28 +16 19 59.5 r H45
2005-12-07 06:38:04 C 03 51 37.19 +16 20 13.9 r H45
2005-12-07 21:49:14 C 03 57 26.38 +17 51 46.9 c A48
2005-12-07 21:51:54 C 03 57 27.27 +17 52 02.5 c A48
2005-12-07 21:54:35 C 03 57 28.19 +17 52 18.2 c A48
2005-12-07 21:57:15 C 03 57 29.09 +17 52 33.7 c A48
2005-12-09 07:07:05 C 04 09 02.64 +20 51 07.9 r H45
2005-12-09 07:10:20 C 04 09 03.63 +20 51 23.5 r H45
2005-12-09 07:15:09 C 04 09 05.10 +20 51 47.0 r H45
2005-12-09 07:16:54 C 04 09 05.66 +20 51 55.6 r H45
2005-12-09 07:18:41 C 04 09 06.17 +20 52 04.1 r H45
2005-12-09 21:23:43 C 04 13 46.59 +21 59 00.5 c A48
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2005-12-03 02:35:00 -51101.9482 1 Hz 2380 -1 -1
2005-12-03 02:47:00 47136823.75 8 us 2380 -1 -1
2005-12-04 01:51:00 -58965.1017 0.1 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)