erDiagram
  TSX {
    float altitude
    float orbit_inclination
    int repeat_cycle
    float carrier_frequency
    float antenna_length
    float antenna_width
    float doppler_bandwidth
    float pulse_repetition_frequency
    float chirp_bandwidth
  }
  TELEOS2 {
    float altitude
    float orbit_inclination
  }
  GF3 {
    float altitude
    float orbit_inclination
    float carrier_frequency
    float antenna_length
    float antenna_width
    float pulse_repetition_frequency
    float chirp_bandwidth
    float sampling_frequency
  }
  HJ1C {
    float altitude
    float orbit_inclination
    int repeat_cycle
    float carrier_frequency
    float antenna_length
    float antenna_width
    float pulse_repetition_frequency
    float chirp_bandwidth
    float noise_equivalent_sigma_zero
  }
  SEASAT {
    float altitude
    float orbit_inclination
    float carrier_frequency
    float antenna_length
    float antenna_width
    float pulse_repetition_frequency
    float chirp_bandwidth
    float noise_equivalent_sigma_zero
  }
  ALOS4 {
    float altitude
    float orbit_inclination
    int repeat_cycle
    float carrier_frequency
    float antenna_length
    float antenna_width
    float chirp_bandwidth
    float range_resolution
    float noise_equivalent_sigma_zero
  }

classDiagram
class TSX {
  altitude: float
  orbit_inclination: float
  repeat_cycle: int
  carrier_frequency: float
  antenna_length: float (updated)
  antenna_width: float (updated)
  doppler_bandwidth: float
  pulse_repetition_frequency: float
  chirp_bandwidth: float
}
class TELEOS2 {
  altitude: float (new)
  orbit_inclination: float (new)
}
class GF3 {
  altitude: float
  orbit_inclination: float
  carrier_frequency: float
  antenna_length: float
  antenna_width: float (updated)
  pulse_repetition_frequency: float
  chirp_bandwidth: float
  sampling_frequency: float
}
class HJ1C {
  altitude: float
  orbit_inclination: float (updated)
  repeat_cycle: int
  carrier_frequency: float
  antenna_length: float (new)
  antenna_width: float (new)
  pulse_repetition_frequency: float
  chirp_bandwidth: float
  noise_equivalent_sigma_zero: float (updated)
}
class SEASAT {
  altitude: float
  orbit_inclination: float
  carrier_frequency: float
  antenna_length: float
  antenna_width: float
  pulse_repetition_frequency: float
  chirp_bandwidth: float
  noise_equivalent_sigma_zero: float (new)
}
class ALOS4 {
  altitude: float
  orbit_inclination: float
  repeat_cycle: int
  carrier_frequency: float
  antenna_length: float (new)
  antenna_width: float (new)
  chirp_bandwidth: float
  range_resolution: float
  noise_equivalent_sigma_zero: float
}