Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

ASDC Upcoming Maintenance Events

RSS Feeds - news, announcements, maintenance.


Date(s) Time Event Impact
Monday, June 18, 2018 to Saturday, June 30, 2018 06:00 am - TBD

ASDC_DAAC LARC Data Downloads: If you are experiencing failed orders or extended submissions, it may be a result of incompatible metadata or server issues. We are currently working on a resolution and do not have an estimate on when the issue will be resolved. Please access OPeNDAP ( for MISR, MOPITT, SAGE and TES products as an alternate method of data retrieval or contact us at for assistance. We apologize for the inconvenience.



Thursday, June 21, 2018 to Saturday, June 30, 2018 09:00 am EST

A new POWER home page with enhanced responsive GIS-enabled web data services and mapping capabilities replaced the SSE site on June 13, 2018. This current set of SSE web applications and website is no longer accessible. The new POWER includes improved solar and meteorological data with all parameters available on a 0.5-degree global grid. The new home page, featuring the updated parameters, schedule updates and FAQ, can be accessed at POWER. Please direct any questions to the POWER Project Team at


Read the Replacement of SSE with NASA's POWER Announcement
Read the SSE Decommission Announcement
Register for POWER/SSE News and Information


Friday, June 22, 2018 to Sunday, June 24, 2018 06/22 @ 08:00 am - 6/24 @ 5:00 pm EST

The ASDC will be performing a comprehensive and required maintenance from Friday, June 22, 2018 through Sunday, June 24, 2018 with preliminary work that may impact availability beginning as early as Thursday evening Jun 21st. The dropbox will remain online during the maintenance activities. The ASDC will prioritize the maintenance activities in order to reduce the impacts to production and web hosting services.


Please expect unavailability of ASDC related websites, Order fulfillment, and the Data Ordering and Subsetting Tools:


- ASDC HTML Ordering Tool
- DataPool FTP and OPeNDAP
- MISR Order and Customization Tool
- CALIPSO, CERES, MOPITT, TAD and TES Search and Subset Tools


While some sites and tools may be available early, you may experience a delay in order fulfillment. Please plan your data orders and activities accordingly. We apologize for any inconvenience.