Daily Summary of COMP 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

Coronal Multi-channel Polarimeter (CoMP)

FOV: 1.05 to 1.4 Rsun ; Spatial Resolution: 4.46 arcsec/pixel; Cadence: 5 sec to 1 min.
Simulated CoMP-like data can be generated with the FORWARD Model.
CoMP Intensity
CoMP Intensity
CoMP filtergrams provide calibrated coronal emission intensity in units of millionths of Bsun, where Bsun is the brightness of the solar disk.
412 1074nm images available

34 1079nm images available

CoMP Quick Inversion
CoMP QI sample
Each CoMP Quick Inversion file (one produced per day) includes the line center intensity, linear polarization and magnetic field azimuth. These three images are in one multi-image FITS file, using FITS extensions to hold multiple images (use a fits viewer that can parse these files, such as fv).

CoMP Full Inversion
CoMP Full Inv sample
Each CoMP Full Inversion file (one produced per day) includes the line center intensity, velocity, line width, B field, linear polarization, and azimuth. These six images are in one multi-image FITS file, using FITS extensions to hold multiple images (use a fits viewer that can parse these files, such as fv).
No 1074nm file available

No 1079nm file available