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
2018-10-20 17:54:12 C 20 07 13.73 +58 15 16.1 18.4 u C82
2018-10-20 18:00:16 C 20 07 15.92 +58 16 18.0 18.2 u C82
2018-10-20 18:01:01 C 20 07 16.95 +58 16 16.1 18.0 U B04
2018-10-20 18:06:25 C 20 07 18.66 +58 16 36.9 18.3 u C82
2018-10-20 18:12:45 C 20 07 22.06 +58 16 53.0 18.1 U B04
2018-10-20 18:15:41 C 20 07 24.13 +58 16 56.7 V J95
2018-10-20 18:18:23 C 20 07 23.85 +58 17 14.1 18.1 u C82
2018-10-20 18:20:01 C 20 07 26.05 +58 17 10.4 V J95
2018-10-20 18:24:03 C 20 07 26.30 +58 17 31.8 18.5 u C82
2018-10-20 18:30:19 C 20 07 29.11 +58 17 51.2 18.5 u C82
2018-10-20 18:30:52 C 20 07 30.80 +58 17 43.9 V J95
2018-10-20 18:36:56 C 20 07 33.46 +58 18 03.1 V J95
2018-10-20 19:22:04 C 20 07 52.54 +58 20 28.1 V C95
2018-10-20 19:32:28 C 20 07 57.06 +58 20 59.8 V C95
2018-10-20 19:42:52 C 20 08 01.61 +58 21 31.5 V C95
2018-10-20 19:53:16 C 20 08 06.19 +58 22 03.2 V C95
2018-10-20 19:54:07 C 20 08 06.27 +58 22 04.1 V K63
2018-10-20 19:57:19 C 20 08 07.67 +58 22 13.5 V K63
2018-10-20 20:02:15 C 20 08 09.85 +58 22 27.5 V K63
2018-10-20 20:22:51 C 20 08 20.05 +58 23 30.6 V Z43
2018-10-20 20:26:48 C 20 08 21.38 +58 23 38.1 q C23
2018-10-20 20:27:53 C 20 08 21.92 +58 23 41.6 q C23
2018-10-20 20:28:21 C 20 08 22.46 +58 23 47.1 17.7 V Z43
2018-10-20 20:32:11 C 20 08 23.76 +58 23 54.2 q C23
2018-10-20 20:33:21 C 20 08 24.69 +58 24 02.5 18.2 V Z43
2018-10-20 20:36:30 C 20 08 25.74 +58 24 07.7 q C23
2018-10-20 20:37:35 C 20 08 26.38 +58 24 10.4 q C23
2018-10-20 20:38:21 C 20 08 26.89 +58 24 17.2 18.5 V Z43
2018-10-20 20:39:44 C 20 08 27.15 +58 24 17.6 q C23
2018-10-20 20:40:49 C 20 08 27.63 +58 24 20.5 q C23
2018-10-20 20:43:25 C 20 08 29.12 +58 24 32.9 17.8 V Z43
2018-10-20 20:45:08 C 20 08 29.56 +58 24 33.9 q C23
2018-10-20 20:47:17 C 20 08 30.53 +58 24 40.3 q C23
2018-10-20 20:49:26 C 20 08 31.49 +58 24 47.5 q C23
2018-10-20 20:50:31 C 20 08 31.92 +58 24 49.3 q C23
2018-10-22 01:04:06 C 20 21 24.98 +59 45 30.9 u H21
2018-10-22 01:09:32 C 20 21 27.32 +59 45 45.2 u H21
2018-10-22 01:13:57 C 20 21 29.19 +59 45 56.9 u H21
2018-10-22 01:18:11 C 20 21 31.02 +59 46 07.7 u H21
2018-10-22 01:22:22 C 20 21 32.83 +59 46 18.2 u H21
2018-10-22 01:34:39 C 20 21 38.08 +59 46 49.9 u H21
2018-10-24 00:36:21 C 20 42 38.30 +61 34 21.4 u H21
2018-10-24 00:40:08 C 20 42 39.89 +61 34 28.9 u H21
2018-10-24 21:53:44 C 20 51 51.83 +62 13 33.3 V Z80
2018-10-24 21:59:57 C 20 51 54.55 +62 13 43.1 V Z80
2018-10-24 22:07:26 C 20 51 57.57 +62 13 55.1 V Z80
2018-11-07 02:43:51 C 22 46 58.13 +65 28 10.9 o 711
2018-11-07 02:52:54 C 22 47 00.60 +65 28 10.1 o 711
2018-11-07 02:57:16 C 22 47 01.77 +65 28 09.7 o 711
2018-11-10 07:31:23 C 23 08 15.57 +65 14 06.6 o 291