Skip to main content

Description

These Level 1B time-ordered telemetry data are used for system-level, quality control analysis by the Advanced Topographic Laser Altimeter System (ATLAS) ICESat-2 Science Investigator-led Processing System (SIPS). They also provide source data for the Level 2 products and the Precision Orbit Determination (POD) and Precision Pointing Determination (PPD) computations.

Version Description

-Updated calibration data products that affect computation of TOF
-Updated radiometric calibrations
-Updated variable names related to sensitivity dependence on misalignment
-Added "maximum apparent strength" values to dead-time correction tables
-Mitigated an issue that caused erroneous jumps in inertial measurement unit gyro timestamps at granule boundaries
-Corrected the computation of timetags for the A_MCE_POS packet
-Updated the PCE alignment code to avoid using transmit events with missing threshold crossings when aligning transmit events across PCEs

Product Summary

Platforms
ICESat-2
Instruments
ATLAS
Spatial Extent

N: 88 S: -88 E: 180 W: -180

Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2018-10-13 to Present
Concept ID
C2842844928-NSIDC_CPRD
Data State
ACTIVE
Number of Files/Granules
546526
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., & Pingel, A. (2025). ATLAS/ICESat-2 L1B Converted Telemetry Data, Version 7 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ATLAS/ATL02.007 Date Accessed: 2026-01-09

Documents