@misc{indiciae78bd93fb8b5e,
  title = {Multi-lobar scan horizon sensor Patent},
  author = {Astheimer, R. W. and Falbel, G. and Leftwich, R. F. and Ziolkowski, A. J.},
  year = {1963},
  url = {https://ntrs.nasa.gov/citations/19700026111},
  note = {Source identifier: 19700026111}
}