Data for: "JWST COMPASS Program: The 3--5$\mu$m transmission spectrum of LTT 1445 A b"

Data Reduction Files Description of Data 

Light Curve Data 

For Eureka LightCurve file contains the white light curve and 30 pixel binned spectroscopic light curves with the associated best-fit models for a different detector for the Eureka! reduction. 

For Exo-TIC JEDI, white light curves are included in txt files for NRS1 and NRS. Time is in days and flux/model/error are all normalized. 

Final Reduced Spectra (Figure 3) 

There are two xarrays in similar formats called: Spectrum-LTT1445Ab-G395H-30pix-Eureka.nc for the two different reductions. If you are not familiar with netCDF/xarray they can easily be read via Python: 

import xarray as xr

a = xr.load_dataset('Spectrum-LTT1445Ab-G395H-30pix-Eureka.nc')
b= xr.load_dataset('Spectrum-LTT1445Ab-G395H-30pix-ExoTiC-JEDI.nc')

plt.errorbar(b.central_wavelength,b.transit_depth,b.transit_depth_error)
plt.errorbar(a.central_wavelength,a.transit_depth,a.transit_depth_error)

Modeling/Interpretation Description of Data 

MH Curve Data (Figure 6) 

This contains the data for "sigma" (y-axis value) shown in Figure 6a and 6b. Each file contains a different C/O ratio and offset method, as decribed in the paper. In each file the independent variables are the first two columns labeled: logMH(xSolar) and MMW. FOllowing that are columns labeled according to LTT-1445Ab_{REDUCTION}_{CLOUDTOP}logBar where REDUCTION is either jedi or eureka and CLOUDTOP is an integer. 

Spectra Modeling Data (Figure 8) 

This is an xarray containing all the data shown in Figure 8. Figure 8 only shows spectra for Eureka but we also have the data for the JEDI reduction, not shown in the paper.