def get_wanted_position(prefix='', rconn=None):
    """Return wanted Telescope RA, DEC as two floats in degrees
       On failure returns None"""
    if rconn is None:
        return
    try:
        wanted_ra = float(rconn.get(prefix+'wanted_ra').decode('utf-8'))
        wanted_dec = float(rconn.get(prefix+'wanted_dec').decode('utf-8'))
    except:
        return
    return wanted_ra, wanted_dec