csm.h

class Isd {
  public:

  std::string usgscsm_name_model;
  std::string name_platform;
  std::string name_sensor;

  double semi_major;
  double semi_minor;

  double detector_sample_summing;
  double detector_line_summing;

  double focal_length;

  double detector_center_line;
  double detector_center_sample;

  // should probably be ints
  double starting_detector_line;
  double starting_detector_sample;

  std::vector<double> focal2pixel_line;
  std::vector<double> focal2pixel_sample;

  // maybe change
  std::string distortion_model;
  std::vector<double> distortion_coefficients;

  unsigned int image_lines;
  unsigned int image_samples;

  double max_reference_height;
  double min_reference_height;
  std::string reference_height_units;

  std::vector<std::vector<double>> line_scan_rate;

  double starting_ephemeris_time;
  double center_ephemeris_time;

  double t0_ephemeris_time;
  double dt_ephemeris_time;

  double t0_quaternions;
  double dt_quaternions;

  std::map<std::string, std::string> naif_keywords;

  Positions sensor_pos;
  Positions sun_pos;

  Orientations sensor_orientation;
  Orientations body_orientaion;
}