523816 (2009 ST103)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7185309197 ± 4.67e-08
Semi-major axis (a)2.7004660666 AU ± 2.09e-08
Inclination (i)15.73159466° ± 1.00e-05
Long. of Asc. Node (Ω)226.42728248° ± 3.20e-05
Arg. of Perihelion (ω)234.69427811° ± 3.54e-05
Mean Anomaly (M)215.07466332° ± 1.14e-05
Mean Motion (n)0.2221028797°/day ± 2.58e-09
Perihelion dist (q)0.76009770 AU ± 1.26e-07
Aphelion dist (Q)4.64083443 AU ± 1.31e-07
Orbital Period4.43770150 yr ± 5.16e-08
Physical Parameters
H (abs. magnitude)18.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.334″
Uncertainty0
Orbit TypeApollo
MOID0.037827 AU
Observations Used140
Oppositions17
Arc Total2000-2022
First Observation Used2000-09-27
Last Observation Used2022-10-19
Observations (158)
Date Type RA Dec Mag Band Observatory
2000-09-27 05:08:23 C 21 09 11.779 +10 29 30.04 e 645
2000-09-27 05:09:43 C 21 09 11.736 +10 29 29.37 645
2000-09-27 05:13:23 C 21 09 11.558 +10 29 26.99 21.94 e 645
2000-09-30 03:30:06 C 21 06 22.300 +09 46 06.79 e 645
2000-09-30 03:35:06 C 21 06 22.101 +09 46 03.77 22.04 e 645
2000-10-02 04:19:18 C 21 04 36.05 +09 15 33.6 n 645
2000-10-02 04:20:30 C 21 04 36.01 +09 15 32.9 n 645
2000-10-02 04:21:01 C 21 04 36.054 +09 15 33.61 e 645
2000-10-02 04:22:53 C 21 04 35.92 +09 15 31.4 n 645
2000-10-02 04:24:05 C 21 04 35.88 +09 15 30.6 n 645
2000-10-02 04:26:01 C 21 04 35.875 +09 15 30.42 21.73 e 645
2001-05-17 07:57:25 C 10 54 07.71 -05 57 34.6 c 608
2001-05-17 08:12:39 C 10 54 09.52 -05 57 31.3 c 608
2001-05-17 08:27:57 C 10 54 11.31 -05 57 29.2 c 608
2009-09-26 03:05:42 C 22 16 03.50 +22 37 56.0 r 703
2009-09-26 03:16:15 C 22 16 02.49 +22 37 49.8 r 703
2009-09-26 03:26:42 C 22 16 01.56 +22 37 43.9 r 703
2009-09-26 03:37:20 C 22 16 00.66 +22 37 34.6 r 703
2009-09-26 03:49:00 C 22 15 59.61 +22 37 29.9 r 703
2009-09-26 03:58:26 C 22 15 58.75 +22 37 23.1 r 703
2009-09-26 04:07:48 C 22 15 57.88 +22 37 17.1 r 703
2009-09-26 04:17:19 C 22 15 57.06 +22 37 10.8 r 703
2009-09-26 04:38:48 C 22 15 55.25 +22 36 56.0 o G56
2009-09-26 04:46:26 C 22 15 54.60 +22 36 51.1 o G56
2009-09-26 04:54:03 C 22 15 53.87 +22 36 47.2 o G56
2009-09-26 06:37:45 C 22 15 44.34 +22 35 39.7 o H01
2009-09-26 06:44:22 C 22 15 43.74 +22 35 35.3 o H01
2009-09-26 06:52:50 C 22 15 42.98 +22 35 29.8 o H01
2009-09-26 18:19:26 C 22 14 44.03 +22 27 55.2 r 118
2009-09-26 18:22:40 C 22 14 43.75 +22 27 52.4 r 118
2009-09-26 18:25:55 C 22 14 43.51 +22 27 50.4 r 118
2009-09-26 18:29:09 C 22 14 43.20 +22 27 48.4 r 118
2009-09-26 18:34:27 C 22 14 42.72 +22 27 45.1 v B03
2009-09-26 18:53:46 C 22 14 41.06 +22 27 32.3 v B03
2009-09-26 19:17:54 C 22 14 38.87 +22 27 16.0 v B03
2009-09-26 19:23:41 C 22 14 38.39 +22 27 12.8 c 595
2009-09-26 19:31:18 C 22 14 37.65 +22 27 07.3 v B03
2009-09-26 19:49:25 C 22 14 36.07 +22 26 55.3 r 473
2009-09-26 20:02:54 C 22 14 34.87 +22 26 47.0 c 595
2009-09-27 05:32:48 C 22 13 45.09 +22 20 25.2 19.7 c 704
2009-09-27 05:50:56 C 22 13 43.49 +22 20 12.6 19.7 c 704
2009-09-27 06:08:47 C 22 13 41.86 +22 20 00.7 19.4 c 704
2009-09-27 06:26:40 C 22 13 40.26 +22 19 49.0 19.9 c 704
2009-09-27 20:08:24 C 22 12 29.42 +22 10 16.5 o B88
2009-09-27 20:36:42 C 22 12 26.88 +22 09 56.2 o B88
2009-09-27 21:05:01 C 22 12 24.43 +22 09 35.9 o B88
2009-09-28 02:10:31 C 22 11 58.42 +22 06 03.4 o 291
2009-09-28 02:16:08 C 22 11 57.91 +22 05 59.4 o 291
2009-09-28 02:22:05 C 22 11 57.38 +22 05 55.2 o 291
2009-09-28 05:27:04 C 22 11 40.93 +22 03 42.8 o G58