/**
* Creates a new JPL DE ephemeris reader
*
* @param DE $de JPL DE version to load
* @param float $jde Optional initial JDE in TDB
*/
public function __construct(DE $de = null, $jde = 2451545.5)
{
// Set DE version if provided otherwise load default
$this->de = $de ? $de : DE::parse(static::DE_DEFAULT);
// Get the DE storage path
$this->path = $this->getStoragePath();
// Parse DE header file
$this->header = new Header($this->selectHeaderFile());
// Set initial JDE of instance
$this->jde($jde);
}
