2018 AD4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2187992044 ± 2.93e-07
Semi-major axis (a)0.9287431762 AU ± 1.21e-08
Inclination (i)13.57089638° ± 3.07e-05
Long. of Asc. Node (Ω)112.15830363° ± 8.80e-06
Arg. of Perihelion (ω)199.15432991° ± 6.20e-05
Mean Anomaly (M)73.19532067° ± 5.71e-05
Mean Motion (n)1.1012066424°/day ± 2.15e-08
Perihelion dist (q)0.72553491 AU ± 2.72e-07
Aphelion dist (Q)1.13195144 AU ± 2.72e-07
Orbital Period0.89504208 yr ± 1.75e-08
Physical Parameters
H (abs. magnitude)22.72
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.306″
Uncertainty0
Orbit TypeAten
MOID0.114376 AU
Observations Used82
Oppositions1
Arc Total2017-2025
First Observation Used2017-12-14
Last Observation Used2025-12-22
Observations (83)
Date Type RA Dec Mag Band Observatory
2017-12-14 13:29:13 C 09 49 08.997 -12 34 54.01 V F51
2017-12-14 14:03:55 C 09 49 08.206 -12 34 01.85 V F51
2017-12-28 12:22:20 C 09 36 50.913 -00 48 19.89 V F51
2017-12-28 12:39:28 C 09 36 49.532 -00 47 30.75 V F51
2017-12-28 12:56:37 C 09 36 48.115 -00 46 41.99 V F51
2017-12-28 13:13:48 C 09 36 46.681 -00 45 52.73 V F51
2017-12-29 11:56:19 C 09 35 11.279 +00 20 24.39 V F51
2017-12-29 12:15:25 C 09 35 09.598 +00 21 21.58 V F51
2017-12-29 12:34:31 C 09 35 07.933 +00 22 18.49 V F51
2018-01-13 07:49:35 C 08 51 57.76 +22 51 54.8 U G96
2018-01-13 07:56:59 C 08 51 56.37 +22 52 26.9 U G96
2018-01-13 08:04:21 C 08 51 54.97 +22 52 58.4 U G96
2018-01-13 08:11:43 C 08 51 53.55 +22 53 30.2 U G96
2018-01-13 09:55:10 C 08 51 33.83 +23 00 52.9 U I52
2018-01-13 09:55:47 C 08 51 33.73 +23 00 55.5 U I52
2018-01-13 09:56:22 C 08 51 33.62 +23 00 58.0 U I52
2018-01-13 09:56:58 C 08 51 33.50 +23 01 00.3 U I52
2018-01-13 22:54:27 C 08 49 19.12 +23 56 16.5 19.1 U K63
2018-01-13 23:05:31 C 08 49 17.02 +23 57 04.6 19.4 U K63
2018-01-13 23:28:10 C 08 49 12.67 +23 58 42.2 19.2 U K63
2018-01-14 02:23:54 C 08 48 39.00 +24 11 10.5 U 204
2018-01-14 02:35:52 C 08 48 36.71 +24 12 01.2 U 204
2018-01-14 02:47:48 C 08 48 34.42 +24 12 51.9 U 204
2018-01-14 06:33:12 C 08 47 57.62 +24 29 07.9 U I52
2018-01-14 06:36:21 C 08 47 57.01 +24 29 21.8 U I52
2018-01-14 06:38:30 C 08 47 56.59 +24 29 31.4 U I52
2018-01-14 07:47:57 C 08 47 42.56 +24 34 32.5 o 711
2018-01-14 07:51:53 C 08 47 41.77 +24 34 49.9 o 711
2018-01-14 07:55:56 C 08 47 40.96 +24 35 06.7 o 711
2018-01-14 22:43:24 C 08 44 59.58 +25 37 46.0 o K88
2018-01-14 22:47:57 C 08 44 58.69 +25 38 05.5 o K88
2018-01-14 22:52:30 C 08 44 57.85 +25 38 24.1 o K88
2018-01-15 08:55:22 C 08 43 04.01 +26 21 16.4 o 711
2018-01-15 08:58:05 C 08 43 03.45 +26 21 27.9 o 711
2018-01-15 09:00:31 C 08 43 02.95 +26 21 38.1 o 711
2018-01-15 09:02:59 C 08 43 02.45 +26 21 48.4 o 711
2018-01-15 12:56:06 C 08 42 16.15 +26 37 56.3 U I52
2018-01-15 12:58:56 C 08 42 15.59 +26 38 08.2 U I52
2018-01-15 13:01:48 C 08 42 15.04 +26 38 19.9 U I52
2018-01-15 13:04:38 C 08 42 14.52 +26 38 31.7 U I52
2018-01-17 08:58:06 C 08 33 47.04 +29 41 12.1 U I52
2018-01-17 09:05:40 C 08 33 45.39 +29 41 43.3 U I52
2018-01-17 09:13:44 C 08 33 43.70 +29 42 15.9 U I52
2018-01-19 20:57:33 C 08 21 31.30 +33 38 14.9 q K61
2018-01-19 20:57:59 C 08 21 31.19 +33 38 16.6 q K61
2018-01-19 20:58:42 C 08 21 31.04 +33 38 19.3 q K61
2018-01-20 07:09:27 C 08 19 20.60 +34 17 12.4 U G96
2018-01-20 07:17:01 C 08 19 18.86 +34 17 41.0 U G96
2018-01-20 07:25:40 C 08 19 16.85 +34 18 13.7 U G96
2018-01-20 07:33:16 C 08 19 15.10 +34 18 42.2 U G96