138893 (2000 YH66)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7436157463 ± 1.83e-08
Semi-major axis (a)1.1728848238 AU ± 1.23e-09
Inclination (i)18.35871670° ± 2.42e-06
Long. of Asc. Node (Ω)265.23919426° ± 4.55e-06
Arg. of Perihelion (ω)341.39952174° ± 3.89e-06
Mean Anomaly (M)137.20864144° ± 6.31e-06
Mean Motion (n)0.7759419391°/day ± 1.22e-09
Perihelion dist (q)0.30070920 AU ± 2.14e-08
Aphelion dist (Q)2.04506045 AU ± 2.15e-08
Orbital Period1.27023200 yr ± 2.00e-09
Physical Parameters
H (abs. magnitude)18.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.049″
Uncertainty0
Orbit TypeApollo
MOID0.164817 AU
Observations Used513
Gaia Obs Used36
Oppositions3
Arc Total2000-2016
First Observation Used2000-12-30
Last Observation Used2025-12-20
Observations (571)
Date Type RA Dec Mag Band Observatory
2014-12-29 06:38:05 C 06 13 11.36 +13 00 38.0 R G45
2014-12-29 06:42:50 C 06 13 10.39 +13 00 33.1 R G45
2014-12-29 06:58:49 C 06 13 07.28 +13 00 18.8 R G45
2014-12-29 07:03:18 C 06 13 06.38 +13 00 14.4 R G45
2014-12-29 23:51:14 C 06 09 48.22 +12 44 19.5 q 160
2014-12-29 23:53:10 C 06 09 47.84 +12 44 17.9 q 160
2014-12-29 23:55:05 C 06 09 47.48 +12 44 15.7 q 160
2014-12-31 06:20:24 C 06 03 40.67 +12 14 41.3 R G45
2014-12-31 06:27:03 C 06 03 39.30 +12 14 34.9 R G45
2014-12-31 06:33:01 C 06 03 38.06 +12 14 28.8 R G45
2014-12-31 06:42:11 C 06 03 36.15 +12 14 19.9 R G45
2014-12-31 06:48:09 C 06 03 34.93 +12 14 12.4 R G45
2014-12-31 22:39:29 C 06 00 19.41 +11 58 14.1 q 160
2014-12-31 22:43:19 C 06 00 18.68 +11 58 13.0 q 160
2015-01-01 05:17:14 C 05 58 56.92 +11 51 33.9 u H21
2015-01-01 05:20:16 C 05 58 56.26 +11 51 30.9 u H21
2015-01-01 05:24:03 C 05 58 55.46 +11 51 27.2 u H21
2015-01-01 05:26:58 C 05 58 54.83 +11 51 24.2 u H21
2015-01-01 05:29:38 C 05 58 54.29 +11 51 21.5 u H21
2015-01-01 05:32:11 C 05 58 53.75 +11 51 18.7 u H21
2015-01-01 05:34:59 C 05 58 53.17 +11 51 16.1 u H21
2015-01-01 23:58:17 C 05 55 01.61 +11 32 16.0 q 160
2015-01-02 00:02:00 C 05 55 00.76 +11 32 13.3 q 160
2015-01-04 21:26:09 C 05 40 00.72 +10 17 15.0 q 160
2015-01-04 21:28:12 C 05 40 00.38 +10 17 11.3 q 160
2015-01-04 21:30:09 C 05 39 59.87 +10 17 08.9 q 160
2015-01-05 21:23:08 C 05 34 41.63 +09 50 14.0 q 160
2015-01-05 21:25:10 C 05 34 41.10 +09 50 12.0 q 160
2015-01-05 21:27:12 C 05 34 40.64 +09 50 09.6 q 160
2015-01-08 03:23:10 C 05 22 30.91 +08 47 37.3 u H21
2015-01-08 03:25:55 C 05 22 30.28 +08 47 34.0 u H21
2015-01-08 03:29:26 C 05 22 29.46 +08 47 30.0 u H21
2015-01-08 03:32:04 C 05 22 28.85 +08 47 26.9 u H21
2015-01-08 03:35:03 C 05 22 28.16 +08 47 23.2 u H21
2015-01-08 03:37:42 C 05 22 27.55 +08 47 20.1 u H21
2015-01-08 03:40:28 C 05 22 26.92 +08 47 16.7 u H21
2015-01-08 03:43:50 C 05 22 26.13 +08 47 13.0 u H21
2015-01-11 21:54:13 C 05 01 48.70 +06 58 44.7 q 203
2015-01-11 23:11:24 C 05 01 30.74 +06 57 10.1 q 203
2015-01-12 05:50:01 C 05 00 00.769 +06 49 11.80 L F51
2015-01-12 06:07:05 C 04 59 56.772 +06 48 51.25 L F51
2015-01-12 06:24:17 C 04 59 52.756 +06 48 30.15 L F51
2015-01-12 06:41:03 C 04 59 48.840 +06 48 09.86 L F51
2015-01-12 20:22:47 C 04 56 40.87 +06 31 19.2 q 160
2015-01-12 20:24:47 C 04 56 40.38 +06 31 16.6 q 160
2015-01-12 20:26:47 C 04 56 39.90 +06 31 14.4 q 160
2015-01-26 18:43:16 C 03 46 25.40 +00 05 09.3 q 160
2015-01-26 18:46:12 C 03 46 24.84 +00 05 06.3 q 160
2015-01-26 18:49:10 C 03 46 24.29 +00 05 03.0 q 160
2015-12-10 07:22:12 C 04 06 34.975 +29 48 31.09 L F51