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
2023-05-02 03:13:22 C 22 19 42.962 -17 36 20.41 V M22
2023-05-02 03:20:55 C 22 19 42.912 -17 36 06.66 V M22
2023-05-03 08:35:12 C 22 19 38.474 -16 39 37.12 V W68
2023-05-03 08:39:19 C 22 19 38.419 -16 39 29.70 V W68
2023-05-03 08:43:18 C 22 19 38.434 -16 39 21.56 V W68
2023-05-03 08:57:58 C 22 19 38.422 -16 38 53.34 V W68
2023-05-04 03:40:55 C 22 19 35.100 -16 02 57.80 V M22
2023-05-04 03:46:09 C 22 19 35.098 -16 02 47.65 V M22
2023-05-04 03:53:49 C 22 19 35.054 -16 02 33.29 V M22
2023-05-04 04:01:11 C 22 19 35.018 -16 02 19.00 V M22
2023-05-04 09:40:42 C 22 19 34.066 -15 51 30.82 V W68
2023-05-04 09:47:09 C 22 19 34.061 -15 51 16.74 V W68
2023-05-04 09:51:53 C 22 19 34.037 -15 51 07.81 V W68
2023-05-04 10:05:09 C 22 19 33.967 -15 50 42.36 V W68
2023-05-05 09:34:49 C 22 19 29.618 -15 05 56.22 V W68
2023-05-05 09:39:35 C 22 19 29.578 -15 05 46.54 V W68
2023-05-05 09:54:04 C 22 19 29.510 -15 05 19.18 V W68
2023-05-05 10:06:06 C 22 19 29.465 -15 04 56.82 V W68
2023-05-05 10:18:00 C 22 19 29.359 -15 04 33.46 V W68
2023-05-08 03:24:41 C 22 19 14.280 -13 01 53.18 V M22
2023-05-08 04:01:40 C 22 19 14.002 -13 00 44.57 V M22
2023-05-08 04:15:06 C 22 19 13.901 -13 00 19.73 V M22
2023-05-08 04:18:19 C 22 19 13.867 -13 00 13.32 V M22
2023-05-25 02:42:08 C 22 14 11.911 -01 02 31.56 V M22
2023-05-25 02:45:32 C 22 14 11.813 -01 02 25.26 V M22
2023-05-25 02:56:50 C 22 14 11.518 -01 02 06.29 V M22
2023-05-25 03:27:27 C 22 14 10.702 -01 01 15.92 V M22
2023-05-25 10:52:30 C 22 14 00.611 -00 49 10.20 V 703
2023-05-25 10:57:15 C 22 14 00.503 -00 49 02.21 V 703
2023-05-25 11:02:01 C 22 14 00.395 -00 48 54.58 V 703
2023-05-25 11:06:45 C 22 14 00.269 -00 48 46.40 V 703
2023-05-26 14:53:18 S 22 13 19.01 -00 02 53.2 L C51
2023-05-26 18:00:20 S 22 13 14.26 +00 02 13.4 L C51
2023-05-27 00:14:02 S 22 13 04.71 +00 12 26.0 L C51
2023-05-27 01:47:33 S 22 13 02.30 +00 14 58.2 L C51
2023-05-27 04:54:24 S 22 12 57.44 +00 20 04.1 L C51
2023-05-27 04:54:35 S 22 12 57.42 +00 20 04.6 L C51
2023-05-27 06:27:55 S 22 12 54.96 +00 22 36.6 L C51
2023-05-27 11:08:17 S 22 12 47.58 +00 30 14.1 L C51
2023-05-27 14:15:19 S 22 12 42.60 +00 35 19.4 L C51
2023-05-28 02:47:23 C 22 12 22.862 +00 55 48.79 V M22
2023-05-28 02:57:25 C 22 12 22.562 +00 56 05.06 V M22
2023-05-28 03:02:06 C 22 12 22.404 +00 56 12.88 V M22
2023-05-28 03:17:30 C 22 12 21.955 +00 56 37.57 V M22
2023-05-29 09:58:59 C 22 11 29.490 +01 45 53.93 V 703
2023-05-29 10:06:11 C 22 11 29.252 +01 46 05.20 V 703
2023-05-29 10:13:23 C 22 11 29.036 +01 46 16.64 V 703
2023-05-29 10:20:35 C 22 11 28.781 +01 46 28.49 V 703
2023-06-02 10:48:45 C 22 08 16.742 +04 18 20.23 V 703
2023-06-02 10:52:31 C 22 08 16.566 +04 18 25.92 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)