189173 (2002 XY4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5701787110 ± 3.79e-08
Semi-major axis (a)1.8439640462 AU ± 8.07e-10
Inclination (i)43.07745727° ± 1.31e-05
Long. of Asc. Node (Ω)268.89582772° ± 2.08e-06
Arg. of Perihelion (ω)273.71704757° ± 7.48e-06
Mean Anomaly (M)27.83667638° ± 3.18e-06
Mean Motion (n)0.3936258422°/day ± 2.58e-10
Perihelion dist (q)0.79257500 AU ± 6.98e-08
Aphelion dist (Q)2.89535309 AU ± 6.98e-08
Orbital Period2.50396742 yr ± 1.64e-09
Physical Parameters
H (abs. magnitude)18.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.330″
Uncertainty0
Orbit TypeApollo
MOID0.140238 AU
Observations Used444
Oppositions13
Arc Total2002-2023
First Observation Used2002-12-05
Last Observation Used2023-07-26
Observations (459)
Date Type RA Dec Mag Band Observatory
2023-01-02 00:59:35 C 04 22 04.54 +03 44 05.0 V W46
2023-01-08 20:40:58 C 03 48 35.441 -11 49 20.50 V M22
2023-01-08 20:45:31 C 03 48 34.577 -11 49 44.98 V M22
2023-01-08 20:54:15 C 03 48 32.851 -11 50 29.87 V M22
2023-01-08 21:10:32 C 03 48 29.676 -11 51 55.40 V M22
2023-01-09 03:11:33 C 03 47 21.782 -12 23 20.08 V W68
2023-01-09 03:16:22 C 03 47 20.882 -12 23 45.02 V W68
2023-01-09 03:28:08 C 03 47 18.586 -12 24 46.12 V W68
2023-01-09 03:46:10 C 03 47 15.091 -12 26 19.68 V W68
2023-01-09 22:49:33 C 03 43 43.42 -14 04 21.9 V Z45
2023-01-09 22:52:13 C 03 43 42.90 -14 04 35.4 V Z45
2023-01-09 22:54:52 C 03 43 42.44 -14 04 49.1 V Z45
2023-01-09 22:57:31 C 03 43 41.94 -14 05 02.3 V Z45
2023-01-09 23:00:28 C 03 43 41.18 -14 05 19.2 V Z45
2023-01-09 23:02:51 C 03 43 40.92 -14 05 28.7 V Z45
2023-01-09 23:05:30 C 03 43 40.38 -14 05 42.7 V Z45
2023-01-09 23:08:11 C 03 43 39.89 -14 05 55.6 V Z45
2023-01-09 23:10:50 C 03 43 39.37 -14 06 08.3 V Z45
2023-01-09 23:13:45 C 03 43 38.82 -14 06 23.5 V Z45
2023-01-10 19:51:07 C 03 39 55.183 -15 48 09.29 V M22
2023-01-10 19:57:47 C 03 39 53.990 -15 48 42.30 V M22
2023-01-10 20:06:14 C 03 39 52.404 -15 49 23.63 V M22
2023-01-10 20:27:45 C 03 39 48.420 -15 51 08.14 V M22
2023-01-13 01:54:05 C 03 30 32.410 -19 59 47.40 V W68
2023-01-13 02:05:18 C 03 30 30.454 -20 00 36.76 V W68
2023-01-13 02:09:12 C 03 30 29.770 -20 00 54.61 V W68
2023-01-13 02:24:16 C 03 30 27.170 -20 02 00.56 V W68
2023-01-14 03:10:32 C 03 26 20.950 -21 49 11.68 V W68
2023-01-14 03:14:26 C 03 26 20.273 -21 49 27.37 V W68
2023-01-14 03:25:47 C 03 26 18.422 -21 50 15.86 V W68
2023-01-14 03:56:06 C 03 26 13.279 -21 52 22.04 V W68
2023-01-14 20:40:23 C 03 23 31.778 -23 01 54.19 V M22
2023-01-14 20:44:57 C 03 23 30.996 -23 02 13.16 V M22
2023-01-14 20:55:29 C 03 23 29.285 -23 02 55.72 V M22
2023-01-14 21:10:02 C 03 23 26.890 -23 03 54.97 V M22
2023-01-15 19:35:03 C 03 19 55.807 -24 33 27.18 V M22
2023-01-15 19:39:36 C 03 19 55.087 -24 33 44.53 V M22
2023-01-15 19:47:07 C 03 19 53.882 -24 34 15.49 V M22
2023-01-15 20:07:10 C 03 19 50.676 -24 35 32.78 V M22
2023-01-18 01:21:32 C 03 11 51.046 -27 52 33.74 V W68
2023-01-18 01:26:43 C 03 11 50.254 -27 52 51.78 V W68
2023-01-18 01:34:41 C 03 11 49.073 -27 53 19.64 V W68
2023-01-18 01:49:18 C 03 11 46.865 -27 54 10.01 V W68
2023-01-19 20:12:53 C 03 05 45.869 -30 16 24.31 V M22
2023-01-19 20:17:28 C 03 05 45.250 -30 16 38.93 V M22
2023-01-19 20:24:53 C 03 05 44.138 -30 17 02.54 V M22
2023-01-19 20:48:44 C 03 05 40.733 -30 18 18.90 V M22
2023-01-21 01:00:55 C 03 01 51.053 -31 46 22.94 V W68
2023-01-21 01:08:04 C 03 01 50.026 -31 46 44.11 V W68
2023-01-21 01:12:38 C 03 01 49.382 -31 46 57.86 V W68