Hardersen IRTF NIR Asteroid Reflectance Spectra
This dataset includes average near-infrared (NIR) reflectance spectra for 68 main-belt asteroids that were observed at the NASA Infrared Telescope Facility (IRTF), Mauna Kea, Hawaii, from April 2001 to January 2015. Raw NIR spectral data were obtained under mostly uniform instrumental conditions and include observations of the asteroids, extinction stars, and solar analog stars that were necessary for data reduction and production of the final average asteroid NIR reflectance spectra. SpecPR and Spextool were used during data reduction to produce the final spectra and both programs utilize similar functions that include sky background subtraction, telluric corrections, channel shifting, and averaging routines. The set of asteroids observed include a wide variety of taxonomic types and include V-, S-, M-, X-types that correspond to a wide variety of surface mineralogies, rock types, and potential meteorite analogs.
Date Available: 2025-05-05
Data Set Info
| PDS4 version | urn:nasa:pds:gbo.ast.hardersen.spectra::1.0 | Browse | Download (8.4 MB) |
| PDS3 version | EAR_A_I0046_3_HARDERSENSPEC_V1_0 | Browse | Download (3.4 Mb) |
The PDS4 bundle was migrated from the PDS3 data set in April 2025. The data content is unchanged.
Use the following citation to reference this data set:
Hardersen,P.S., Hardersen IRTF NIR Asteroid Reflectance Spectra V1.0. urn:nasa:pds:gbo.ast.hardersen.spectra::1.0. NASA Planetary Data System, 2025; 10.26033/y4vh-fz93