code: def second_parameter(self, singular_value):
          
          self.log("calc second term parameter @" + str(singular_value))
          result = self.G(singular_value) * self.obscov * self.G(singular_value).T
          self.log("calc second term parameter @" + str(singular_value))
          return result
docs: get the solution space contribution to parameter error variance
               at a singular value (G * obscov * G^T)
  
          Parameters
          ----------
          singular_value : int
              singular value to calc second term at
  
          Returns
          -------
          second_parameter : pyemu.Cov
              second term contribution to parameter error variance