def search_orbit(**kwargs):
    '''
    Query based on orbital elements:

    http://asterank.com/api/skymorph/search_orbit?<params>
    epoch	Epoch ([M]JD or ISO)
    ecc	eccentricity
    per	Perihelion distance (AU)
    per_date	Perihelion date ([M]JD or ISO)
    om	Longitude of ascending node (deg)
    w	Argument of perihelion (deg)
    i	Inclination (deg)
    H	Absolute magnitude

    '''

    base_url = "http://asterank.com/api/skymorph/search_orbit?"

    for key in kwargs:
        base_url += str(key) + "=" + kwargs[key] + "&"

        # remove the unnecessary & at the end
    base_url = base_url[:-1]

    return dispatch_http_get(base_url)