N. P. Leme and F. Raimundo da Silva (INPE), A.M Thompson (GSFC), and F.L. Bliven (WFF).– Weekly ECC sondes since July 1967 with data archived since 2000. NDACC data archived Previous PI Schmidlin is listed on the datafiles.
GSFC: Goddard Space Flight Facility
WFF: Wallops Flight Facility
INPE: Instituto Nacional de Pesquisas Espaciais