作者: H. C. Euler , K. O. Niehuss , W. W. Vaughan
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摘要: Abstract : This report documents the Marshall Space Flight Center (MSFC) 13-month smoothed solar flux (F10.7) and geomagnetic index (Ap) intermediate (months) long-range (years) statistical estimation technique, referred to as MSFC Lagrangian Linear Regression Technique (MLLRT). Estimates of future activity are needed updated input upper atmosphere density models used for satellite spacecraft orbital lifetime predictions. An assessment MLLRT computer program's products is provided 5-year periods from date estimates were made. was accomplished a number past cycles.