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
2021-10-15 10:10:06 C 02 30 46.63 +66 26 11.3 V T08
2021-10-15 10:51:25 C 02 30 26.91 +66 24 45.7 V T08
2021-10-15 11:04:07 C 02 30 21.00 +66 24 19.1 V T08
2021-10-15 11:12:44 C 02 30 16.94 +66 24 01.3 V T08
2021-10-27 09:43:10 C 01 06 28.95 +54 15 57.1 V T08
2021-10-27 09:47:09 C 01 06 28.17 +54 15 45.5 V T08
2021-10-27 09:55:46 C 01 06 26.72 +54 15 22.7 V T08
2021-10-27 10:13:41 C 01 06 23.50 +54 14 34.6 V T08
2021-10-28 01:37:43 C 01 03 54.64 +53 33 20.1 X W34
2021-10-28 01:48:12 C 01 03 52.90 +53 32 52.3 X W34
2021-10-28 01:58:35 C 01 03 51.20 +53 32 25.1 X W34
2021-10-29 09:25:52 C 00 59 08.43 +52 09 07.2 V T05
2021-10-29 09:30:29 C 00 59 07.75 +52 08 55.2 V T05
2021-10-29 09:38:26 C 00 59 06.56 +52 08 34.5 V T05
2021-10-29 10:29:55 C 00 58 58.94 +52 06 18.2 V T05
2021-10-30 05:24:35 C 00 56 26.04 +51 16 40.4 V 703
2021-10-30 05:32:19 C 00 56 25.04 +51 16 20.4 V 703
2021-10-30 05:48:15 C 00 56 22.82 +51 15 38.2 V 703
2021-11-03 04:11:58 C 00 46 00.24 +47 16 03.5 V G96
2021-11-03 04:19:34 C 00 45 59.50 +47 15 44.8 V G96
2021-11-03 04:27:14 C 00 45 58.77 +47 15 26.0 V G96
2021-11-03 04:34:55 C 00 45 58.03 +47 15 07.2 V G96
2021-11-04 09:11:28 C 00 43 29.27 +46 05 44.7 V T08
2021-11-04 09:19:26 C 00 43 28.49 +46 05 24.5 V T08
2021-11-04 09:24:05 C 00 43 28.18 +46 05 13.8 V T08
2021-11-04 09:40:02 C 00 43 26.79 +46 04 35.3 V T08
2021-11-05 04:18:48 C 00 41 59.86 +45 20 11.8 V 703
2021-11-05 04:26:37 C 00 41 59.20 +45 19 53.8 V 703
2021-11-05 04:42:52 C 00 41 57.90 +45 19 14.8 V 703
2021-11-08 16:55:45 C 00 36 37.65 +42 08 21.3 V K88
2021-11-08 16:59:35 C 00 36 37.53 +42 08 12.9 V K88
2021-11-09 04:11:36 C 00 36 02.67 +41 44 08.4 V 703
2021-11-09 04:19:18 C 00 36 02.22 +41 43 53.1 V 703
2021-11-09 04:27:02 C 00 36 01.69 +41 43 36.0 V 703
2021-11-09 04:34:50 C 00 36 01.36 +41 43 19.6 V 703
2021-11-10 04:58:53 C 00 34 53.191 +40 51 43.12 U F52
2021-11-10 05:06:08 C 00 34 52.843 +40 51 28.14 U F52
2021-11-10 05:15:11 C 00 34 52.402 +40 51 09.49 U F52
2021-11-10 05:22:26 C 00 34 52.050 +40 50 54.45 U F52
2021-11-10 05:47:53 C 00 34 50.822 +40 50 01.92 U F52
2021-11-10 05:55:08 C 00 34 50.468 +40 49 46.95 U F52
2021-11-12 03:38:25 C 00 33 02.01 +39 16 52.8 V 703
2021-11-12 03:46:11 C 00 33 01.64 +39 16 38.9 V 703
2021-11-12 03:54:00 C 00 33 01.25 +39 16 22.7 V 703
2021-11-12 04:01:55 C 00 33 01.02 +39 16 07.2 V 703
2021-11-13 05:10:29 C 00 32 12.478 +38 27 11.54 U F51
2021-11-13 05:26:23 C 00 32 11.934 +38 26 41.18 U F51
2021-11-13 05:58:18 C 00 32 10.839 +38 25 40.49 U F51
2021-11-15 04:52:01 C 00 30 56.70 +36 58 21.9 V 703
2021-11-15 05:00:23 C 00 30 56.50 +36 58 06.7 V 703