Daily Summary of KCOR data for April 20, 2017

Event(s) on this observation date:
(culled from the 2017 event table; a green triangle indicates downloadable movies of the event)
  • JET/POSSIBLE CORONAL MASS EJECTION (E-NE limb) observed by KCor at 1704 - 1836 UT: faint, narrow outflow, appears the end of an earlier CME
  • ACTIVE PROMINENCE (NE limb) observed by CoMP: visible in HeI 1083nm
  • CORONAL MASS EJECTION (N limb) observed by KCor at 2150 - 2218 UT: faint outflow, corresponds to CME visible in LASCO
  • CORONAL MASS EJECTION/PROMINENCE ERUPTION (NW limb) observed by KCor at 1836 - 2218 UT: dark cavity moving outward and arched prominence eruption, CME in LASCO at this location
  • PROMINENCE ERUPTION (NW limb) observed by CoMP: large prominence eruption visible in HeI 1083nm

K-Cor White Light Coronagraph

Currently, FITS are available in Level 1 only; Fully calibrated Level 2 data will be available at a later date.
Field-of-View: 1.05 to 3.00 Rsun, Spatial resolution: 11.3 arcsec (5.643 arcsec/pix), Cadence: 15 sec
K-Cor White Light Level 1 Data

Level 1 data: FITS images are processed to remove instrumental effects and sky polarization, but intensities are not yet fully calibrated. The GIF images contain a power law scaling.

Full resolution and Low-res cropped GIFs available!
(2, 5, or 10): Movie shows
every Nth image
1226 images available

K-Cor White Light Level 1 normalized radially graded filter (NRGF) Data

Level 1 (nrgf) data: FITS and GIF Level 1 images with a normalized radially graded filter (nrgf, Morgan et al. 2009, adapted by Silvano Fineschi and Sarah Gibson for KCor use) to maximize image contrast. These data are ideal for measuring positions of coronal structures such as CMEs and helmet streamers.

The cadence of these specially processed images is 2 minutes. If you require 15 second cadence, please contact us.

Morgan, Huw, Shadia Rifai Habbal, Noe Lugaz, 2009, Mapping the Structure of the Corona Using Fourier Backprojection Tomography, Astrophys. J., 690, pp 1119-1129, DOI: 10.1088/0004-637X/690/2/1119
152 images available