2018UA help
Last update: 2025-09-10 00:30 UTC
Epoch
Orbit properties
  • Epoch
  • Semimajor Axis
  • Eccentricity (e)
  • Inclination (i)
  • Long. of Ascending Node (Ω)
  • Arg. of Perihelion (ω)
  • Mean Anomaly (M)
  • Perihelion distance
  • Aphelion distance
  • Asc. Node-Earth Sep.
  • Desc. Node-Earth Sep.
  • MOID
  • Orbit Period
  • U parameter
Value
1-sigma variation
Unit
Epoch
Value
61000.0000
1-sigma variation
Unit
MJD
Semimajor Axis
Value
1.390377
1-sigma variation
0.000893
Unit
Eccentricity (e)
Value
0.447558
1-sigma variation
0.000342
Unit
-
Inclination (i)
Value
2.6440
1-sigma variation
0.0040
Unit
Long. of Ascending Node (Ω)
Value
205.4611
1-sigma variation
0.0159
Unit
Arg. of Perihelion (ω)
Value
255.4871
1-sigma variation
0.0378
Unit
Mean Anomaly (M)
Value
86.03568
1-sigma variation
1.07729
Unit
Perihelion distance
Value
0.768102
1-sigma variation
Unit
Aphelion distance
Value
2.012651
1-sigma variation
Unit
Asc. Node-Earth Sep.
Value
0.247924
1-sigma variation
Unit
Desc. Node-Earth Sep.
Value
0.003154
1-sigma variation
Unit
MOID
Value
0.000387
1-sigma variation
Unit
Orbit Period
Value
598.8211
1-sigma variation
Unit
U parameter
Value
7.9
1-sigma variation
Unit
-
Covariance Matrix
aeiΩωM
a7.97523E-73.05160E-73.54120E-61.42187E-5-3.37175E-5-9.62062E-4
e3.05160E-71.16898E-71.35362E-65.43896E-6-1.28734E-5-3.68124E-4
i3.54120E-61.35362E-61.58509E-56.31686E-5-1.50022E-4-4.27175E-3
Ω1.42187E-55.43896E-66.31686E-52.53521E-4-6.01477E-4-1.71521E-2
ω-3.37175E-5-1.28734E-5-1.50022E-4-6.01477E-41.43144E-34.06728E-2
M-9.62062E-4-3.68124E-4-4.27175E-3-1.71521E-24.06728E-21.16055E0
Date of computation: 2025-09-10 00:30 UTC
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