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
2002-12-05 08:48:27 C 07 46 20.28 +32 14 01.6 19.3 c 704
2002-12-05 09:10:37 C 07 46 19.04 +32 13 12.7 19.2 c 704
2002-12-05 09:32:30 C 07 46 17.87 +32 12 24.1 19.1 c 704
2002-12-05 09:54:25 C 07 46 16.61 +32 11 34.7 19.4 c 704
2002-12-05 10:16:20 C 07 46 15.41 +32 10 46.2 19.6 c 704
2002-12-06 06:27:30 C 07 45 13.00 +31 24 18.9 c 649
2002-12-06 06:31:21 C 07 45 12.78 +31 24 09.7 c 649
2002-12-06 07:03:24 C 07 45 10.88 +31 22 54.8 c 649
2002-12-06 07:08:36 C 07 45 10.61 +31 22 42.5 c 649
2002-12-06 08:06:50 C 07 45 07.15 +31 20 27.5 m 446
2002-12-06 08:19:58 C 07 45 06.32 +31 19 56.0 m 446
2002-12-06 08:33:14 C 07 45 05.48 +31 19 23.8 m 446
2002-12-06 08:44:29 C 07 45 05.11 +31 18 58.2 18.9 c 704
2002-12-06 08:47:43 C 07 45 04.67 +31 18 50.6 m 446
2002-12-06 09:00:58 C 07 45 03.78 +31 18 19.0 m 446
2002-12-06 09:06:28 C 07 45 03.75 +31 18 05.4 19.1 c 704
2002-12-06 09:14:04 C 07 45 03.07 +31 17 48.3 m 446
2002-12-06 09:28:13 C 07 45 02.43 +31 17 13.6 19.0 c 704
2002-12-06 10:11:54 C 07 44 59.75 +31 15 29.4 19.0 c 704
2002-12-06 10:20:20 C 07 44 59.33 +31 15 08.4 c 926
2002-12-06 10:22:48 C 07 44 59.25 +31 15 04.5 c 926
2002-12-06 10:25:19 C 07 44 58.99 +31 14 56.7 c 926
2002-12-06 11:40:18 C 07 44 54.14 +31 11 51.8 d 734
2002-12-06 11:45:08 C 07 44 53.94 +31 11 41.9 d 734
2002-12-06 11:50:07 C 07 44 53.66 +31 11 28.8 d 734
2002-12-07 08:50:04 C 07 43 41.22 +30 19 35.6 18.7 c 704
2002-12-07 09:11:51 C 07 43 39.80 +30 18 39.8 19.5 c 704
2002-12-07 09:33:40 C 07 43 38.34 +30 17 44.6 19.0 c 704
2002-12-07 09:55:35 C 07 43 36.81 +30 16 48.3 19.1 c 704
2002-12-07 10:17:16 C 07 43 35.38 +30 15 52.7 19.3 c 704
2002-12-10 05:38:32 C 07 38 54.62 +27 05 01.6 c 858
2002-12-10 05:43:22 C 07 38 54.19 +27 04 47.6 c 858
2002-12-10 05:48:09 C 07 38 53.82 +27 04 32.7 c 858
2002-12-10 08:06:39 C 07 38 41.93 +26 57 20.1 c 649
2002-12-10 08:09:24 C 07 38 41.70 +26 57 11.6 c 649
2002-12-10 08:12:09 C 07 38 41.47 +26 57 02.8 c 649
2002-12-10 10:17:04 C 07 38 31.13 +26 50 31.0 c 926
2002-12-10 10:19:05 C 07 38 30.97 +26 50 23.8 c 926
2002-12-10 10:21:06 C 07 38 30.80 +26 50 17.3 c 926
2002-12-11 09:03:41 C 07 36 37.67 +25 35 44.6 18.1 c 704
2002-12-11 09:25:38 C 07 36 35.67 +25 34 30.5 18.7 c 704
2002-12-11 09:47:35 C 07 36 33.62 +25 33 16.0 18.6 c 704
2002-12-12 09:46:38 C 07 34 23.75 +24 08 32.4 18.3 c 704
2002-12-12 10:01:43 C 07 34 22.42 +24 07 37.5 c 670
2002-12-12 10:09:23 C 07 34 21.46 +24 07 08.5 18.1 c 704
2002-12-12 10:31:35 C 07 34 19.20 +24 05 46.7 18.3 c 704
2002-12-12 11:30:52 C 07 34 13.56 +24 02 10.3 c 670
2002-12-12 12:57:55 C 07 34 04.76 +23 56 47.3 c 926
2002-12-12 12:59:22 C 07 34 04.53 +23 56 41.2 c 926
2002-12-12 13:00:50 C 07 34 04.39 +23 56 35.4 c 926