{
  "format": "mcu-sitl-event-excerpt@1",
  "sourceDate": "2026-10-01",
  "firmware": "ArduCopter 4.7.1 official Linux x86_64",
  "firmwareSourceCommit": "dbe792162d06cab66c3475fd5556bf7a120f119e",
  "binarySha256": "011627d41dd95640c3aca02d45283474be48721c8b1bb7a4b234d38b69063482",
  "clock": "host monotonic observations in seconds; last_observed_boot_ms stays separate; not exact internal firmware timeout",
  "scope": "One run per case; software/model only; no hardware or physical flight",
  "originalZip": "/downloads/microcontrollers/sitl-failsafe.zip",
  "originalZipSha256": "a0eb433eb27e2a1d56e5701ae8010ed3e832f6d71da3040813a03cd925a9ecdd",
  "excerptOnly": true,
  "newRunPerformed": false,
  "cases": [
    {
      "case": "baseline",
      "originalPath": "data/baseline.json",
      "originalSha256": "5ff49062303b36488c1d1f8f66630329871660217515eff83dca7e121acbad95",
      "parameters": {
        "FS_GCS_ENABLE": 5.0,
        "FS_GCS_TIMEOUT": 5.0,
        "FS_OPTIONS": 0.0,
        "LOG_DISARMED": 1.0,
        "ARMING_SKIPCHK": 0.0,
        "FS_THR_ENABLE": 1.0,
        "MAV_GCS_SYSID": 255.0
      },
      "events": [
        {
          "type": "armed",
          "t": 43.192527
        },
        {
          "type": "height",
          "t": 49.897775,
          "meters": 4.633
        },
        {
          "type": "land_command",
          "t": 59.906187
        },
        {
          "type": "land",
          "t": 59.906242
        },
        {
          "type": "disarmed",
          "t": 73.194264
        }
      ]
    },
    {
      "case": "gcs-loss",
      "originalPath": "data/gcs-loss.json",
      "originalSha256": "c93eb4facd3c86b7f46658db1ae8b98a7d95f5fbd8aacebd8ab6766dfab7a276",
      "parameters": {
        "FS_GCS_ENABLE": 5.0,
        "FS_GCS_TIMEOUT": 5.0,
        "FS_OPTIONS": 0.0,
        "LOG_DISARMED": 1.0,
        "ARMING_SKIPCHK": 0.0,
        "FS_THR_ENABLE": 1.0,
        "MAV_GCS_SYSID": 255.0
      },
      "events": [
        {
          "type": "armed",
          "t": 43.128416
        },
        {
          "type": "height",
          "t": 49.833186,
          "meters": 4.63
        },
        {
          "type": "heartbeat_stop",
          "t": 60.031862,
          "last_sent_t": 59.6351,
          "last_observed_boot_ms": 58939
        },
        {
          "type": "land",
          "t": 64.711191
        },
        {
          "type": "failsafe_text",
          "t": 64.711244,
          "text": "GCS Failsafe"
        },
        {
          "type": "disarmed",
          "t": 82.132064
        }
      ],
      "hostDerivedSeconds": {
        "stopToLand": 4.679329,
        "lastSentHeartbeatToLand": 5.076091
      }
    }
  ]
}