def parse_satellite_name(sat_str):
    """Parses satellite name from str."""

    sat_str_ = sat_str.replace('-','').replace('_','').replace(' ','')

    if sat_str_.lower() in ['sta', 'stereoa', 'stereoahead']:
        return 'stereo-ahead'
    elif sat_str_.lower() in ['stb', 'stereob', 'stereobehind']:
        return 'stereo-behind'