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Published January 5, 2026 | Version v1

Data used for the analysis presented in "Spectral analysis of Urvara-Yalode bright areas on Ceres suggests a new aromatic organic material and Fe-carbonate"

Description

This dataset contains the spectra used in the analysis of the associated manuscript. The data originate from the Visible and Infrared Spectrometer (VIR) onboard the Dawn spacecraft.

The dataset includes:

1. Reflectance spectra of the 3 bright spots (BS1, BS2, BS2) identified in Yalode crater -> "bs1_data_err.txt" (e.g.)

  • Denoised data

  • Ground-corrected 

  • NOT photometrically corrected

  • Bridged VIS-IR
  • Thermal emission removed

  • Error bars provided

The description of these steps is in the main text of the paper. 

2. Simulated spectra of BS1, BS2, BS3 -> "bs1_model.txt" (e.g.)

Reflectance spectra resulting from the unmixing model (Hapke). The endmembers used in the mixtures are those described as "Mix1" in the paper's text. 

3. Albedo of the endmembers used in the mixture for the model or optical constants (when available)

Magnetite_opt_const_Querry1985.txt = magnetite

c_w_397f189.txt = NH4-montmorillonite

k_AT-TXH-006heated_0-125.txt = antigorite 

c_w_MP-TXH-045_0-125.txt = MAC

k_JB-JLB-608_75-125.txt = dolomite 

c_w_JB-JLB-E62.txt = siderite 

c_w_semiantracite_0_100.txt = semianthracite 

 

Intended use

These data support the reproducibility of the results presented in the associated publication and allow further comparative or spectral analyses of VIR hyperspectral observations.

Files

bs1_data_err.txt

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