2018 XA

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6766465535 ± 2.00e+00
Semi-major axis (a)2.5958326403 AU ± 3.00e+00
Inclination (i)3.95354985° ± 4.00e+00
Long. of Asc. Node (Ω)252.94336628° ± 5.00e+00
Arg. of Perihelion (ω)121.83180206° ± 6.00e+00
Mean Anomaly (M)248.90691665° ± 1.76e-01
Mean Motion (n)0.2356311200°/day ± 4.08e-01
Perihelion dist (q)0.83936380 AU ± 5.28e+00
Aphelion dist (Q)4.35275100 AU ± 7.23e+00
Orbital Period4.18284180 yr ± 7.25e+00
Physical Parameters
H (abs. magnitude)23.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.347″
Uncertainty3
Orbit TypeApollo
MOID0.008288 AU
Observations Used151
Oppositions1
Arc Total2018-2019
First Observation Used
Last Observation Used2019-01-03
Observations (154)
Date Type RA Dec Mag Band Observatory
2018-12-09 01:34:19 C 04 49 30.97 +19 23 01.1 V 204
2018-12-09 01:41:12 C 04 49 32.70 +19 22 52.6 V 204
2018-12-09 02:44:21 C 04 49 58.95 +19 21 55.7 V I52
2018-12-09 02:46:32 C 04 49 59.55 +19 21 52.8 V I52
2018-12-09 02:48:42 C 04 50 00.12 +19 21 51.2 V I52
2018-12-09 07:45:13 C 04 51 11.43 +19 16 49.3 o 691
2018-12-09 08:04:45 C 04 51 15.93 +19 16 28.1 o 691
2018-12-09 08:23:53 C 04 51 20.34 +19 16 07.3 o 691
2018-12-09 11:39:14 C 04 52 08.970 +19 13 04.91 V T12
2018-12-09 11:39:57 C 04 52 09.125 +19 13 04.11 V T12
2018-12-10 23:57:48 C 04 59 58.23 +18 39 57.5 V C95
2018-12-11 00:00:53 C 04 59 59.07 +18 39 56.0 V C95
2018-12-11 00:03:57 C 04 59 59.43 +18 39 53.5 V C95
2018-12-11 00:16:42 C 05 00 01.16 +18 39 41.9 q 160
2018-12-11 00:20:46 C 05 00 02.03 +18 39 38.5 q 160
2018-12-11 00:24:56 C 05 00 02.82 +18 39 35.5 q 160
2018-12-11 06:07:50 C 05 01 05.70 +18 35 26.9 q H45
2018-12-11 06:19:46 C 05 01 07.58 +18 35 18.1 q H45
2018-12-11 06:21:50 C 05 01 07.87 +18 35 16.4 q H45
2018-12-11 06:23:54 C 05 01 08.18 +18 35 14.9 q H45
2018-12-11 06:26:01 C 05 01 08.48 +18 35 13.0 q H45
2018-12-11 06:27:59 C 05 01 08.89 +18 35 11.3 q H45
2018-12-11 06:30:22 C 05 01 09.23 +18 35 09.7 q H45
2018-12-11 06:32:42 C 05 01 09.55 +18 35 07.9 q H45
2018-12-12 06:37:19 C 05 05 04.06 +18 18 42.0 o 691
2018-12-12 06:45:31 C 05 05 05.11 +18 18 36.8 o 691
2018-12-13 08:31:24 C 05 08 32.95 +18 03 41.4 V G96
2018-12-13 08:38:43 C 05 08 33.72 +18 03 36.9 V G96
2018-12-13 08:46:00 C 05 08 34.49 +18 03 32.5 V G96
2018-12-13 08:53:17 C 05 08 35.29 +18 03 28.3 V G96
2018-12-13 10:32:18 C 05 08 48.910 +18 02 54.30 V T12
2018-12-13 10:33:20 C 05 08 49.015 +18 02 53.75 V T12
2018-12-14 14:58:21 C 05 12 03.21 +17 49 02.7 q D29
2018-12-14 15:17:27 C 05 12 04.85 +17 48 54.7 q D29
2018-12-14 15:36:32 C 05 12 06.49 +17 48 47.2 q D29
2018-12-17 06:40:32 C 05 17 37.12 +17 26 06.0 19.9 q H21
2018-12-17 06:58:06 C 05 17 38.19 +17 26 00.5 q H21
2018-12-17 11:20:53 C 05 17 55.73 +17 24 45.1 o 291
2018-12-17 11:55:48 C 05 17 58.10 +17 24 33.3 o 291
2018-12-18 06:24:19 C 05 19 18.83 +17 19 47.3 o 291
2018-12-18 06:37:16 C 05 19 19.51 +17 19 43.9 o 291
2018-12-18 06:50:14 C 05 19 20.22 +17 19 40.8 o 291
2018-12-19 07:12:57 C 05 20 52.40 +17 13 59.6 o 291
2018-12-19 08:07:01 C 05 20 54.95 +17 13 47.9 o 291
2018-12-19 09:25:39 C 05 20 58.73 +17 13 28.8 o 291
2018-12-19 09:28:54 C 05 20 58.90 +17 13 28.0 o 291
2018-12-19 09:32:09 C 05 20 59.06 +17 13 27.4 o 291
2018-12-21 05:52:19 C 05 23 26.95 +17 05 17.2 o 691
2018-12-21 06:27:46 C 05 23 28.31 +17 05 12.1 o 691
2018-12-24 08:32:47 C 05 26 45.23 +16 56 00.6 o 695