{
  "source": {
    "retrieved": "2026-10-18",
    "url": "https://celestrak.org/pub/satcat.csv",
    "documentation": "https://celestrak.org/satcat/satcat-format.php",
    "sha256": "4d3428566429a3edb2dfc06261ba7d79bc6c952cc3b9617e54caa7dcb21f4437",
    "csvBytes": 6775419,
    "latestLaunchDate": "2026-10-14",
    "snapshot": "assets/satcat-2026-10-18.csv.gz",
    "scope": "Public catalogue only, not an estimate of all debris or a collision-risk calculation."
  },
  "method": "Earth-centred ORB entries with no decay date; 0 <= perigee <= apogee < 2,000 km. Band by (apogee + perigee) / 2, with exclusive upper limits.",
  "rawRows": 71073,
  "orbitingRows": 35036,
  "lowOrbitRows": 28846,
  "missingAltitudeRows": 332,
  "groups": [
    {
      "id": "payload",
      "name": "Spacecraft",
      "catalogTypes": [
        "PAY"
      ],
      "color": "#91d9e8"
    },
    {
      "id": "debris",
      "name": "Debris",
      "catalogTypes": [
        "DEB"
      ],
      "color": "#f3af78"
    },
    {
      "id": "other",
      "name": "Other",
      "catalogTypes": [
        "R/B",
        "UNK"
      ],
      "color": "#b5b9b9"
    }
  ],
  "bands": [
    {
      "id": "lower",
      "name": "Below 600 km",
      "minKm": 0,
      "maxKm": 600,
      "total": 14571,
      "dominant": "payload",
      "catalogCounts": {
        "PAY": 13912,
        "DEB": 454,
        "R/B": 170,
        "UNK": 35
      },
      "categories": [
        {
          "id": "payload",
          "name": "Spacecraft",
          "catalogTypes": [
            "PAY"
          ],
          "color": "#91d9e8",
          "count": 13912,
          "percent": 95.47731796033216
        },
        {
          "id": "debris",
          "name": "Debris",
          "catalogTypes": [
            "DEB"
          ],
          "color": "#f3af78",
          "count": 454,
          "percent": 3.1157779150367166
        },
        {
          "id": "other",
          "name": "Other",
          "catalogTypes": [
            "R/B",
            "UNK"
          ],
          "color": "#b5b9b9",
          "count": 205,
          "percent": 1.4069041246311167
        }
      ],
      "symbols": [
        {
          "category": "payload",
          "altitude": 350.5,
          "index": 0,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-0"
        },
        {
          "category": "payload",
          "altitude": 363.5,
          "index": 1,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-1"
        },
        {
          "category": "payload",
          "altitude": 459.5,
          "index": 2,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-2"
        },
        {
          "category": "payload",
          "altitude": 462.5,
          "index": 3,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-3"
        },
        {
          "category": "payload",
          "altitude": 462.5,
          "index": 4,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-4"
        },
        {
          "category": "payload",
          "altitude": 463.0,
          "index": 5,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-5"
        },
        {
          "category": "payload",
          "altitude": 463.0,
          "index": 6,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-6"
        },
        {
          "category": "payload",
          "altitude": 465.5,
          "index": 7,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-7"
        },
        {
          "category": "payload",
          "altitude": 465.5,
          "index": 8,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-8"
        },
        {
          "category": "payload",
          "altitude": 470.5,
          "index": 9,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-9"
        },
        {
          "category": "payload",
          "altitude": 471.0,
          "index": 10,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-10"
        },
        {
          "category": "payload",
          "altitude": 483.0,
          "index": 11,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-11"
        },
        {
          "category": "payload",
          "altitude": 483.0,
          "index": 12,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-12"
        },
        {
          "category": "payload",
          "altitude": 483.0,
          "index": 13,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-13"
        },
        {
          "category": "payload",
          "altitude": 483.0,
          "index": 14,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-14"
        },
        {
          "category": "payload",
          "altitude": 483.0,
          "index": 15,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-15"
        },
        {
          "category": "payload",
          "altitude": 505.5,
          "index": 16,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-16"
        },
        {
          "category": "payload",
          "altitude": 544.0,
          "index": 17,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-17"
        },
        {
          "category": "payload",
          "altitude": 577.0,
          "index": 18,
          "categorySymbols": 19,
          "band": "lower",
          "key": "lower-payload-18"
        },
        {
          "category": "debris",
          "altitude": 546.0,
          "index": 0,
          "categorySymbols": 1,
          "band": "lower",
          "key": "lower-debris-0"
        }
      ]
    },
    {
      "id": "upper",
      "name": "600 to 1,100 km",
      "minKm": 600,
      "maxKm": 1100,
      "total": 10686,
      "dominant": "debris",
      "catalogCounts": {
        "PAY": 2387,
        "R/B": 653,
        "DEB": 7632,
        "UNK": 14
      },
      "categories": [
        {
          "id": "payload",
          "name": "Spacecraft",
          "catalogTypes": [
            "PAY"
          ],
          "color": "#91d9e8",
          "count": 2387,
          "percent": 22.33763803106869
        },
        {
          "id": "debris",
          "name": "Debris",
          "catalogTypes": [
            "DEB"
          ],
          "color": "#f3af78",
          "count": 7632,
          "percent": 71.42055025266704
        },
        {
          "id": "other",
          "name": "Other",
          "catalogTypes": [
            "R/B",
            "UNK"
          ],
          "color": "#b5b9b9",
          "count": 667,
          "percent": 6.24181171626427
        }
      ],
      "symbols": [
        {
          "category": "payload",
          "altitude": 629.5,
          "index": 0,
          "categorySymbols": 3,
          "band": "upper",
          "key": "upper-payload-0"
        },
        {
          "category": "payload",
          "altitude": 777.5,
          "index": 1,
          "categorySymbols": 3,
          "band": "upper",
          "key": "upper-payload-1"
        },
        {
          "category": "payload",
          "altitude": 983.5,
          "index": 2,
          "categorySymbols": 3,
          "band": "upper",
          "key": "upper-payload-2"
        },
        {
          "category": "debris",
          "altitude": 649.0,
          "index": 0,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-0"
        },
        {
          "category": "debris",
          "altitude": 707.0,
          "index": 1,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-1"
        },
        {
          "category": "debris",
          "altitude": 748.5,
          "index": 2,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-2"
        },
        {
          "category": "debris",
          "altitude": 778.5,
          "index": 3,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-3"
        },
        {
          "category": "debris",
          "altitude": 808.5,
          "index": 4,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-4"
        },
        {
          "category": "debris",
          "altitude": 835.5,
          "index": 5,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-5"
        },
        {
          "category": "debris",
          "altitude": 864.5,
          "index": 6,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-6"
        },
        {
          "category": "debris",
          "altitude": 900.0,
          "index": 7,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-7"
        },
        {
          "category": "debris",
          "altitude": 957.0,
          "index": 8,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-8"
        },
        {
          "category": "debris",
          "altitude": 1036.0,
          "index": 9,
          "categorySymbols": 10,
          "band": "upper",
          "key": "upper-debris-9"
        },
        {
          "category": "other",
          "altitude": 841.0,
          "index": 0,
          "categorySymbols": 1,
          "band": "upper",
          "key": "upper-other-0"
        }
      ]
    }
  ],
  "symbolUnit": 750,
  "symbolMethod": "Nearest whole symbol per category and band; altitude quantiles from the actual category records; angular placement illustrative.",
  "limits": [
    "The public catalogue excludes uncatalogued and unpublished objects and almost all small debris.",
    "Payloads include working and inactive spacecraft; the comparison does not measure operational status.",
    "DEB is the catalogue's other-debris category; rocket bodies are shown separately within Other.",
    "Midpoint altitude is not an instantaneous position. Elliptical orbits can cross band boundaries.",
    "Object shares are not collision probabilities, debris mass, orbital density or a safety ranking."
  ]
}