12923 Zephyr help
Last update: 2026-06-27 12:46 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
1.961768
1-sigma variation
2.190E-9
Unit
Eccentricity (e)
Value
0.493061
1-sigma variation
1.609E-8
Unit
-
Inclination (i)
Value
5.3118
1-sigma variation
2.300E-6
Unit
Long. of Ascending Node (Ω)
Value
168.0724
1-sigma variation
2.404E-5
Unit
Arg. of Perihelion (ω)
Value
147.2337
1-sigma variation
2.411E-5
Unit
Mean Anomaly (M)
Value
266.59627
1-sigma variation
2.561E-6
Unit
Perihelion distance
Value
0.994497
1-sigma variation
Unit
Aphelion distance
Value
2.929039
1-sigma variation
Unit
Asc. Node-Earth Sep.
Value
1.543597
1-sigma variation
Unit
Desc. Node-Earth Sep.
Value
0.042369
1-sigma variation
Unit
MOID
Value
0.019629
1-sigma variation
Unit
Orbit Period
Value
1003.6214
1-sigma variation
Unit
U parameter
Value
0.0
1-sigma variation
Unit
-
Covariance Matrix
aeiΩωM
a4.79588E-187.63736E-18-5.78029E-172.23907E-15-2.64570E-15-2.64270E-15
e7.63736E-182.58843E-168.95378E-161.97165E-14-2.69201E-15-1.06638E-14
i-5.78029E-178.95378E-165.29126E-121.62425E-11-1.58382E-11-3.91913E-13
Ω2.23907E-151.97165E-141.62425E-115.78038E-10-5.74625E-10-2.04912E-13
ω-2.64570E-15-2.69201E-15-1.58382E-11-5.74625E-105.81509E-10-5.38767E-12
M-2.64270E-15-1.06638E-14-3.91913E-13-2.04912E-13-5.38767E-126.55903E-12
Date of computation: 2026-06-27 12:46 UTC
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