2018 AC4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4504660000
Semi-major axis (a)1.2872713000 AU
Inclination (i)24.04823000°
Long. of Asc. Node (Ω)293.92532000°
Arg. of Perihelion (ω)87.13182000°
Mean Anomaly (M)178.51772000°
Mean Motion (n)0.6748370900°/day
Perihelion dist (q)0.70739930 AU
Aphelion dist (Q)1.86714330 AU
Orbital Period1.46051200 yr
Physical Parameters
H (abs. magnitude)25.40
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.320″
Uncertainty6
Orbit TypeApollo
MOID0.009924 AU
Observations Used33
Oppositions1
Arc Total
First Observation Used
Last Observation Used2018-01-15
Observations (33)
Date Type RA Dec Mag Band Observatory
2018-01-13 07:44:52 C 08 44 32.90 +19 28 05.1 U G96
2018-01-13 07:52:15 C 08 44 26.19 +19 26 36.3 U G96
2018-01-13 07:59:38 C 08 44 19.56 +19 25 07.3 U G96
2018-01-13 08:07:00 C 08 44 12.80 +19 23 37.9 U G96
2018-01-13 08:50:09 C 08 43 32.73 +19 15 00.0 o 711
2018-01-13 08:52:49 C 08 43 30.30 +19 14 27.6 o 711
2018-01-13 08:55:25 C 08 43 27.93 +19 13 55.3 o 711
2018-01-13 08:58:06 C 08 43 25.51 +19 13 23.3 o 711
2018-01-13 09:26:48 C 08 43 00.72 +19 07 33.7 U I52
2018-01-13 09:28:11 C 08 42 59.48 +19 07 17.0 U I52
2018-01-13 09:29:35 C 08 42 58.19 +19 06 59.8 U I52
2018-01-13 09:30:58 C 08 42 57.00 +19 06 43.2 U I52
2018-01-13 09:46:11 C 08 42 42.98 +19 03 35.8 U H01
2018-01-13 09:52:42 C 08 42 37.17 +19 02 17.2 U H01
2018-01-13 10:09:21 C 08 42 22.40 +18 58 56.9 U H01
2018-01-13 10:16:05 C 08 42 16.43 +18 57 35.9 U H01
2018-01-14 01:11:47 C 08 30 28.50 +16 07 53.4 U 204
2018-01-14 01:42:00 C 08 30 05.57 +16 02 28.3 U 204
2018-01-14 06:06:44 C 08 27 01.92 +15 16 24.0 U I52
2018-01-14 06:08:07 C 08 27 00.91 +15 16 09.4 U I52
2018-01-14 06:09:30 C 08 26 59.89 +15 15 55.3 U I52
2018-01-14 06:10:53 C 08 26 58.92 +15 15 40.9 U I52
2018-01-14 06:42:59 C 08 26 35.17 +15 10 09.0 U H01
2018-01-14 06:59:58 C 08 26 22.85 +15 07 14.6 U H01
2018-01-14 07:09:27 C 08 26 15.99 +15 05 37.3 U H01
2018-01-14 07:14:19 C 08 26 12.48 +15 04 47.5 U H01
2018-01-15 07:26:24 C 08 11 13.07 +11 17 59.0 o 711
2018-01-15 07:29:34 C 08 11 11.24 +11 17 32.1 o 711
2018-01-15 07:32:12 C 08 11 09.74 +11 17 09.7 o 711
2018-01-15 07:35:14 C 08 11 07.95 +11 16 44.3 o 711
2018-01-15 07:52:53 C 08 10 58.49 +11 14 10.7 U I52
2018-01-15 07:54:16 C 08 10 57.69 +11 13 59.1 U I52
2018-01-15 07:57:02 C 08 10 56.09 +11 13 35.3 U I52