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Begin FrameSet
# Title = "FK5 equatorial coordinates; mean equinox J2000.0; gnomonic projection" # Title of coordinate system
# Naxes = 2 # Number of coordinate axes
# Domain = "SKY" # Coordinate system domain
# Lbl1 = "Right ascension" # Label for axis 1
# Lbl2 = "Declination" # Label for axis 2
# Uni1 = "hh:mm:ss.s" # Units for axis 1
# Uni2 = "ddd:mm:ss" # Units for axis 2
# Dir1 = 0 # Plot axis 1 in reverse direction
IsA Frame # Coordinate system description
Nframe = 4 # Number of Frames in FrameSet
# Base = 1 # Index of base Frame
Currnt = 4 # Index of current Frame
Nnode = 5 # Number of nodes in FrameSet
Nod1 = 3 # Frame 1 is associated with node 3
Nod2 = 4 # Frame 2 is associated with node 4
Nod3 = 5 # Frame 3 is associated with node 5
Nod4 = 2 # Frame 4 is associated with node 2
Lnk2 = 1 # Node 2 is derived from node 1
Lnk3 = 1 # Node 3 is derived from node 1
Lnk4 = 1 # Node 4 is derived from node 1
Lnk5 = 1 # Node 5 is derived from node 1
Frm1 = # Frame number 1
Begin Frame
Title = "Data grid indices; first pixel at (1,1)" # Title of coordinate system
Naxes = 2 # Number of coordinate axes
Domain = "GRID" # Coordinate system domain
# Lbl1 = "Data grid index 1" # Label for axis 1
# Lbl2 = "Data grid index 2" # Label for axis 2
# Uni1 = "pixel" # Units for axis 1
# Uni2 = "pixel" # Units for axis 2
Ax1 = # Axis number 1
Begin Axis
Label = "Data grid index 1" # Axis Label
Symbol = "g1" # Axis symbol
Unit = "pixel" # Axis units
Format = "%3.1f" # Format specifier
End Axis
Ax2 = # Axis number 2
Begin Axis
Label = "Data grid index 2" # Axis Label
Symbol = "g2" # Axis symbol
Unit = "pixel" # Axis units
Format = "%3.1f" # Format specifier
End Axis
End Frame
Frm2 = # Frame number 2
Begin Frame
Title = "Pixel coordinates; first pixel at (-128.5,-127.5)" # Title of coordinate system
Naxes = 2 # Number of coordinate axes
Domain = "PIXEL" # Coordinate system domain
# Lbl1 = "Pixel coordinate 1" # Label for axis 1
# Lbl2 = "Pixel coordinate 2" # Label for axis 2
# Uni1 = "pixel" # Units for axis 1
# Uni2 = "pixel" # Units for axis 2
Ax1 = # Axis number 1
Begin Axis
Label = "Pixel coordinate 1" # Axis Label
Symbol = "p1" # Axis symbol
Unit = "pixel" # Axis units
Format = "%3.1f" # Format specifier
End Axis
Ax2 = # Axis number 2
Begin Axis
Label = "Pixel coordinate 2" # Axis Label
Symbol = "p2" # Axis symbol
Unit = "pixel" # Axis units
Format = "%3.1f" # Format specifier
End Axis
End Frame
Frm3 = # Frame number 3
Begin Frame
Title = "Axis coordinates; first pixel at (384,-381)" # Title of coordinate system
Naxes = 2 # Number of coordinate axes
Domain = "AXIS" # Coordinate system domain
# Lbl1 = "R.A. offset" # Label for axis 1
# Lbl2 = "Declination offset" # Label for axis 2
# Uni1 = "arcsec" # Units for axis 1
# Uni2 = "arcsec" # Units for axis 2
Ax1 = # Axis number 1
Begin Axis
Label = "R.A. offset" # Axis Label
Symbol = "a1" # Axis symbol
Unit = "arcsec" # Axis units
End Axis
Ax2 = # Axis number 2
Begin Axis
Label = "Declination offset" # Axis Label
Symbol = "a2" # Axis symbol
Unit = "arcsec" # Axis units
End Axis
End Frame
Frm4 = # Frame number 4
Begin SkyFrame
# Title = "FK5 equatorial coordinates; mean equinox J2000.0; gnomonic projection" # Title of coordinate system
Naxes = 2 # Number of coordinate axes
# Domain = "SKY" # Coordinate system domain
# Lbl1 = "Right ascension" # Label for axis 1
# Lbl2 = "Declination" # Label for axis 2
# Uni1 = "hh:mm:ss.s" # Units for axis 1
# Uni2 = "ddd:mm:ss" # Units for axis 2
# Dir1 = 0 # Plot axis 1 in reverse direction
Ax1 = # Axis number 1
Begin SkyAxis
End SkyAxis
Ax2 = # Axis number 2
Begin SkyAxis
End SkyAxis
IsA Frame # Coordinate system description
System = "FK5" # Celestial coordinate system type
Proj = "gnomonic" # Description of sky projection
Epoch = 2002.3821786502 # Julian epoch of observation
Eqnox = 2000 # Julian epoch of mean equinox
End SkyFrame
Map2 = # Mapping between nodes 1 and 2
Begin CmpMap
Nin = 2 # Number of input coordinates
IsA Mapping # Mapping between coordinate systems
MapA = # First component Mapping
Begin WinMap
Nin = 2 # Number of input coordinates
Invert = 0 # Mapping not inverted
IsA Mapping # Mapping between coordinate systems
Sft1 = -129 # Shift for axis 1
Sft2 = -128 # Shift for axis 2
End WinMap
MapB = # Second component Mapping
Begin CmpMap
Nin = 2 # Number of input coordinates
IsA Mapping # Mapping between coordinate systems
MapA = # First component Mapping
Begin MatrixMap
Nin = 2 # Number of input coordinates
Invert = 0 # Mapping not inverted
IsA Mapping # Mapping between coordinate systems
M0 = -1.45444097695548e-05 # Forward matrix value
M1 = 1.45444097695548e-05 # Forward matrix value
Form = "Diagonal" # Matrix storage form
End MatrixMap
MapB = # Second component Mapping
Begin CmpMap
Nin = 2 # Number of input coordinates
IsA Mapping # Mapping between coordinate systems
InvA = 1 # First Mapping used in inverse direction
MapA = # First component Mapping
Begin WcsMap
Nin = 2 # Number of input coordinates
Invert = 1 # Mapping inverted
IsA Mapping # Mapping between coordinate systems
Type = "TAN" # Gnomonic projection
End WcsMap
MapB = # Second component Mapping
Begin CmpMap
Nin = 2 # Number of input coordinates
IsA Mapping # Mapping between coordinate systems
InvA = 1 # First Mapping used in inverse direction
MapA = # First component Mapping
Begin SphMap
Nin = 3 # Number of input coordinates
Nout = 2 # Number of output coordinates
Invert = 0 # Mapping not inverted
IsA Mapping # Mapping between coordinate systems
UntRd = 1 # All input vectors have unit length
End SphMap
MapB = # Second component Mapping
Begin CmpMap
Nin = 3 # Number of input coordinates
Nout = 2 # Number of output coordinates
IsA Mapping # Mapping between coordinate systems
MapA = # First component Mapping
Begin MatrixMap
Nin = 3 # Number of input coordinates
Invert = 0 # Mapping not inverted
IsA Mapping # Mapping between coordinate systems
M0 = 0.425569982779421 # Forward matrix value
M1 = 0.773738866158297 # Forward matrix value
M2 = 0.469274287334386 # Forward matrix value
M3 = -0.519775230563316 # Forward matrix value
M4 = 0.633504670066506 # Forward matrix value
M5 = -0.573154030516038 # Forward matrix value
M6 = -0.740759002274002 # Forward matrix value
M7 = 0 # Forward matrix value
M8 = 0.671770869084113 # Forward matrix value
Form = "Full" # Matrix storage form
End MatrixMap
MapB = # Second component Mapping
Begin CmpMap
Nin = 3 # Number of input coordinates
Nout = 2 # Number of output coordinates
IsA Mapping # Mapping between coordinate systems
MapA = # First component Mapping
Begin SphMap
Nin = 3 # Number of input coordinates
Nout = 2 # Number of output coordinates
Invert = 0 # Mapping not inverted
IsA Mapping # Mapping between coordinate systems
UntRd = 1 # All input vectors have unit length
End SphMap
MapB = # Second component Mapping
Begin SlaMap
Nin = 2 # Number of input coordinates
IsA Mapping # Mapping between coordinate systems
Nsla = 1 # Number of conversion steps
Sla1 = "FK45Z" # FK4 to FK5 J2000.0 (no PM or parallax)
Sla1a = 2002.38350704493 # Besselian epoch of FK4 coordinates
End SlaMap
End CmpMap
End CmpMap
End CmpMap
End CmpMap
End CmpMap
End CmpMap
Map3 = # Mapping between nodes 1 and 3
Begin UnitMap
Nin = 2 # Number of input coordinates
IsA Mapping # Mapping between coordinate systems
End UnitMap
Map4 = # Mapping between nodes 1 and 4
Begin WinMap
Nin = 2 # Number of input coordinates
IsA Mapping # Mapping between coordinate systems
Sft1 = -129.5 # Shift for axis 1
Sft2 = -128.5 # Shift for axis 2
End WinMap
Map5 = # Mapping between nodes 1 and 5
Begin WinMap
Nin = 2 # Number of input coordinates
IsA Mapping # Mapping between coordinate systems
Sft1 = 387 # Shift for axis 1
Scl1 = -3 # Scale factor for axis 1
Sft2 = -384 # Shift for axis 2
Scl2 = 3 # Scale factor for axis 2
End WinMap
End FrameSet
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