File size: 2,511 Bytes
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"$schema": "http://json-schema.org/draft-07/schema#",
"title": "Sovereign Apollo Telemetry Frame",
"description": "Normalized downlink frame derived from Luminary099 DOWNLINK_LISTS + DOWN_TELEMETRY_PROGRAM (DOCUMENTED) + modern hash wrapper (MODERN DESIGN)",
"type": "object",
"required": ["met", "met_seconds", "list_id", "words", "hash_chain"],
"properties": {
"met": { "type": "string", "pattern": "^\\d{3}:\\d{2}:\\d{2}$", "description": "Mission Elapsed Time" },
"met_seconds": { "type": "integer", "description": "MET seconds from liftoff" },
"list_id": { "type": "integer", "minimum": 0, "maximum": 5, "description": "Downlink list index (0=orbital, 1=powered, 2=landing)" },
"list_name": { "type": "string", "enum": ["ORBITAL", "POWERED", "LANDING", "COST_PLUS_1", "COST_PLUS_2"] },
"vehicle_state": { "type": "string", "description": "From State vector: RN/VN" },
"guidance_mode": { "type": "string" },
"words": {
"type": "array",
"minItems": 1,
"maxItems": 100,
"items": {
"type": "object",
"required": ["addr_oct", "symbol", "value_oct", "value_dec"],
"properties": {
"addr_oct": { "type": "string", "pattern": "^[0-7]{4}$" },
"symbol": { "type": "string", "description": "Erasable symbol e.g., RN1, VN2, PIPTIME" },
"value_oct": { "type": "string" },
"value_dec": { "type": "integer" }
}
}
},
"sync_word": { "type": "string", "description": "Frame sync Barker (original 0x7776) hex" },
"hash_chain": {
"type": "object",
"description": "MODERN DESIGN: hash chain for integrity",
"required": ["prev_hash", "frame_hash"],
"properties": {
"prev_hash": { "type": "string", "pattern": "^[a-f0-9]{64}$" },
"frame_hash": { "type": "string", "pattern": "^[a-f0-9]{64}$" },
"algorithm": { "type": "string", "const": "SHA-256" }
}
}
},
"example": {
"met": "102:45:03",
"met_seconds": 369903,
"list_id": 2,
"list_name": "LANDING",
"vehicle_state": "surface",
"guidance_mode": "P68",
"words": [
{ "addr_oct": "01410", "symbol": "RN1", "value_oct": "00000", "value_dec": 0 },
{ "addr_oct": "03400", "symbol": "DNECADR", "value_oct": "03412", "value_dec": 1802 }
],
"sync_word": "0x7776",
"hash_chain": { "prev_hash": "abc...def", "frame_hash": "123...789", "algorithm": "SHA-256" }
}
}
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