This table has been retired and is no longer being updated. Please use the new Atmospheric Spectroscopy Table to browse and download emission and transmission spectra.

Data Columns in the Transmission Spectroscopy Table

The following table lists all of the data columns in the Transmission Spectroscopy table (transitspec) when using the interactive table and Table Access Protocol (TAP) service.

There are similar documents for the Emission Spectroscopy and other archive data tables. The full list is located in the Documentation Index (expand Data Documentation and then the Table Column Definitions sub-menu).

Some data include more specific information that can also be retrieved as separate columns when pre-filtering interactive tables with URL-based queries. These include:

  • Uncertainties (positive and negative)
  • Displayed String Name (as the value appears in the interactive table)
  • Limits

Digital Object Identifier

If you use archive data or services for your research, please include the following Digital Object Identifier (DOI) as part of your acknowledgment:

DOI 10.26133/NEA10

See Acknowledging the Archive for dataset-specific language. See the full list of NASA Exoplanet Archive DOIs for other data sets and services.

Default Columns

Column Name
Table Label Description Uncertainties Column
(positive +)
(negative -)
Displayed String Name Limit Column Flag Column Number of Measurements
plntname Planet Name Planetary name most commonly used in the literature.          
centralwavelng Central Wavelength [microns] Central wavelength of the transmission spectroscopy observation          
bandwidth Band Width [microns] Band width of the transmission spectroscopy observation          
plntransdep Transit Depth [percentage] The size of the relative flux decrement caused by the orbiting body transiting in front of the star (+) plntransdeperr1
(-) plntransdeperr2
plntransdepstr plntransdeplim    
plnradj Planet Radius [Jupiter radii] Length of a line segment from the center of the planet to its surface, measured in units of radius of Jupiter (+) plnradjerr1
(-) plnradjerr2
plnradjstr plnradjlim    
plnratror Ratio of Planet to Stellar Radius Ratio of the radius of the orbiting body to the radius of the stellar host (+) plnratrorerr1
(-) plnratrorerr2
plnratrorstr plnratrorlim    
plntranmid Transit Mid-Point [BJD] The time given by the average of the time the planet begins to cross the stellar limb and the time the planet finishing crossing the stellar limb (+) plntranmiderr1
(-) plntranmiderr2
plntranmidstr plntranmidlim    
facility Facility Name of the telescope used to perform the transmission spectroscopy observation          
instrument Instruments Name of the instrument used to perform the transmission spectroscopy observation          

Last updated: 14 July 2023