--- header unit 0: primary ---
SIMPLE = T / Dummy Created by MWRFITS v1.11
BITPIX = 8 / Dummy primary header created by MWRFITS
NAXIS = 0 / No data is associated with this header
EXTEND = T / Extensions may (will!) be present
--- header unit 1: binary table ---
XTENSION = 'BINTABLE' / Binary table written by MWRFITS v1.11
BITPIX = 8 / Required value
NAXIS = 2 / Required value
NAXIS1 = 4 / Number of bytes per row
NAXIS2 = 5200 / Number of rows
PCOUNT = 0 / Normally 0 (no varying arrays)
GCOUNT = 1 / Required value
TFIELDS = 1 / Number of columns in table
COMMENT *** End of mandatory fields ***
EXTNAME = 'SpectrumMeta'
COMMENT *** Column names ***
TTYPE1 = 'WAVELENGTH' / wavelengths of spectral bin centers
TUNIT1 = 'nm' / nanometers
COMMENT *** Column formats ***
TFORM1 = 'E'
COMMENT Wavelength (nm) is the center of each bin in the Spectrum table
--- header unit 2: binary table ---
XTENSION = 'BINTABLE' / Binary table written by MWRFITS v1.11
BITPIX = 8 / Required value
NAXIS = 2 / Required value
NAXIS1 = 43 / Number of bytes per row
NAXIS2 = 71 / Number of rows
PCOUNT = 0 / Normally 0 (no varying arrays)
GCOUNT = 1 / Required value
TFIELDS = 7 / Number of columns in table
COMMENT *** End of mandatory fields ***
EXTNAME = 'LinesMeta'
COMMENT *** Column names ***
TTYPE1 = 'WAVE_CENTER' / wavelength of the solar emission line
TTYPE2 = 'WAVE_MIN' / short wavelength boundary
TTYPE3 = 'WAVE_MAX' / long wavelength boundary
TTYPE4 = 'LOGT' / base 10 log of peak formation temperature
TTYPE5 = 'NAME' / element and Roman numeral ionization stage
TTYPE6 = 'TYPE' / isoelectronic series neutral atom
TTYPE7 = 'BLENDS' / partial ion list of blended lines
TUNIT1 = 'nm' / nanometers
TUNIT2 = 'nm' / nanometers
TUNIT3 = 'nm' / nanometers
TUNIT4 = 'log(K)' / base 10 log Kelvin
TUNIT5 = 'NA'
TUNIT6 = 'NA'
TUNIT7 = 'NA'
COMMENT *** Column formats ***
TFORM1 = 'E'
TFORM2 = 'E'
TFORM3 = 'E'
TFORM4 = 'E'
TFORM5 = '8A'
TFORM6 = '2A'
TFORM7 = '17A'
COMMENT For every element in the LINE_* column in the Data table, there is
COMMENT one row here describing the spectral line for that element
COMMENT wave_center is the nominal 'center' or 'peak'
COMMENT determined from CHIANTI (Ref2) or NIST ASD (Ref1).
COMMENT Ref1 - Kramida et al 2023 online doi:10.18434/T4W30F
COMMENT Ref1 - NIST Atomic Spectra Database version 5.11
COMMENT Ref2 - Del Zanna et al 2021 ApJ 909 38 doi:10.3847/1538-4357/abd8ce
COMMENT Ref2 - CHIANTI v10
COMMENT wave_min is the lower edge of the integration window
COMMENT wave_max is the upper edge of the integration window
COMMENT Lines are integrated MEGS spectra over wavelength from wave_min
COMMENT to wave_max with equal weighting.
COMMENT Lines below 33.33nm are derived from MEGS-A (2010120-2014146)
COMMENT Lines above 33.33nm are derived from MEGS-B
COMMENT On May 26, 2014 (146) MEGS-A had a power anomaly and MEGS-A is
COMMENT powered off. After this anomaly, wavelengths shorter than
COMMENT 33.0nm are not measured.
--- header unit 3: binary table ---
XTENSION = 'BINTABLE' / Binary table written by MWRFITS v1.11
BITPIX = 8 / Required value
NAXIS = 2 / Required value
NAXIS1 = 25 / Number of bytes per row
NAXIS2 = 20 / Number of rows
PCOUNT = 0 / Normally 0 (no varying arrays)
GCOUNT = 1 / Required value
TFIELDS = 4 / Number of columns in table
COMMENT *** End of mandatory fields ***
EXTNAME = 'BandsMeta'
COMMENT *** Column names ***
TTYPE1 = 'NAME' / band identifier e.g. E37-45
TTYPE2 = 'TYPE' / type identifier, AIA, GOES, ESP, or MEGS
TTYPE3 = 'LOW_WAVELENGTH_NM' / short wavelength boundary
TUNIT3 = 'nm' / nanometers
TTYPE4 = 'HIGH_WAVELENGTH_NM' / long wavelength boundary
TUNIT4 = 'nm' / nanometers
COMMENT *** Column formats ***
TFORM1 = '13A'
TFORM2 = '4A'
TFORM3 = 'E'
TFORM4 = 'E'
COMMENT For every element in the BAND_* column in the Data table, there is
COMMENT one row here describing the band.
COMMENT name is the name of the band
COMMENT type describes the source of the band weighting
COMMENT No matter the type, all irradiance data used here comes from MEGS A/B
--- header unit 4: binary table ---
XTENSION = 'BINTABLE' / Binary table written by MWRFITS v1.11
BITPIX = 8 / Required value
NAXIS = 2 / Required value
NAXIS1 = 37 / Number of bytes per row
NAXIS2 = 6 / Number of rows
PCOUNT = 0 / Normally 0 (no varying arrays)
GCOUNT = 1 / Required value
TFIELDS = 3 / Number of columns in table
COMMENT *** End of mandatory fields ***
EXTNAME = 'DiodeMeta'
COMMENT *** Column names ***
TTYPE1 = 'NAME' / diode or diode group name
TTYPE2 = 'TYPE' / ESP or MEGS-P
TTYPE3 = 'UNITS' / W m^-2
COMMENT *** Column formats ***
TFORM1 = '25A'
TFORM2 = '6A'
TFORM3 = '6A'
COMMENT For every element in the DIODE_* column in the Data table, there
COMMENT is one row here describing the diode.
COMMENT NAME is a designation for the diode bandpass
COMMENT TYPE describes the source of the band
COMMENT Diode names are enumerated
COMMENT Quad Diode (0.1-7.0nm)
COMMENT Channel 8 (16.64-21.5nm)
COMMENT Channel 2 (22.28-28.78nm)
COMMENT Channel 9 (27.16-33.8nm)
COMMENT Channel 1 (33.3-40.04nm)
COMMENT Lyman-alpha (121-122nm)
--- header unit 5: binary table ---
XTENSION = 'BINTABLE' / Binary table written by MWRFITS v1.11
BITPIX = 8 / Required value
NAXIS = 2 / Required value
NAXIS1 = 5 / Number of bytes per row
NAXIS2 = 4 / Number of rows
PCOUNT = 0 / Normally 0 (no varying arrays)
GCOUNT = 1 / Required value
TFIELDS = 2 / Number of columns in table
COMMENT *** End of mandatory fields ***
EXTNAME = 'QuadMeta'
COMMENT *** Column names ***
TTYPE1 = 'NAME' / quad diode name Q0, Q1, Q2, or Q3
TTYPE2 = 'TYPE' / always ESP
COMMENT *** Column formats ***
TFORM1 = '2A'
TFORM2 = '3A'
COMMENT For every element in the QUAD_* column in the Data table, there is
COMMENT one row here describing the quadrant.
COMMENT name is the name of the quadrant, Q0, Q1, Q2, or Q3
COMMENT type is the instrument channel (always ESP)
--- header unit 6: binary table ---
XTENSION = 'BINTABLE' / Binary table written by MWRFITS v1.11
BITPIX = 8 / Required value
NAXIS = 2 / Required value
NAXIS1 = 43 / Number of bytes per row
NAXIS2 = 71 / Number of rows
PCOUNT = 0 / Normally 0 (no varying arrays)
GCOUNT = 1 / Required value
TFIELDS = 7 / Number of columns in table
COMMENT *** End of mandatory fields ***
EXTNAME = 'ChannelLinesMeta'
COMMENT *** Column names ***
TTYPE1 = 'WAVE_CENTER' / wavelength of the solar emission line
TTYPE2 = 'WAVE_MIN' / short wavelength boundary
TTYPE3 = 'WAVE_MAX' / long wavelength boundary
TTYPE4 = 'LOGT' / base 10 log of peak formation temperature
TTYPE5 = 'NAME' / element and Roman numeral ionization stage
TTYPE6 = 'TYPE' / isoelectronic series neutral atom
TTYPE7 = 'BLENDS' / partial ion list of blended lines
TUNIT1 = 'nm' / nanometers
TUNIT2 = 'nm' / nanometers
TUNIT3 = 'nm' / nanometers
TUNIT4 = 'log(K)' / base 10 log Kelvin
TUNIT5 = 'NA'
TUNIT6 = 'NA'
TUNIT7 = 'NA'
COMMENT *** Column formats ***
TFORM1 = 'E'
TFORM2 = 'E'
TFORM3 = 'E'
TFORM4 = 'E'
TFORM5 = '8A'
TFORM6 = '2A'
TFORM7 = '17A'
COMMENT For every element in the MEGS* column in the ChannelLinesData table,
COMMENT there is one row here describing the spectral line for that element
COMMENT wave_center is the nominal 'center' or 'peak'
COMMENT wave_min is the lower edge of the integration window
COMMENT wave_max is the upper edge of the integration window
COMMENT logt is the base-10 log of the temperature of this line in Kelvin
COMMENT name is the primary ion
COMMENT type is the electron configuration of the primary ion
COMMENT blends are other ions that may be in this line
COMMENT there are separate arrays showing line irradiance
COMMENT from each source: MEGS-A1, MEGS-A2, and MEGS-B
--- header unit 7: binary table ---
XTENSION = 'BINTABLE' / Binary table written by MWRFITS v1.11
BITPIX = 8 / Required value
NAXIS = 2 / Required value
NAXIS1 = 95504 / Number of bytes per row
NAXIS2 = 1 / Number of rows
PCOUNT = 0 / Normally 0 (no varying arrays)
GCOUNT = 1 / Required value
TFIELDS = 25 / Number of columns in table
COMMENT *** End of mandatory fields ***
PROJECT = ' NASA Living with a Star'
MISSION = '                     SDO' / / Solar Dynamics Observatory
CREATOR = '        SDO_EVE_pipeline'
TELESCOP = '                 SDO/EVE'
INSTRUME = '      EVE_MEGS_ESP'
LEVEL = '                     3'
ORIGIN = '            SDO/EVE SPOC' / / LASP, University of Colorado, Boulder
EXTNAME = 'Data'
DATE = '2024-06-10T14:42:10.010Z' / / UTC file creation time (per ISO8601)
TAI_OBS = 1931299237.000 / / TAI time at start of obs
DATE_OBS = '2019-03-15T00:00:00.000Z' / / UTC at start of obs
T_OBS = '2019-03-15T12:00:00.000Z' / / UTC at center of obs
EXPTIME = 86400.000 / / seconds per integration
TIME = 0.000 / / UTC seconds of day at start of obs
SOLARNET = 0.5 / / SOLARNET partially compliant
OBS_HDU = 1 / / This HDU contains observational data
DATE-BEG = '2019-03-15T00:00:00.000Z' / / Date of start of observation
CADENCE = 86400.000 / / seconds
VERSION = 008 / / major code/cal version
REVISION = 1 / / reprocess number
FILENAME = 'EVE_L3_2019074_008_01.fit'
TTYPE2 = 'TAI_TIME' / seconds elapsed from 01-01-1958
TUNIT2 = 's' / seconds
COMMENT *** Column names ***
TTYPE1 = 'YYYYDOY' / year and day of year
TUNIT1 = 'NA' / dimensionless
TTYPE3 = 'CAPTURE' / number of seconds spectrally measured
TUNIT3 = 's' / Seconds measured by MEGS
TTYPE4 = 'MEGSA_VALID' / number of MEGS-A measurements used
TUNIT4 = 'NA' / dimensionless
TTYPE5 = 'MEGSB_VALID' / number of MEGS-B measurements used
TUNIT5 = 'NA' / dimensionless
TTYPE6 = 'SP_IRRADIANCE' / solar spectral irradiance
TUNIT6 = 'W m^-2 nm^-1' / Watts per square meter per nm
TTYPE7 = 'SP_STDEV' / relative 1-sigma spread
TUNIT7 = 'NA' / dimensionless, fractional
TTYPE8 = 'SP_PRECISION' / relative precision from counting statistics
TUNIT8 = 'NA' / dimensionless, fractional
TTYPE9 = 'SP_ACCURACY' / relative NIST combined standard uncertainty
TUNIT9 = 'NA' / dimensionless, fractional
TTYPE10 = 'SP_FLAGS' / spectrum flags, see comments
TUNIT10 = 'NA' / dimensionless
TTYPE11 = 'LINE_IRRADIANCE' / integrated line irradiance
TUNIT11 = 'W m^-2' / Watts per square meter
TTYPE12 = 'LINE_STDEV' / relative 1-sigma spread
TUNIT12 = 'NA' / dimensionless, fractional
TTYPE13 = 'LINE_PRECISION' / relative precision
TUNIT13 = 'NA' / dimensionless, fractional
TTYPE14 = 'LINE_ACCURACY' / relative accuracy
TUNIT14 = 'NA' / dimensionless, fractional
TTYPE15 = 'BAND_IRRADIANCE' / integrated band irradiance
TUNIT15 = 'W m^-2 or counts sec^-1 AIApixel^-1' / varies with band
TTYPE16 = 'BAND_STDEV' / relative 1-sigma spread
TUNIT16 = 'NA' / dimensionless, fractional
TTYPE17 = 'BAND_PRECISION' / relative precision
TUNIT17 = 'NA' / dimensionless, fractional
TTYPE18 = 'BAND_ACCURACY' / relative accuracy
TUNIT18 = 'NA' / dimensionless, fractional
TTYPE19 = 'DIODE_IRRADIANCE' / integrated diode irradiance
TUNIT19 = 'W m^-2' / Watts per square meter
TTYPE20 = 'DIODE_STDEV' / relative one sigma spread
TUNIT20 = 'NA' / dimensionless, fractional
TTYPE21 = 'DIODE_PRECISION' / relative precision
TUNIT21 = 'NA' / dimensionless, fractional
TTYPE22 = 'DIODE_ACCURACY' / relative accuracy
TUNIT22 = 'NA' / dimensionless, fractional
TTYPE23 = 'QUAD_FRACTION' / signal fraction in each quad
TUNIT23 = 'NA' / dimensionless
TTYPE24 = 'QUAD_STDEV' / relative one sigma spread
TUNIT24 = 'NA' / dimensionless, fractional
TTYPE25 = 'QUAD_PRECISION' / relative precision
TUNIT25 = 'NA' / dimensionless, fractional
COMMENT *** Column formats ***
TFORM1 = 'J'
TFORM2 = 'J'
TFORM3 = 'J'
TFORM4 = 'J'
TFORM5 = 'J'
TFORM6 = '5200E'
TFORM7 = '5200E'
TFORM8 = '5200E'
TFORM9 = '5200E'
TFORM10 = '5200I'
TFORM11 = '71D'
TFORM12 = '71E'
TFORM13 = '71E'
TFORM14 = '71E'
TFORM15 = '20E'
TFORM16 = '20E'
TFORM17 = '20E'
TFORM18 = '20E'
TFORM19 = '6E'
TFORM20 = '6E'
TFORM21 = '6E'
TFORM22 = '6E'
TFORM23 = '4E'
TFORM24 = '4E'
TFORM25 = '4E'
COMMENT *** Unsigned integer column scalings *
TSCAL3 = 1
TSCAL4 = 1
TSCAL5 = 1
TSCAL10 = 1
TZERO3 = 2147483648
TZERO4 = 2147483648
TZERO5 = 2147483648
TZERO10 = 32768
COMMENT Values in FLAGS field are the bitwise OR of these values.
COMMENT Bit 0 (value 1) - MEGS-A data is missing
COMMENT Bit 1 (value 2) - MEGS-B data is missing
COMMENT SP_FLAGS enumerated values:
COMMENT 0=good
COMMENT 1=Warmup after Earth eclipse
COMMENT 2=Atmosphere penumbra
COMMENT 3=Atmosphere umbra
COMMENT 4=Mercury penumbra
COMMENT 5=Mercury umbra
COMMENT 6=Venus penumbra
COMMENT 7=Venus umbra
COMMENT 8=Lunar penumbra
COMMENT 9=Lunar umbra
COMMENT 10=Solid Earth penumbra
COMMENT 11=Solid Earth umbra
COMMENT 16=SDO exceeds 1 arcmin from sun center
COMMENT all other SC_FLAGS values are undefined
COMMENT If multiple SC_FLAGS would occur, then SC_FLAGS is the highest value
COMMENT Uncertainties (precision, accuracy and standard deviation)
COMMENT are relative, (0.1=10% uncertainty) multiply by corresponding
COMMENT irradiance to get uncertainty in physical irradiance units
COMMENT Website reference https://lasp.colorado.edu/eve
COMMENT EVE Principal Investigator T. N. Woods
COMMENT Laboratory for Atmospheric and Space Physics
COMMENT 1234 Innovation Drive, Boulder, CO 80303
COMMENT SDO/EVE reference article doi:10.1007/s11207-009-9487-6
COMMENT SDO Mission scientific and model results are open to all.
COMMENT Users should contact the PI or designated EVE team member early in an
COMMENT analysis project to discuss appropriate use of instrument data results.
COMMENT Appropriate acknowledgement to institutions, personnel, and funding
COMMENT agencies should be given. Version numbers should also be specified.
COMMENT Pre-prints of publications and conference abstracts should be widely
COMMENT distributed to interested parties within the mission.
--- header unit 8: binary table ---
XTENSION = 'BINTABLE' / Binary table written by MWRFITS v1.11
BITPIX = 8 / Required value
NAXIS = 2 / Required value
NAXIS1 = 3420 / Number of bytes per row
NAXIS2 = 1 / Number of rows
PCOUNT = 0 / Normally 0 (no varying arrays)
GCOUNT = 1 / Required value
TFIELDS = 14 / Number of columns in table
COMMENT *** End of mandatory fields ***
PROJECT = ' NASA Living with a Star'
MISSION = '                     SDO' / / Solar Dynamics Observatory
CREATOR = '        SDO_EVE_pipeline'
TELESCOP = '                 SDO/EVE'
INSTRUME = '      EVE_MEGS'
LEVEL = '                     3'
ORIGIN = '            SDO/EVE SPOC' / / LASP, University of Colorado, Boulder
EXTNAME = 'ChannelLinesData'
DATE = '2024-06-10T14:42:10.031Z' / / UTC file creation time (per ISO8601)
TAI_OBS = 1931299237.000 / / TAI time at start of obs
DATE_OBS = '2019-03-15T00:00:00.000Z' / / UTC at start of obs
T_OBS = '2019-03-15T12:00:00.000Z' / / UTC at center of obs
EXPTIME = 86400.000 / / seconds per integration
TIME = 0.000 / / UTC seconds of day at start of obs
SOLARNET = 0.5 / / SOLARNET partially compliant
OBS_HDU = 1 / / This HDU contains observational data
DATE-BEG = '2019-03-15T00:00:00.000Z' / / Date of start of observation
CADENCE = 86400.000 / / seconds
VERSION = 008 / / major code/cal version
REVISION = 1 / / reprocess number
FILENAME = 'EVE_L3_2019074_008_01.fit'
COMMENT *** Column names ***
TTYPE1 = 'TAI' / seconds elapsed from 01-01-1958
TUNIT1 = 's' / seconds
TTYPE2 = 'YYYYDOY' / year and day of year
TUNIT2 = 'NA' / dimensionless
TTYPE3 = 'MEGSA1_LINE_IRRADIANCE' / MEGS-A slit1 integrated line irradiance
TUNIT3 = 'W m^-2' / Watts per square meter
TTYPE4 = 'MEGSA1_LINE_PRECISION' / relative precision
TUNIT4 = 'NA' / dimensionless, fractional
TTYPE5 = 'MEGSA1_LINE_ACCURACY' / relative accuracy
TUNIT5 = 'NA' / dimensionless, fractional
TTYPE7 = 'MEGSA2_LINE_IRRADIANCE' / MEGS-A slit2 integrated line irradiance
TUNIT7 = 'W m^-2' / Watts per square meter
TTYPE8 = 'MEGSA2_LINE_PRECISION' / relative precision
TUNIT8 = 'NA' / dimensionless, fractional
TTYPE9 = 'MEGSA2_LINE_ACCURACY' / relative accuracy
TUNIT9 = 'NA' / dimensionless, fractional
TTYPE11 = 'MEGSB_LINE_IRRADIANCE' / MEGS-B integrated line irradiance
TUNIT11 = 'W m^-2' / Watts per square meter
TTYPE12 = 'MEGSB_LINE_PRECISION' / relative precision
TUNIT12 = 'NA' / dimensionless, fractional
TTYPE13 = 'MEGSB_LINE_ACCURACY' / relative accuracy
TUNIT13 = 'NA' / dimensionless, fractional
TTYPE6 = 'MEGSA1_LINE_STDEV' / MEGS-A slit 1 relative 1-sigma spread
TUNIT6 = 'NA' / dimensionless, fractional
TTYPE10 = 'MEGSA2_LINE_STDEV' / MEGS-A slit 2 relative 1-sigma spread
TUNIT10 = 'NA' / dimensionless, fractional
TTYPE14 = 'MEGSB_LINE_STDEV' / MEGS-B relative 1-sigma spread
TUNIT14 = 'NA' / dimensionless, fractional
COMMENT *** Column formats ***
TFORM1 = 'D'
TFORM2 = 'J'
TFORM3 = '71E'
TFORM4 = '71E'
TFORM5 = '71E'
TFORM6 = '71E'
TFORM7 = '71E'
TFORM8 = '71E'
TFORM9 = '71E'
TFORM10 = '71E'
TFORM11 = '71E'
TFORM12 = '71E'
TFORM13 = '71E'
TFORM14 = '71E'
COMMENT LINE_IRRADIANCE line order is in the ChannelLinesMeta HDU
COMMENT Uncertainties (precision, accuracy and standard deviation)
COMMENT are relative, (0.1=10% uncertainty) multiply by corresponding
COMMENT irradiance to get uncertainty in physical irradiance units
COMMENT Website reference https://lasp.colorado.edu/eve
COMMENT EVE Principal Investigator T. N. Woods
COMMENT Laboratory for Atmospheric and Space Physics
COMMENT 1234 Innovation Drive, Boulder, CO 80303
COMMENT SDO/EVE reference article doi:10.1007/s11207-009-9487-6
COMMENT SDO Mission scientific and model results are open to all.
COMMENT Users should contact the PI or designated EVE team member early in an
COMMENT analysis project to discuss appropriate use of instrument data results.
COMMENT Appropriate acknowledgement to institutions, personnel, and funding
COMMENT agencies should be given. Version numbers should also be specified.
COMMENT Pre-prints of publications and conference abstracts should be widely
COMMENT distributed to interested parties within the mission.
COMMENT The units for irradiance in the channel lines data table are analogous
COMMENT to those in the lines data table