2018 UA1

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6240927868 ± 2.74e-08
Semi-major axis (a)2.5284221627 AU ± 5.16e-09
Inclination (i)18.44643034° ± 1.04e-05
Long. of Asc. Node (Ω)358.93686062° ± 3.15e-05
Arg. of Perihelion (ω)348.28705109° ± 3.42e-05
Mean Anomaly (M)282.38448573° ± 2.33e-06
Mean Motion (n)0.2451533846°/day ± 7.50e-10
Perihelion dist (q)0.95045213 AU ± 6.92e-08
Aphelion dist (Q)4.10639220 AU ± 6.97e-08
Orbital Period4.02044738 yr ± 1.23e-08
Physical Parameters
H (abs. magnitude)19.91
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.250″
Uncertainty0
Orbit TypeApollo
MOID0.045153 AU
Observations Used215
Oppositions9
Arc Total2010-2022
First Observation Used2010-10-23
Last Observation Used2022-11-23
Observations (230)
Date Type RA Dec Mag Band Observatory
2018-10-17 18:19:02 C 19 34 08.50 +53 40 52.4 V K30
2018-10-17 18:23:19 C 19 34 10.33 +53 41 12.0 V K30
2018-10-17 18:45:05 C 19 34 18.84 +53 42 47.2 t L04
2018-10-17 18:49:07 C 19 34 20.65 +53 43 05.7 t L04
2018-10-17 19:03:19 C 19 34 26.99 +53 44 09.9 t L04
2018-10-17 19:12:43 C 19 34 31.20 +53 44 52.1 t L04
2018-10-17 21:24:43 C 19 35 32.05 +53 55 17.4 U G40
2018-10-17 21:34:52 C 19 35 36.51 +53 56 02.2 U G40
2018-10-18 00:20:24 C 19 36 55.68 +54 08 32.4 q W34
2018-10-18 00:35:35 C 19 37 02.42 +54 09 39.2 q W34
2018-10-18 00:36:41 C 19 37 02.90 +54 09 44.5 q W34
2018-10-18 00:38:00 C 19 37 03.49 +54 09 49.6 q W34
2018-10-18 00:54:25 C 19 37 11.34 +54 10 59.4 u H21
2018-10-18 00:59:02 C 19 37 13.38 +54 11 19.8 u H21
2018-10-18 01:03:39 C 19 37 15.39 +54 11 40.3 u H21
2018-10-18 01:07:21 C 19 37 17.01 +54 11 56.5 u H21
2018-10-18 02:05:40 C 19 37 41.97 +54 16 03.3 V 932
2018-10-18 02:12:10 C 19 37 44.88 +54 16 31.3 V 932
2018-10-18 02:18:41 C 19 37 47.80 +54 16 59.4 V 932
2018-10-18 17:27:30 C 19 44 52.93 +55 21 46.5 q K63
2018-10-18 17:33:33 C 19 44 55.64 +55 22 11.3 q K63
2018-10-18 17:39:17 C 19 44 58.19 +55 22 34.5 q K63
2018-10-18 18:13:42 C 19 45 14.45 +55 24 47.4 V J95
2018-10-18 18:18:10 C 19 45 16.42 +55 25 05.6 V J95
2018-10-18 18:22:36 C 19 45 18.44 +55 25 23.6 V J95
2018-10-18 19:16:31 C 19 45 41.41 +55 29 04.3 V K38
2018-10-18 19:27:19 C 19 45 46.23 +55 29 49.5 q C77
2018-10-18 19:32:35 C 19 45 49.27 +55 30 08.7 17.9 V Z43
2018-10-18 19:33:06 C 19 45 48.78 +55 30 12.5 q C77
2018-10-18 19:35:37 C 19 45 48.89 +55 30 08.2 q 585
2018-10-18 19:35:48 C 19 45 48.97 +55 30 08.7 q 585
2018-10-18 19:36:41 C 19 45 49.34 +55 30 12.3 q 585
2018-10-18 19:36:45 C 19 45 50.39 +55 30 24.7 V K38
2018-10-18 19:36:52 C 19 45 49.46 +55 30 12.9 q 585
2018-10-18 19:38:08 C 19 45 50.00 +55 30 18.2 q 585
2018-10-18 19:38:52 C 19 45 50.25 +55 30 21.2 q 585
2018-10-18 19:39:01 C 19 45 51.45 +55 30 35.7 q C77
2018-10-18 19:39:03 C 19 45 51.14 +55 30 35.5 V 104
2018-10-18 19:39:57 C 19 45 50.78 +55 30 25.4 q 585
2018-10-18 19:40:03 C 19 45 50.90 +55 30 25.6 q 585
2018-10-18 19:40:52 C 19 45 51.22 +55 30 28.9 q 585
2018-10-18 19:41:14 C 19 45 51.45 +55 30 30.2 q 585
2018-10-18 19:43:20 C 19 45 53.05 +55 30 52.1 V 104
2018-10-18 19:43:58 C 19 45 54.46 +55 30 54.7 18.0 V Z43
2018-10-18 19:48:20 C 19 45 55.32 +55 31 12.0 V 104
2018-10-18 19:56:42 C 19 45 59.30 +55 31 43.5 V K38
2018-10-18 19:56:56 C 19 46 00.25 +55 31 46.9 18.2 V Z43
2018-10-18 20:02:56 C 19 46 02.75 +55 32 10.4 18.1 V Z43
2018-10-18 20:07:38 C 19 46 04.20 +55 32 26.8 V 204
2018-10-18 20:13:40 C 19 46 06.89 +55 32 50.7 V 204