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Instrument Calibration of the Interface Region Imaging Spectrograph (IRIS) Mission
De Pontieu, B.; Bryans, P.; Liu, W. +15 more
The Interface Region Imaging Spectrograph (IRIS) is a NASA small explorer mission that provides high-resolution spectra and images of the Sun in the 133 - 141 nm and 278 - 283 nm wavelength bands. The IRIS data are archived in calibrated form and made available to the public within seven days of observing. The calibrations applied to the data incl…
IRIS Observations of Spicules and Structures Near the Solar Limb
Vial, J. -C.; Alissandrakis, C. E.; Buchlin, E. +2 more
We have analyzed Interface Region Imaging Spectrograph (IRIS) spectral and slit-jaw observations of a quiet region near the South Pole. In this article we present an overview of the observations, the corrections, and the absolute calibration of the intensity. We focus on the average profiles of strong (Mg II h and k, C II and Si IV), as well as of…
On the Performance of Multi-Instrument Solar Flare Observations During Solar Cycle 24
Milligan, Ryan O.; Ireland, Jack
The current fleet of space-based solar observatories offers us a wealth of opportunities to study solar flares over a range of wavelengths. Significant advances in our understanding of flare physics often come from coordinated observations between multiple instruments. Consequently, considerable efforts have been, and continue to be, made to coord…
An on Orbit Determination of Point Spread Functions for the Interface Region Imaging Spectrograph
De Pontieu, Bart; Kankelborg, Charles; Wülser, Jean-Pierre +1 more
Using the 2016 Mercury transit of the Sun, we characterize on orbit spatial point spread functions (PSFs) for the Near- (NUV) and Far- (FUV) Ultra-Violet spectrograph channels of NASA's Interface Region Imaging Spectrograph (IRIS). A semi-blind Richardson-Lucy deconvolution method is used to estimate PSFs for each channel. Corresponding estimates …