*** memo for solspec file series ***

1) solspec_ch800_corona_chianti.genx
   solspec_ch800_hybrid_chianti.genx
   solspec_ch800_photos_chianti.genx
for accelerating irradiance calculation by separating spectral 
calculation with CHIANTI isothermal.pro

..... Text Section ......
Solar spectrum with Chianti DB ver.8.0.7, 24-Apr-2018 (AkT).
 Abundance : sun_coronal_1992_feldman_ext.abund
 Ioneq : chianti.ioneq
 Line_Flux is erg s-1, Line_Phot is in photons s-1
Expanded range and adopted 0.05 A bin of wavelength, by courtesy of N.
Nitta (LMSAL), 21-Jun-2006. 

.....  Data Section .....
** Structure MS_287342019002, 6 tags, length=16360208, data
length=16360204:
   CONT_FLUX       DOUBLE    Array[51, 10000]
   LINE_FLUX       DOUBLE    Array[51, 10000]
   CONT_PHOT       DOUBLE    Array[51, 10000]
   LINE_PHOT       DOUBLE    Array[51, 10000]
   LOGTE           FLOAT     Array[51]
   WAVE            FLOAT     Array[10000]

2) solspec_ch800_corona_chianti_irrad.genx
   solspec_ch800_hybrid_chianti_irrad.genx
   solspec_ch800_photos_chianti_irrad.genx
for accelerating SXT irradiance calculation.
a range of wavelength is [0.05, 50A].

..... Text Section ......
Solar spectrum with Chianti DB ver.8.0.7, 27-Aug-2018 (AkT).
 Abundance : sun_coronal_1992_feldman_ext.abund, 
 Ioneq : chianti.ioneq, 
 Total_flux is in erg s-1. 
Wavelengh range (0.05,50A) by 0.05 A bin of wavelength. 
Temperature range [5.500, 8.000] by 0.0025K. 

.....  Data Section .....
** Structure MS_287342170003, 3 tags, length=8011992, data
length=8011988:
   TOTAL_FLUX      DOUBLE    Array[1001, 999]
   LOGTE           FLOAT     Array[1001]
   WAVE            DOUBLE    Array[999]

3) solspec_ch800_corona_chianti_xrtirrad.genx
   solspec_ch800_hybrid_chianti_xrtirrad.genx
   solspec_ch800_photos_chianti_xrtirrad.genx

Range of wavelengh was exteded from [0.05,200] to [0.05,300]A.
..... Text Section ......
Solar spectrum with Chianti DB ver.8.0.7, 12-Feb-2019 (AkT).
 Abundance : sun_coronal_2012_schmelz_ext.abund, 
 Ioneq : chianti.ioneq, 
 Total_flux is in erg s-1. 
Wavelengh range [0.05,300A] by 0.05A bin of wavelength. 
Temperature range [5.500, 8.000] by 0.0025K. 
Prepared by CHIANTI_SOLSPEC4XRTIRRAD.PRO 

.....  Data Section .....
** Structure MS_288586016002, 3 tags, length=48100008, data length=48100004:
   TOTAL_FLUX      DOUBLE    Array[1001, 6000]
   LOGTE           FLOAT     Array[1001]
   WAVE            DOUBLE    Array[6000]
-----------------------------------------------------------

4) Renamed since set (3)'s wavelength range was extended to 300A.
   solspec_ch800_corona_chianti_xrtirrad_200.genx
   solspec_ch800_hybrid_chianti_xrtirrad_200.genx
   solspec_ch800_photos_chianti_xrtirrad_200.genx

for accelerating XRT irradiance calculation.
with a wider range of wavelength, [0.05, 200A].
Note: hybrid version was made WITHOUT '_ext' version of Schmelz_2012.
It was corrected in the set (3)
..... Text Section ......
Solar spectrum with Chianti DB ver.8.0.7, 27-Aug-2018 (AkT).
 Abundance : sun_coronal_1992_feldman_ext.abund, 
 Ioneq : chianti.ioneq, 
 Total_flux is in erg s-1. 
Wavelengh range [0.05,200A] by 0.05A bin of wavelength. 
Temperature range [5.500, 8.000] by 0.0025K. 
Prepared by CHIANTI_SOLSPEC4XRTIRRAD.PRO 

.....  Data Section .....
** Structure MS_287342199004, 3 tags, length=32068008, data
length=32068004:
   TOTAL_FLUX      DOUBLE    Array[1001, 4000]
   LOGTE           FLOAT     Array[1001]
   WAVE            DOUBLE    Array[4000]
-----------------------------------------------------------

5) Chianti ver 9.0.1 version corresponging to the set (3).
   solspec_ch0901_corona_chianti_xrtirrad.genx
   solspec_ch0901_hybrid_chianti_xrtirrad.genx
   solspec_ch0901_photos_chianti_xrtirrad.genx

..... Text Section ......
Solar spectrum with Chianti DB ver.9.0.1, 4-Apr-2020 (AkT).
 Abundance : sun_coronal_1992_feldman_ext.abund, 
 Ioneq : chianti.ioneq, 
 Total_flux is in erg s-1. 
Wavelengh range [0.05,100A] by 0.05A bin of wavelength. 
Temperature range [5.500, 8.000] by 0.0025K. 
Prepared by CH901_SOLSPEC4XRTIRRAD.PRO 

.....  Data Section .....
** Structure MS_009576597002, 3 tags, length=48100008, data length=48100004:
   TOTAL_FLUX      DOUBLE    Array[1001, 6000]
   LOGTE           FLOAT     Array[1001]
   WAVE            DOUBLE    Array[6000]
-----------------------------------------------------------

6) Chianti ver 10.0.0 version corresponging to the set (3).
   solspec_ch1000_corona_chianti_xrtirrad.genx
   solspec_ch1000_hybrid_chianti_xrtirrad.genx
   solspec_ch1000_photos_chianti_xrtirrad.genx
These files were renamd to
   solspec_ch1000_corona_chianti_xrtirrad_20211201.genx
   solspec_ch1000_hybrid_chianti_xrtirrad_20211201.genx
   solspec_ch1000_photos_chianti_xrtirrad_20211201.genx

..... Text Section ......
Solar spectrum with Chianti DB ver.10.0, 1-Dec-2021 (AkT).
 Abundance : sun_coronal_1992_feldman_ext.abund, 
 Ioneq : chianti.ioneq, 
 Total_flux is in erg s-1. 
Wavelengh range [0.05,210A] by 0.05A bin of wavelength. 
Temperature range [5.500, 8.000] by 0.0050K. 
Prepared by CH1000_SOLSPEC4XRTIRRAD.PRO 

.....  Data Section .....
** Structure MS_061584341002, 3 tags, length=16869208, data length=16869204:
   TOTAL_FLUX      DOUBLE    Array[501, 4200]
   LOGTE           FLOAT     Array[501]
   WAVE            DOUBLE    Array[4200]

7) Chianti ver 10.0.0 version corresponging to the set (3).
The temperature step needed to be smaller than 0.005 for some XRT
irradiance study, so recalculate with 0.0025K step as before. 
(10-Jan-2023)

However, it takes so large memory that only Filament can handle
but Filament is regularly busy with other users jobs and thus slow.

From this version, temperatures are calculated in 2 ranges,
[5.5,6.8]K and [6.7,8.0]K, both by 0.0025K step, then output files
are merged later. 

solspec_ch1000_corona_chianti_xrtirrad_tlow.genx   for [5.5,6.8] range
solspec_ch1000_corona_chianti_xrtirrad_thigh.genx  for [6.7,8.0] range
------> merged to solspec_ch1000_corona_chianti_xrtirrad.genx

solspec_ch1000_hybrid_chianti_xrtirrad_tlow.genx   for [5.5,6.8] range
solspec_ch1000_hybrid_chianti_xrtirrad_thigh.genx  for [6.7,8.0] range
------> merged to solspec_ch1000_hybrid_chianti_xrtirrad.genx

solspec_ch1000_photos_chianti_xrtirrad_tlow.genx   for [5.5,6.8] range
solspec_ch1000_photos_chianti_xrtirrad_thigh.genx  for [6.7,8.0] range
------> merged to solspec_ch1000_photos_chianti_xrtirrad.genx

The programs used were as follows:
idlpro/xrt/irrad3/ch1000_solspec4xrtirrad_tlow.pro. 
idlpro/xrt/irrad3/ch1000_solspec4xrtirrad_thigh.pro. 
idlpro/xrt/irrad3/ch1000_solspec4xrtirrad_tmerge.pro. 

..... Text Section ......
Solar spectrum with Chianti DB ver.10.0, 10-Jan-2023 (AkT).
 Abundance : sun_coronal_1992_feldman_ext.abund, 
 Ioneq : chianti.ioneq, 
 Total_flux is in erg s-1. 
Wavelengh range [0.05,210A] by 0.05A bin of wavelength. 
Temperature range [5.500, 6.800] by 0.0025K. 
Prepared by CH1000_SOLSPEC4XRTIRRAD_TLOW.PRO. 
Solar spectrum with Chianti DB ver.10.0, 9-Jan-2023 (AkT).
 Abundance : sun_coronal_1992_feldman_ext.abund, 
 Ioneq : chianti.ioneq, 
 Total_flux is in erg s-1. 
Wavelengh range [0.05,210A] by 0.05A bin of wavelength. 
Temperature range [6.700, 8.000] by 0.0025K. 
Prepared by CH1000_SOLSPEC4XRTIRRAD_THIGH.PRO. 
Two total_fluxes were then merged for the wider temperature range [5.5,8.0]K,
by CH1000_SOLSPEC4XRTIRRAD_TMERGE.PRO assuming coronal abundance. 12-Jan-2023
(AkT).

.....  Data Section .....
** Structure MS_115750877002, 3 tags, length=33671208, data length=33671204:
   TOTAL_FLUX      DOUBLE    Array[1001, 4200]
   LOGTE           FLOAT     Array[1001]
   WAVE            DOUBLE    Array[4200]
-----------------------------------------------------------

8) Chianti ver 10.1.0 version corresponging to the set (1).
i.e., spectral files used for xrt_flux*.pro

Te : [5.00, 8.00] MK by 0.05 step.
lambda: [1.0, 400.0] A by 0.1A step

..... Text Section ......
Solar specta (photon number) calculated with Chianti ver.10.1.0. 
 for isothermal plasma with electron density : 1.0e9 cm^(-3)
 Intensity unit : photons cm^3 s^-1 sr^-1 * EM, 
 EM : unit column EM,  1. cm^-5. 
 Abundance : sun_coronal_2021_chianti.abund
, Ioneq : chianti.ioneq
. 31-Jul-2023 (AkT) with customized isothermal.pro.

.....  Data Section .....
** Structure MS_115759524002, 3 tags, length=1963816, data length=1963816:
   LOGTE           FLOAT     Array[61]
   LMBDA           FLOAT     Array[3991]
   SOLSPEC         DOUBLE    Array[3991, 61]
-----------------------------------------------------------


9) Chianti ver 10.1.0 version corresponging to the set (7).
i.e., spectral tables used for irradiance study.

solspec_ch1010_cr2021chianti_chianti_xrtirrad.genx
solspec_ch1010_p2021asplund_chianti_xrtirrad.genx

Te : [5.500, 8.000] by 0.0025K step.
lambda: [0.05,210A] by 0.05A step