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
2022-12-02 09:26:19 C 06 43 42.211 +46 11 10.14 V 703
2022-12-02 13:24:53 C 06 43 15.631 +46 07 03.36 V T05
2022-12-02 13:30:06 C 06 43 15.094 +46 06 57.31 V T05
2022-12-02 13:38:37 C 06 43 14.102 +46 06 49.03 V T05
2022-12-02 14:29:33 C 06 43 08.215 +46 05 52.87 V T05
2022-12-05 16:10:05 C 06 34 16.42 +44 37 35.5 V D29
2022-12-05 16:50:49 C 06 34 10.88 +44 36 40.8 V D29
2022-12-10 22:43:55 C 06 15 23.60 +41 07 28.9 X C95
2022-12-10 23:19:08 C 06 15 17.55 +41 06 17.5 X C95
2022-12-14 09:43:44 C 06 00 33.516 +37 56 19.43 V T05
2022-12-14 09:48:24 C 06 00 32.614 +37 56 06.97 V T05
2022-12-14 09:56:17 C 06 00 31.116 +37 55 45.98 V T05
2022-12-14 10:32:32 C 06 00 23.942 +37 54 11.41 V T05
2022-12-20 18:02:27 B 05 29 02.302 +29 35 26.54 W N86
2022-12-20 18:14:21 B 05 28 59.571 +29 34 38.47 W N86
2022-12-20 18:26:26 B 05 28 56.814 +29 33 49.79 W N86
2022-12-23 06:38:19 C 05 15 24.851 +25 13 46.74 V G96
2022-12-23 06:46:26 C 05 15 22.943 +25 13 09.19 V G96
2022-12-23 06:54:33 C 05 15 21.010 +25 12 31.68 V G96
2022-12-23 07:02:42 C 05 15 19.084 +25 11 54.13 V G96
2022-12-24 06:21:35 C 05 09 59.231 +23 21 24.98 V G96
2022-12-24 06:29:41 C 05 09 57.319 +23 20 45.85 V G96
2022-12-24 06:37:46 C 05 09 55.400 +23 20 06.54 V G96
2022-12-24 06:45:51 C 05 09 53.489 +23 19 27.30 V G96
2022-12-25 05:57:23 C 05 04 33.546 +21 24 22.64 V G96
2022-12-25 06:05:28 C 05 04 31.645 +21 23 41.50 V G96
2022-12-25 06:13:31 C 05 04 29.723 +21 23 00.60 V G96
2022-12-25 06:21:35 C 05 04 27.808 +21 22 19.74 V G96
2022-12-27 06:43:03 C 04 53 17.819 +17 07 14.09 V 703
2022-12-27 06:51:15 C 04 53 15.842 +17 06 29.48 V 703
2022-12-27 06:59:28 C 04 53 13.985 +17 05 44.38 V 703
2022-12-27 07:07:41 C 04 53 12.030 +17 05 00.20 V 703
2022-12-28 19:40:57 C 04 44 48.56 +13 40 30.7 o K88
2022-12-28 19:41:19 C 04 44 48.48 +13 40 27.9 o K88
2022-12-28 19:41:41 C 04 44 48.36 +13 40 26.2 o K88
2022-12-28 19:42:04 C 04 44 48.28 +13 40 24.4 o K88
2022-12-28 21:04:55 C 04 44 28.86 +13 32 32.4 o K88
2022-12-28 21:05:17 C 04 44 28.74 +13 32 29.2 o K88
2022-12-28 21:05:40 C 04 44 28.68 +13 32 27.5 o K88
2022-12-28 21:06:02 C 04 44 28.56 +13 32 25.3 o K88
2022-12-29 13:48:39 C 04 40 39.78 +11 56 22.6 V D29
2022-12-29 14:09:01 C 04 40 34.97 +11 54 24.4 V D29
2022-12-29 14:29:23 C 04 40 30.16 +11 52 25.9 V D29
2022-12-29 14:46:33 C 04 40 26.20 +11 50 47.0 V D29
2022-12-29 15:06:54 C 04 40 21.42 +11 48 49.0 V D29
2022-12-30 03:06:21 C 04 37 38.129 +10 39 28.22 V W68
2022-12-30 03:19:20 C 04 37 35.086 +10 38 12.01 V W68
2022-12-30 03:35:36 C 04 37 31.282 +10 36 37.22 V W68
2023-01-02 00:33:24 C 04 22 10.39 +03 46 41.2 V W46
2023-01-02 00:47:02 C 04 22 07.35 +03 45 19.2 V W46