MAESTRO instrument operation and  performance over two decades in orbit

Zou, Jiansheng; McElroy, C. Thomas; Drummond, James R.; Walker, Kaley A.; Jeffery, Paul S.

doi:10.5194/amt-19-1991-2026

Articles | Volume 19, issue 6

https://doi.org/10.5194/amt-19-1991-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-19-1991-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 6

Research article

|

19 Mar 2026

Research article |

| 19 Mar 2026

MAESTRO instrument operation and performance over two decades in orbit

Jiansheng Zou, C. Thomas McElroy, James R. Drummond, Kaley A. Walker, and Paul S. Jeffery

Data sets

Atmospheric Chemistry Experiment SciSat Level 2 Processed Data, v3.5/v3.6 Peter Bernath et al. https://doi.org/10.20383/102.0495

Short summary

Two decades of operations and performance for the MAESTRO instrument are reviewed. Topics addressed include: (a) occultation measurement schemes, (b) MAESTRO's field of view (FOV) on the Sun, (c) FOV changes on the solar disk during occultations and their impact on calculated transmittances, (d) the relation between the MAESTRO and ACE-FTS FOVs, (e) verification of wavelength assignment, and how it has been affected by thermal environment changes, and (f) the determination of MAESTRO tangent heights.