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
2023-02-02 19:29:48 C 04 33 51.269 -52 58 01.27 V M22
2023-02-02 19:34:24 C 04 33 49.838 -52 58 12.47 V M22
2023-02-02 19:42:57 C 04 33 47.155 -52 58 33.17 V M22
2023-02-02 19:58:03 C 04 33 42.437 -52 59 09.53 V M22
2023-02-05 01:31:52 C 04 17 08.542 -55 01 59.12 V W68
2023-02-05 01:36:24 C 04 17 07.082 -55 02 08.77 V W68
2023-02-05 01:44:11 C 04 17 04.534 -55 02 25.26 V W68
2023-02-05 02:01:08 C 04 16 59.040 -55 03 01.26 V W68
2023-02-06 20:38:04 C 04 03 20.784 -56 29 49.13 V M22
2023-02-06 20:42:38 C 04 03 19.267 -56 29 57.73 V M22
2023-02-06 20:50:39 C 04 03 16.608 -56 30 12.71 V M22
2023-02-06 21:05:14 C 04 03 11.782 -56 30 39.89 V M22
2023-02-09 01:11:58 C 03 46 01.567 -58 04 19.13 V W68
2023-02-09 01:16:30 C 03 45 59.969 -58 04 26.54 V W68
2023-02-09 01:25:37 C 03 45 56.849 -58 04 41.52 V W68
2023-02-09 01:45:25 C 03 45 50.030 -58 05 13.31 V W68
2023-02-13 00:42:26 C 03 13 12.466 -60 21 26.50 V W68
2023-02-13 00:47:45 C 03 13 10.582 -60 21 32.69 V W68
2023-02-13 00:59:34 C 03 13 06.331 -60 21 46.30 V W68
2023-02-13 01:10:41 C 03 13 02.306 -60 21 59.00 V W68
2023-02-15 18:30:27 C 02 49 46.582 -61 31 01.81 V M22
2023-02-15 18:35:03 C 02 49 44.890 -61 31 05.34 V M22
2023-02-15 18:46:11 C 02 49 40.802 -61 31 15.06 V M22
2023-02-15 19:17:43 C 02 49 29.213 -61 31 42.20 V M22
2023-02-17 00:27:20 C 02 38 56.978 -61 56 11.65 V W68
2023-02-17 00:31:55 C 02 38 55.308 -61 56 14.82 V W68
2023-02-17 00:39:44 C 02 38 52.397 -61 56 20.22 V W68
2023-02-17 00:59:21 C 02 38 45.154 -61 56 34.55 V W68
2023-02-23 19:14:32 C 01 39 37.930 -63 03 26.96 V M22
2023-02-23 19:18:36 C 01 39 36.420 -63 03 26.82 V M22
2023-02-23 19:26:35 C 01 39 33.562 -63 03 27.22 V M22
2023-02-23 19:44:39 C 01 39 27.007 -63 03 26.89 V M22
2023-02-25 01:03:08 C 01 28 56.071 -63 03 21.92 V W68
2023-02-25 01:07:46 C 01 28 54.451 -63 03 21.67 V W68
2023-02-25 01:36:27 C 01 28 44.172 -63 03 17.75 V W68
2023-02-25 02:01:11 C 01 28 35.338 -63 03 14.33 V W68
2023-04-12 08:56:07 C 22 23 23.256 -33 48 07.81 V W68
2023-04-12 09:00:53 C 22 23 23.112 -33 47 58.96 V W68
2023-04-12 09:30:40 C 22 23 22.469 -33 46 55.09 V W68
2023-04-12 09:42:03 C 22 23 22.176 -33 46 31.48 V W68
2023-04-18 09:05:53 C 22 21 12.754 -28 42 45.65 V W68
2023-04-18 09:10:36 C 22 21 12.718 -28 42 36.29 V W68
2023-04-18 09:37:46 C 22 21 12.365 -28 41 40.27 V W68
2023-04-18 09:56:32 C 22 21 12.166 -28 41 00.85 V W68
2023-04-24 09:40:07 C 22 20 14.801 -23 44 38.58 V W68
2023-04-24 09:46:14 C 22 20 14.753 -23 44 26.05 V W68
2023-04-24 09:53:35 C 22 20 14.698 -23 44 11.44 V W68
2023-04-24 10:12:48 C 22 20 14.587 -23 43 32.56 V W68
2023-05-02 03:03:53 C 22 19 42.991 -17 36 38.92 V M22
2023-05-02 03:08:35 C 22 19 42.977 -17 36 30.17 V M22
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)