{
  "SN2021udn": {
    "schema": "https://github.com/astrocatalogs/supernovae/blob/d3ef5fc/SCHEMA.md",
    "name": "SN2021udn",
    "sources": [
      {
        "name": "Transient Name Server",
        "url": "https://www.wis-tns.org/object/2021udn",
        "alias": "1"
      },
      {
        "name": "2021TNSTR2572....1T",
        "bibcode": "2021TNSTR2572....1T",
        "reference": "J. Tonry",
        "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": "Planck 2015",
        "alias": "4",
        "bibcode": "2016A&A...594A..13P",
        "reference": "Planck Collaboration (2016)",
        "secondary": true
      },
      {
        "name": "Schlafly & Finkbeiner (2011)",
        "alias": "5",
        "bibcode": "2011ApJ...737..103S",
        "reference": "Schlafly & Finkbeiner (2011)",
        "secondary": true
      }
    ],
    "alias": [
      {
        "value": "2021udn",
        "source": "1"
      },
      {
        "value": "PS21jej",
        "source": "1"
      },
      {
        "value": "AT2021udn",
        "source": "1"
      },
      {
        "value": "SN2021udn",
        "source": "1"
      },
      {
        "value": "SN 2021udn",
        "source": "1"
      },
      {
        "value": "ATLAS21bcin",
        "source": "1"
      }
    ],
    "ra": [
      {
        "value": "17:33:11.919",
        "u_value": "hours",
        "source": "1"
      }
    ],
    "dec": [
      {
        "value": "+48:26:18.36",
        "u_value": "degrees",
        "source": "1"
      }
    ],
    "claimedtype": [
      {
        "value": "Ia",
        "source": "1"
      }
    ],
    "redshift": [
      {
        "value": "0.05",
        "kind": "spectroscopic",
        "source": "1"
      }
    ],
    "discoverer": [
      {
        "value": "J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, M. Fulton, J. Gillanders, C. Webb (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)",
        "source": "1"
      }
    ],
    "discoverdate": [
      {
        "value": "2021/07/27",
        "source": "1"
      }
    ],
    "discoverymag": [
      {
        "value": "18.26",
        "kind": "discovery",
        "source": "2",
        "band": "orange",
        "time": "59422.38899",
        "u_time": "MJD"
      }
    ],
    "photometry": [],
    "photometry_ingest": {
      "alerce": {
        "status": "empty"
      },
      "tns": {
        "status": "error",
        "n_detections": 0,
        "n_limits": 0,
        "source": null,
        "fetched_at": "2026-11-05T16:29:36Z",
        "error": "HTTP 403"
      }
    },
    "maxappmag": [
      {
        "value": "18.26",
        "kind": "discovery",
        "source": "2"
      }
    ],
    "spectra": [],
    "lumdist": [
      {
        "value": "229.433",
        "derived": true,
        "u_value": "Mpc",
        "source": "4"
      }
    ],
    "comovingdist": [
      {
        "value": "218.508",
        "derived": true,
        "u_value": "Mpc",
        "source": "4"
      }
    ],
    "velocity": [
      {
        "value": "14615.3",
        "derived": true,
        "u_value": "km/s",
        "source": "4"
      }
    ],
    "ebv": [
      {
        "value": "0.0278",
        "derived": true,
        "source": "5",
        "e_value": "0.0018"
      }
    ]
  }
}