{"type": "object", "properties": {"INTERVAL_DATETIME": {"type": "string", "examples": ["2026/09/01 00:05:00"], "format": "date-time", "description": "Date and time of the trading interval (DD/MM/YYYY HH24:MI:SS) fixed to the UTC+10 time zone (NEM time)"}, "MEASUREMENT_DATETIME": {"type": "string", "examples": ["2026/09/01 00:00:04"], "format": "date-time", "description": "Date and time of the SCADA data (DD/MM/YYYY HH24:MI:SS) fixed to the UTC+10 time zone (NEM time)"}, "REGIONID": {"type": "string", "enum": ["QLD1", "VIC1", "TAS1", "NSW1", "SA1", "SNOWY1"], "description": "Region ID of the frequency deviation / frequency measure"}, "VERSIONNO": {"type": "integer", "examples": ["1"], "minimum": 0, "maximum": 4294967295, "description": "Version (FPP run number from the FPP database)"}, "FM_ALIGNMENT_FLAG": {"type": "boolean", "examples": ["0", "1"], "description": "Alignment Flag (4 second frequency deviation is aligned with 4 second frequency measure for that region) Supported values are: 0 = Misaligned 1 = Aligned"}, "FREQ_DEVIATION_HZ": {"type": "number", "examples": ["-0.001", "0.001", "0", "0.065"], "description": "Frequency Deviation (4 second frequency deviation in Hz for that region)"}, "FREQ_MEASURE_HZ": {"type": "number", "examples": ["-0.00003285", "0.00010003", "-0.02822295", "0.04382655"], "description": "Calculated 4 second Frequency Measure for that region from FPP database"}, "HZ_QUALITY_FLAG": {"type": "integer", "examples": ["1"], "maximum": 2147483647, "minimum": -2147483648, "description": "Frequency Quality (4 second frequency deviation quality for that region) Supported values are: 0 = Bad Quality 1 = Good Quality 2 = Suspect Quality -1 = Value not used as input in the FPP calculation (generally used to indicate when SCADA data was late arriving after the FPP calculation commenced)"}, "LASTCHANGED": {"type": "string", "examples": ["2026/09/01 00:10:20"], "format": "date-time", "description": "Last date and time record changed"}}, "required": ["INTERVAL_DATETIME", "MEASUREMENT_DATETIME", "REGIONID", "VERSIONNO"], "description": "This report delivers the curated 4 second frequency deviation and frequency measure data for each region"}