2212 Hephaistos help
Last update: 2025-03-28 09:30 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
60800.0000
1-sigma variation
Unit
MJD
Semimajor Axis
Value
2.167392
1-sigma variation
3.935E-9
Unit
Eccentricity (e)
Value
0.835085
1-sigma variation
2.158E-8
Unit
-
Inclination (i)
Value
11.2268
1-sigma variation
4.517E-6
Unit
Long. of Ascending Node (Ω)
Value
26.7023
1-sigma variation
1.531E-5
Unit
Arg. of Perihelion (ω)
Value
210.3492
1-sigma variation
1.511E-5
Unit
Mean Anomaly (M)
Value
246.50518
1-sigma variation
2.828E-6
Unit
Perihelion distance
Value
0.357435
1-sigma variation
Unit
Aphelion distance
Value
3.977349
1-sigma variation
Unit
Asc. Node-Earth Sep.
Value
1.351975
1-sigma variation
Unit
Desc. Node-Earth Sep.
Value
-0.622585
1-sigma variation
Unit
MOID
Value
0.112256
1-sigma variation
Unit
Orbit Period
Value
1165.4797
1-sigma variation
Unit
U parameter
Value
0.0
1-sigma variation
Unit
-
Covariance Matrix
aeiΩωM
a1.54835E-17-2.61205E-17-3.90593E-15-2.27402E-152.00067E-15-7.29687E-15
e-2.61205E-174.65776E-16-2.39054E-15-7.18679E-151.34942E-162.94088E-14
i-3.90593E-15-2.39054E-152.04046E-113.89697E-11-3.76949E-111.01060E-12
Ω-2.27402E-15-7.18679E-153.89697E-112.34268E-10-2.28544E-101.03544E-12
ω2.00067E-151.34942E-16-3.76949E-11-2.28544E-102.28406E-10-3.20578E-12
M-7.29687E-152.94088E-141.01060E-121.03544E-12-3.20578E-127.99791E-12
Date of computation: 2025-02-27 12:45 UTC
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