@misc{indiciaee7cdd686f313,
  title = {Tracking and Data Relay Satellite (TDRS) Orbit Estimation Using an Extended Kalman Filter},
  author = {Ward, Douglas T. and Dang, Ket D. and Slojkowski, Steve and Blizzard, Mike and Jenkins, Greg},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20080012722},
  note = {Source identifier: 20080012722}
}