2018 AB4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1401368012 ± 4.04e-04
Semi-major axis (a)1.2742508234 AU ± 9.77e-04
Inclination (i)3.43388540° ± 1.07e-02
Long. of Asc. Node (Ω)106.13238827° ± 5.40e-03
Arg. of Perihelion (ω)349.59168687° ± 2.91e-02
Mean Anomaly (M)179.20127833° ± 2.27e+00
Mean Motion (n)0.6852197812°/day ± 7.88e-04
Perihelion dist (q)1.09568139 AU ± 9.85e-04
Aphelion dist (Q)1.45282026 AU ± 1.23e-03
Orbital Period1.43840898 yr ± 1.65e-03
Physical Parameters
H (abs. magnitude)25.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.360″
Uncertainty4
Orbit TypeAmor
MOID0.112243 AU
Observations Used26
Oppositions1
Arc Total2018-2018
First Observation Used2018-01-13
Last Observation Used2018-01-25
Observations (26)
Date Type RA Dec Mag Band Observatory
2018-01-13 07:19:45 C 08 20 57.36 +23 48 55.8 U G96
2018-01-13 07:27:10 C 08 20 57.30 +23 49 04.1 U G96
2018-01-13 07:34:37 C 08 20 57.23 +23 49 13.8 U G96
2018-01-13 07:42:03 C 08 20 57.16 +23 49 22.9 U G96
2018-01-13 08:36:29 C 08 20 56.07 +23 50 31.0 o 711
2018-01-13 08:41:41 C 08 20 56.03 +23 50 37.2 o 711
2018-01-13 08:46:55 C 08 20 55.98 +23 50 43.2 o 711
2018-01-13 09:01:51 C 08 20 56.32 +23 50 58.8 U I52
2018-01-13 09:06:37 C 08 20 56.34 +23 51 04.2 U I52
2018-01-13 09:11:24 C 08 20 56.31 +23 51 10.4 U I52
2018-01-14 05:05:49 C 08 21 11.94 +24 15 02.7 U I52
2018-01-14 05:17:45 C 08 21 11.86 +24 15 17.8 U I52
2018-01-14 05:23:42 C 08 21 11.85 +24 15 25.3 U I52
2018-01-14 06:40:40 C 08 21 10.72 +24 17 05.4 o 711
2018-01-14 06:46:48 C 08 21 10.66 +24 17 12.7 o 711
2018-01-14 06:53:06 C 08 21 10.59 +24 17 20.3 o 711
2018-01-15 07:58:53 C 08 21 21.53 +24 47 13.1 o 711
2018-01-15 08:07:20 C 08 21 21.44 +24 47 22.8 o 711
2018-01-15 08:13:33 C 08 21 21.34 +24 47 30.0 o 711
2018-01-22 06:55:35 C 08 22 10.38 +27 51 53.1 U G96
2018-01-22 07:03:06 C 08 22 10.25 +27 52 01.4 U G96
2018-01-22 07:26:43 C 08 22 09.84 +27 52 25.4 U G96
2018-01-22 07:34:16 C 08 22 09.78 +27 52 32.7 U G96
2018-01-25 04:09:07 C 08 22 26.60 +28 58 34.3 o 691
2018-01-25 04:36:20 C 08 22 26.34 +28 59 01.3 o 691
2018-01-25 05:03:33 C 08 22 26.04 +28 59 28.2 o 691