EXPLANATIONS TO THE TABLES OF SDO/HMI - DEBRECEN DATA FACULAE CATALOGUE - BASED ON SUNSPOT CATALOGUE

The tables contain three kinds of rows; they are explained separately.


Rows beginning with character "h" (hour):
        
Column    Description

 1        Data code: h   
 2        Year
 3        Month
 4        Day of month
 5        Hour UT
 6        Minute UT
 7        Second UT
 8        Origin of the observation: SHMI=SDO/HMI
 9        Number of disks: This value is 1 in the facular catalog
10        This value is 0 in the facular catalog 
11        Hourly sum of projected whole area of faculae in millionths of the solar disc
12        This value is 0 in the facular catalog
13        Hourly sum of corrected whole area of faculae in millionths of the solar hemisphere
                     If every area data is 0, this means observation with no faculae.
14        Julian Date (by convention .50000000 represents 0000 UT)
15        Position angle of the solar north pole in the processed image
16        Heliographic latitude of the central point of the disk in the processed image
17        Heliographic longitude of the central point of the disk in the processed image
18        999999
19        999999
20        999999

======================================================================================================
Rows beginning with character "d" (disk)

Column    Description

 1        Data code: d   
 2        Year
 3        Month
 4        Day of month
 5        Hour UT
 6        Minute UT
 7        Second UT
 8        This value is the year in the case of facular catalog
 9        Number of faculaes on the disk 
10        This value is 0 in the facular catalog
11        Total projected whole area of faculae of the disk in millionths of the solar disc.
12        This value is 0 in the facular catalog
13        Total corrected whole area of faculae of the disk in millionths of the solar hemisphere

   The following entries refer to the position of facular data of the given disk, which
   is the mean position of its faculae weighted by the corrected areas of the single
   faculae. 

14        Heliographic latitude B; positive: North, negative: South
15        Heliographic longitude L
16        Longitudinal distance from the Sun's central meridian (LCM)
17        Position angle
18        Distance from the centre of Sun's disc measured in units of the solar radius

   Mean values of the line-of-sight magnetic field are computed if Ic images and magnetograms are 
   available within 50 min. The estimated precision of the means is about a few times of ten Gauss. 
   If each magnetic data is 999999, this means that there are no magnetic observations within 
   plus-minus 50 minutes time-interval around the time of continuum observation.

19        Mean magnetic field of faculae of the solar disk averaged the projected magnetic values with sign and weighted by area.
20        Mean magnetic field of faculae of the solar disk averaged the corrected magnetic values with sign and weighted by area.

============================================================================================================
Rows beginning with character "f" (facula) 

Column    Description

 1        Data code: f   
 2        Year
 3        Month
 4        Day of month
 5        Hour UT
 6        Minute UT
 7        Second UT
 8        This value is the year in the case of facular catalog
 9        No. of facula within the solar disk
10        This value is 0 in the facular catalog
11        Projected whole area of facula in millionths of the solar disc
12        This value is 0 in the facular catalog
13        Corrected whole area of facula in millionths of the solar hemisphere
14        Heliographic latitude B; positive: North, negative: South
15        Heliographic longitude L
16        Longitudinal distance from the Sun's central meridian (LCM)
17        Position angle
18        Distance from the centre of Sun's disc measured in units of the solar radius

   Mean values of the line-of-sight magnetic field are computed if Ic images and magnetograms are 
   available within 50 min. The estimated precision of the means is about a few times of ten Gauss. 
   If each sunspot magnetic data is 999999, this means that there are no available magnetic observations 
   within plus-minus 50 minutes time-interval around the time of continuum observation.

19        Mean magnetic field within the projected area contour of facula averaged the pixel values with sign.
20        Mean magnetic field within the corrected area contour of facula averaged the pixel values with sign.