Comprehensive line-spread function error budget for the Off-plane Grating Rocket Experiment

The Off-plane Grating Rocket Experiment (OGRE) is a soft x-ray grating spectrometer to be flown on a suborbital rocket. The payload is designed to obtain the highest-resolution soft x-ray spectrum of Capella to date with a resolution goal of R (λ/Δλ) > 2000 at select wavelengths in its 10 to 55 Å bandpass of interest. The optical design of the spectrometer realizes a theoretical maximum resolution of R ≈ 5000, but this performance does not consider the finite performance of the individual spectrometer components, misalignments between components, and in-flight pointing errors. These errors all degrade the performance of the spectrometer from its theoretical maximum. A comprehensive line-spread function (LSF) error budget has been constructed for the OGRE spectrometer to identify contributions to the LSF, to determine how each of these affects the LSF, and to inform performance requirements and alignment tolerances for the spectrometer. In this document, the comprehensive LSF error budget for the OGRE spectrometer is presented, the resulting errors are validated via raytrace simulations, the implications of these results are discussed, and future work is identified.


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Work Title Comprehensive line-spread function error budget for the Off-plane Grating Rocket Experiment
Open Access
  1. Benjamin D. Donovan
  2. Randall L. McEntaffer
  3. James H. Tutt
  4. Bridget C. O'Meara
  5. Fabien Grisé
  6. William W. Zhang
  7. Michael P. Biskach
  8. Timo T. Saha
  9. Andrew D. Holland
  10. Daniel Evan
  11. Matthew R. Lewis
  12. Matthew R. Soman
  13. Karen Holland
  14. David Colebrook
  15. Fraser Cooper
  16. David Farn
License In Copyright (Rights Reserved)
Work Type Article
  1. Journal of Astronomical Telescopes, Instruments, and Systems
Publication Date January 1, 2021
Publisher Identifier (DOI)
Deposited July 15, 2021




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Work History

Version 1

  • Created
  • Added 019801_1.pdf
  • Added Creator Benjamin D. Donovan
  • Added Creator Randall L. McEntaffer
  • Added Creator James H. Tutt
  • Added Creator Bridget C. O'Meara
  • Added Creator Fabien Grisé
  • Added Creator William W. Zhang
  • Added Creator Michael P. Biskach
  • Added Creator Timo T. Saha
  • Added Creator Andrew D. Holland
  • Added Creator Daniel Evan
  • Added Creator Matthew R. Lewis
  • Added Creator Matthew R. Soman
  • Added Creator Karen Holland
  • Added Creator David Colebrook
  • Added Creator Fraser Cooper
  • Added Creator David Farn
  • Published
  • Updated
  • Updated
  • Updated