6491 1991OA 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
2.504111
1-sigma variation
2.567E-8
Unit
Eccentricity (e)
Value
0.592099
1-sigma variation
3.254E-8
Unit
-
Inclination (i)
Value
6.1533
1-sigma variation
7.334E-6
Unit
Long. of Ascending Node (Ω)
Value
299.9832
1-sigma variation
0.0001
Unit
Arg. of Perihelion (ω)
Value
326.2086
1-sigma variation
0.0001
Unit
Mean Anomaly (M)
Value
240.15202
1-sigma variation
0.00001
Unit
Perihelion distance
Value
1.021429
1-sigma variation
Unit
Aphelion distance
Value
3.986793
1-sigma variation
Unit
Asc. Node-Earth Sep.
Value
0.072783
1-sigma variation
Unit
Desc. Node-Earth Sep.
Value
2.216417
1-sigma variation
Unit
MOID
Value
0.037330
1-sigma variation
Unit
Orbit Period
Value
1447.3675
1-sigma variation
Unit
U parameter
Value
0.0
1-sigma variation
Unit
-
Covariance Matrix
aeiΩωM
a6.58757E-16-7.04787E-17-1.65539E-15-5.90920E-14-1.19383E-13-1.17294E-13
e-7.04787E-171.05855E-15-5.06801E-14-4.23934E-134.33103E-13-1.61240E-14
i-1.65539E-15-5.06801E-145.37801E-112.37886E-10-2.37770E-106.99614E-12
Ω-5.90920E-14-4.23934E-132.37886E-104.38185E-9-4.35568E-95.79395E-11
ω-1.19383E-134.33103E-13-2.37770E-10-4.35568E-94.38902E-9-4.88322E-11
M-1.17294E-13-1.61240E-146.99614E-125.79395E-11-4.88322E-117.03622E-11
Date of computation: 2025-09-10 00:30 UTC
Note: The ASCII file is in a format suitable for Orbfit input.
Download ASCII file: