NSSDCA ID: SPMS-00406
Availability: At NSSDC, Ready for Electronic Access
Time span: 1981-08-15 to 1983-02-16
These CD disk contains conversion matrices for the DE-2 VEFI/MAG-B 0.5 s data set 81-070B-01E/-02H. These matrices can be used to convert the vector components from spacecraft coordinates to topographic coordinates (North, East, Vertical). The matrix values are provided at 5 s intervals in daily files (please use interpolation to obtain 0.5sec resolution data). File names use a year, month, day of month format, so that 81_10_27.MAT contains matrix values for October 27, 1981. Each record of a file contains the time in seconds and is written with a format statement of 1X,I5,9F10.6. The matrix values are written in column order. If T(i,j) is the matrix element from row i and column j, then the matrix values are written in the following order: T(1,1) T(2,1) T(3,1) T(1,2) T(2,2) T(3,2) T(1,3) T(2,3) T(3,3). The Topographic coordinate system is defined for Earth surface: the X axis points to the North, the Y axis points to the East, and the Z axis points to the center of the Earth. This CD also contains the final part of the VEFI/MAG-B 0.5 s ASCII data set.
Questions and comments about this data collection can be directed to: Mr. Robert M. Candey
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. James A. Slavin | Data Provider | NASA Goddard Space Flight Center | slavin@lepjas.gsfc.nasa.gov |
Dr. Thomas L. Aggson | Data Provider | NASA Goddard Space Flight Center | |
Dr. Natalia E. Papitashvili | Programmer | NASA Goddard Space Flight Center | Natasha.Papitashvili@gsfc.nasa.gov |