2018 AL18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2340336432 ± 7.71e-08
Semi-major axis (a)1.2852069892 AU ± 1.69e-08
Inclination (i)16.78783419° ± 1.14e-05
Long. of Asc. Node (Ω)313.26032530° ± 1.23e-05
Arg. of Perihelion (ω)94.09425260° ± 2.29e-05
Mean Anomaly (M)195.30336793° ± 4.74e-05
Mean Motion (n)0.6764764125°/day ± 1.33e-08
Perihelion dist (q)0.98442532 AU ± 1.00e-07
Aphelion dist (Q)1.58598866 AU ± 1.01e-07
Orbital Period1.45700022 yr ± 2.87e-08
Physical Parameters
H (abs. magnitude)21.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.316″
Uncertainty0
Orbit TypeApollo
MOID0.162084 AU
Observations Used71
Oppositions1
Arc Total2014-2018
First Observation Used2014-07-25
Last Observation Used2018-04-15
Observations (75)
Date Type RA Dec Mag Band Observatory
2014-07-25 08:31:57 C 19 26 46.503 -40 18 01.32 V F51
2014-07-25 08:46:18 C 19 26 44.197 -40 17 41.91 V F51
2014-07-25 09:15:02 C 19 26 39.500 -40 17 03.11 V F51
2015-01-01 05:48:10 C 23 05 35.495 +48 15 06.20 V F51
2015-01-01 06:06:40 C 23 05 41.678 +48 15 19.08 V F51
2015-01-01 06:43:45 C 23 05 54.332 +48 15 44.08 V F51
2017-08-26 09:45:54 C 02 14 38.340 +53 19 53.57 V F51
2017-08-26 11:26:41 C 02 15 00.695 +53 25 55.28 V F51
2017-08-26 14:15:50 C 02 15 37.514 +53 35 53.90 V F51
2017-08-27 10:25:01 C 02 20 26.305 +54 45 43.33 V F51
2017-08-27 11:50:15 C 02 20 46.122 +54 50 44.12 V F51
2017-08-27 12:45:11 C 02 20 58.732 +54 53 55.74 V F51
2018-01-14 14:26:31 C 11 57 38.683 +05 21 44.17 U F51
2018-01-14 14:43:26 C 11 57 37.546 +05 21 15.92 U F51
2018-01-14 15:00:25 C 11 57 36.408 +05 20 47.54 U F51
2018-01-14 15:17:40 C 11 57 35.259 +05 20 18.82 U F51
2018-01-15 10:12:00 C 11 56 26.44 +04 48 37.6 o 291
2018-01-15 10:16:19 C 11 56 26.13 +04 48 30.5 o 291
2018-01-15 10:20:36 C 11 56 25.84 +04 48 23.2 o 291
2018-01-15 11:39:05 C 11 56 20.16 +04 46 12.7 o 711
2018-01-15 11:45:04 C 11 56 19.74 +04 46 03.4 o 711
2018-01-15 11:50:37 C 11 56 19.35 +04 45 54.0 o 711
2018-01-15 12:59:45 C 11 56 15.968 +04 44 02.33 U 568
2018-01-15 13:01:07 C 11 56 15.872 +04 44 00.02 U 568
2018-01-15 13:02:29 C 11 56 15.772 +04 43 57.72 U 568
2018-01-18 12:07:31 C 11 51 21.76 +02 44 48.0 U I52
2018-01-18 12:12:18 C 11 51 21.44 +02 44 43.1 U I52
2018-01-18 12:17:04 C 11 51 21.02 +02 44 36.9 U I52
2018-01-18 12:26:29 C 11 51 20.30 +02 44 21.8 o 291
2018-01-18 12:40:26 C 11 51 19.15 +02 43 58.6 o 291
2018-01-20 07:26:30 C 11 48 00.80 +01 32 55.5 u 807
2018-01-20 07:34:47 C 11 48 00.05 +01 32 41.9 u 807
2018-01-20 07:43:19 C 11 47 59.30 +01 32 27.2 u 807
2018-01-20 09:56:45 C 11 47 48.68 +01 28 17.5 o 691
2018-01-20 10:28:43 C 11 47 45.86 +01 27 23.5 o 691
2018-01-20 11:00:39 C 11 47 43.04 +01 26 31.3 o 691
2018-01-25 06:22:38 C 11 37 16.52 -01 43 55.5 u 807
2018-01-25 06:29:22 C 11 37 15.81 -01 44 06.8 u 807
2018-01-25 06:35:53 C 11 37 15.11 -01 44 17.3 u 807
2018-01-25 12:15:00 C 11 36 40.00 -01 53 59.4 U V06
2018-01-25 12:17:10 C 11 36 39.79 -01 54 03.2 U V06
2018-01-25 12:19:21 C 11 36 39.56 -01 54 06.6 U V06
2018-01-28 08:12:39 C 11 29 30.61 -03 43 02.5 u 807
2018-01-28 08:19:17 C 11 29 29.83 -03 43 13.0 u 807
2018-01-28 08:25:44 C 11 29 29.07 -03 43 22.7 u 807
2018-02-04 12:09:49 C 11 08 37.45 -08 02 26.3 U I52
2018-02-04 12:13:24 C 11 08 36.98 -08 02 31.5 U I52
2018-02-04 12:15:11 C 11 08 36.72 -08 02 34.2 U I52
2018-02-05 07:50:26 C 11 06 03.13 -08 29 45.4 o 691
2018-02-05 08:11:09 C 11 06 00.33 -08 30 13.7 o 691