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
1999-04-14 08:53:39 C 12 42 08.86 -08 04 12.2 16.9 a 704
1999-04-14 09:07:30 C 12 42 07.60 -08 02 29.6 a 704
1999-04-14 09:24:11 C 12 42 06.02 -08 00 25.6 17.3 a 704
1999-04-14 09:57:45 C 12 42 03.05 -07 56 18.0 17.8 a 704
1999-04-15 05:06:49 C 12 40 43.48 -05 44 12.7 17.0 a 704
1999-04-15 05:31:24 C 12 40 41.46 -05 41 34.2 a 704
1999-04-15 05:55:58 C 12 40 39.43 -05 38 55.8 a 704
1999-04-15 06:20:21 C 12 40 37.42 -05 36 18.9 17.3 a 704
1999-04-15 06:44:49 C 12 40 35.40 -05 33 41.9 a 704
1999-04-16 08:35:33 C 12 39 00.10 -03 01 00.2 17.4 a 704
1999-04-16 08:51:25 C 12 38 59.05 -02 59 33.2 17.7 a 704
1999-04-16 09:08:52 C 12 38 57.93 -02 57 58.8 a 704
1999-04-16 09:26:18 C 12 38 56.74 -02 56 25.1 a 704
1999-04-16 09:43:42 C 12 38 55.71 -02 54 51.1 17.8 a 704
1999-04-17 03:06:04 C 12 38 07.27 -01 25 50.7 17.7 a 704
1999-04-17 03:06:17 C 12 38 07.25 -01 25 50.1 17.7 a 704
1999-04-17 03:06:27 C 12 38 07.23 -01 25 49.1 17.7 a 704
1999-04-17 03:31:32 C 12 38 05.75 -01 23 47.3 a 704
1999-04-17 03:31:42 C 12 38 05.71 -01 23 46.5 18.5 a 704
1999-04-17 03:31:52 C 12 38 05.75 -01 23 45.3 18.1 a 704
1999-04-17 03:56:17 C 12 38 04.33 -01 21 47.2 a 704
1999-04-17 03:56:27 C 12 38 04.26 -01 21 47.4 18.6 a 704
1999-04-17 03:56:37 C 12 38 04.32 -01 21 45.6 a 704
1999-04-17 04:21:07 C 12 38 02.85 -01 19 46.8 18.0 a 704
1999-04-17 04:21:17 C 12 38 02.85 -01 19 47.6 18.1 a 704
1999-04-17 04:21:27 C 12 38 02.85 -01 19 45.9 18.1 a 704
1999-04-17 04:45:52 C 12 38 01.39 -01 17 48.5 a 704
1999-04-17 04:46:03 C 12 38 01.35 -01 17 47.9 a 704
1999-04-17 04:46:12 C 12 38 01.38 -01 17 46.8 18.1 a 704
1999-04-17 05:11:03 C 12 37 59.89 -01 15 47.7 17.8 a 704
1999-04-17 05:35:28 C 12 37 58.46 -01 13 50.2 a 704
1999-04-17 05:59:57 C 12 37 57.01 -01 11 53.4 a 704
1999-04-17 06:24:22 C 12 37 55.45 -01 09 57.2 a 704
1999-04-17 06:48:50 C 12 37 54.02 -01 08 00.8 a 704
1999-04-17 13:14:53 C 12 37 37.49 -00 37 04.4 426
1999-04-17 13:20:30 C 12 37 37.18 -00 36 38.6 426
1999-04-17 13:25:45 C 12 37 36.88 -00 36 14.9 426
1999-04-17 15:27:39 C 12 37 30.96 -00 28 03.5 327
1999-04-17 15:32:24 C 12 37 30.70 -00 27 41.6 327
1999-04-17 15:36:38 C 12 37 30.49 -00 27 22.0 17.5 327
1999-04-17 18:59:57 C 12 37 23.62 -00 12 18.0 d 046
1999-04-17 19:01:05 C 12 37 23.56 -00 12 13.0 d 046
1999-04-17 19:02:15 C 12 37 23.49 -00 12 09.4 d 046
1999-04-17 19:03:26 C 12 37 23.46 -00 12 03.6 d 046
1999-04-17 19:05:50 C 12 37 23.33 -00 11 52.6 d 046
1999-04-17 23:39:13 C 12 37 09.66 +00 07 58.5 z 151
1999-04-17 23:46:02 C 12 37 09.30 +00 08 26.9 z 151
1999-04-17 23:52:12 C 12 37 09.02 +00 08 54.7 z 151
1999-04-17 23:54:55 C 12 37 08.73 +00 09 07.1 z 151
1999-04-18 03:05:50 C 12 37 01.16 +00 23 36.4 860