• Organization: National Institute of Standards and Technology
• Updated: 2005-08-01 00:00:00

This handbook provides a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format. The compilation includes energy levels, ionization energies,...

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• Organization: National Institute of Standards and Technology
• Updated: 2009-03-01 00:00:00

Atomic Reference Data for Electronic Structure Calculations contains total energies, partial energies and orbital eigenvalues for the atoms hydrogen through uranium, as computed in several...

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• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

Background Quantitative information on the types of inter-atomic interactions at the MHC-peptide interface will provide insights to backbone/sidechain atom preference during binding....

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• Organization: National Institute of Standards and Technology
• Updated: 2023-01-20 00:00:00

Experimental and modeling data from the manuscript: 'Integrating planar photonics for multi-beam generation and atomic clock packaging on chip', C. Ropp, et.al., accepted for publication in Light:...

• Organization: National Institute of Standards and Technology
• Updated: 2022-10-10 00:00:00

Data from figure 4 "Measuring photonic optomechanical devices" in manuscript "Integrated photonic optomechanical atomic force microscopy probes batch fabricated using deep UV...

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• Organization: Department of the Interior
• Updated: 2020-10-08T00:00:00Z

The nanoscale molecular composition of kerogen is a challenging parameter to characterize given the chemical and structural complexity exhibited by this important biopolymer. However, kerogen...

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• Organization: National Institute of Standards and Technology
• Updated: 2011-12-01 00:00:00

The Elemental Data Index provides access to the holdings of NIST Physical Measurement Laboratory (PML) online data organized by element. It is intended to simplify the process of retrieving online...

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• Organization: National Institute of Standards and Technology
• Updated: 2014-09-19 00:00:00

References contained in this database are from Bibliography on Atomic Energy Levels and Spectra, NBS Special Publication 363 and Supplements, as well as current references since the last published...

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• Organization: National Institute of Standards and Technology
• Updated: 2014-09-19 00:00:00

This interactive database, maintained by the NIST Atomic Spectroscopy Data Center, contains more than 6000 references, dating from 1889 through current year and is updated regularly in intervals...

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• Organization: National Institute of Standards and Technology
• Updated: 2014-09-19 00:00:00

This interactive database, maintained by the NIST Atomic Spectroscopy Data Center, contains more than 8000 references, dating from 1914 through current year and is updated regularly in intervals...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-09

Rocket Experiment for Neutral Upwelling 2, RENU2, UltraViolet PhotoMultiplier Tube, UVPMT, Counts. The UVPMT Instrument is used to observe Atomic Oxygen Signatures in Sunlight, that is, above the Payload.

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• Organization: National Institute of Standards and Technology
• Updated: 2004-12-01 00:00:00

This data collection contains 5,228 infrared spectra of different compounds along with chemical structures for most of them. Spectra are provided on a CD-ROM in the JCAMP-DX (Joint Committee for...

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• Organization: Department of the Interior
• Updated: 2022-08-11T00:00:00Z

This data release contains geochemical data from selected U.S. Geological Survey (USGS) projects from the 1960s-1980s that were previously unpublished as digital data. The objective of those...

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• Organization: City of New York
• Updated: 2025-11-24

Atomic polygons serve as a set of basic building blocks for generating the polygons of many of the district types represented in the NYC Street Centerline (CSCL) database. Feature classes such as...

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• Organization: National Institute of Standards and Technology
• Updated: 2010-08-01 00:00:00

This database provides critical atomic and molecular data needed in order to evaluate the feasibility of using laser cooled and trapped Group II atomic species (Mg, Ca, Sr, and Ba) for...

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• Organization: National Institute of Standards and Technology
• Updated: 2017-11-01 00:00:00

This database provides access and search capability for NIST critically evaluated data on atomic energy levels, wavelengths, and transition probabilities that are reasonably up-to-date. The Atomic...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

The instrument was designed to determine the composition of the neutral thermosphere/exosphere of Venus. The term composition includes both the type of neutral gases present and their quantitative...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set was designed to determine the composition of the neutral thermosphere/exosphere of Venus. The term composition includes both the type of neutral gases present and their quantitative...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set has at least preliminary composition for every data point measured but not necessarily final composition values. The instrument was designed to determine the composition of the...

• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

The instrument was designed to determine the composition of the neutral thermosphere/exosphere of Venus. The term composition includes both the type of neutral gases present and their quantitative...