@misc{indiciae0c9438d98915,
  title = {Orbit/attitude estimation for the GOES spacecraft using VAS landmark data},
  author = {Sielski, H. and Hall, D. and Nankervis, R. and Koch, D.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800019898},
  note = {Source identifier: 19800019898}
}