TY  - RPRT
TI  - Ionospheric refraction effects on orbit determination using the orbit determination error analysis system
AU  - Yee, C. P.
AU  - Kelbel, D. A.
AU  - Lee, T.
AU  - Dunham, J. B.
AU  - Mistretta, G. D.
PY  - 1990
UR  - https://ntrs.nasa.gov/citations/19910007769
ID  - 19910007769
ER  -