| Some astronomical and statistical C-programs |
Back to Stefan's Astronomical C-program packages page
These C-programs are developed by Stefan Spännare and are free to copy.
Read the header of each source code for more information.
These C-programs are now included in the ssphot photometry package found here.
The program calculates horizon coordinates (altitude, azimuth and zenith-
distance) of a celestial object from equatorial coordinates (rigth acension
and declination) of the celestial object, longitude and latitude of location
on on earth, epoch, date and Universal Time (UT).
The program calculates the usual mean and standard deviation together with a
more robust estimation of the mean and standard deviation from a column in a
text (ascii) table with numbers. The minimum and maximum values of the column
are also calculated.
The program produces statistical data to test the program sigcol.c or other
similar programs. The program produce a text (ascii) table with 5 columns,
3 with only text (letters) and 2 with Normal (Gaussian) and rectangular
distributed random numbers respectively. Normal random numbers are present
in column 2 and rectangular random numbers in column 4.