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
2017-08-31 10:12:07 C 23 06 37.648 +38 22 10.08 L F51
2017-08-31 10:27:16 C 23 06 36.865 +38 22 08.74 L F51
2017-09-21 03:20:10 C 22 42 11.25 +36 33 27.6 u H21
2017-09-21 03:43:46 C 22 42 10.14 +36 33 20.0 u H21
2017-09-21 04:06:04 C 22 42 09.09 +36 33 12.6 u H21
2017-10-01 03:17:19 C 22 32 19.15 +35 00 35.0 u H21
2017-10-01 03:27:11 C 22 32 18.77 +35 00 30.5 u H21
2017-10-01 03:43:26 C 22 32 18.17 +35 00 23.6 u H21
2019-01-04 00:27:40 C 01 02 46.64 +32 55 25.8 u H21
2019-01-04 00:50:08 C 01 02 46.96 +32 55 17.5 u H21
2019-01-04 01:10:19 C 01 02 47.27 +32 55 08.6 u H21
2020-04-28 11:01:12 C 22 25 10.79 +10 02 11.9 V G96
2020-04-28 11:07:22 C 22 25 11.15 +10 02 16.1 V G96
2020-04-28 11:13:31 C 22 25 11.39 +10 02 21.4 V G96
2020-04-28 11:19:43 C 22 25 11.63 +10 02 26.2 V G96
2020-07-08 12:44:06 C 22 51 17.216 +29 21 21.72 U F51
2020-07-08 12:53:29 C 22 51 16.968 +29 21 26.21 U F51
2020-07-08 13:02:48 C 22 51 16.741 +29 21 31.22 U F51
2020-07-08 13:12:09 C 22 51 16.495 +29 21 35.83 U F51
2020-08-12 11:21:57 C 22 14 21.773 +33 12 16.43 U F52
2020-08-12 11:38:04 C 22 14 20.817 +33 12 16.47 U F52
2020-08-12 11:54:10 C 22 14 19.875 +33 12 16.62 U F52
2020-08-28 05:09:42 C 21 52 33.83 +32 23 32.4 V G96
2020-08-28 05:16:41 C 21 52 33.44 +32 23 30.8 V G96
2020-08-28 05:23:39 C 21 52 33.03 +32 23 29.4 V G96
2020-09-25 04:02:40 C 21 24 08.26 +27 53 08.4 U I41
2020-09-25 04:32:02 C 21 24 07.43 +27 52 53.9 U I41
2020-09-26 03:37:56 C 21 23 32.06 +27 41 29.2 U I41
2020-09-26 04:04:11 C 21 23 31.37 +27 41 16.2 U I41
2020-10-13 03:16:21 C 21 17 38.69 +24 21 00.5 V G96
2020-10-13 03:23:45 C 21 17 38.65 +24 20 56.7 V G96
2020-10-13 03:31:09 C 21 17 38.59 +24 20 53.0 V G96
2020-10-13 03:38:33 C 21 17 38.58 +24 20 50.1 V G96
2021-11-04 04:13:00 C 00 21 42.71 +41 09 14.9 V G96
2021-11-04 04:28:10 C 00 21 42.16 +41 09 07.1 V G96
2021-11-04 04:35:50 C 00 21 41.85 +41 09 03.6 V G96
2022-11-05 11:16:54 C 07 33 32.018 +29 17 12.23 V G96
2022-11-05 11:24:19 C 07 33 32.310 +29 17 07.87 V G96
2022-11-05 11:31:44 C 07 33 32.602 +29 17 05.06 V G96
2022-11-05 11:51:22 C 07 33 33.347 +29 16 55.24 V G96
2022-11-16 14:41:47 C 07 42 35.820 +26 46 27.73 V T08
2022-11-16 14:47:46 C 07 42 35.954 +26 46 23.63 V T08
2022-11-16 14:55:50 C 07 42 36.154 +26 46 18.34 V T08
2022-11-16 15:20:11 C 07 42 36.718 +26 46 02.96 V T08
2022-11-17 07:22:52 C 07 43 02.953 +26 35 17.88 V 703
2022-11-17 07:30:16 C 07 43 02.989 +26 35 12.23 V 703
2022-11-17 07:37:40 C 07 43 03.230 +26 35 08.02 V 703
2022-11-17 07:45:03 C 07 43 03.356 +26 35 03.44 V 703
2022-11-19 04:15:51 C 07 44 08.94 +26 04 15.9 V J43
2022-11-19 04:29:03 C 07 44 09.21 +26 04 06.5 V J43
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)