399325 (1999 GY5)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6147513679 ± 1.29e-07
Semi-major axis (a)1.1464844965 AU ± 2.71e-09
Inclination (i)24.42691937° ± 1.18e-05
Long. of Asc. Node (Ω)203.36746632° ± 6.04e-06
Arg. of Perihelion (ω)232.23869490° ± 1.21e-05
Mean Anomaly (M)297.61767388° ± 3.94e-05
Mean Motion (n)0.8028972986°/day ± 2.85e-09
Perihelion dist (q)0.44168158 AU ± 1.47e-07
Aphelion dist (Q)1.85128741 AU ± 1.47e-07
Orbital Period1.22758700 yr ± 4.35e-09
Physical Parameters
H (abs. magnitude)20.18
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.449″
Uncertainty0
Orbit TypeApollo
MOID0.063615 AU
Observations Used180
Oppositions5
Arc Total1999-2025
First Observation Used1999-04-14
Last Observation Used2025-05-27
Observations (218)
Date Type RA Dec Mag Band Observatory
2024-07-12 04:08:36 C 17 35 38.39 +30 17 36.1 V H21
2024-07-13 02:52:12 C 17 33 06.58 +30 15 49.9 V H21
2024-07-13 02:58:15 C 17 33 05.89 +30 15 49.4 V H21
2024-07-13 03:04:17 C 17 33 05.20 +30 15 48.9 V H21
2024-07-14 03:54:24 C 17 30 20.63 +30 12 59.2 V H21
2024-07-14 04:02:44 C 17 30 19.71 +30 12 58.4 V H21
2024-07-14 04:07:27 C 17 30 19.19 +30 12 57.8 V H21
2024-07-27 02:54:58 C 16 59 42.43 +28 26 52.5 V H21
2024-07-27 03:05:22 C 16 59 41.52 +28 26 46.6 V H21
2024-07-27 03:07:27 C 16 59 41.31 +28 26 45.9 V H21
2024-08-05 02:37:32 C 16 43 46.66 +26 12 02.1 V H21
2024-08-05 02:41:00 C 16 43 46.44 +26 11 58.4 V H21
2025-05-03 12:29:46 C 17 25 25.454 +06 39 56.26 X F52
2025-05-03 12:56:07 C 17 25 23.563 +06 40 22.11 X F52
2025-05-03 13:09:19 C 17 25 22.622 +06 40 35.12 X F52
2025-05-27 11:55:40 C 16 34 46.419 +14 17 56.10 X F51
2025-05-27 12:31:02 C 16 34 42.884 +14 18 14.50 X F51
2025-05-27 12:48:52 C 16 34 41.109 +14 18 23.49 X F51