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Small Main-Belt Asteroid Spectroscopic Survey, Phase II V1.0

Metadata Updated: December 7, 2023

This data set contains visible-wavelength (0.435-0.925 micron) spectra for 1341 main-belt asteroids observed during the second phase of the Small Main-belt Asteroid Spectroscopic Survey (SMASSII) between August 1993 and March 1999. The purpose of the SMASSII survey was to provide a new basis for studying the compositional diversity and structure of the asteroid belt. Based on experiences gained from the earlier SMASS survey, SMASSII focused on producing an even larger, internally consistent set of CCD spectra for small (D < 20 km) main-belt asteroids. The observing strategies and procedures used during SMASSII roughly parallel those used in the first survey (Xu et al. Icarus 115 1-35, 1995), though several minor changes were made in instrumentation and in portions of the data reduction process.

Access & Use Information

Public: This dataset is intended for public access and use. License: us-pd

Downloads & Resources



Metadata Created Date December 1, 2022
Metadata Updated Date December 7, 2023
Data Update Frequency irregular

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date December 1, 2022
Metadata Updated Date December 7, 2023
Publisher National Aeronautics and Space Administration
Identifier urn:nasa:pds:gbo.ast.smass2.spectra
Data First Published 2021-05-21
Data Last Modified 2021-05-21
Category Earth Science
Public Access Level public
Data Update Frequency irregular
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 45b549e3-1d9f-48c4-9c07-83e64a2652c3
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Program Code 026:005
Related Documents
Source Datajson Identifier True
Source Hash 5530c3b6f346026fa09a9c640dc137e62bdffaf1612131489a02e0231e21bd14
Source Schema Version 1.1

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