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
2018-07-22 02:48:58 S 22 11 11.213 +66 27 14.69 L C51
2018-07-22 04:23:13 S 22 11 22.051 +66 32 18.20 L C51
2018-07-22 10:40:02 S 22 12 07.414 +66 52 32.66 L C51
2018-07-22 12:14:17 S 22 12 18.605 +66 57 35.39 L C51
2018-07-22 13:48:32 S 22 12 30.134 +67 02 40.81 L C51
2018-07-22 15:22:47 S 22 12 41.923 +67 07 47.82 L C51
2018-07-22 18:31:06 S 22 13 05.494 +67 17 59.42 L C51
2018-07-22 18:31:17 S 22 13 05.266 +67 17 57.62 L C51
2020-04-23 10:08:34 C 16 45 53.35 +02 15 16.5 V G96
2020-04-23 10:17:44 C 16 45 52.48 +02 15 28.1 V G96
2020-04-23 10:25:11 C 16 45 51.74 +02 15 37.6 V G96
2020-04-23 10:32:38 C 16 45 51.02 +02 15 46.8 V G96
2020-04-26 13:19:12 C 16 38 33.110 +03 48 31.05 U F51
2020-04-26 13:50:19 C 16 38 29.882 +03 49 08.95 U F51
2020-04-26 14:05:45 C 16 38 28.284 +03 49 27.72 U F51
2020-04-30 12:37:28 C 16 28 40.101 +05 41 28.84 U F51
2020-04-30 12:55:30 C 16 28 38.121 +05 41 49.79 U F51
2020-04-30 13:13:27 C 16 28 36.133 +05 42 10.29 U F51
2020-04-30 13:31:18 C 16 28 34.159 +05 42 30.50 U F51
2020-05-03 08:34:50 C 16 21 19.55 +06 57 12.6 V G96
2020-05-03 08:42:13 C 16 21 18.75 +06 57 20.9 V G96
2020-05-03 08:49:37 C 16 21 17.95 +06 57 28.5 V G96
2020-05-03 08:57:00 C 16 21 17.09 +06 57 36.2 V G96
2020-05-15 08:03:31 C 15 49 33.33 +11 16 32.6 V G96
2020-05-15 08:11:00 C 15 49 32.54 +11 16 37.8 V G96
2020-05-15 08:18:29 C 15 49 31.70 +11 16 43.3 V G96
2020-05-15 08:25:59 C 15 49 30.88 +11 16 48.6 V G96
2020-05-17 11:39:52 C 15 44 02.680 +11 50 56.18 U F51
2020-05-17 11:57:49 C 15 44 00.729 +11 51 07.46 U F51
2020-05-17 12:34:03 C 15 43 56.816 +11 51 29.86 U F51
2020-05-20 07:59:27 C 15 36 58.87 +12 30 20.3 V G96
2020-05-20 08:06:10 C 15 36 58.19 +12 30 23.6 V G96
2020-05-20 08:12:52 C 15 36 57.49 +12 30 27.2 V G96
2020-05-20 08:19:37 C 15 36 56.77 +12 30 30.4 V G96
2020-05-20 11:16:26 C 15 36 38.896 +12 32 05.55 U F51
2020-05-20 11:32:54 C 15 36 37.193 +12 32 13.99 U F51
2020-05-20 11:49:24 C 15 36 35.481 +12 32 22.53 U F51
2020-05-20 12:05:47 C 15 36 33.777 +12 32 31.05 U F51
2020-05-29 11:18:23 C 15 16 43.907 +13 52 07.86 U F51
2020-05-29 11:36:17 C 15 16 42.385 +13 52 11.93 U F51
2020-05-29 11:54:13 C 15 16 40.872 +13 52 15.91 U F51
2020-05-29 12:12:08 C 15 16 39.353 +13 52 19.87 U F51
2024-06-30 04:20:20 C 18 08 32.23 +29 30 16.1 V H21
2024-06-30 04:25:01 C 18 08 31.71 +29 30 18.6 V H21
2024-06-30 04:29:51 C 18 08 31.18 +29 30 20.8 V H21
2024-07-05 03:17:57 C 17 54 56.00 +30 05 37.6 V H21
2024-07-05 03:23:59 C 17 54 55.27 +30 05 39.0 V H21
2024-07-08 04:21:11 C 17 46 31.14 +30 16 18.7 V H21
2024-07-08 04:42:40 C 17 46 28.62 +30 16 21.1 V H21
2024-07-12 03:41:34 C 17 35 41.50 +30 17 37.4 V H21