2026-06-17T16:03:07Zhttp://nsidc.org/api/dataset/metadata/oai

oai:nsidc.org/ATL02.0052026-02-13T21:16:15Zcumulusecsretirednasa_nsidc_daac

ATL02.005ATLAS/ICESat-2 L1B Converted Telemetry DataMartino, A. J., Bock, M. R., Gosmeyer, C., Field, C., Neumann, T. A., Hancock, D., Jones III, R. L., Dabney, P. W., Webb, C. E. & Lee, J.ATLAS/ICESat-2 L1B Converted Telemetry Data2021-11-29Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center5false10.5067/ATLAS/ATL02.005https://nsidc.org/sites/default/files/atl02-v005-userguide_1.pdfATL02Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468

CIRES, 449 UCB

University of Colorado

BoulderCO80309-0449USAInvestigatorAnthonyJMartinoInvestigatorMeganRBockInvestigatorCatherineGosmeyerInvestigatorChristopherFieldInvestigatorThomasANeumannthomas.neumann@nasa.gov1-301-614-5923GreenbeltMD20770USAInvestigatorDavidHancockDavid.W.Hancock@nasa.gov

ISIPS Manager

NASA Goddard Space Flight Center

Wallops Flight Facility

Wallops Island, VA

USA

InvestigatorRobertLJones IIIInvestigatorPhilipWDabneyInvestigatorCharlesEWebbInvestigatorJeffLeeEARTH SCIENCESPECTRAL/ENGINEERINGSENSOR CHARACTERISTICS Climatology/Meteorology/Atmosphereicesat2-projectATLASAdvanced Topographic Laser Altimeter SystemICESat-2Ice, Cloud, and land Elevation Satellite-22018-10-132023-01-01deprecated-9090-180180GEOGRAPHIC REGIONGLOBALNot applicableNot applicableNot applicableThese data have been retired and are no longer accessible, though a more recent version of these data may be available.These data have been retired and are no longer available for use, though a more recent version of these data may be available. Cite any prior or planned use of these data according to the recommended citation at https://nsidc.org/about/data-use-and-copyright. For more information on the NASA EOSDIS Data Use Policy, see [https://earthdata.nasa.gov/earth-observation-data/data-use-policy](https://earthdata.nasa.gov/earth-observation-data/data-use-policy).EnglishNASA/GSFC/SED/ESD/I2-SIPSNASA NSIDC DAACNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daacData Center ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-6199

National Snow and Ice Data Center

CIRES, 449 UCB

University of Colorado

BoulderCO80309-0449USAHTTPSHDF5

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.

VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/atl02-v005-userguide_1.pdfATLAS/ICESat-2 L1B Converted Telemetry Data, Version 5 User GuideCEOS IDN DIFVERSION 9.92021-11-292026-02-13NSIDCVersion SummaryChanges for this version include: <ul> <li>Changed transmit/receive optical misalignment calculation to use the history of the Alignment Monitoring Control System (AMCS) calibration results rather than the control loop setpoints. This is due to a change in operational practice where the AMCS setpoint is now updated only after yaw flips and misalignment is allowed to drift more than previously.</li> <li>Added functionality to detect and correct start event/return event (TX/RX) slips; This includes discarding data from some shots and major frames and re-associating affected transmit and receive events. This is done as TX/RX slips caused prolonged errors in time-of-flight computation.</li> </ul>NSIDCMinor VersionNSIDCSpatial Reference SystemsEPSG:4326WGS 84NSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationMartino, A. J., Bock, M. R., Gosmeyer, C., Field, C., Neumann, T. A., Hancock, D., Jones III, R. L., Dabney, P. W., Webb, C. E. & Lee, J. (2021). <i>ATLAS/ICESat-2 L1B Converted Telemetry Data</i>. (ATL02, Version 5). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/ATLAS/ATL02.005">https://doi.org/10.5067/ATLAS/ATL02.005</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue