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
2003-01-04 05:09:25 C 03 16 41.34 +30 57 02.1 19.9 c 704
2003-01-20 02:35:10 C 03 07 59.03 +25 28 01.0 19.5 c 644
2003-01-20 03:05:25 C 03 07 58.75 +25 27 37.0 19.5 c 644
2003-01-20 03:36:11 C 03 07 58.59 +25 27 12.8 20.1 c 644
2003-01-28 02:26:39 C 03 08 25.83 +23 05 07.9 20.6 c 644
2003-01-28 02:57:34 C 03 08 26.09 +23 04 46.0 19.9 c 644
2003-01-28 03:28:28 C 03 08 26.32 +23 04 24.3 19.8 c 644
2003-02-01 02:34:55 C 03 09 43.91 +22 00 05.9 20.1 c 704
2003-02-01 02:57:20 C 03 09 44.26 +21 59 50.9 20.2 c 704
2003-02-01 03:19:50 C 03 09 44.61 +21 59 35.4 19.7 c 704
2003-02-01 03:42:04 C 03 09 44.97 +21 59 21.1 19.7 c 704
2003-03-07 02:16:15 C 03 43 53.96 +15 10 45.6 c 711
2003-03-07 02:32:17 C 03 43 54.97 +15 10 39.1 c 711
2003-03-07 02:48:20 C 03 43 55.97 +15 10 32.9 c 711
2003-07-05 08:18:51 C 10 47 22.10 -11 15 43.7 c E14
2003-07-05 08:29:06 C 10 47 25.59 -11 15 44.6 c E14
2003-07-05 08:39:21 C 10 47 29.15 -11 15 46.7 c E14
2003-07-26 20:53:43 C 13 45 47.49 -09 12 00.3 d J87
2003-07-26 21:04:19 C 13 45 50.58 -09 11 55.8 d J87
2009-09-26 12:15:42 C 08 28 51.92 +18 07 23.4 r G96
2009-09-26 12:18:39 C 08 28 52.28 +18 07 20.4 r G96
2009-09-26 12:21:31 C 08 28 52.60 +18 07 17.9 r G96
2009-09-26 12:24:30 C 08 28 52.96 +18 07 15.3 r G96
2010-05-17 10:16:18 C 22 29 39.04 +11 44 48.4 r 703
2010-05-17 10:22:59 C 22 29 39.26 +11 44 54.2 r 703
2010-05-17 10:29:40 C 22 29 39.37 +11 45 00.1 r 703
2010-05-17 10:36:22 C 22 29 39.66 +11 45 05.0 r 703
2010-06-11 02:17:55 S 22 40 07.33 +19 52 14.4 C51
2010-06-11 08:24:42 C 22 40 08.70 +19 56 54.4 o 691
2010-06-11 08:38:57 S 22 40 08.47 +19 57 07.0 C51
2010-06-11 08:51:32 C 22 40 08.76 +19 57 15.1 o 691
2010-06-11 09:18:23 C 22 40 08.79 +19 57 36.0 o 691
2010-06-11 11:49:28 S 22 40 08.99 +19 59 33.3 C51
2010-06-11 13:24:38 S 22 40 09.27 +20 00 45.9 C51
2010-06-11 14:59:59 S 22 40 09.39 +20 01 59.1 C51
2010-06-11 16:35:09 S 22 40 09.68 +20 03 11.5 C51
2010-06-11 18:10:30 S 22 40 09.81 +20 04 25.1 C51
2010-06-11 19:45:40 S 22 40 10.11 +20 05 37.5 C51
2010-06-11 21:21:01 S 22 40 10.31 +20 06 50.7 C51
2010-06-11 22:56:11 S 22 40 10.43 +20 08 04.2 C51
2010-06-12 02:06:43 S 22 40 10.82 +20 10 29.2 C51
2010-06-12 05:17:14 S 22 40 11.15 +20 12 54.7 C51
2010-08-08 12:54:49 C 21 50 11.284 +30 43 15.00 L F51
2010-08-08 13:11:37 C 21 50 10.174 +30 43 14.91 L F51
2010-08-30 08:07:49 C 21 18 43.367 +29 00 33.59 L F51
2010-08-30 08:25:49 C 21 18 42.402 +29 00 26.98 L F51
2011-10-23 02:09:53 C 00 13 38.21 +41 54 49.8 o H21
2011-10-23 02:32:58 C 00 13 37.21 +41 54 39.5 o H21
2011-10-23 02:58:08 C 00 13 36.09 +41 54 30.5 o H21
2012-10-17 14:25:18 c 06 11 07.058 +39 11 31.30 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)