Announcement of Opportunity
for Membership in the
SOLAR-C Science Working Group


3 October 2022

Through this Announcement of Oppportunity (AO), the Director of Science solicits proposals for membership of the SOLAR-C Science Working Group (SWG). This AO is open to scientists affiliated with institutes located in the ESA Member States.

The SOLAR-C space mission has been selected in 2020 by ISAS/JAXA. It aims to provide coverage of the entire solar atmosphere with very high spatial and temporal resolution, spectral coverage and sensitivity across a wide EUV wavelength range. The mission is composed of an EUV High-Throughput Spectroscopic Telescope (EUVST) with a slit-jaw imaging system. The payload is complemented by the EUV Solar Spectral Irradiance Monitor (SoSPIM). The EUVST spectrometer and context imager will contribute to providing answers to a key question in solar physics: what are the fundamental plasma processes that drive solar activity? The most significant examples of these processes are atmospheric heating and coronal mass ejections.

SOLAR-C is an international mission, with the launch, spacecraft, EUVST telescope components, and mission operations provided by JAXA, while some EUVST components for spectroscopy and imaging, thermal vacuum test and calibration are provided by European partners (Germany, Italy and France) and NASA. The Solar Spectral Irradiance Monitor (SoSPIM) is provided by Switzerland, with the participation of Belgium.

ESA's main hardware contribution will be the short wavelength (SW) camera for the EUVST spectrograph instrument. In addition, ESA will provide high-latitude ground station coverage to the mission.

Up to three members of the SWG will be appointed through the present AO. The ESA-selected members will serve for a renewable term of three years.

Early career scientists are specifically encouraged to apply.

Full details of this Announcement of Opportunity, including the appointment requirements and conditions, a description of the SOLAR-C science management structure, and the format and contents of the application, can be found in the Announcement of Opportunity for Membership in the SOLAR-C Science Working Group document.

Application Submission

Applications, in PDF format, must be submitted using the submission form linked below, before the deadline of 3 November 2022, 12:00 (noon) CET.

Application Submission Form
The deadline for receipt of proposals is:
3 November 2022, 12:00 (noon) CET


Schedule for this AO and important dates

Activity Date
AO for Membership in SOLAR-C Science Working Group issued 3 October 2022
Deadline for receipt of applications for SOLAR-C Science Working Group membership 3 November 2022, 12:00 (noon) CET
SOLAR-C Science Working Group members selected End of 2022



Enquiries regarding this AO should be addressed to:

Luigi Colangeli
Programme Advisor
Directorate of Science
European Space Agency


Last updated: 3 November 2022


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