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
2022-12-14 08:17:45 C 07 43 26.472 +14 39 41.72 V W68
2022-12-15 13:17:26 C 07 42 26.285 +13 47 17.99 V T05
2022-12-15 13:23:18 C 07 42 26.035 +13 47 07.15 V T05
2022-12-15 14:06:24 C 07 42 24.300 +13 45 47.30 V T05
2022-12-15 14:26:47 C 07 42 23.467 +13 45 09.40 V T05
2022-12-17 09:29:08 C 07 40 40.937 +12 22 35.94 V 703
2022-12-17 09:36:47 C 07 40 40.577 +12 22 21.00 V 703
2022-12-17 09:44:24 C 07 40 40.210 +12 22 05.63 V 703
2022-12-17 09:52:01 C 07 40 39.857 +12 21 50.29 V 703
2022-12-17 10:26:57 C 07 40 38.226 +12 20 41.03 V G96
2022-12-17 10:34:21 C 07 40 37.880 +12 20 26.09 V G96
2022-12-17 10:49:07 C 07 40 37.182 +12 19 56.53 V G96
2022-12-17 16:48:54 C 07 40 22.02 +12 07 54.2 V D29
2022-12-17 17:29:38 C 07 40 20.15 +12 06 34.1 V D29
2022-12-18 17:00:43 C 07 39 15.74 +11 18 18.1 q O51
2022-12-18 17:03:17 C 07 39 15.64 +11 18 12.9 q O51
2022-12-18 17:05:52 C 07 39 15.49 +11 18 07.6 q O51
2022-12-19 09:35:26 C 07 38 26.308 +10 42 58.18 V 703
2022-12-19 09:43:01 C 07 38 25.912 +10 42 41.94 V 703
2022-12-19 09:50:39 C 07 38 25.490 +10 42 25.56 V 703
2022-12-19 09:58:14 C 07 38 25.084 +10 42 09.07 V 703
2022-12-19 12:31:59 C 07 38 16.775 +10 36 35.75 V G96
2022-12-19 12:39:23 C 07 38 16.375 +10 36 19.26 V G96
2022-12-19 12:46:47 C 07 38 15.986 +10 36 03.42 V G96
2022-12-19 12:54:12 C 07 38 15.590 +10 35 47.40 V G96
2022-12-19 17:18:23 C 07 38 03.33 +10 26 18.2 q O51
2022-12-19 17:22:31 C 07 38 03.11 +10 26 09.4 q O51
2022-12-19 17:26:46 C 07 38 02.87 +10 25 59.9 q O51
2022-12-20 01:24:48 C 07 37 37.222 +10 08 41.06 V M22
2022-12-20 01:48:54 C 07 37 35.842 +10 07 47.50 V M22
2022-12-20 01:56:53 C 07 37 35.400 +10 07 29.82 V M22
2022-12-20 16:18:52 C 07 36 49.644 +09 35 13.38 V P07
2022-12-20 17:19:10 C 07 36 46.022 +09 32 56.44 V P07
2022-12-20 18:14:38 C 07 36 42.722 +09 30 50.33 V P07
2022-12-20 18:59:48 C 07 36 40.006 +09 29 06.97 V P07
2022-12-20 18:59:56 C 07 36 39.986 +09 29 06.79 V P07
2022-12-21 09:45:13 C 07 35 49.867 +08 54 45.01 V U68
2022-12-21 09:50:02 C 07 35 49.563 +08 54 33.79 V U68
2022-12-21 10:05:12 C 07 35 48.618 +08 53 58.33 V U68
2022-12-21 10:10:01 C 07 35 48.328 +08 53 47.08 V U68
2022-12-22 06:27:35 C 07 34 35.522 +08 05 47.90 V W68
2022-12-22 06:51:58 C 07 34 33.934 +08 04 48.86 V W68
2022-12-22 06:56:31 C 07 34 33.622 +08 04 37.85 V W68
2022-12-22 07:10:20 C 07 34 32.707 +08 04 04.19 V W68
2022-12-24 17:25:34 C 07 30 39.54 +05 35 30.4 V D29
2022-12-24 17:45:56 C 07 30 37.98 +05 34 35.9 V D29
2022-12-24 18:06:18 C 07 30 36.42 +05 33 41.5 V D29
2022-12-26 04:01:57 C 07 28 04.078 +04 00 51.55 V W68
2022-12-26 04:45:00 C 07 28 00.497 +03 58 49.98 V W68
2022-12-26 04:52:53 C 07 27 59.844 +03 58 27.80 V W68
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)