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
2019-12-04 14:53:53 C 11 27 41.14 -39 54 15.9 V T05
2019-12-08 14:35:33 C 11 32 24.33 -40 51 34.3 V T05
2019-12-08 14:41:44 C 11 32 24.65 -40 51 38.3 V T05
2019-12-08 14:50:56 C 11 32 25.10 -40 51 44.8 V T05
2019-12-08 15:05:51 C 11 32 25.83 -40 51 54.7 V T05
2019-12-10 15:14:33 C 11 35 24.70 -41 23 34.7 V T08
2019-12-10 15:19:48 C 11 35 25.03 -41 23 38.3 V T08
2019-12-10 15:34:26 C 11 35 25.96 -41 23 48.6 V T08
2019-12-10 15:43:05 C 11 35 26.44 -41 23 53.7 V T08
2019-12-24 15:06:10 C 12 12 20.55 -46 12 11.2 V T05
2019-12-24 15:14:02 C 12 12 21.83 -46 12 19.8 V T05
2019-12-24 15:18:38 C 12 12 22.48 -46 12 24.8 V T05
2019-12-24 15:47:50 C 12 12 27.16 -46 12 56.4 V T05
2020-01-05 18:56:46 C 13 34 22.24 -51 48 44.0 q 323
2020-01-05 19:00:14 C 13 34 23.77 -51 48 48.3 q 323
2020-01-05 19:03:42 C 13 34 25.22 -51 48 51.8 q 323
2020-01-05 19:25:58 C 13 34 34.85 -51 49 17.6 q 323
2020-01-06 19:02:56 C 13 45 29.22 -52 12 32.0 q 323
2020-01-06 19:09:45 C 13 45 32.38 -52 12 39.2 q 323
2020-01-06 19:21:00 C 13 45 37.68 -52 12 51.0 q 323
2020-01-06 19:24:29 C 13 45 39.30 -52 12 54.7 q 323
2020-01-06 19:28:01 C 13 45 40.96 -52 12 58.3 q 323
2020-01-06 19:31:31 C 13 45 42.60 -52 13 01.9 q 323
2021-12-31 01:50:34 C 11 42 27.51 -74 23 12.5 V L81
2021-12-31 01:53:49 C 11 42 27.60 -74 23 22.4 V L81
2021-12-31 01:56:49 C 11 42 27.68 -74 23 31.7 V L81
2022-12-19 07:27:01 C 11 40 59.693 -75 00 32.33 V W68
2022-12-19 07:31:39 C 11 40 58.356 -75 00 42.37 V W68
2022-12-19 07:46:34 C 11 40 54.756 -75 01 15.56 V W68
2022-12-19 07:54:36 C 11 40 52.668 -75 01 33.42 V W68
2022-12-21 01:49:25 C 11 30 30.382 -76 33 10.44 V M22
2022-12-21 01:57:29 C 11 30 27.938 -76 33 28.66 V M22
2022-12-21 02:07:37 C 11 30 24.713 -76 33 52.60 V M22
2022-12-21 02:12:11 C 11 30 23.388 -76 34 03.36 V M22
2022-12-29 01:49:32 C 09 22 00.053 -84 08 01.79 V M22
2022-12-29 01:57:25 C 09 21 46.222 -84 08 18.67 V M22
2022-12-29 02:03:33 C 09 21 35.921 -84 08 30.88 V M22
2022-12-29 02:25:52 C 09 20 56.856 -84 09 18.76 V M22
2022-12-31 03:57:04 C 07 29 11.880 -85 27 23.90 V W68
2022-12-31 04:08:53 C 07 28 36.506 -85 27 33.59 V W68
2022-12-31 04:15:24 C 07 28 16.723 -85 27 39.02 V W68
2022-12-31 04:32:31 C 07 27 24.012 -85 27 54.86 V W68
2022-12-31 05:58:52 C 07 22 57.833 -85 29 00.92 V W68
2022-12-31 06:02:46 C 07 22 45.626 -85 29 03.41 V W68
2022-12-31 06:07:20 C 07 22 31.327 -85 29 06.79 V W68
2022-12-31 06:47:36 C 07 20 26.693 -85 29 33.47 V W68
2023-01-01 21:18:23 C 05 20 59.009 -85 21 08.71 V M22
2023-01-01 23:58:18 C 05 12 45.660 -85 17 41.75 V M22
2023-01-02 00:03:31 C 05 12 29.798 -85 17 34.48 V M22
2023-01-04 01:45:14 C 03 19 24.768 -83 24 59.94 V W68