Accession Number:

ADA350812

Title:

Statistical Technique for Intermediate and Long-Range Estimation of 13-Month Smoothed Solar Flux and Geomagnetic Index

Descriptive Note:

Technical memo

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HUNTSVILLE AL GEORGE C MARSHALL SPACE FLIGHT CENTER

Report Date:

1996-09-01

Pagination or Media Count:

80.0

Abstract:

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

Subject Categories:

  • Astrophysics
  • Geomagnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE