Remote access users should download HEASOFT 6.21 or later versions and set the $CALDB environment variable to https://heasarc.gsfc.nasa.gov/caldb. Note that CFITSIO ftp access to the HEASARC servers is broken in versions of HEASOFT prior to HEASOFT 6.21.
Full Answer
You are logging in to the GES DISC web site!
The Earthdata Login provides a single mechanism for user registration and profile management for all EOSDIS system components (DAACs, Tools, Services). Your Earthdata login also helps the EOSDIS program better understand the usage of EOSDIS services to improve user experience through customization of tools and improvement of services.
Get single sign-on access to all your favorite EOSDIS sites
You are accessing a U.S. Government information system, which includes: (1) this computer; (2) this computer network; (3) all computers connected to this network including end user systems; (4) all devices and storage media attached to this network or to any computer on this network; and (5) cloud and remote information services.
WORKING REMOTELY
For individuals who participate in telework programs or need access to the NSF network while traveling, remote access provides the ability to access the NSF network. When working away from the NSF building, you may need to access NSF applications, systems, and internal resources such as InsideNSF, SharePoint sites, and WebTA.
SEAMLESS MOBILE COMPUTING (SMC)
If you do not already have a Windows or Mac SMC laptop, visit the SMC page on InsideNSF or contact your IT Specialist or IT Help Central.