removed unnecessary try except block

    x_coords = [base_startx, base_startx, base_stopx, base_stopx, bcenter_x]

    y_coords = [base_starty, base_stopy, base_stopy, base_starty, bcenter_y]

    try:

    # Dispatch to the sensor to get the a priori pixel location in the input image

    lons, lats = isis.image_to_ground(reference_image.file_name, x_coords, y_coords, allowoutside=True)

    xs, ys = isis.ground_to_image(moving_image.file_name, lons, lats, allowoutside=True)

    except Exception as e:

        print(e.stderr)

        raise e

    # Check for any coords that do not project between images

    base_gcps = []