12923 Zephyr 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
1.962225
1-sigma variation
2.231E-9
Unit
Eccentricity (e)
Value
0.492742
1-sigma variation
1.610E-8
Unit
-
Inclination (i)
Value
5.3095
1-sigma variation
2.348E-6
Unit
Long. of Ascending Node (Ω)
Value
168.0792
1-sigma variation
2.555E-5
Unit
Arg. of Perihelion (ω)
Value
147.2109
1-sigma variation
2.562E-5
Unit
Mean Anomaly (M)
Value
194.87678
1-sigma variation
2.540E-6
Unit
Perihelion distance
Value
0.995354
1-sigma variation
Unit
Aphelion distance
Value
2.929096
1-sigma variation
Unit
Asc. Node-Earth Sep.
Value
1.542787
1-sigma variation
Unit
Desc. Node-Earth Sep.
Value
0.043175
1-sigma variation
Unit
MOID
Value
0.019955
1-sigma variation
Unit
Orbit Period
Value
1003.9722
1-sigma variation
Unit
U parameter
Value
0.0
1-sigma variation
Unit
-
Covariance Matrix
aeiΩωM
a4.97544E-187.37986E-18-7.25726E-172.19555E-15-3.08868E-15-2.21240E-15
e7.37986E-182.59246E-161.03553E-152.21301E-14-4.51646E-15-1.04788E-14
i-7.25726E-171.03553E-155.51221E-122.02820E-11-1.98290E-11-4.11316E-13
Ω2.19555E-152.21301E-142.02820E-116.52684E-10-6.48772E-10-2.34471E-13
ω-3.08868E-15-4.51646E-15-1.98290E-11-6.48772E-106.56367E-10-5.82449E-12
M-2.21240E-15-1.04788E-14-4.11316E-13-2.34471E-13-5.82449E-126.45005E-12
Date of computation: 2025-09-10 00:30 UTC
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