2019 Heliophysics Medium-Class Explorer (MIDEX)

2019 Heliophysics Medium-Class Explorer (MIDEX) AO

The National Aeronautics and Space Administration (NASA) issues this Announcement of Opportunity (AO) for the purpose of soliciting proposals for investigations to be implemented through its Heliophysics Explorers Program. All investigations proposed in response to this solicitation must support the goals and objectives of the Heliophysics Explorers Program, must be implemented by Principal Investigator (PI) led investigation teams, and must be implemented through the provision of complete spaceflight missions.

Since the early 1990s, the Explorers Program has provided several classes of flight opportunities for addressing heliophysics science objectives. Additional information concerning these areas of investigation is provided through appropriate links found on the SMD homepage at https://science.nasa.gov/heliophysics/. Explorers missions are defined by their cost caps and are designed to increase the number of flight opportunities in response to recommendations from the scientific community.

2019 Heliophysics MIDEX News

• Selection Announcement

  On February 10, 2022, NASA announced the science investigations selected for the 2019 Heliophysics Medium-class Explorers (MIDEX) Announcement of Opportunity (AO) (NASA Press Release 22-017).

• CSR Evaluation Plan Amendment Announcement

  CSR Evaluation Plan Amendment Announcement On August 4, 2021, the 2019 Heliophysics MIDEX CSR Evaluation Plan slides 2, 7, 9, 28, 46, and 47 were amended to reflect the changes in the evaluation management team and the current evaluation process. A change log was added as slide 48.
  New text is bold; deleted text is struck through.

• CSR Evaluation Plan Amendment Announcement

  On April 15, 2021, the 2019 Heliophysics MIDEX CSR Evaluation Plan slides 9, 17, 18, 26, 35, and 45 were amended to reflect the changes in the Guidelines and Criteria for the Phase A Concept Study and the current evaluation process.
  New text is bold; deleted text is struck through.

• Selection Announcement

  On August 28, 2020, NASA announced the science investigations selected for the 2019 Heliophysics Medium-class Explorers (MIDEX) Announcement of Opportunity (AO) (NASA Press Release 20-083).

• Evaluation Plan Amendment Announcement

  On May 12, 2020, the 2019 Heliophysics MIDEX AO Evaluation Plan slides #25 and #38 were amended to reflect the current evaluation process.
  New text is bold; deleted text is struck through.

• AO Amendment #1 FBO Announcement

  On 07/23/2019, NASA released an AO Amendment #1 FBO announcement on the 2019 Heliophysics MIDEX AO Release of Amendment #1 to the Announcement of Opportunity for NASA Heliophysics Explorers Program 2019 Medium-Class Explorer (MIDEX).

• AO FBO Announcement

  On 07/02/2019, NASA released an AO FBO announcement on the 2019 Heliophysics MIDEX AO (Release of an Announcement of Opportunity for NASA Heliophysics Explorers Program 2019 Medium-Class Explorer (MIDEX) Missions).

• DRAFT AO FBO Announcement

  On 05/06/2019, NASA released a DRAFT AO FBO announcement on the 2019 Heliophysics MIDEX AO (DRAFT Announcement of Opportunity for NASA Heliophysics Explorers Program 2019 Medium-Class Explorer (MIDEX) Missions for Community Comment).

• Community Announcement

  On 12/10/18, NASA released a community announcement on the 2019 Heliophysics MIDEX AO (NASA Heliophysics Explorers Program 2019 MIDEX Announcement of Opportunity Planning Information).

++ SOMA Home Page

AO

• Announcements
• Solicitation
• DRAFT Solicitation
• Pre-Proposal Conference
• Evaluation Plan
• AO Q&A
• Program Library
• Teaming Interest
• Guidelines & Criteria for the Phase A Concept Study (updated 6/15/2021)
• Concept Study Kickoff
• Concept Study Q&As (updated 6/8/2021)
• CSR Evaluation Plan (updated 8/4/2021)