CEDAR email: CEDAR Letter of Support for TIMED

[Lynn Harvey]

Dear CEDAR Community,

As many of you are aware, NASA’s TIMED mission is slated for termination under the current President’s Budget Request, with data operations potentially ending as soon as October 1. This would result in the loss of SABER, GUVI, TIDI, and SEE and create an unprecedented gap in our ability to observe the mesosphere and lower thermosphere.
As Chair of the CEDAR Science Steering Committee (CSSC), I have drafted a community letter of support to NASA Heliophysics Division Director Dr. Joe Westlake. The letter emphasizes that TIMED remains fully functional and continues to provide foundational datasets that underpin atmospheric and space weather science. Without TIMED, we risk “flying blind” in a critical geospace region at a time when LEO and VLEO satellite operations are expanding rapidly.
Your support is vital to show the breadth and strength of our community’s voice in advocating for TIMED. If you agree with the content of the letter and would like to add your name as a signatory, please do so here<https://docs.google.com/document/d/1f-H-MisPzMXGw-I_ce-KBHngK3CFLdiI/edit>:
[https://lh7-us.googleusercontent.com/docs/AHkbwyKU-1jWb_MxAkLeEgrUxuUV_TElxrf5dlf2iBJNrEWc-8HVMH5oVbsGL59rIG4uPgN1V5u4axWjT7-qOofqPqON2wnOTEjZBzuMig=w1200-h630-p]<https://docs.google.com/document/d/1f-H-MisPzMXGw-I_ce-KBHngK3CFLdiI/edit>
CEDAR_Letter_of_Support_for_TIMED_20250922.docx<https://docs.google.com/document/d/1f-H-MisPzMXGw-I_ce-KBHngK3CFLdiI/edit>
September 24, 2025 Dr. Joe Westlake Director, Heliophysics Division NASA Headquarters Subject: Urgent Request to Sustain TIMED Operations Dear Director Westlake, On behalf of the Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR) community, I am writing to express our deep concern...
docs.google.com
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The deadline to sign is midnight ET Monday September 29. I will then send this letter to Director Westlake on September 30, prior to a potential government shutdown on October 1.
Thank you for considering this urgent request, and for your continued dedication to advancing CEDAR science.
With appreciation,
V. Lynn Harvey
Chair, CEDAR Science Steering Committee

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