Mission Overview

sketch of JWST

Wavelength Coverage

JWST wavelength coverage

The James Webb Space Telescope features a 6.5 meter segmented primary mirror and 4 science instruments, each of which offers a variety of configurations and operating modes for infrared observing.

Active From

Launched December 25, 2021.

Resolution 

Varies by instrument and observing mode.  

Capabilities

  • Imaging
  • Spectroscopy
  • Time-Series Observations
  • High Contrast Imaging

For more  information, please refer to the JWST Observer website.

Instruments

  • MIRI

    MIRI

    Mid-InfraRed Instrument 4.9 to 28.8 μm

  • NIRCam

    NIRCam

    Near-InfraRed Camera 0.6 to 5 μm

  • NIRISS

    NIRISS

    Near-InfraRed Imager and Slitless Spectrograph 0.6 to 5 μm

  • NIRSpec

    NIRSpec

    Near-InfraRed Spectrograph 0.6 to 5.3 μm

table

 

MIRI

NIRCam

NIRISS

NIRSpec

Imaging X X X  
Integral Field Spectroscopy X     X
Multi-Object Spectroscopy       X
Single-Object and Time-Series Spectroscopy X X X X
Wide-Field Slitless Spectroscopy   X X  
Time-Series Imaging X X    
Coronagraphy X X    
Aperture Masking Interferometry     X  

 

Featured Data Products

JWST data will be available in various stages:

Search Tools

  • MAST JWST Search

    the landing page of the MAST JWST search

    Search through JWST observations using target names, program IDs, exposure type, CRDS context, file creation date, and more.

  • MAST Portal

    MAST Portal

    Search multiple missions using target names or coordinates.

  • MAST API

    MAST API

    Tools for programmatically querying the MAST Portal.

  • exo.MAST

    exo.MAST homepage.

    Find MAST data for known planets, objects of interest, or TESS TCE's.

Documentation

Supplemental Links