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- K. H. Bhavnani, C. Hein
- 1994

Abstract : An improved algorithm for computing altitude dependent corrected geomagnetic (CGM) coordinates from geocentric coordinates (and, where it exists, the inverse) using spherical harmonics is… (More)

- C. Hein, K. H. Bhavnani
- 1996

Abstract : A revised algorithm covering an expanded range of altitudes is described for computing altitude dependent corrected geomagnetic (CGM) coordinates from geocentric coordinates (and, where it… (More)

Abstract : A variety of computer programs is used to fulfill the different requirements, generated by the various research programs, for satellite orbit data. Revisions to these programs are… (More)

This report describes significant analyses and computer programming problems performed in support of Air Force Geophysics Laboratory scientists. Mathematical and logical procedures are discussed;… (More)

Abstract : This report describes significant analyses and computer programming problems performed in support of Air Force Geophysics Laboratory scientists. Mathematical and logical procedures are… (More)

Abstract : An analytical model of the charging of a spacecraft emitting electron and ion beams has been applied to the case of large spacecraft. In this model, ionization occurs in the sheath due to… (More)

Abstract : Investigations were supported to analyze geophysical measurements with integrated applications of ephemerides physics, and mathematics of the ionosphere and near space. Projects undertaken… (More)

Abstract : Atmospheric densities are computed from analysis of Doppler beacon satellite data. Modifications to Doppler beacon data processing program CELEST necessary for this study are described.… (More)

- K. Chen, K. H. Bhavnani
- IEEE Trans. Systems, Man, and Cybernetics
- 1974

In a competitive economy many a firm finds itself caught in the middle of a cost-price squeeze. One approach to this problem is to reduce costs as much as possible. Another approach is to obtain the… (More)

An empirical model of the ion composition for altitudes between 150 and 500 km is developed based on measurements of the principal ion species of the F1(-) and F2(-) regions. Data was obtained by the… (More)