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NEODyS ∴ Objects ∴ Hephaistos ∴ Orbital info ∴ Epoch 57789 MJD
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(2212) Hephaistos  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 2212.eq0)
Keplerian elements
(Epoch 57789.8 MJD)
Value 1-σ variation Units
a 2.15958 3.858e-09 au
e 0.837641 2.147e-08
i 11.56 4.649e-06 deg
Ω 27.562 1.485e-05 deg
ω 209.347 1.467e-05 deg
M 33.177 2.154e-06 deg
Other useful info
Absolute Magnitude (H)    13.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.3506 au
Aphelion distance 3.9685 au
Asc. node-Earth separation 1.39194 au
Desc. node-Earth separation -0.63096 au
Earth MOID 0.11614 au
Orbital period 1159.18 days
Date of orbit computation   feb 27 11:49

Covariance matrix
1.48827834E-17-2.87585504E-17-2.97211346E-15-7.88613431E-157.77970252E-152.00763868E-15
-2.87585504E-174.61108137E-16-3.10496748E-15-3.84490955E-15-4.44484763E-151.21432495E-14
-2.97211346E-15-3.10496748E-152.16090392E-113.53156542E-11-3.38346684E-11-9.25472108E-13
-7.88613431E-15-3.84490955E-153.53156542E-112.20579268E-10-2.14743046E-10-2.36760688E-12
7.77970252E-15-4.44484763E-15-3.38346684E-11-2.14743046E-102.15067238E-102.37249401E-13
2.00763868E-151.21432495E-14-9.25472108E-13-2.36760688E-122.37249401E-134.64029036E-12

Correlation matrix
1.00000000-0.34715507-0.16573170-0.137638440.137509840.24158552
-0.347155071.00000000-0.03110555-0.01205598-0.014114590.26251912
-0.16573170-0.031105551.000000000.51152537-0.49631462-0.09242150
-0.13763844-0.012055980.511525371.00000000-0.98593807-0.07400391
0.13750984-0.01411459-0.49631462-0.985938071.000000000.00751009
0.241585520.26251912-0.09242150-0.074003910.007510091.00000000