The NASA HEC eBooks website is a set of web-based management tools for requesting and managing computer allocations on NASA's High-End Computing (HEC) resources. If you are currently supported to perform research for NASA, you can use eBooks to request computer time allocations on HEC resources, either in response to annual or semi-annual calls or at any time through the year. HEC resources are located at the NASA Advanced Supercomputing (NAS) facility at Ames Research Center and the NASA Center for Climate Simulation (NCCS) at Goddard Space Flight Center. Information on all available HEC resources, including computing systems, storage and support services, can be found at HEC Resources Information. Instructions for submitting requests for HEC resource allocation can be found at Submission Instructions for all mission directorates.
| Science Mission Directorate(SMD) Rolling Call Deadlines Annually on: March 20 and September 20 |
Aeronautics Research Mission Directorate(ARMD) Rolling Call Deadline Annually on: September 20 |
Human Exploration and Operations Mission Directorate(HEOMD) Rolling Call Deadline Annually on: March 20 |
Space Technology Mission Directorate(STMD) Rolling Call Deadline Annually on: March 20 |
NASA Engineering Safety Center Mission Directorate(NESC) Rolling Call Deadline Annually on: March 20 |
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Access to the NASA HEC eBooks is granted only for registered users. If you already have a username and password, please enter your username and password below, and click on Login. If you are new user and would like to register please click on
User Registration.
If you are having any difficulties using the system, please contact Technical Support, Monday through Friday, from 8:00AM to 5:00PM Eastern Time, by either calling (703) 480-9100, or sending an email message to ebooks@reisys.com. For after hours support, please contact HEC user support at support@hec.nasa.gov, NAS User Services at 800-331-8737 or support@nas.nasa.gov, or NCCS User Services at 301-286-9120 or support@nccs.nasa.gov.
| This is a U.S. Government Resource. This site is intended to be used by the public for information exchange. Any attempt to modify this resource or associated information other than for instructed use is strictly prohibited and may be punishable under the Computer Fraud and Abuse Act of 1986. The Government may monitor and audit the usage of this resource. All persons are hereby notified that use of this resource constitutes consent for monitoring, keystroke recording or auditing. |
