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
2024-01-04 19:45:48 C 01 33 39.146 -70 04 12.36 V M22
2024-01-07 01:24:49 C 01 30 08.208 -66 03 50.72 V W68
2024-01-07 01:28:52 C 01 30 07.958 -66 03 32.29 V W68
2024-01-07 01:36:51 C 01 30 07.229 -66 02 54.85 V W68
2024-01-07 01:52:13 C 01 30 05.933 -66 01 42.78 V W68
2024-01-09 18:45:15 B 01 26 18.531 -60 55 50.10 Z M49
2024-01-09 18:48:26 B 01 26 18.316 -60 55 34.60 Z M49
2024-01-09 18:51:36 B 01 26 18.047 -60 55 18.99 Z M49
2024-01-10 19:06:14 B 01 24 57.418 -58 57 03.95 Z M49
2024-01-10 19:09:21 B 01 24 57.175 -58 56 48.80 Z M49
2024-01-10 19:12:27 B 01 24 56.952 -58 56 33.27 Z M49
2024-01-11 01:42:15 C 01 24 35.258 -58 24 23.87 V W68
2024-01-11 01:47:41 C 01 24 34.889 -58 23 56.69 V W68
2024-01-11 01:55:03 C 01 24 34.382 -58 23 19.86 V W68
2024-01-11 02:09:46 C 01 24 33.367 -58 22 05.02 V W68
2024-01-12 18:58:00 C 01 22 24.773 -54 58 14.92 V M22
2024-01-12 19:02:36 C 01 22 24.300 -54 57 51.70 V M22
2024-01-12 19:12:01 C 01 22 23.755 -54 57 03.13 V M22
2024-01-12 19:45:27 C 01 22 21.564 -54 54 10.37 V M22
2024-01-14 18:46:05 B 01 19 57.670 -50 54 16.20 Z M49
2024-01-14 18:50:34 B 01 19 57.403 -50 53 52.80 Z M49
2024-01-15 01:04:27 C 01 19 38.242 -50 21 36.58 V W68
2024-01-15 01:13:11 C 01 19 37.654 -50 20 50.53 V W68
2024-01-15 01:18:43 C 01 19 37.277 -50 20 21.26 V W68
2024-01-15 01:32:56 C 01 19 36.408 -50 19 06.49 V W68
2024-01-30 00:37:10 C 01 00 33.10 -20 07 48.9 V W46
2024-01-30 00:39:33 C 01 00 32.95 -20 07 37.4 V W46
2024-01-30 00:41:55 C 01 00 32.79 -20 07 28.1 V W46
2024-12-21 18:58:05 C 23 20 33.497 -79 06 21.71 V M22
2024-12-21 19:02:48 C 23 20 37.409 -79 06 08.71 V M22
2024-12-21 19:10:36 C 23 20 43.704 -79 05 47.26 V M22
2024-12-21 19:25:14 C 23 20 55.541 -79 05 07.80 V M22
2024-12-24 01:25:15 C 23 58 09.874 -76 28 57.32 V W68
2024-12-24 01:49:15 C 23 58 22.637 -76 27 40.14 V W68
2024-12-24 01:57:34 C 23 58 27.101 -76 27 13.36 V W68
2024-12-24 02:01:39 C 23 58 29.203 -76 27 00.25 V W68
2024-12-28 00:59:43 C 00 36 44.446 -71 02 40.49 V W68
2024-12-28 01:03:48 C 00 36 45.624 -71 02 25.66 V W68
2024-12-28 01:11:30 C 00 36 47.558 -71 01 56.89 V W68
2024-12-28 01:41:35 C 00 36 55.464 -71 00 03.96 V W68
2025-01-01 00:58:00 C 00 57 34.452 -64 53 55.86 V W68
2025-01-01 01:02:45 C 00 57 35.102 -64 53 36.49 V W68
2025-01-01 01:10:39 C 00 57 36.252 -64 53 04.63 V W68
2025-01-01 01:26:03 C 00 57 38.450 -64 52 01.74 V W68
2025-01-02 18:53:52 C 01 03 39.924 -62 03 29.56 V M22
2025-01-02 18:57:55 C 01 03 40.507 -62 03 11.66 V M22
2025-01-02 19:08:34 C 01 03 41.657 -62 02 27.42 V M22
2025-01-02 19:22:37 C 01 03 43.145 -62 01 28.78 V M22
2025-01-05 00:59:04 C 01 09 47.650 -58 17 07.84 V W68
2025-01-05 01:03:52 C 01 09 48.017 -58 16 47.71 V W68