seconds. The date shall be given in
modified Julian date referred to 1950.0. Functions to convert the
date (day, month and year) to and from
modified Julian date and to compute the Greenwich sidereal time were
provided in the package</span><span style="font-family: ms sans serif;">.
The library also have functions to retrieve the
observed and mean data of a given day, and to provide the proper
values to compute the thermospheric properties according to Jacchia's
70 and 77 models. You may want to see