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
2013-07-19 21:08:08 C 18 10 55.62 +11 24 06.8 q K20
2013-07-19 21:50:03 C 18 10 54.40 +11 24 12.5 q K20
2013-07-19 21:55:20 C 18 10 54.25 +11 24 13.3 q K20
2013-07-20 03:24:46 C 18 10 46.40 +11 24 55.7 u H21
2013-07-20 03:28:56 C 18 10 46.28 +11 24 56.0 u H21
2013-07-20 03:33:03 C 18 10 46.15 +11 24 56.6 u H21
2013-07-20 03:37:10 C 18 10 46.04 +11 24 57.1 u H21
2013-07-20 03:41:17 C 18 10 45.92 +11 24 57.6 u H21
2013-07-20 03:43:25 C 18 10 45.85 +11 24 57.8 u H21
2013-07-20 03:47:25 C 18 10 45.74 +11 24 58.2 u H21
2013-07-20 20:34:14 C 18 10 22.62 +11 26 38.2 q G34
2013-07-20 20:39:41 C 18 10 22.46 +11 26 39.5 q G34
2013-07-20 20:44:56 C 18 10 22.37 +11 26 39.9 q G34
2013-07-24 20:56:16 C 18 08 45.03 +11 29 58.9 a 233
2013-07-24 21:09:13 C 18 08 44.82 +11 29 58.6 a 233
2013-07-24 21:22:14 C 18 08 44.63 +11 29 58.8 a 233
2013-07-24 21:32:29 C 18 08 44.50 +11 29 58.0 q C77
2013-07-24 21:45:35 C 18 08 44.30 +11 29 57.8 q C77
2013-07-24 21:56:35 C 18 08 44.10 +11 29 57.9 q C77
2013-07-24 22:09:40 C 18 08 43.88 +11 29 57.3 q C77
2013-07-28 02:46:03 C 18 08 04.69 +11 26 09.5 r Y00
2013-07-28 03:27:12 C 18 08 04.30 +11 26 05.6 r Y00
2013-07-28 04:11:05 C 18 08 03.91 +11 26 00.8 r Y00
2013-07-28 20:42:16 C 18 08 00.35 +11 24 16.1 q 157
2013-07-28 20:45:23 C 18 08 00.33 +11 24 15.7 q 157
2013-07-28 20:48:29 C 18 08 00.32 +11 24 15.6 q 157
2013-07-28 20:51:35 C 18 08 00.31 +11 24 15.3 q 157
2013-07-28 20:54:41 C 18 08 00.29 +11 24 15.1 q 157
2013-07-28 20:57:46 C 18 08 00.27 +11 24 14.8 q 157
2013-08-02 21:42:49 C 18 08 06.27 +11 07 45.3 q 203
2013-08-02 23:35:09 C 18 08 06.59 +11 07 25.6 q 203
2015-12-09 02:44:29 C 02 23 16.85 +40 26 55.6 q G96
2015-12-09 02:53:17 C 02 23 16.44 +40 26 49.7 q G96
2015-12-09 03:02:05 C 02 23 16.00 +40 26 43.9 q G96
2015-12-09 03:10:53 C 02 23 15.56 +40 26 39.0 q G96
2017-07-16 08:16:27 C 23 44 27.97 +34 49 38.4 u H21
2017-07-16 08:40:51 C 23 44 27.71 +34 49 47.6 u H21
2017-07-16 08:59:40 C 23 44 27.45 +34 49 55.6 u H21
2017-07-24 08:36:26 C 23 41 24.01 +36 01 43.0 u H21
2017-07-24 08:51:22 C 23 41 23.73 +36 01 48.3 u H21
2017-07-24 09:10:23 C 23 41 23.33 +36 01 55.1 u H21
2017-08-13 08:27:47 C 23 26 41.86 +38 05 26.9 u H21
2017-08-13 08:39:10 C 23 26 41.40 +38 05 29.0 u H21
2017-08-13 08:50:51 C 23 26 40.88 +38 05 30.6 u H21
2017-08-15 04:52:26 C 23 24 52.67 +38 11 47.7 u H21
2017-08-15 06:42:43 C 23 24 47.95 +38 12 03.0 u H21
2017-08-27 06:43:01 C 23 11 34.51 +38 27 35.2 u H21
2017-08-27 07:06:52 C 23 11 33.28 +38 27 34.1 u H21
2017-08-27 07:31:15 C 23 11 32.10 +38 27 33.5 u H21
2017-08-31 09:56:56 C 23 06 38.419 +38 22 11.12 L F51
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)