ATLAS/ICESat-2 L1B Converted Telemetry Data, Version 7
Data set id:
ATL02
DOI: 10.5067/ATLAS/ATL02.007
This is the most recent version of these data.
Version Summary
Version Summary
-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
-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
Overview
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.
Parameter(s):
SENSOR CHARACTERISTICS
Platform(s):
ICESat-2
Sensor(s):
ATLAS
Data Format(s):
HDF5
Temporal Coverage:
- 13 October 2018 to present
Temporal Resolution:
Not Specified
Spatial Resolution:
- Not Specified
Spatial Reference System(s):
- WGS 84EPSG:4326
Spatial Coverage:
- N:88S:-88E:180W:-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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General Questions & FAQs
This article covers frequently asked questions about the NASA NSIDC DAAC's Earthdata cloud migration project and what it means to data users.
This short article describes the customization services available for ICESat-2 data using Earthdata Search.
How to Articles
Many NSIDC DAAC data sets can be accessed using NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.Users have the option to:
To convert HDF5 files into binary format you will need to use the h5dump utility, which is part of the HDF5 distribution available from the HDF Group. How you install HDF5 depends on your operating system.
The NASA Earthdata Cloud is the NASA cloud-based archive of Earth observations. It is hosted by Amazon Web Services (AWS). Learn how to find and access NSIDC DAAC data directly in the cloud.
This article highlights the NSIDC DAAC data sets available with customization options and outlines a workflow for searching, ordering, and customizing data in NASA Earthdata Search. This approach is ideal for users who want to download data to their local machine.