2012 QA18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3651817508
Semi-major axis (a)1.6641623931 AU
Inclination (i)22.64944032°
Long. of Asc. Node (Ω)151.36783669°
Arg. of Perihelion (ω)154.20829349° ± 6.00e+00
Mean Anomaly (M)71.75444626°
Mean Motion (n)0.4591091400°/day
Perihelion dist (q)1.05645160 AU
Aphelion dist (Q)2.27184560 AU
Orbital Period2.14678300 yr
Physical Parameters
H (abs. magnitude)23.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.514″
Uncertainty
Orbit TypeAmor
MOID0.068910 AU
Observations Used23
Oppositions1
Arc Total2012-2012
First Observation Used
Last Observation Used2012-08-27
Observations (23)
Date Type RA Dec Mag Band Observatory
2012-08-25 07:18:16 C 22 12 03.42 -15 24 15.6 r G96
2012-08-25 07:31:35 C 22 12 08.35 -15 26 54.4 r G96
2012-08-25 07:44:55 C 22 12 13.35 -15 29 33.7 r G96
2012-08-25 07:58:14 C 22 12 18.28 -15 32 12.3 r G96
2012-08-25 08:40:22 C 22 12 32.18 -15 40 37.1 u H21
2012-08-25 08:45:37 C 22 12 34.17 -15 41 39.5 u H21
2012-08-25 08:51:19 C 22 12 36.35 -15 42 47.1 u H21
2012-08-25 11:09:27 C 22 13 40.62 -16 07 59.7 r E12
2012-08-25 11:10:07 C 22 13 40.94 -16 08 08.7 r E12
2012-08-25 11:10:47 C 22 13 41.19 -16 08 15.9 r E12
2012-08-25 11:11:27 C 22 13 41.41 -16 08 25.3 r E12
2012-08-26 05:24:06 C 22 20 51.33 -19 37 42.0 o 291
2012-08-26 05:25:47 C 22 20 52.01 -19 38 00.6 o 291
2012-08-26 05:27:28 C 22 20 52.62 -19 38 19.8 o 291
2012-08-27 02:05:52 C 22 28 47.94 -23 13 13.5 u 807
2012-08-27 02:09:16 C 22 28 49.14 -23 13 48.2 u 807
2012-08-27 02:12:39 C 22 28 50.33 -23 14 22.0 u 807
2012-08-27 02:16:02 C 22 28 51.54 -23 14 56.4 u 807
2012-08-27 02:19:23 C 22 28 52.73 -23 15 30.4 u 807
2012-08-27 05:00:26 C 22 29 51.39 -23 44 00.8 u H36
2012-08-27 05:06:51 C 22 29 53.62 -23 45 06.0 u H36
2012-08-27 05:13:18 C 22 29 55.90 -23 46 09.9 u H36
2012-08-27 05:19:51 C 22 29 58.33 -23 47 14.8 u H36