2018UA help
Last update: 2026-07-30 14:25 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
61200.0000
1-sigma variation
Unit
MJD
Semimajor Axis
Value
1.390454
1-sigma variation
0.000894
Unit
Eccentricity (e)
Value
0.447506
1-sigma variation
0.000341
Unit
-
Inclination (i)
Value
2.6439
1-sigma variation
0.0040
Unit
Long. of Ascending Node (Ω)
Value
205.4539
1-sigma variation
0.0160
Unit
Arg. of Perihelion (ω)
Value
255.5025
1-sigma variation
0.0379
Unit
Mean Anomaly (M)
Value
206.25170
1-sigma variation
1.19304
Unit
Perihelion distance
Value
0.768218
1-sigma variation
Unit
Aphelion distance
Value
2.012691
1-sigma variation
Unit
Asc. Node-Earth Sep.
Value
0.249923
1-sigma variation
Unit
Desc. Node-Earth Sep.
Value
0.002804
1-sigma variation
Unit
MOID
Value
0.000344
1-sigma variation
Unit
Orbit Period
Value
598.8714
1-sigma variation
Unit
U parameter
Value
7.9
1-sigma variation
Unit
-
Covariance Matrix
aeiΩωM
a7.99762E-73.05215E-73.54402E-61.42930E-5-3.37860E-5-1.06693E-3
e3.05215E-71.16613E-71.35114E-65.45306E-6-1.28656E-5-4.07179E-4
i3.54402E-61.35114E-61.58317E-56.33714E-5-1.50025E-4-4.72788E-3
Ω1.42930E-55.45306E-66.33714E-52.55462E-4-6.04153E-4-1.90677E-2
ω-3.37860E-5-1.28656E-5-1.50025E-4-6.04153E-41.43323E-34.50714E-2
M-1.06693E-3-4.07179E-4-4.72788E-3-1.90677E-24.50714E-21.42335E0
Date of computation: 2026-07-30 14:25 UTC
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