331509 (1999 YA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3390296047 ± 2.12e-08
Semi-major axis (a)1.6768554027 AU ± 1.19e-09
Inclination (i)38.24071693° ± 5.42e-06
Long. of Asc. Node (Ω)106.15008307° ± 3.91e-06
Arg. of Perihelion (ω)265.58189497° ± 8.60e-06
Mean Anomaly (M)23.21119646° ± 5.04e-06
Mean Motion (n)0.4539090633°/day ± 4.83e-10
Perihelion dist (q)1.10835178 AU ± 3.55e-08
Aphelion dist (Q)2.24535903 AU ± 3.55e-08
Orbital Period2.17141794 yr ± 2.31e-09
Physical Parameters
H (abs. magnitude)18.23
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.328″
Uncertainty0
Orbit TypeAmor
MOID0.367286 AU
Observations Used414
Oppositions15
Arc Total1999-2026
First Observation Used1999-12-16
Last Observation Used2026-01-12
Observations (433)
Date Type RA Dec Mag Band Observatory
2012-11-14 08:23:26 C 07 44 00.53 -38 17 47.8 u 807
2012-11-14 08:29:11 C 07 44 00.31 -38 17 43.2 u 807
2012-11-14 08:34:58 C 07 44 00.09 -38 17 38.6 u 807
2012-11-14 08:40:43 C 07 43 59.88 -38 17 34.0 u 807
2012-11-16 08:01:29 C 07 42 18.73 -37 37 43.2 u 807
2012-11-16 08:21:08 C 07 42 17.89 -37 37 26.2 u 807
2012-11-16 08:26:53 C 07 42 17.64 -37 37 21.1 u 807
2012-11-17 08:11:05 C 07 41 20.96 -37 16 09.4 u 807
2012-11-17 08:16:52 C 07 41 20.70 -37 16 04.1 u 807
2012-11-17 08:22:38 C 07 41 20.43 -37 15 58.9 u 807
2012-11-17 08:28:25 C 07 41 20.16 -37 15 53.6 u 807
2012-11-17 08:36:17 C 07 41 19.80 -37 15 46.6 u 807
2012-12-18 06:29:07 C 06 39 43.07 -14 51 31.0 17.9 c 704
2012-12-18 06:47:59 C 06 39 40.88 -14 50 35.6 18.3 c 704
2012-12-18 07:07:06 C 06 39 38.62 -14 49 39.1 18.6 c 704
2012-12-18 07:27:16 C 06 39 36.22 -14 48 41.0 18.3 c 704
2012-12-18 07:46:52 C 06 39 33.91 -14 47 43.6 18.3 c 704
2012-12-23 05:49:05 C 06 26 06.41 -08 45 48.5 u 844
2012-12-23 05:55:20 C 06 26 05.69 -08 45 28.4 u 844
2012-12-23 05:59:00 C 06 26 05.24 -08 45 17.0 u 844
2012-12-29 00:11:29 C 06 10 48.19 -01 19 37.4 q 160
2012-12-29 00:15:03 C 06 10 47.75 -01 19 26.3 q 160
2012-12-29 00:18:29 C 06 10 47.36 -01 19 15.0 q 160
2012-12-30 01:01:48 C 06 08 10.15 +00 00 44.0 q 160
2012-12-30 01:03:12 C 06 08 09.98 +00 00 47.6 q 160
2012-12-30 01:04:59 C 06 08 09.76 +00 00 53.8 q 160
2012-12-30 22:03:18 C 06 05 59.38 +01 08 23.0 q 160
2012-12-30 22:07:14 C 06 05 58.94 +01 08 35.5 q 160
2012-12-30 22:11:10 C 06 05 58.52 +01 08 48.1 q 160
2012-12-31 22:04:02 C 06 03 31.97 +02 25 06.8 q 160
2012-12-31 22:07:50 C 06 03 31.58 +02 25 19.1 q 160
2012-12-31 22:11:52 C 06 03 31.15 +02 25 31.9 q 160
2013-02-06 07:43:07 C 05 22 05.703 +32 53 26.39 L F51
2013-02-06 08:00:12 C 05 22 05.741 +32 53 44.72 L F51
2014-06-19 11:49:33 C 17 41 25.567 +11 53 12.10 L F51
2014-06-19 12:07:37 C 17 41 23.840 +11 52 53.62 L F51
2014-06-19 12:25:39 C 17 41 22.107 +11 52 34.91 L F51
2014-06-21 05:31:46 C 17 37 30.99 +11 08 51.2 u H21
2014-06-21 05:37:57 C 17 37 30.37 +11 08 44.8 u H21
2014-06-21 05:44:26 C 17 37 29.71 +11 08 37.7 u H21
2014-07-01 09:55:46 C 17 13 37.815 +05 45 29.83 L F51
2014-07-01 10:11:37 C 17 13 36.202 +05 45 05.53 L F51
2014-07-01 10:27:23 C 17 13 34.603 +05 44 41.41 L F51
2014-07-01 10:43:08 C 17 13 33.000 +05 44 17.16 L F51
2014-07-01 22:17:43 C 17 12 25.31 +05 26 23.6 18.9 u J43
2014-07-01 22:36:45 C 17 12 23.33 +05 25 53.0 19.2 u J43
2014-07-01 22:55:48 C 17 12 21.46 +05 25 24.7 19.3 u J43
2014-07-01 23:14:53 C 17 12 19.52 +05 24 54.7 19.5 u J43
2014-07-26 07:36:13 C 16 24 30.902 -12 10 18.38 L F51
2014-07-26 07:53:19 C 16 24 29.868 -12 10 50.28 L F51