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
2009-11-02 00:16:13 C 21 18 33.89 +05 33 10.0 o H21
2009-11-02 00:22:20 C 21 18 33.67 +05 33 00.9 o H21
2009-11-09 01:31:31 C 21 14 45.63 +01 06 47.6 r 703
2009-11-09 01:41:04 C 21 14 45.52 +01 06 31.7 r 703
2009-11-09 01:50:32 C 21 14 45.27 +01 06 16.0 r 703
2009-11-09 02:00:03 C 21 14 45.06 +01 06 00.5 r 703
2009-11-10 18:20:07 C 21 14 09.10 -00 00 35.5 w 160
2009-11-10 18:23:22 C 21 14 09.06 -00 00 40.7 w 160
2009-11-10 18:26:10 C 21 14 09.05 -00 00 45.1 w 160
2009-11-11 18:03:19 C 21 13 50.91 -00 40 21.1 w 160
2009-11-11 18:07:11 C 21 13 50.91 -00 40 28.1 w 160
2009-11-11 18:11:02 C 21 13 50.83 -00 40 34.5 w 160
2009-11-16 01:34:59 C 21 12 52.87 -03 40 11.9 18.8 c 704
2009-11-16 01:53:04 C 21 12 52.65 -03 40 44.2 19.1 c 704
2009-11-16 02:11:09 C 21 12 52.41 -03 41 17.5 19.2 c 704
2009-11-16 02:29:15 C 21 12 52.20 -03 41 50.3 19.3 c 704
2009-11-16 02:47:20 C 21 12 52.00 -03 42 21.5 19.5 c 704
2009-11-28 01:20:51 C 21 11 18.46 -13 21 19.9 r 448
2009-11-28 01:36:28 C 21 11 18.15 -13 21 56.4 r 448
2009-11-29 00:24:37 C 21 11 04.53 -14 15 26.9 o H21
2009-11-29 00:28:35 C 21 11 04.49 -14 15 35.3 o H21
2009-11-29 00:32:29 C 21 11 04.45 -14 15 45.5 o H21
2010-02-22 17:46:45 S 15 44 53.86 -45 13 47.2 L C51
2010-02-22 20:57:16 S 15 44 46.70 -45 11 39.5 L C51
2010-02-23 00:07:48 S 15 44 39.38 -45 09 31.8 L C51
2010-02-23 01:43:08 S 15 44 35.76 -45 08 27.1 L C51
2010-02-23 03:18:19 S 15 44 32.08 -45 07 24.0 L C51
2010-02-23 03:18:30 S 15 44 32.10 -45 07 23.5 L C51
2010-02-23 04:53:40 S 15 44 28.44 -45 06 19.9 L C51
2010-02-23 06:29:01 S 15 44 24.718 -45 05 16.12 L C51
2010-02-23 08:04:11 S 15 44 21.046 -45 04 11.93 L C51
2010-02-23 11:14:42 S 15 44 13.63 -45 02 04.3 L C51
2010-02-23 14:25:24 S 15 44 06.19 -44 59 56.0 L C51
2010-05-07 05:20:43 C 13 38 12.98 -16 06 55.3 r G96
2010-05-07 05:29:19 C 13 38 12.66 -16 06 48.5 r G96
2010-05-07 05:37:52 C 13 38 12.33 -16 06 41.4 r G96
2010-05-07 05:46:25 C 13 38 12.01 -16 06 35.0 r G96
2018-08-29 11:47:07 C 05 14 30.92 +32 38 00.2 o 695
2018-08-29 11:49:37 C 05 14 31.64 +32 37 59.1 o 695
2018-08-29 11:52:09 C 05 14 32.34 +32 37 58.1 o 695
2018-09-28 11:23:48 C 08 44 57.72 +15 40 43.6 o 291
2018-09-28 11:28:48 C 08 44 59.01 +15 40 33.3 o 291
2018-09-28 11:33:48 C 08 45 00.32 +15 40 23.1 o 291
2019-05-01 11:28:59 C 15 54 51.463 -17 50 59.30 U F51
2019-05-01 11:44:50 C 15 54 50.485 -17 50 52.81 U F51
2019-05-01 12:00:42 C 15 54 49.522 -17 50 46.78 U F51
2022-08-06 04:47:06 C 21 32 23.77 +10 37 53.4 u H21
2022-08-06 05:02:48 C 21 32 23.02 +10 37 51.9 u H21
2022-08-06 05:16:12 C 21 32 22.39 +10 37 50.9 u H21
2022-09-01 07:15:24 C 21 00 29.881 +08 27 03.83 U F52