Mission Overview

Map of Observations

K2 footprints on the sky.

Wavelength Coverage

mission coverage

The K2 mission observed 100 square degrees for 80 days each across 20 different pointings along the ecliptic.  The mission began when the original Kepler mission ended due to loss of the second reaction wheel in 2011.  The design of the K2 mission needed to periodically change the telescope's pointing to sample a variety of Galactic sight lines to maintain a reasonable pointing stability, balanced via the solar wind.  While the mission continued to observe stars to detect transiting exoplanets, the variety of pointings enabled a wider variety of astrophysical research projects; in fact the K2 mission was fully Guest Investigator-driven.  The mission produced the same pixel-level and lightcurve data products as the original Kepler mission, however, the mission's planet search pipeline was not run.  A number of community-contributed lightcurves with pointing drift errors greatly mitigated were provided as High Level Science Products, and can complement the mission data in many science cases.

Active From

Feb. 4, 2014 - Sept. 26, 2018

Resolution 

4 arcseconds / pixel

Capabilities

  • Time Series
  • Photometry
  • Imaging

On this Page

MAST Portal

Search multiple missions using target names or coordinates.

exo.MAST

Find and download exoplanet parameters, data visualizations, and MAST holdings by exoplanet.

K2 Data Search & Retrieval

K2-specific target pixel and lightcurve search.

K2 EPIC Search

Search the EPIC stellar catalog.

MAST API

Tools for programmatically querying the MAST Portal

Featured Data Products

All K2 Data Products
Full Frame Images
astro
Full Frame Images
Raw, calibrated, and uncertainty full frame images.
Target Pixel Files
Example K2 target pixel file.
Target Pixel Files
Target pixel files at short or long cadence.
Light Curves
Example K2 light curve.
Light Curves
Extracted, calibrated light curves at short or long cadence.

Primary Documents

Featured Document Image

July 24, 2019

K2 Handbook

The K2 Handbook describes the engineering challenges and mitigation strategies of the K2 mission. It should be used in conjunction with the Kepler Archive Manual, Kepler Instrument Handbook, and Kepler Data Characteristics Handbook.

2 MB

December 17, 2018