{
  "id": "tjs-qianshao",
  "name": "TJS-1/4/9/12 (suspected Qianshao-3 SIGINT)",
  "aliases": [
    "Qianshao-3"
  ],
  "domain": "space",
  "country": "CHN",
  "category": "Suspected SIGINT satellites",
  "status": "in-service",
  "fielded": null,
  "operators": [
    "CHN"
  ],
  "summary": "Chinese GEO satellites described as communications tests but likely signals intelligence, with a reported ~32 m antenna.",
  "specs": [
    {
      "k": "orbit_regime",
      "v": "GEO",
      "src": [
        "gsp-tjs-1"
      ],
      "conf": "medium"
    },
    {
      "k": "sats_count",
      "v": 4,
      "src": [
        "gsp-tjs-1"
      ],
      "conf": "medium",
      "note": "TJS 1 (2015), 4 (2019), 9 (2021), 12 (2024)"
    },
    {
      "k": "first_launch",
      "v": 2015,
      "src": [
        "gsp-tjs-1"
      ],
      "conf": "medium"
    },
    {
      "k": "on_orbit",
      "v": 4,
      "src": [
        "celestrak-gp"
      ],
      "conf": "high",
      "note": "Payloads with current element sets in the public catalog, active or not."
    },
    {
      "k": "active_sats",
      "v": 4,
      "src": [
        "celestrak-gp"
      ],
      "conf": "medium",
      "note": "Count in the CelesTrak active satellites list, which estimates operational status."
    },
    {
      "k": "perigee_km",
      "v": [
        35759,
        35784
      ],
      "src": [
        "celestrak-gp"
      ],
      "conf": "high",
      "note": "Active satellites per CelesTrak, element epoch about 2026-11-08."
    },
    {
      "k": "apogee_km",
      "v": [
        35790,
        35814
      ],
      "src": [
        "celestrak-gp"
      ],
      "conf": "high",
      "note": "Active satellites per CelesTrak, element epoch about 2026-11-08."
    },
    {
      "k": "period_min",
      "v": 1436.1,
      "src": [
        "celestrak-gp"
      ],
      "conf": "high",
      "note": "Active satellites per CelesTrak, element epoch about 2026-11-08."
    },
    {
      "k": "inclination_deg",
      "v": [
        0.05,
        0.69
      ],
      "src": [
        "celestrak-gp"
      ],
      "conf": "high",
      "note": "Active satellites per CelesTrak, element epoch about 2026-11-08."
    }
  ],
  "payloads": [],
  "variants": [],
  "art": "satellite",
  "image": null,
  "verified": null,
  "changelog": [
    {
      "date": "2026-11-08",
      "change": "Entry created from cited open sources"
    },
    {
      "date": "2026-11-08",
      "change": "Orbital elements from CelesTrak GP data (epoch about 2026-11-08): 4 catalogued, 4 active."
    }
  ],
  "satellites": [
    {
      "name": "TJS-1",
      "norad": 40892,
      "cospar": "2015-046A",
      "perigee_km": 35777,
      "apogee_km": 35796,
      "inclination_deg": 0.69,
      "period_min": 1436.1,
      "epoch": "2026-11-08",
      "active": true,
      "owner": "PRC",
      "launch": "2015-09-12"
    },
    {
      "name": "TJS-4",
      "norad": 44637,
      "cospar": "2019-070A",
      "perigee_km": 35759,
      "apogee_km": 35814,
      "inclination_deg": 0.05,
      "period_min": 1436.1,
      "epoch": "2026-11-08",
      "active": true,
      "owner": "PRC",
      "launch": "2019-10-17"
    },
    {
      "name": "TJS-9",
      "norad": 50574,
      "cospar": "2021-135A",
      "perigee_km": 35772,
      "apogee_km": 35802,
      "inclination_deg": 0.05,
      "period_min": 1436.1,
      "epoch": "2026-11-08",
      "active": true,
      "owner": "PRC",
      "launch": "2021-12-29"
    },
    {
      "name": "TJS-12",
      "norad": 62374,
      "cospar": "2024-246A",
      "perigee_km": 35784,
      "apogee_km": 35790,
      "inclination_deg": 0.41,
      "period_min": 1436.1,
      "epoch": "2026-11-08",
      "active": true,
      "owner": "PRC",
      "launch": "2024-12-20"
    }
  ],
  "url": "https://www.defensepedia.com/systems/tjs-qianshao.html",
  "sources": {
    "gsp-tjs-1": {
      "title": "TJS 1, 4, 9 (Qianshao-3)",
      "publisher": "Gunter's Space Page",
      "url": "https://space.skyrocket.de/doc_sdat/tjs-1.htm",
      "published": null,
      "tier": 3,
      "checked": "2026-11-08"
    },
    "celestrak-gp": {
      "title": "NORAD GP element sets (current data)",
      "publisher": "CelesTrak (data from the U.S. Space Force 18th/19th Space Defense Squadron catalog)",
      "url": "https://celestrak.org/NORAD/elements/",
      "published": "2026-11-08",
      "tier": 1,
      "checked": "2026-11-08"
    }
  }
}