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
2009-09-28 05:33:04 C 22 11 40.37 +22 03 39.0 o G58
2009-09-28 05:39:04 C 22 11 39.84 +22 03 34.4 o G58
2009-09-28 07:22:23 C 22 11 30.40 +22 02 21.2 c 926
2009-09-28 07:25:16 C 22 11 30.13 +22 02 19.0 c 926
2009-09-28 07:28:11 C 22 11 29.87 +22 02 16.9 c 926
2009-09-29 00:26:55 C 22 10 01.66 +21 49 49.5 v 204
2009-09-29 00:33:14 C 22 10 01.07 +21 49 44.9 v 204
2009-09-29 00:39:04 C 22 10 00.56 +21 49 40.4 v 204
2009-09-29 02:32:00 C 22 09 51.86 +21 48 20.2 o 291
2009-09-29 02:38:17 C 22 09 51.30 +21 48 15.5 o 291
2009-09-29 02:43:54 C 22 09 50.79 +21 48 11.4 o 291
2009-10-01 01:33:48 C 22 05 48.95 +21 11 45.4 o H55
2009-10-01 01:41:21 C 22 05 48.28 +21 11 39.3 o H55
2009-10-01 01:48:24 C 22 05 47.63 +21 11 33.7 o H55
2009-10-01 04:14:42 C 22 05 35.11 +21 09 35.6 o G56
2009-10-01 04:22:52 C 22 05 34.37 +21 09 28.5 o G56
2009-10-01 04:31:01 C 22 05 33.63 +21 09 22.3 o G56
2009-10-03 19:30:12 C 22 00 13.74 +20 15 22.6 c 587
2009-10-03 19:49:17 C 22 00 12.14 +20 15 06.6 c 587
2009-10-03 20:00:53 C 22 00 11.05 +20 14 55.5 c 587
2009-10-05 01:45:54 C 21 57 43.01 +19 47 35.0 o H55
2009-10-05 01:49:25 C 21 57 42.69 +19 47 31.6 o H55
2009-10-05 01:53:03 C 21 57 42.37 +19 47 28.0 o H55
2009-10-05 05:28:20 C 21 57 24.20 +19 44 08.1 c 926
2009-10-05 05:30:45 C 21 57 24.02 +19 44 05.4 c 926
2009-10-05 05:33:07 C 21 57 23.79 +19 44 03.1 c 926
2009-10-12 19:37:56 C 21 43 17.41 +16 31 55.6 w 954
2009-10-12 19:42:16 C 21 43 17.08 +16 31 50.9 w 954
2009-10-12 19:55:05 C 21 43 16.10 +16 31 35.8 w 954
2009-10-12 20:10:40 C 21 43 14.92 +16 31 17.8 w 954
2009-10-14 02:00:42 C 21 41 08.44 +15 56 12.1 r G96
2009-10-14 02:07:55 C 21 41 07.90 +15 56 03.6 r G96
2009-10-14 02:15:00 C 21 41 07.40 +15 55 55.3 r G96
2009-10-14 02:22:08 C 21 41 06.86 +15 55 46.6 r G96
2009-10-18 05:03:25 C 21 34 37.74 +13 53 33.7 r 703
2009-10-18 05:11:19 C 21 34 37.23 +13 53 24.1 r 703
2009-10-18 05:19:18 C 21 34 36.73 +13 53 13.8 r 703
2009-10-19 01:30:02 C 21 33 24.04 +13 27 08.1 o H26
2009-10-19 01:32:28 C 21 33 23.85 +13 27 03.9 o H26
2009-10-19 01:59:32 C 21 33 22.17 +13 26 29.6 o H26
2009-10-19 02:04:16 C 21 33 21.84 +13 26 23.6 o H26
2009-10-21 00:53:26 C 21 30 40.57 +12 24 38.6 o H55
2009-10-21 00:55:57 C 21 30 40.40 +12 24 35.5 o H55
2009-10-21 01:05:52 C 21 30 39.81 +12 24 22.3 o H55
2009-10-26 18:07:45 C 21 23 56.75 +09 14 34.1 w 160
2009-10-26 18:11:27 C 21 23 56.59 +09 14 28.7 w 160
2009-11-01 02:02:40 C 21 19 13.99 +06 06 49.5 r 448
2009-11-01 02:13:19 C 21 19 13.64 +06 06 33.4 r 448
2009-11-01 02:23:24 C 21 19 13.23 +06 06 17.4 r 448
2009-11-02 00:10:40 C 21 18 34.06 +05 33 18.5 o H21