RecursionError code

def neocp_confirmation(payload):
    r=requests.get('https://www.minorplanetcenter.net/Extended_Files/neocp.json')
    data=r.json()
    lat = payload.latitude
    long = payload.longitude
    location = EarthLocation.from_geodetic(lon=float(long), lat=float(lat))
    observing_date = Time(datetime.datetime.utcnow())
    altaz = AltAz(location=location, obstime=observing_date)
    result = []
    for item in data:
        coord = SkyCoord(float(item["R.A."]) * u.deg, float(item["Decl."]) * u.deg)
        coord_altaz = coord.transform_to(altaz)
        print(item)
        # if int(
        #     item["Score"] > payload.min_score
        #     and is_visible(payload, coord, observing_date)
        #     and float(item["V"] < payload.max_magnitude)
        # ):
        asteroid = {
            "Temp_Desig": item["Temp_Desig"],
            "Score": int(item["Score"]),
            "R.A.": coord.ra.to_string(u.hour),
            "Dec.": coord.dec.to_string(u.degree, alwayssign=True),
            "Alt.": coord_altaz.alt, # this makes RecursionError
            "V": float(item["V"]),
            "N.Obs": int(item["NObs"]),
            "Arc": float(item["Arc"]),
            "Not_Seen_days": float(item["Not_Seen_dys"]),
        }
        # print(asteroid)
        result.append(asteroid)
    return result