= Vector_Patches Data Series =

Feature identification software will identify a small number of solar active region patches using a line-of-sight magnetogram and an intensity image.  This data series pointers to associated vector magnetic field information for each time step during the SDO mission.

# SERIES INFO
 . DATANAME = Vector_Patches
 . Retention = 0
 . Archive = 0
 . Primekeys = T_REC, PNUM

# PRIME KEY INFO
 . T_REC, TIME, Slotted
 . T_REC_STEP = 12MIN
 . T_REC_EPOCH = 1976.12.31_23:59:45.000_UTC
 . PNUM, INT - '' One entry for each active region identified at this time step ''

# GEOMETRY KEYWORDS - PIXEL
 . IMAGEX0, link, "IMAGEX0", blospatch
 . IMAGEY0, link, "IMAGEY0", blospatch
 . IMAGEX1, link, "IMAGEX1", blospatch
 . IMAGEY1, link, "IMAGEY1", blospatch 

# COORDINATE KEYWORDS
 . CROTA2 = link,"CROTA2",sourcerec

 . CTYPE1 = "hpln_tan"
 . CRPIX1 = 1
 . CRVAL1 = [left corner of bounding box]
 . CUNIT1 = "arc sec"
 . CDELT1 = 0.5 [nominal HMI pixel]

 . CTYPE2 = "hplt_tan"
 . CRPIX2 = 1
 . CRVAL2 = [lower corner of bounding box]
 . CUNIT2 = "arc sec"
 . CDELT2 = 0.5 [nominal HMI pixel]
 . QUALITY = BITS

# KEYWORDS FROM Elsewhere - Blos and Ic Patches
 . B0, link, "B0", sourcerec
 . ARP_AREA, link, "ARP_AREA", blospatch
 . ARP_MAP, link, "ARP_MAP", blospatch
 . I_MIN, link, "I_MIN", blospatch

# KEYWORDS computed from Vector Field
 . BTOTAL, FLOAT
 . BMAX, FLOAT
 . # OTHERS

#LINK INFO
 .  '''NEED TO FIX - add segment for each Bvec element in the patch - enumerate all vector components'''
 .  ''' E.g. data: HMI.B.patch,XXX '''
 . link: sourcerec, "HMI.Blos", static
 . link: vectorrec, "HMI.B", static
 . link: blospatch,"Patches_Found",static

=== Related Data Series ===

 . [[HARPDataSeries|HARPDataSeries]]
 . PatchesFound