CLASP, the
Chromospheric
LAyer
Spectro
Polarimeter, is a sounding rocket instrument providing
polarization measurements of ultraviolet light emitted from the sun's
atmosphere. Flight data was taken 2015-09-03 from 17:02:59 - 17:09:18 UT. The
context Slit Jaw imager observes in a bandpass centered on 121.6nm
(Lyman-α) with ~3.5 nm full width half maximum. The two
spectro-polarimetric imagers observe in a wavelength range around Lyman-α
at 121.6 nm with different, but overlapping wavelength windows for the two
cameras. Both cameras observe Lyman-α at 121.6nm and an O V line at
121.83 nm. SP2 additionally observes the Si III line at 120.65 nm. The data
released here are calibrated (see user's guide), and both polarization-modulated
(for higher cadence) and demodulated data (Stokes parameters) are provided. IDL
routines and the user's guide for CLASP will be provided in a SolarSoft code
package. Questions about CLASP can be directed to Amy Winebarger
(amy.r.winebarger@nasa.gov).
See
CLASP Sounding Rocket Mission Opens New Research Window in Solar Physics for more information.
Name Last modified Size Description
Parent Directory -
coordinated_observations/ 2020-08-02 22:53 - Directory containing IRIS coordinated observation files
CLASP_SP.zip 2020-08-02 22:49 142M
Image: NASA and a global science team have used observations from
CLASP sounding rocket mission to provide the first ultraviolet
polarization measurements of the sun's outer atmosphere.