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
2023-08-06 21:58:15 C 20 05 16.06 +22 12 58.0 V 130
2023-08-15 09:12:21 C 19 53 15.708 +21 03 52.78 V T05
2023-08-15 09:17:34 C 19 53 15.451 +21 03 50.08 V T05
2023-08-15 09:28:35 C 19 53 14.837 +21 03 45.83 V T05
2023-08-15 09:44:04 C 19 53 13.975 +21 03 40.57 V T05
2023-08-21 21:43:39 C 19 46 28.44 +19 57 14.8 V Z45
2023-08-21 21:45:43 C 19 46 28.35 +19 57 13.7 V Z45
2023-08-21 21:47:45 C 19 46 28.28 +19 57 13.4 V Z45
2023-08-21 21:49:48 C 19 46 28.22 +19 57 11.6 V Z45
2023-08-21 21:51:52 C 19 46 28.08 +19 57 11.6 V Z45
2023-08-21 22:14:32 C 19 46 27.26 +19 57 01.0 V Z45
2023-08-21 22:16:35 C 19 46 27.21 +19 57 00.4 V Z45
2024-08-16 14:21:01 C 00 40 23.684 +42 01 59.67 X F51
2024-08-16 14:40:20 C 00 40 23.200 +42 02 03.94 X F51
2024-08-16 14:57:23 C 00 40 22.766 +42 02 07.79 X F51
2024-08-30 06:57:34 C 00 30 16.65 +42 58 01.1 V H21
2024-08-30 07:19:18 C 00 30 15.81 +42 58 03.5 V H21
2024-09-01 06:35:58 C 00 28 27.94 +43 02 38.0 V H21
2024-09-01 06:57:39 C 00 28 27.06 +43 02 39.2 V H21
2024-09-09 06:09:31 C 00 20 27.00 +43 10 45.7 V H21
2024-09-09 06:33:25 C 00 20 25.78 +43 10 45.7 V H21
2024-12-20 03:15:29 C 23 28 12.328 +29 00 06.30 V V00
2024-12-20 03:23:34 C 23 28 12.493 +29 00 03.89 V V00
2024-12-20 03:31:38 C 23 28 12.706 +29 00 02.02 V V00
2024-12-20 03:39:42 C 23 28 12.839 +28 59 59.60 V V00
2025-11-27 05:43:18 C 03 26 38.501 +43 18 24.01 V G96
2025-11-27 05:50:40 C 03 26 37.896 +43 18 20.45 V G96
2025-11-27 05:58:03 C 03 26 37.295 +43 18 16.63 V G96
2025-11-27 06:05:28 C 03 26 36.712 +43 18 12.85 V G96
2025-12-08 08:47:49 C 03 07 05.567 +40 37 35.65 V G96
2025-12-08 08:55:15 C 03 07 05.102 +40 37 30.58 V G96
2025-12-08 09:02:41 C 03 07 04.602 +40 37 25.14 V G96
2025-12-08 09:10:05 C 03 07 04.062 +40 37 20.28 V G96
2025-12-09 10:33:46 C 03 05 22.939 +40 19 55.05 X F52
2025-12-09 10:35:37 C 03 05 22.812 +40 19 53.71 X F52
2025-12-09 10:50:34 C 03 05 21.809 +40 19 43.30 X F52
2025-12-09 10:52:25 C 03 05 21.689 +40 19 41.92 X F52
2025-12-09 11:07:17 C 03 05 20.682 +40 19 31.37 X F52
2025-12-09 11:09:12 C 03 05 20.558 +40 19 30.13 X F52
2025-12-09 11:24:13 C 03 05 19.551 +40 19 19.54 X F52
2025-12-09 11:26:04 C 03 05 19.429 +40 19 18.11 X F52
2025-12-14 12:50:00 C 02 57 49.86 +38 52 04.4 V D29
2025-12-14 13:10:22 C 02 57 48.67 +38 51 49.1 V D29
2025-12-14 13:30:44 C 02 57 47.43 +38 51 34.0 V D29
2025-12-18 04:37:40 C 02 53 03.005 +37 46 05.92 V G96
2025-12-18 04:45:10 C 02 53 02.612 +37 46 00.37 V G96
2025-12-18 04:52:43 C 02 53 02.227 +37 45 54.47 V G96
2025-12-18 05:00:11 C 02 53 01.802 +37 45 48.42 V G96
2025-12-24 05:15:00 C 02 46 29.387 +35 54 53.02 X F52
2025-12-24 05:31:02 C 02 46 28.721 +35 54 40.92 X F52
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)