NEODyS-2
Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1999HD1 ∴ Orbital info ∴ Epoch 57603 MJD
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(488474) 1999HD1  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 488474.eq0)
Keplerian elements
(Epoch 57603.5 MJD)
Value 1-σ variation Units
a 1.13137 3.013e-09 au
e 0.417893 1.234e-07
i 18.217 1.128e-05 deg
Ω 209.885 1.483e-05 deg
ω 147.942 2.758e-05 deg
M 23.739 3.726e-05 deg
Other useful info
Absolute Magnitude (H)    20.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.6586 au
Aphelion distance 1.6042 au
Asc. node-Earth separation 0.44004 au
Desc. node-Earth separation -0.30595 au
Earth MOID 0.21625 au
Orbital period 439.547 days
Date of orbit computation   mar 17 13:38

Covariance matrix
9.07969582E-182.32110676E-16-2.25340852E-164.16151611E-162.84131816E-14-4.43560344E-14
2.32110676E-161.52368608E-142.21188172E-13-1.47149521E-131.14350794E-12-1.08557060E-12
-2.25340852E-162.21188172E-131.27188943E-10-5.53919902E-119.01698642E-11-6.70346539E-11
4.16151611E-16-1.47149521E-13-5.53919902E-112.19960722E-10-2.83524476E-101.45960431E-10
2.84131816E-141.14350794E-129.01698642E-11-2.83524476E-107.60825239E-10-8.75676573E-10
-4.43560344E-14-1.08557060E-12-6.70346539E-111.45960431E-10-8.75676573E-101.38811826E-09

Correlation matrix
1.000000000.62403898-0.006631010.009312010.34185486-0.39509709
0.624038981.000000000.15888740-0.080378250.33585280-0.23604624
-0.006631010.158887401.00000000-0.331169030.28986400-0.15953701
0.00931201-0.08037825-0.331169031.00000000-0.693067500.26414922
0.341854860.335852800.28986400-0.693067501.00000000-0.85209505
-0.39509709-0.23604624-0.159537010.26414922-0.852095051.00000000