Add cadip extension

fields.json

@@ -3,6 +3,7 @@
 		"alternate": "Alternative Access Methods",
 		"anon": "Anonymized Location",
 		"auth": "Authentication",
+		"cadip": "CADIP",
 		"card4l": {
 			"label": "CARD4L",
 			"explain": "CEOS Analysis Ready Data for Land"
@@ -1680,6 +1681,97 @@
 		"cbers:path": "Reference Grid Path",
 		"cbers:row": "Reference Grid Row",
 
+		"cadip:id": {
+			"label": "CADIP Session UUID",
+			"ext": "cadip",
+			"explain": "UUID for the Session instance within CADIP.",
+			"summary": false
+		},
+		"cadip:acquisition_id": {
+			"label": "Acquisition ID",
+			"ext": "cadip",
+			"explain": "Acquisition ID code from the acquisition plan.",
+			"summary": false
+		},
+		"cadip:num_channels": {
+			"label": "Number of Channels",
+			"ext": "cadip",
+			"explain": "Number of channels in the session (1–4).",
+			"summary": "r"
+		},
+		"cadip:station_id": {
+			"label": "Station ID",
+			"ext": "cadip",
+			"explain": "Identifier distinguishing the acquisition station.",
+			"summary": "v"
+		},
+		"cadip:station_unit_id": {
+			"label": "Station Unit ID",
+			"ext": "cadip",
+			"explain": "2-digit X-band station unit identifier.",
+			"summary": "v"
+		},
+		"cadip:antenna_id": {
+			"label": "Antenna ID",
+			"ext": "cadip",
+			"explain": "Identification of the antenna used.",
+			"summary": "v"
+		},
+		"cadip:front_end_id": {
+			"label": "Front-End Processor ID",
+			"ext": "cadip",
+			"explain": "FEP identifier; stations may use dual acquisition chains.",
+			"summary": "v"
+		},
+		"cadip:planned_data_start": {
+			"label": "Planned Data Start",
+			"ext": "cadip",
+			"format": "Timestamp",
+			"explain": "Planned start of the downlink from the SAPF plan.",
+			"summary": "v"
+		},
+		"cadip:planned_data_stop": {
+			"label": "Planned Data Stop",
+			"ext": "cadip",
+			"format": "Timestamp",
+			"explain": "Planned stop of the downlink from the SAPF plan.",
+			"summary": "v"
+		},
+		"cadip:retransfer": {
+			"label": "Retransfer Session",
+			"ext": "cadip",
+			"format": "Boolean",
+			"explain": "True if the session corresponds to a retransfer.",
+			"summary": "v"
+		},
+		"cadip:antenna_status_ok": {
+			"label": "Antenna Status OK",
+			"ext": "cadip",
+			"format": "Boolean",
+			"explain": "Quality flag for the acquired pass at antenna level.",
+			"summary": "v"
+		},
+		"cadip:front_end_status_ok": {
+			"label": "Front-End Status OK",
+			"ext": "cadip",
+			"format": "Boolean",
+			"explain": "Quality flag for the acquired pass at FEP level.",
+			"summary": "v"
+		},
+		"cadip:downlink_status_ok": {
+			"label": "Downlink Status OK",
+			"ext": "cadip",
+			"format": "Boolean",
+			"explain": "Overall status of the downlink.",
+			"summary": "v"
+		},
+		"cadip:delivery_push_ok": {
+			"label": "Delivery Push OK",
+			"ext": "cadip",
+			"format": "Boolean",
+			"explain": "Evaluation of data dissemination to the DDP.",
+			"summary": "v"
+		},
 		"card4l:specification": {
 			"label": "Specification",
 			"mapping": {