classDiagram
    class SWOT {
        +altitude: number
        +orbit_inclination: number
        +carrier_frequency: number
        +pulse_repetition_frequency: number
        +chirp_bandwidth: number
        +sampling_frequency: number
    }

    class NISAR_S {
        +altitude: number
        +orbit_inclination: number
        +repeat_cycle: number
        +carrier_frequency: number
        +antenna_radius: number
        +pulse_repetition_frequency: number
        +chirp_bandwidth: number
        +azimuth_resolution: number
        +noise_equivalent_sigma_zero: number
    }

    class BIOMASS {
        +altitude: number
        +orbit_inclination: number
        +repeat_cycle: number
        +carrier_frequency: number
        +antenna_length: number
        +pulse_repetition_frequency: number
        +chirp_bandwidth: number
        +range_pixel_size: number
        +azimuth_pixel_size: number
        +noise_equivalent_sigma_zero: number
    }

classDiagram
    class SENSOR_DICT {
      <<Dictionary>>
      +String bio : BIOMASS <<added>>
      %%
        ... other existing entries
    }
    class BIOMASS {
      %% Defined in "New Sensor Definitions" diagram
      %% Attributes: altitude, orbit_inclination, etc.
    }
    SENSOR_DICT o-- BIOMASS : "entry 'bio'"

    class MISSION_ALIASES {
      <<Dictionary>>
      +String bio : List~String~ <<added>> %% Value: ["bio", "biomass"]
      %%
        ... other existing entries
    }

classDiagram
    class RCM {
        <<Sensor>>
        +chirp_bandwidth: number <<added>>
        +noise_equivalent_sigma_zero: number <<added>>
        %%
          ... other existing attributes
    }

    class SEN {
        <<Sensor>>
        +antenna_width: number <<updated>>
        +noise_equivalent_sigma_zero: number <<added>>
        %%
          ... other existing attributes
    }

    class ALOS4 {
        <<Sensor>>
        +carrier_frequency: number <<added>>
        +chirp_bandwidth: number <<added>>
        +range_resolution: number <<added>>
        +noise_equivalent_sigma_zero: number <<added>>
        %%
          ... other existing attributes
    }

    class GF3 {
        <<Sensor>>
        +antenna_width: number <<updated>>
        +noise_equivalent_sigma_zero: number <<added>>
        %%
          ... other existing attributes
    }
    %% Other sensors updated primarily with 'noise_equivalent_sigma_zero':
    %% - HJ1C, ALOS, ALOS2, SAOCOM, LT1, UAV_L, NISAR_L