"McDowell line" meaning in English

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        "2": "perigee"
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      "expansion": "perigee",
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  "etymology_text": "(aerospace): From being proposed by astrophysicist Jonathan C. McDowell in 2018; when analyzing orbiting satellites to determine the perigee altitude at which one can successfully orbit 2 or more times on a highly elliptical orbit.",
  "head_templates": [
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      "args": {
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      "expansion": "McDowell line",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "coordinate_terms": [
        {
          "word": "Karman limit"
        },
        {
          "word": "Kármán limit"
        },
        {
          "word": "Karman line"
        },
        {
          "word": "Kármán line"
        }
      ],
      "glosses": [
        "The altitude of periapsis at which atmospheric drag will prevent an object from successfully orbiting."
      ],
      "id": "en-McDowell_line-en-noun-C586Rq0s",
      "links": [
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          "aerospace",
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        [
          "altitude",
          "altitude#English"
        ],
        [
          "periapsis",
          "periapsis#English"
        ],
        [
          "atmospheric",
          "atmospheric#English"
        ],
        [
          "drag",
          "drag#English"
        ]
      ],
      "raw_glosses": [
        "(aerospace) The altitude of periapsis at which atmospheric drag will prevent an object from successfully orbiting."
      ],
      "related": [
        {
          "word": "Armstrong line"
        },
        {
          "word": "death zone"
        },
        {
          "word": "mesopause"
        }
      ],
      "synonyms": [
        {
          "word": "McDowell Line"
        },
        {
          "word": "McDowell Limit"
        },
        {
          "word": "McDowell limit"
        }
      ],
      "topics": [
        "aerospace",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "McDowell line"
}

{
  "coordinate_terms": [
    {
      "word": "Karman limit"
    },
    {
      "word": "Kármán limit"
    },
    {
      "word": "Karman line"
    },
    {
      "word": "Kármán line"
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  ],
  "etymology_text": "(aerospace): From being proposed by astrophysicist Jonathan C. McDowell in 2018; when analyzing orbiting satellites to determine the perigee altitude at which one can successfully orbit 2 or more times on a highly elliptical orbit.",
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  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Armstrong line"
    },
    {
      "word": "death zone"
    },
    {
      "word": "mesopause"
    }
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      "glosses": [
        "The altitude of periapsis at which atmospheric drag will prevent an object from successfully orbiting."
      ],
      "links": [
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          "aerospace",
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        [
          "altitude",
          "altitude#English"
        ],
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          "periapsis",
          "periapsis#English"
        ],
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          "atmospheric",
          "atmospheric#English"
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          "drag",
          "drag#English"
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        "(aerospace) The altitude of periapsis at which atmospheric drag will prevent an object from successfully orbiting."
      ],
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  "synonyms": [
    {
      "word": "McDowell Line"
    },
    {
      "word": "McDowell Limit"
    },
    {
      "word": "McDowell limit"
    }
  ],
  "word": "McDowell line"
}