2212 Hephaistos help
Last update: 2025-10-04 13:00 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
2.167588
1-sigma variation
3.973E-9
Unit
Eccentricity (e)
Value
0.834660
1-sigma variation
2.154E-8
Unit
-
Inclination (i)
Value
11.2025
1-sigma variation
4.472E-6
Unit
Long. of Ascending Node (Ω)
Value
26.5655
1-sigma variation
1.535E-5
Unit
Arg. of Perihelion (ω)
Value
210.4630
1-sigma variation
1.516E-5
Unit
Mean Anomaly (M)
Value
308.24302
1-sigma variation
2.945E-6
Unit
Perihelion distance
Value
0.358388
1-sigma variation
Unit
Aphelion distance
Value
3.976787
1-sigma variation
Unit
Asc. Node-Earth Sep.
Value
1.347010
1-sigma variation
Unit
Desc. Node-Earth Sep.
Value
-0.622705
1-sigma variation
Unit
MOID
Value
0.111943
1-sigma variation
Unit
Orbit Period
Value
1165.6373
1-sigma variation
Unit
U parameter
Value
0.0
1-sigma variation
Unit
-
Covariance Matrix
aeiΩωM
a1.57886E-17-2.57974E-17-3.91162E-15-2.73794E-152.24320E-15-8.01232E-15
e-2.57974E-174.63851E-16-2.06709E-15-6.78553E-157.60575E-173.06716E-14
i-3.91162E-15-2.06709E-151.99990E-113.88661E-11-3.76223E-111.17975E-12
Ω-2.73794E-15-6.78553E-153.88661E-112.35615E-10-2.29942E-101.15029E-12
ω2.24320E-157.60575E-17-3.76223E-11-2.29942E-102.29808E-10-3.32007E-12
M-8.01232E-153.06716E-141.17975E-121.15029E-12-3.32007E-128.67448E-12
Date of computation: 2025-10-04 13:00 UTC
Note: The ASCII file is in a format suitable for Orbfit input.
Download ASCII file: