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
2012-12-12 03:39:11 C 06 50 56.75 +32 43 49.5 c A24
2012-12-12 03:40:14 C 06 50 56.63 +32 43 46.8 c A24
2012-12-12 07:40:36 C 06 50 22.70 +32 32 28.3 18.3 c 704
2012-12-12 08:00:07 C 06 50 19.74 +32 31 32.2 18.9 c 704
2012-12-12 08:19:53 C 06 50 16.64 +32 30 35.3 18.6 c 704
2012-12-12 08:39:19 C 06 50 13.68 +32 29 39.6 18.4 c 704
2012-12-12 08:58:32 C 06 50 10.74 +32 28 44.2 18.6 c 704
2012-12-18 06:54:00 C 06 25 52.74 +23 55 30.0 o 926
2012-12-18 07:14:16 C 06 25 48.62 +23 54 00.0 o 926
2012-12-18 07:34:30 C 06 25 44.51 +23 52 30.1 o 926
2012-12-23 04:32:45 C 06 00 34.08 +13 39 25.0 u 844
2012-12-23 04:37:50 C 06 00 32.82 +13 38 54.5 u 844
2012-12-23 04:41:31 C 06 00 31.96 +13 38 32.0 u 844
2012-12-23 04:48:51 C 06 00 30.18 +13 37 47.7 u 844
2012-12-23 04:56:22 C 06 00 28.39 +13 37 01.9 u 844
2012-12-23 05:10:08 C 06 00 26.03 +13 35 01.3 u H21
2012-12-23 05:14:22 C 06 00 25.00 +13 34 35.7 u H21
2012-12-23 05:18:36 C 06 00 23.99 +13 34 10.1 u H21
2012-12-23 05:23:18 C 06 00 22.86 +13 33 41.6 u H21
2012-12-23 05:28:20 C 06 00 21.63 +13 33 11.1 u H21
2012-12-23 05:32:27 C 06 00 20.64 +13 32 46.2 u H21
2012-12-23 05:36:50 C 06 00 19.58 +13 32 19.8 u H21
2012-12-29 21:07:48 C 05 19 46.74 -04 47 26.1 u 089
2012-12-29 21:10:39 C 05 19 45.90 -04 47 46.6 u 089
2012-12-29 21:13:30 C 05 19 45.12 -04 48 07.6 u 089
2012-12-29 21:16:21 C 05 19 44.32 -04 48 29.3 u 089
2012-12-29 21:19:12 C 05 19 43.55 -04 48 49.6 u 089
2012-12-29 21:22:03 C 05 19 42.76 -04 49 11.0 u 089
2012-12-29 21:24:54 C 05 19 41.96 -04 49 31.9 u 089
2012-12-29 21:27:45 C 05 19 41.17 -04 49 52.9 u 089
2012-12-29 21:30:36 C 05 19 40.39 -04 50 14.7 u 089
2013-01-03 12:51:16 C 04 48 52.49 -18 17 41.6 q E12
2013-01-03 13:08:25 C 04 48 47.55 -18 19 40.0 q E12
2013-01-03 13:24:31 C 04 48 42.90 -18 21 30.7 q E12
2013-01-03 13:40:28 C 04 48 38.27 -18 23 20.2 q E12
2013-07-18 08:17:20 C 19 15 07.880 +26 36 16.66 L F51
2013-07-18 08:32:52 C 19 15 06.267 +26 36 19.50 L F51
2013-08-14 03:28:45 C 18 32 33.29 +24 45 50.5 u H21
2013-08-14 03:57:42 C 18 32 32.24 +24 45 40.0 u H21
2013-08-14 04:14:19 C 18 32 31.68 +24 45 32.2 u H21
2017-11-11 10:07:09 C 07 19 05.42 +49 01 31.8 U G96
2017-11-11 10:14:35 C 07 19 05.43 +49 01 29.8 U G96
2017-11-11 10:21:58 C 07 19 05.29 +49 01 26.4 U G96
2017-11-11 10:29:21 C 07 19 05.39 +49 01 24.3 U G96
2017-11-25 13:53:48 C 07 11 29.308 +46 14 38.78 L F51
2017-11-25 14:13:18 C 07 11 28.158 +46 14 24.04 L F51
2017-11-25 14:32:50 C 07 11 27.005 +46 14 09.35 L F51
2017-12-08 06:28:42 C 06 43 33.00 +40 10 17.4 U G96
2017-12-08 06:36:24 C 06 43 31.93 +40 10 03.4 U G96
2017-12-08 06:44:06 C 06 43 30.86 +40 09 49.4 U G96