R: radius of solar disk in pixels
xc: center of solar disk (x-axis, pixes
yc: center of solar disk (y-axis, pixels)
P: P-angle (orientation of solar North relative to terrestrial North direction, degrees)
D: B-angle (latitude of center of solar disk, degrees)
L0: 12.9 - Carrington Longitude of solar central meridian (degrees)
kol: number of sunspots in file
Data: q | fi | L | r/R | Smhm | Spx | dq | dfi | Ints | cntr | mn | mx | al | flux | lenght | fimin | fimax |
1: q - latitude (of sunspot, degrees)
2: fi - cmd (Central Meridian Distance of sunspot, or “longitude” relative to central meridian, negative East and positive – West of central meridian, degrees).
3: L - longitude (Carrington longitude of sunspot, degrees; this is redundant as one can compute L=L0+cmd).
4: r/R (heliocentric angle, r – distance from disc center, R – radius of solar disk)
5. Smhm - area (of sunspot, in millionths of solar hemisphere)
6. Spx - area (or sunspot) in pixels
7. dq - size (or sunspot) in latitudinal direction (could be negative as it is computed as East lat – West latitude, or something like that).
8. dfi - size in longitudinal direction
9.Ints - average intensity
10. Cntr – contrast (of sunspot relative to surrounding photosphere).
11. mn - minimum intensity (in sunspot).
12. mx - maximum intensity
13. al - tilt angle relative to equator (degrees)
14. flux - field strength/100. (Gauss)
15. length - perimeter (length of outer boundary)
16. fimin - average magnetic flux (from magnetogram)
17. fimax - maximum magnetic flux (from magnetogram)