captures.md

@@ -17,7 +17,7 @@ Each capture is named after the station code and the acquisition date-time, in t
 
 ## Captures format
 
-Each capture is saved as a FITS file (or compressed `.fit.gz` to save some disk space), enclosing the image itself (grey-scale) and a **header** with relevant metadata, also automatically produced by the Freeture software.
+Each capture is saved as a FITS file (or compressed `.fit.gz` to save some disk space), enclosing the image itself (in grey scale) and a **header** with relevant metadata, also automatically produced by the Freeture software.
 Captures can be open, visualized and saved as bitmap images with the [PRISMA Widget](PRISMA Widget).
 An example of capture acquired by the ITPI01 - Pino Torinese camera is given below.
 
@@ -26,7 +26,7 @@ An example of capture acquired by the ITPI01 - Pino Torinese camera is given bel
 Captures are usually oriented with the North direction corresponding to the negative ordinate axis (downwards, -y) and the East direction to the positive ordinate axis (rightward, +x).
 In the analysis process, captures are rotated counterclockwise by 90°, to match the reference frame with the North direction corresponding to the positive abscissa axis (+x) and the East direction to the positive ordinate axis (+y).
 
-The FITS header enclosed in each capture file lists the relevant metadata of the acquisition, such as time, coordinates, exposure time and others.
+The FITS header enclosed in each capture file lists the relevant **metadata of the acquisition**, such as time, coordinates, exposure time and others.
 An example of such header for the example capture by the ITPI01 - Pino Torinese camera is given below. 
 Among all these keywords, the ones that are mandatory for the PRISMA pipeline are:
 - `DATE-OBS`: the acquisition date and time (UTC) in the FITS format;