17188 (1999 WC2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6366567525 ± 6.91e-09
Semi-major axis (a)2.2163129395 AU ± 1.25e-09
Inclination (i)29.45376125° ± 3.51e-06
Long. of Asc. Node (Ω)269.75984206° ± 2.40e-06
Arg. of Perihelion (ω)287.22265467° ± 2.83e-06
Mean Anomaly (M)292.03560408° ± 1.15e-06
Mean Motion (n)0.2987209303°/day ± 2.53e-10
Perihelion dist (q)0.80528234 AU ± 1.53e-08
Aphelion dist (Q)3.62734354 AU ± 1.54e-08
Orbital Period3.29948853 yr ± 2.79e-09
Physical Parameters
H (abs. magnitude)16.42
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.237″
Uncertainty0
Orbit TypeApollo
MOID0.063429 AU
Observations Used717
Radar Obs Used1
Oppositions16
Arc Total1990-2026
First Observation Used1990-07-27
Last Observation Used2026-01-07
Observations (806)
Date Type RA Dec Mag Band Observatory
2012-10-17 14:41:34 c 06 11 07.354 +39 11 30.98 L F51
2012-11-07 11:56:08 c 06 12 06.195 +38 45 08.29 L F51
2012-11-07 12:14:12 c 06 12 05.846 +38 45 06.50 L F51
2012-12-06 01:12:19 C 05 35 03.69 +35 18 51.7 c A24
2012-12-06 01:13:21 C 05 35 03.61 +35 18 49.8 c A24
2012-12-06 01:14:23 C 05 35 03.48 +35 18 48.4 c A24
2012-12-06 02:18:23 C 05 34 57.58 +35 18 10.0 c A24
2012-12-06 02:19:25 C 05 34 57.51 +35 18 09.5 c A24
2012-12-06 02:20:27 C 05 34 57.41 +35 18 08.9 c A24
2012-12-06 02:21:29 C 05 34 57.36 +35 18 08.0 c A24
2012-12-08 08:26:56 C 05 29 58.35 +34 44 11.8 o 926
2012-12-08 08:50:47 C 05 29 56.03 +34 43 55.7 o 926
2012-12-08 09:14:41 C 05 29 53.69 +34 43 39.7 o 926
2012-12-09 20:59:03 C 05 26 28.82 +34 19 10.4 u C63
2012-12-09 22:08:29 C 05 26 21.91 +34 18 21.7 u C63
2012-12-10 02:42:02 C 05 25 54.71 +34 15 06.3 c A24
2012-12-10 02:44:07 C 05 25 54.49 +34 15 04.9 c A24
2012-12-10 03:04:14 C 05 25 52.50 +34 14 50.3 c A24
2012-12-10 03:27:39 C 05 25 50.18 +34 14 32.7 c A24
2012-12-10 03:47:05 C 05 25 48.26 +34 14 19.1 c A24
2012-12-10 03:49:09 C 05 25 48.08 +34 14 16.5 c A24
2012-12-11 03:22:18 C 05 23 28.96 +33 57 06.1 c A24
2012-12-11 03:24:22 C 05 23 28.76 +33 57 04.3 c A24
2012-12-11 03:44:28 C 05 23 26.75 +33 56 49.0 c A24
2012-12-11 04:07:52 C 05 23 24.40 +33 56 31.4 c A24
2012-12-11 04:27:17 C 05 23 22.48 +33 56 16.1 c A24
2012-12-11 04:29:21 C 05 23 22.28 +33 56 15.7 c A24
2012-12-20 05:26:27 C 05 00 48.16 +30 43 54.6 r 703
2012-12-20 05:38:36 C 05 00 46.83 +30 43 41.7 r 703
2012-12-20 05:50:52 C 05 00 45.54 +30 43 29.0 r 703
2012-12-20 06:03:09 C 05 00 44.10 +30 43 17.0 r 703
2012-12-23 04:05:32 C 04 53 17.02 +29 28 31.1 u H21
2012-12-23 04:10:09 C 04 53 16.51 +29 28 25.9 u H21
2012-12-23 04:22:44 C 04 53 15.14 +29 28 12.3 u H21
2012-12-23 04:26:50 C 04 53 14.70 +29 28 07.5 u H21
2012-12-23 04:31:20 C 04 53 14.21 +29 28 02.5 u H21
2012-12-23 04:35:36 C 04 53 13.74 +29 27 57.8 u H21
2012-12-29 20:32:59 C 04 36 43.61 +26 18 04.0 i C91
2012-12-29 20:39:00 C 04 36 43.00 +26 17 56.0 i C91
2012-12-29 20:46:00 C 04 36 42.24 +26 17 47.2 i C91
2012-12-29 20:53:00 C 04 36 41.57 +26 17 39.0 i C91
2013-01-02 18:29:41 C 04 27 42.87 +24 17 12.3 u A50
2013-01-02 18:48:54 C 04 27 41.07 +24 16 46.7 u A50
2013-01-02 19:08:05 C 04 27 39.24 +24 16 20.9 u A50
2013-01-16 04:23:37 C 04 03 09.90 +17 07 34.3 r 703
2013-01-16 04:30:24 C 04 03 09.50 +17 07 25.7 r 703
2013-01-16 04:37:18 C 04 03 09.10 +17 07 16.6 r 703
2013-01-16 04:44:09 C 04 03 08.64 +17 07 07.3 r 703
2013-01-26 01:33:52 C 03 52 36.71 +12 10 12.8 u H21
2013-01-26 01:39:05 C 03 52 36.53 +12 10 06.6 u H21
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-06-27 05:19:00 201575257.47 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)