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
2022-12-26 06:39:21 C 07 27 50.952 +03 53 26.74 V W68
2022-12-26 07:08:33 C 07 27 48.506 +03 52 04.01 V W68
2022-12-27 02:37:16 C 07 26 15.02 +02 55 58.3 q 834
2022-12-27 03:09:31 C 07 26 12.19 +02 54 24.1 q 834
2022-12-28 00:41:30 C 07 24 21.869 +01 50 21.23 V M22
2022-12-28 00:45:40 C 07 24 21.482 +01 50 08.74 V M22
2022-12-28 01:36:09 C 07 24 16.855 +01 47 35.77 V M22
2022-12-28 02:16:59 C 07 24 13.126 +01 45 31.97 V M22
2022-12-31 20:59:19 C 07 15 29.542 -03 08 40.52 V M22
2022-12-31 21:01:55 C 07 15 29.258 -03 08 49.49 V M22
2022-12-31 21:12:13 C 07 15 28.116 -03 09 25.27 V M22
2022-12-31 21:34:25 C 07 15 25.654 -03 10 42.10 V M22
2023-01-03 03:38:09 C 07 09 22.277 -06 24 19.12 V W68
2023-01-03 03:40:44 C 07 09 21.955 -06 24 28.69 V W68
2023-01-03 03:47:14 C 07 09 21.158 -06 24 52.74 V W68
2023-01-03 03:56:58 C 07 09 19.949 -06 25 28.85 V W68
2023-01-05 22:21:23 C 07 00 58.65 -10 41 07.7 V G17
2023-01-05 22:25:43 C 07 00 58.03 -10 41 25.2 V G17
2023-01-05 22:30:03 C 07 00 57.45 -10 41 42.2 V G17
2023-01-06 18:53:10 C 06 58 11.762 -12 03 00.36 Z L68
2023-01-06 19:05:37 C 06 58 09.996 -12 03 50.72 Z L68
2023-01-06 19:18:06 C 06 58 08.210 -12 04 41.56 Z L68
2023-01-07 21:37:03 C 06 54 23.479 -13 52 28.27 V M22
2023-01-07 21:45:29 C 06 54 22.200 -13 53 03.08 V M22
2023-01-07 22:12:41 C 06 54 18.082 -13 54 55.69 V M22
2023-01-08 22:55:57 C 06 50 37.644 -15 38 07.12 V M22
2023-01-08 23:00:30 C 06 50 36.919 -15 38 26.23 V M22
2023-01-08 23:06:59 C 06 50 35.902 -15 38 53.48 V M22
2023-01-08 23:08:17 C 06 50 35.686 -15 38 58.99 V M22
2023-01-08 23:11:32 C 06 50 35.182 -15 39 12.60 V M22
2023-01-08 23:19:22 C 06 50 33.946 -15 39 45.50 V M22
2023-01-08 23:22:41 C 06 50 33.420 -15 39 59.40 V M22
2023-01-09 00:05:39 C 06 50 26.647 -15 43 00.08 V M22
2023-01-09 04:45:23 C 06 49 44.544 -16 02 41.17 V W68
2023-01-09 04:46:02 C 06 49 44.424 -16 02 43.94 V W68
2023-01-09 04:49:55 C 06 49 43.841 -16 03 00.29 V W68
2023-01-09 04:50:34 C 06 49 43.706 -16 03 03.02 V W68
2023-01-09 04:58:37 C 06 49 42.415 -16 03 37.08 V W68
2023-01-09 05:02:26 C 06 49 41.834 -16 03 53.28 V W68
2023-01-09 05:21:03 C 06 49 38.834 -16 05 11.65 V W68
2023-01-09 05:22:33 C 06 49 38.633 -16 05 18.38 V W68
2023-01-10 05:17:22 C 06 45 54.478 -17 46 59.77 V W68
2023-01-10 05:29:14 C 06 45 52.507 -17 47 50.35 V W68
2023-01-10 05:33:23 C 06 45 51.821 -17 48 08.14 V W68
2023-01-10 21:27:50 C 06 43 18.562 -18 56 26.12 V M22
2023-01-10 21:30:26 C 06 43 18.118 -18 56 37.32 V M22
2023-01-10 21:34:58 C 06 43 17.347 -18 56 56.94 V M22
2023-01-10 21:42:46 C 06 43 16.020 -18 57 30.49 V M22
2023-01-12 01:26:36 C 06 38 38.71 -20 57 45.2 q X33
2023-01-12 01:29:43 C 06 38 38.15 -20 57 58.8 q X33
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)