Table 13: New spectral keywords including forms for use in tables. All table keywords except the coordinate name have the same form for the BINTABLE vector image format and the pixel list format.
Primary BINTABLE Pixel Type Sect. Keyword
Array   list     Description
CNAME $i{\it a\/}$ i CNA n a TCNA n a character 3.3 Coordinate axis name
RESTFRQ a RFRQ n a floating 3.4.4 Line rest frequency (Hz)
RESTFREQ -- floating 3.4.4 Line rest frequency alternate for primary array only
RESTWAV a RWAV n a floating 3.4.4 Line rest wavelength in vacuum (m)
SPECSYS a SPEC n a character 7 Spectral reference frame (from Table 12)
SSYSOBS a SOBS n a character 7 Spectral reference frame fixed during observation (from Table 12)
MJD-AVG MJDA n floating 7 Average date of observation (Julian date -2400000.5)
DATE-AVG DAVG n character 7 Average date/time of observation
OBSGEO-X OBSGX n floating 7 Observation X (m)
OBSGEO-Y OBSGY n floating 7 Observation Y (m)
OBSGEO-Z OBSGZ n floating 7 Observation Z (m)
VELOSYS a VSYS n a floating 7 Radial velocity wrt standard of rest (m s-1)
ZSOURCE a ZSOU n a floating 7 Redshift of source for SOURCE cases (unitless)
SSYSSRC a SSRC n a character 7 Spectral reference frame for SOURCE cases (from Table 12)
VELANGL a VANG n a floating A Angle of true velocity from tangent to line of sight


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