@misc{indiciae92ccf9923f11,
  title = {Autonomous onboard navigation using tracking and data relay satellite system (TDRSS) signals},
  author = {Engel, Cheryl and Teles, Jerome and Elrod, Bryant D.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900056457},
  note = {Source identifier: 19900056457}
}