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TEMPO Level 2 "xtrack" and "mirror_step" dimensions

https://forum.earthdata.nasa.gov/viewtopic.php?t=7745

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TEMPO Level 2 "xtrack" and "mirror_step" dimensions

Posted: Thu Mar 12, 2026 8:16 am America/New_York
by ASDC - ghayescrepps
What are the "xtrack" and "mirror_step" dimensions are in the TEMPO Level 2 files?

Re: TEMPO Level 2 "xtrack" and "mirror_step" dimensions

Posted: Thu Mar 12, 2026 8:18 am America/New_York
by ASDC - ghayescrepps
The “xtrack” dimension denotes the North-South direction in fixed 2,048 step intervals. This variable correlates approximately to the latitude coordinate. The “mirror_step” dimension denotes the East-West direction and can vary by granule (for nominal operations, there are typically 131 or 132 mirror steps per granule). This variable correlates approximately to the longitude coordinate.
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