Data model: spAllLine

General description: This file contains a summary of the Spectro-1D spZline output for all spectra.

Naming convention: spAllLine-RUN2D.fits

Approximate size: 1 Gbytes.

File type: FITS binary table

Read by products: idlspec2d

Written by products: idlspec2d

Required header keywords:

• DIMS0 Number of emission lines.
• DIMS1 Number of objects

Required column names:

• PLATE (int32): Plate number
• MJD (int32): Modified Julian date of observation
• FIBERID (int32): Fiber ID (1 to NFIBER)
• LINENAME (string): Line name
• LINEWAVE (double): Catalog wavelength for this line in vacuum Angstroms
• LINEZ (float): Redshift
• LINEZ_ERR (float): Redshift error (negative for invalid fit)
• LINESIGMA (float): Gaussian width in km/sec
• LINESIGMA_ERR (float): Error in gaussian width (negative for invalid fit)
• LINEAREA (float): Area in gaussian fit where units are (flux-units) * Ang
• LINEAREA_ERR (float): Flux error (negative for invalid fit)
• LINEEW (float): Equivalent width (Angstroms)
• LINEEW_ERR (float): Equivalent width error (negative for invalid fit)
• LINECONTLEVEL (float): Continuum level at line center
• LINECONTLEVEL_ERR (float): Error in continuum level at line center
• LINENPIXLEFT (int32): Number of pixels from the line center to -3 sigma that have INVVAR > 0
• LINENPIXRIGHT (int32): Number of pixels from the line center to +3 sigma that have INVVAR > 0
• LINEDOF (float): Degrees of freedom in fit, approximated as LINENPIX minus the number of terms fit for that line, which can be fractional if one parameter if fixed betwen several lines
• LINECHI2 (float): chi2 for all points within +/- 3 sigma of the line center (negative if no such points)