2009 SJ18

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1106510770 ± 1.14e-04
Semi-major axis (a)0.9451031469 AU ± 1.36e-05
Inclination (i)12.56744465° ± 2.78e-02
Long. of Asc. Node (Ω)0.32769472° ± 5.61e-03
Arg. of Perihelion (ω)172.98326551° ± 2.93e-03
Mean Anomaly (M)44.17850403° ± 1.68e-01
Mean Motion (n)1.0727374992°/day ± 2.32e-05
Perihelion dist (q)0.84052647 AU ± 1.08e-04
Aphelion dist (Q)1.04967983 AU ± 1.08e-04
Orbital Period0.91879540 yr ± 1.99e-05
Physical Parameters
H (abs. magnitude)24.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.240″
Uncertainty3
Orbit TypeAten
MOID0.043547 AU
Observations Used21
Oppositions1
Arc Total2009-2009
First Observation Used2009-09-21
Last Observation Used2009-09-30
Observations (24)
Date Type RA Dec Mag Band Observatory
2009-09-21 09:13:14 C 02 55 27.30 +18 53 42.3 r G96
2009-09-21 09:26:25 C 02 55 23.70 +18 55 13.8 r G96
2009-09-21 09:39:29 C 02 55 20.13 +18 56 44.9 r G96
2009-09-21 09:52:46 C 02 55 16.53 +18 58 16.8 r G96
2009-09-21 10:41:13 C 02 55 03.28 +19 03 52.4 r G96
2009-09-21 10:41:54 C 02 55 03.10 +19 03 56.9 r G96
2009-09-21 10:42:35 C 02 55 02.92 +19 04 02.1 r G96
2009-09-21 10:43:15 C 02 55 02.74 +19 04 06.4 r G96
2009-09-21 11:37:32 C 02 54 47.91 +19 10 21.1 r G96
2009-09-21 11:40:01 C 02 54 47.19 +19 10 38.0 r G96
2009-09-21 11:42:30 C 02 54 46.58 +19 10 55.2 r G96
2009-09-21 12:57:48 C 02 54 32.09 +19 20 08.1 v F65
2009-09-21 12:59:51 C 02 54 31.53 +19 20 22.1 v F65
2009-09-22 01:22:09 C 02 51 29.45 +20 46 11.3 r J95
2009-09-22 01:42:56 C 02 51 23.62 +20 48 39.1 r J95
2009-09-22 10:22:54 C 02 49 07.54 +21 51 21.2 o 673
2009-09-22 10:32:40 C 02 49 04.71 +21 52 29.5 o 673
2009-09-22 10:46:17 C 02 49 00.63 +21 54 06.1 o 673
2009-09-22 10:55:05 C 02 48 57.90 +21 55 11.9 o 673
2009-09-25 03:37:14 C 02 29 21.56 +29 58 51.0 r J95
2009-09-25 03:43:49 C 02 29 19.13 +29 59 40.8 r J95
2009-09-25 03:50:20 C 02 29 16.70 +30 00 30.8 r J95
2009-09-30 09:06:29 C 01 33 24.82 +45 37 51.8 c 926
2009-09-30 09:11:25 C 01 33 21.85 +45 38 24.8 c 926