678861 (2017 YH)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4822601682 ± 3.72e-08
Semi-major axis (a)0.6345747483 AU ± 2.06e-09
Inclination (i)19.85040535° ± 1.87e-05
Long. of Asc. Node (Ω)134.14521585° ± 2.34e-05
Arg. of Perihelion (ω)147.52539839° ± 2.53e-05
Mean Anomaly (M)71.22456265° ± 2.88e-05
Mean Motion (n)1.9497911593°/day ± 9.50e-09
Perihelion dist (q)0.32854462 AU ± 2.36e-08
Aphelion dist (Q)0.94060487 AU ± 2.38e-08
Orbital Period0.50550351 yr ± 2.46e-09
Physical Parameters
H (abs. magnitude)18.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.326″
Uncertainty0
Orbit TypeAtira
MOID0.116090 AU
Observations Used290
Oppositions10
Arc Total2016-2026
First Observation Used2016-12-05
Last Observation Used2026-02-16
Observations (297)
Date Type RA Dec Mag Band Observatory
2016-12-05 12:02:51 C 11 37 12.92 -24 30 04.1 R G45
2016-12-05 12:09:41 C 11 37 13.75 -24 30 06.1 R G45
2016-12-05 12:09:47 C 11 37 13.75 -24 30 06.7 R G45
2016-12-05 12:16:36 C 11 37 14.60 -24 30 08.6 R G45
2016-12-05 12:31:36 C 11 37 16.35 -24 30 13.9 R G45
2016-12-09 11:13:02 C 11 49 46.20 -25 04 04.4 o 691
2016-12-09 11:16:19 C 11 49 46.63 -25 04 05.4 o 691
2016-12-09 11:19:44 C 11 49 47.06 -25 04 06.7 o 691
2016-12-10 11:43:44 C 11 53 16.25 -25 12 53.9 o 691
2016-12-10 11:57:14 C 11 53 18.14 -25 12 59.1 o 691
2016-12-10 12:10:41 C 11 53 20.18 -25 13 05.3 o 691
2016-12-11 11:40:01 C 11 56 48.59 -25 21 30.4 o 291
2016-12-11 11:42:11 C 11 56 48.87 -25 21 31.3 o 291
2016-12-11 11:44:20 C 11 56 49.20 -25 21 32.0 o 291
2017-12-16 14:21:33 C 12 05 48.62 -30 36 13.9 U T08
2017-12-16 14:34:06 C 12 05 50.46 -30 36 19.3 U T08
2017-12-16 14:51:06 C 12 05 53.11 -30 36 27.9 U T08
2017-12-16 14:57:41 C 12 05 54.07 -30 36 31.5 U T08
2017-12-18 06:30:18 C 12 12 25.655 -30 54 16.23 U J04
2017-12-18 06:34:39 C 12 12 26.370 -30 54 18.21 U J04
2017-12-18 06:38:59 C 12 12 27.089 -30 54 20.19 U J04
2017-12-19 06:20:49 C 12 16 35.422 -31 04 54.89 U J04
2017-12-19 06:25:10 C 12 16 36.162 -31 04 56.89 U J04
2017-12-19 06:29:31 C 12 16 36.907 -31 04 58.95 U J04
2017-12-19 12:12:42 C 12 17 38.66 -31 07 31.4 o 926
2017-12-19 12:23:13 C 12 17 40.48 -31 07 36.5 o 926
2017-12-19 12:33:59 C 12 17 42.32 -31 07 40.7 o 926
2017-12-23 07:27:19 C 12 35 31.06 -31 46 36.6 u 807
2017-12-23 07:30:50 C 12 35 31.79 -31 46 38.3 u 807
2017-12-23 07:34:21 C 12 35 32.53 -31 46 39.9 u 807
2017-12-23 07:37:51 C 12 35 33.25 -31 46 41.5 u 807
2017-12-23 08:02:56 C 12 35 38.42 -31 46 51.2 U W88
2017-12-23 08:07:41 C 12 35 39.43 -31 46 53.2 U W88
2017-12-23 08:17:38 C 12 35 41.52 -31 46 57.8 U W88
2017-12-24 07:32:52 C 12 40 45.23 -31 56 27.4 U W88
2017-12-24 07:37:45 C 12 40 46.26 -31 56 29.7 U W88
2017-12-31 06:38:55 C 13 24 26.19 -32 48 58.4 u 807
2017-12-31 06:42:06 C 13 24 27.16 -32 48 59.1 u 807
2017-12-31 06:45:09 C 13 24 28.08 -32 48 59.9 u 807
2018-12-13 15:16:30 C 11 46 47.22 -35 33 27.9 V T05
2018-12-13 15:37:36 C 11 46 49.44 -35 33 40.4 V T05
2018-12-13 15:38:55 C 11 46 49.60 -35 33 40.8 V T05
2018-12-13 15:42:52 C 11 46 50.04 -35 33 44.1 V T05
2018-12-13 15:51:30 C 11 46 50.99 -35 33 48.3 V T05
2019-01-01 06:56:21 C 13 14 23.21 -40 12 48.3 q I47
2019-01-01 07:09:38 C 13 14 27.25 -40 12 57.4 q I47
2019-01-01 07:32:00 C 13 14 34.29 -40 13 10.2 q I47
2019-12-04 14:25:53 C 11 27 40.19 -39 53 58.6 V T05
2019-12-04 14:33:39 C 11 27 40.42 -39 54 03.8 V T05
2019-12-04 14:48:33 C 11 27 40.97 -39 54 12.4 V T05