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Description

This data set (ATL02) contains science unit-converted, time-ordered telemetry data, calibrated for instrument effects, downlinked from the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory. The data are used by the ATLAS/ICESat-2 Science Investigator-led Processing System (SIPS) for system–level, quality control analysis and as source data for ATLAS/ICESat-2 Level-2 products and the Precision Orbit Determination (POD) and Precision Pointing Determination (PPD) computations.

Version Description

Improved/fixed a number of reported QA parameters to better reflect phenomena of concern; Corrected a math error in the ATBD for ATL02 (Equation 5-13) and updated the corresponding receiver return sensitivity code. This calculation interpolates transmit/receive misalignment between AMCS offset updates; Addressed several documentation issues within the ATL02 file metadata related to units and descriptions; Removed the temperature parameter from /ancillary_data/calibrations/nominal_rx_sensitivity. As the nominal receiver sensitivity calibration is no longer indexed by temperature, this parameter has become irrelevant; Added a patch to detect and correct anomalous transmit fine count swap issues; Corrected a code error such that the temperature used for CAL-47 now references the correct thermistor; Corrected for a coarse count issue that occurs simultaneously with the fine count swap issue described in (5) (above). The new method subtracts 1 from the coarse count if the start marker is equal to 1.

Product Summary

Platforms
ICESat-2
Instruments
ATLAS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Reference System(s)
WGS 84 (EPSG:4326)
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2018-10-13 to 2020-11-11
Concept ID
C4100633195-NSIDC_CPRD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
1B
Published
Science Keywords
Sensor Characteristics

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Martino, A., Bock, M., Gosmeyer, C., Field, C., Neumann, T., Hancock, D., Jones III, R., Dabney, P., Webb, C., & Lee, J. (2020). ATLAS/ICESat-2 L1B Converted Telemetry Data, Version 3 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ATLAS/ATL02.003 Date Accessed: 2026-10-07

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Publications Citing This Dataset

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Title Authors Year Referenced Datasets
ICESat2 pointing calibration and geolocation performance
  • Luthcke, S. B., Thomas, T. C., Pennington, T. A., Rebold, T. W., Nicholas, J. B., Rowlands, D. D., Gardner, A. S., Bae, S.
ICESat2 Precision Orbit Determination
  • Thomas, T. C., Luthcke, S. B., Pennington, T. A., Nicholas, J. B., Rowlands, D. D.
ICESat2 Constraint Analysis and Monitoring System (CAMS)
  • Rebold, T. W., Luthcke, S. B., Pennington, T. A., Syed, A., Beall, J. L., Sabaka, T. J.
ICESat2 early mission synopsis and observatory performance
  • Magruder, Lori, Neumann, Thomas, Kurtz, Nathan
OnOrbit Radiometric Performance on ICESat2
  • Gibbons, Aimee, Neumann, Thomas, Hancock, David, Harbeck, Kaitlin, Lee, Jeffrey
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