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AstDyS ∴ Objects ∴ 1981EP21 ∴ Orbital info ∴ Epoch epochXXX
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(129443) 1981EP21  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 129443.eq1)
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.54842 1.415e-08 au
e 0.246579 7.563e-08
i 11.373 5.39e-06 deg
Ω 357.741 3.863e-05 deg
ω 261.166 3.929e-05 deg
M 151.204 1.435e-05 deg
Other useful info
Absolute Magnitude (H)    15.8 mag
Slope parameter (G)    0.15 mag
Perihelion 1.92 au
Aphelion 3.1768 au
Asc. node-Earth separation 1.48413 au
Desc. node-Earth separation 1.3109 au
Earth MOID 0.94512 au
Orbital period 1485.95 days
Date of orbit computation  apr 23 20:15
Correlation matrix
1.00000000-0.422201660.01672364-0.021434710.06767195-0.51360015
-0.422201661.00000000-0.032552330.02087340-0.039641770.17960297
0.01672364-0.032552331.000000000.14363836-0.13591427-0.01841928
-0.021434710.020873400.143638361.00000000-0.95376200-0.01534039
0.06767195-0.03964177-0.13591427-0.953762001.00000000-0.24629011
-0.513600150.17960297-0.01841928-0.01534039-0.246290111.00000000
Covariance matrix
2.00302790E-16-4.51894464E-161.27567544E-15-1.17199199E-143.76312086E-14-1.04298173E-13
-4.51894464E-165.71935655E-15-1.32684919E-146.09860112E-14-1.17793828E-131.94892513E-13
1.27567544E-15-1.32684919E-142.90490400E-112.99088589E-11-2.87823927E-11-1.42444800E-12
-1.17199199E-146.09860112E-142.99088589E-111.49254352E-09-1.44776963E-09-8.50369805E-12
3.76312086E-14-1.17793828E-13-2.87823927E-11-1.44776963E-091.54380303E-09-1.38851628E-10
-1.04298173E-131.94892513E-13-1.42444800E-12-8.50369805E-12-1.38851628E-102.05880932E-10