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
2023-06-02 10:56:17 C 22 08 16.454 +04 18 32.00 V 703
2023-06-02 11:00:03 C 22 08 16.271 +04 18 37.62 V 703
2023-06-13 08:09:57 C 21 56 00.418 +10 38 08.23 V W68
2023-06-13 08:17:48 C 21 55 59.930 +10 38 19.18 V W68
2023-06-13 08:36:13 C 21 55 58.814 +10 38 43.94 V W68
2023-06-16 02:29:12 C 21 52 00.00 +12 05 26.1 X C95
2023-06-16 02:38:54 C 21 51 59.34 +12 05 38.6 X C95
2023-06-16 02:48:13 C 21 51 58.74 +12 05 51.0 X C95
2023-06-16 07:37:48 C 21 51 40.454 +12 12 17.03 V W68
2023-06-16 07:41:44 C 21 51 40.198 +12 12 22.21 V W68
2023-06-16 07:55:36 C 21 51 39.302 +12 12 39.85 V W68
2023-06-16 08:02:55 C 21 51 38.798 +12 12 48.74 V W68
2023-06-20 07:41:10 C 21 45 11.264 +14 10 44.62 V 703
2023-06-20 07:46:57 C 21 45 10.818 +14 10 51.10 V 703
2023-06-20 07:52:43 C 21 45 10.408 +14 10 58.51 V 703
2023-06-20 07:58:29 C 21 45 09.997 +14 11 05.42 V 703
2023-06-20 12:05:38 C 21 44 52.173 +14 16 00.10 X F52
2023-06-20 12:07:28 C 21 44 52.036 +14 16 02.28 X F52
2023-06-20 12:23:10 C 21 44 50.862 +14 16 20.94 X F52
2023-06-20 12:37:00 C 21 44 49.830 +14 16 37.27 X F52
2023-06-20 12:38:50 C 21 44 49.692 +14 16 39.45 X F52
2023-06-20 12:42:24 C 21 44 49.433 +14 16 43.93 V T05
2023-06-20 12:46:19 C 21 44 49.133 +14 16 48.29 V T05
2023-06-20 12:50:13 C 21 44 48.842 +14 16 52.86 V T05
2023-06-20 12:52:41 C 21 44 48.656 +14 16 55.87 X F52
2023-06-20 12:54:33 C 21 44 48.516 +14 16 58.09 X F52
2023-06-20 13:23:54 C 21 44 46.308 +14 17 33.00 V T05
2023-06-22 08:36:49 C 21 41 35.650 +15 07 23.88 V G96
2023-06-22 08:44:22 C 21 41 35.070 +15 07 32.41 V G96
2023-06-22 08:51:55 C 21 41 34.472 +15 07 41.02 V G96
2023-06-22 08:59:29 C 21 41 33.889 +15 07 49.55 V G96
2023-06-22 09:11:11 C 21 41 32.942 +15 08 02.90 V 703
2023-06-22 09:18:48 C 21 41 32.370 +15 08 11.26 V 703
2023-06-22 09:26:25 C 21 41 31.798 +15 08 20.33 V 703
2023-06-22 09:34:02 C 21 41 31.168 +15 08 28.82 V 703
2023-06-26 11:20:41 C 21 33 48.151 +16 53 11.78 X F52
2023-06-26 11:54:13 C 21 33 45.296 +16 53 45.89 X F52
2023-06-26 12:11:02 C 21 33 43.861 +16 54 02.96 X F52
2023-06-28 12:07:50 C 21 29 42.149 +17 40 57.97 V T05
2023-06-28 12:12:23 C 21 29 41.741 +17 41 02.08 V T05
2023-06-28 12:20:39 C 21 29 41.006 +17 41 10.21 V T05
2023-06-28 12:29:30 C 21 29 40.226 +17 41 18.24 V T05
2023-06-30 11:44:28 C 21 25 33.842 +18 24 32.51 V T05
2023-06-30 11:47:05 C 21 25 33.581 +18 24 34.96 V T05
2023-06-30 12:14:59 C 21 25 31.032 +18 24 59.76 V T05
2023-06-30 12:43:45 C 21 25 28.414 +18 25 25.50 V T05
2023-07-01 06:06:47 C 21 23 56.234 +18 40 29.10 V 703
2023-07-01 06:16:13 C 21 23 55.388 +18 40 37.20 V 703
2023-07-01 06:25:37 C 21 23 54.524 +18 40 45.44 V 703
2023-07-01 06:35:02 C 21 23 53.646 +18 40 53.83 V 703
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)