1999 YD

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5933523162 ± 2.47e-05
Semi-major axis (a)2.4638809537 AU ± 1.02e-04
Inclination (i)1.37531178° ± 2.89e-05
Long. of Asc. Node (Ω)9.34240670° ± 5.84e-04
Arg. of Perihelion (ω)61.87478912° ± 5.85e-04
Mean Anomaly (M)257.48821032° ± 1.66e-01
Mean Motion (n)0.2548488602°/day ± 1.58e-05
Perihelion dist (q)1.00193148 AU ± 7.35e-05
Aphelion dist (Q)3.92583042 AU ± 1.73e-04
Orbital Period3.86749339 yr ± 2.40e-04
Physical Parameters
H (abs. magnitude)21.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.387″
Uncertainty3
Orbit TypeApollo
MOID0.025539 AU
Observations Used98
Oppositions1
Arc Total1999-2000
First Observation Used1999-12-17
Last Observation Used2000-02-26
Observations (99)
Date Type RA Dec Mag Band Observatory
1999-12-21 17:52:52 C 09 12 21.19 +40 47 36.4 i 888
1999-12-21 17:59:47 C 09 12 22.40 +40 47 05.8 i 888
1999-12-29 16:47:14 C 09 34 26.42 +31 12 12.3 z 402
1999-12-29 16:49:03 C 09 34 26.46 +31 12 08.5 z 402
1999-12-29 16:50:52 C 09 34 26.49 +31 12 05.7 z 402
1999-12-30 15:59:49 C 09 35 30.43 +30 29 05.6 413
1999-12-30 16:02:02 C 09 35 30.49 +30 29 01.5 413
1999-12-31 00:19:20 C 09 35 51.31 +30 12 13.8 587
1999-12-31 00:25:19 C 09 35 51.39 +30 12 03.5 587
1999-12-31 01:07:08 C 09 35 51.74 +30 10 48.1 c 046
1999-12-31 01:08:32 C 09 35 51.76 +30 10 45.6 c 046
1999-12-31 01:11:26 C 09 35 51.86 +30 10 40.6 c 046
1999-12-31 01:14:47 C 09 35 51.88 +30 10 34.2 c 046
1999-12-31 01:16:14 C 09 35 51.94 +30 10 32.3 c 046
1999-12-31 01:17:45 C 09 35 51.93 +30 10 28.9 c 046
2000-01-01 05:41:09 C 09 36 44.65 +29 22 19.5 z 104
2000-01-01 05:42:44 C 09 36 44.73 +29 22 16.0 z 104
2000-01-01 05:45:04 C 09 36 44.68 +29 22 13.1 z 104
2000-01-03 08:53:32 C 09 37 56.89 +28 06 55.7 18.4 a 704
2000-01-03 09:14:54 C 09 37 56.79 +28 06 27.4 18.2 a 704
2000-01-03 09:36:15 C 09 37 56.65 +28 05 58.0 18.5 a 704
2000-01-03 09:57:40 C 09 37 56.50 +28 05 29.0 18.5 a 704
2000-01-03 10:19:05 C 09 37 56.38 +28 04 59.7 18.8 a 704
2000-01-04 17:12:00 C 09 38 19.13 +27 25 14.6 360
2000-01-04 17:15:14 C 09 38 19.09 +27 25 10.5 360
2000-01-04 17:19:00 C 09 38 19.05 +27 25 05.9 360
2000-01-04 17:35:40 C 09 38 18.57 +27 24 43.5 z 402
2000-01-04 17:37:30 C 09 38 18.57 +27 24 41.5 z 402
2000-01-04 17:39:19 C 09 38 18.53 +27 24 39.2 z 402
2000-01-07 09:41:40 C 09 38 27.28 +26 13 34.8 z 711
2000-01-09 09:44:55 C 09 38 08.57 +25 28 20.9 z 711
2000-02-07 14:13:48 C 09 21 05.12 +20 18 40.0 413
2000-02-07 14:18:00 C 09 21 04.98 +20 18 39.1 413
2000-02-07 14:21:54 C 09 21 04.89 +20 18 38.1 413
2000-02-08 13:38:38 C 09 20 36.18 +20 13 00.5 413
2000-02-08 13:42:17 C 09 20 36.09 +20 12 59.5 413
2000-02-09 14:04:31 C 09 20 07.21 +20 07 12.1 413
2000-02-09 14:15:17 C 09 20 06.91 +20 07 09.2 413
2000-02-09 14:23:24 C 09 20 06.70 +20 07 07.6 413
2000-02-09 14:36:42 C 09 20 06.36 +20 07 04.4 413
2000-02-10 07:08:06 C 09 19 47.92 +20 02 45.4 z 711
2000-02-10 07:26:55 C 09 19 47.44 +20 02 41.0 z 711
2000-02-10 13:11:30 C 09 19 41.93 +20 01 47.2 413
2000-02-10 13:16:40 C 09 19 41.81 +20 01 45.6 413
2000-02-10 13:21:49 C 09 19 41.68 +20 01 44.6 413
2000-02-12 08:20:49 C 09 18 57.56 +19 51 26.0 z 711
2000-02-26 12:36:15 C 09 16 50.44 +18 37 52.0 413
2000-02-26 12:41:32 C 09 16 50.47 +18 37 51.3 413
2000-02-26 13:05:29 C 09 16 50.41 +18 37 45.7 413