{
  "AT2020cwy": {
    "schema": "https://github.com/astrocatalogs/supernovae/blob/d3ef5fc/SCHEMA.md",
    "name": "AT2020cwy",
    "sources": [
      {
        "name": "Transient Name Server",
        "url": "https://www.wis-tns.org/object/2020cwy",
        "alias": "1"
      },
      {
        "name": "2020TNSTR.555....1N",
        "bibcode": "2020TNSTR.555....1N",
        "reference": "J. Nordin",
        "alias": "2"
      },
      {
        "name": "The Open Supernova Catalog",
        "bibcode": "2017ApJ...835...64G",
        "reference": "Guillochon et al. (2017)",
        "secondary": true,
        "url": "https://sne.space",
        "alias": "3"
      },
      {
        "name": "ALeRCE / ZTF",
        "alias": "4",
        "url": "https://alerce.online/object/ZTF20aankywm",
        "secondary": true
      }
    ],
    "alias": [
      {
        "value": "2020cwy",
        "source": "1"
      },
      {
        "value": "AT2020cwy",
        "source": "1"
      },
      {
        "value": "SN2020cwy",
        "source": "1"
      },
      {
        "value": "AT 2020cwy",
        "source": "1"
      },
      {
        "value": "ATLAS20hqg",
        "source": "1"
      },
      {
        "value": "ZTF20aankywm",
        "source": "1"
      }
    ],
    "ra": [
      {
        "value": "17:01:28.455",
        "u_value": "hours",
        "source": "1"
      }
    ],
    "dec": [
      {
        "value": "+38:17:00.04",
        "u_value": "degrees",
        "source": "1"
      }
    ],
    "discoverer": [
      {
        "value": "J. Nordin, V. Brinnel, M. Giomi, J. van Santen (HU Berlin), A. Gal-Yam, O. Yaron, S. Schulze (Weizmann) on behalf of ZTF",
        "source": "1"
      }
    ],
    "discoverdate": [
      {
        "value": "2020/02/14",
        "source": "1"
      }
    ],
    "discoverymag": [
      {
        "value": "19.78",
        "kind": "discovery",
        "source": "2",
        "band": "r",
        "time": "58893.54266",
        "u_time": "MJD",
        "e_value": "0.1032"
      }
    ],
    "photometry": [
      {
        "time": "58873.53416",
        "magnitude": "20.2569",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58873.55145",
        "magnitude": "20.6451",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58876.53398",
        "magnitude": "20.6436",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58876.55826",
        "magnitude": "20.5534",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58879.50602",
        "magnitude": "19.8025",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58879.54833",
        "magnitude": "19.2109",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58883.48556",
        "magnitude": "19.7339",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58883.55762",
        "magnitude": "19.8179",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58886.49646",
        "magnitude": "19.6656",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58886.55845",
        "magnitude": "20.2571",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58890.48490",
        "magnitude": "18.8494",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58890.54819",
        "magnitude": "19.0109",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58893.48303",
        "magnitude": "19.9483",
        "upperlimit": true,
        "kind": "non_detection",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "survey": "ZTF",
        "provider": "ALeRCE"
      },
      {
        "time": "58893.54267",
        "magnitude": "19.7834",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1139542670115015001",
        "e_magnitude": "0.1801",
        "ra": "255.368517",
        "dec": "38.283363"
      },
      {
        "time": "58898.53692",
        "magnitude": "19.4394",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1144536920115015002",
        "e_magnitude": "0.1313",
        "ra": "255.368557",
        "dec": "38.283352"
      },
      {
        "time": "58898.55884",
        "magnitude": "19.3727",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1144558840115015003",
        "e_magnitude": "0.1032",
        "ra": "255.368615",
        "dec": "38.283319"
      },
      {
        "time": "58904.52605",
        "magnitude": "19.5964",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1150526050115015001",
        "e_magnitude": "0.1488",
        "ra": "255.368572",
        "dec": "38.283315"
      },
      {
        "time": "58904.55578",
        "magnitude": "19.4753",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1150555770115015002",
        "e_magnitude": "0.2139",
        "ra": "255.368530",
        "dec": "38.283344"
      },
      {
        "time": "58908.51205",
        "magnitude": "19.4714",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1154512040115015001",
        "e_magnitude": "0.1130",
        "ra": "255.368620",
        "dec": "38.283324"
      },
      {
        "time": "58908.53992",
        "magnitude": "19.6735",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1154539910115015004",
        "e_magnitude": "0.1228",
        "ra": "255.368583",
        "dec": "38.283336"
      },
      {
        "time": "58911.51451",
        "magnitude": "19.8513",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1157514510115015000",
        "e_magnitude": "0.2622",
        "ra": "255.368571",
        "dec": "38.283280"
      },
      {
        "time": "58911.53414",
        "magnitude": "19.9227",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1157534140115015001",
        "e_magnitude": "0.1699",
        "ra": "255.368606",
        "dec": "38.283330"
      },
      {
        "time": "58914.49492",
        "magnitude": "19.9163",
        "band": "g",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1160494910115015003",
        "e_magnitude": "0.1884",
        "ra": "255.368675",
        "dec": "38.283302"
      },
      {
        "time": "58914.53366",
        "magnitude": "19.9791",
        "band": "r",
        "telescope": "ZTF",
        "instrument": "ZTF",
        "u_time": "MJD",
        "source": "4",
        "kind": "detection",
        "survey": "ZTF",
        "provider": "ALeRCE",
        "candid": "1160533650115015004",
        "e_magnitude": "0.1616",
        "ra": "255.368610",
        "dec": "38.283307"
      }
    ],
    "photometry_ingest": {
      "alerce": {
        "status": "ok",
        "n_points": 24
      },
      "tns": {
        "status": "error",
        "n_detections": 0,
        "n_limits": 0,
        "source": null,
        "fetched_at": "2026-11-10T07:54:15Z",
        "error": "HTTP 403"
      }
    },
    "maxappmag": [
      {
        "value": "19.37",
        "kind": "fitted_peak",
        "derived": true,
        "source": "4"
      }
    ],
    "spectra": [],
    "brightest_observed_mag": [
      {
        "value": "19.37",
        "kind": "brightest_observed",
        "band": "g",
        "source": "4"
      }
    ],
    "maxdate": [
      {
        "value": "2020/02/19",
        "kind": "peak_epoch",
        "derived": true,
        "source": "4"
      }
    ],
    "maxband": [
      {
        "value": "g",
        "kind": "peak_epoch",
        "derived": true,
        "source": "4"
      }
    ],
    "maxvisualappmag": [
      {
        "value": "19.37",
        "kind": "fitted_peak",
        "derived": true,
        "source": "4"
      }
    ],
    "maxvisualdate": [
      {
        "value": "2020/02/19",
        "kind": "peak_epoch",
        "derived": true,
        "source": "4"
      }
    ],
    "maxvisualband": [
      {
        "value": "g",
        "kind": "peak_epoch",
        "derived": true,
        "source": "4"
      }
    ]
  }
}