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MODIS Rapid Response system (near real time images) NASA OnEarth (Web service for MODIS imagery) (archived 12 July 2003) Visible Earth: Latest MODIS images (archived 1 July 2006) MODIS Sinusoidal: Projection 6842 – MODIS Sinusoidal; Python: accessing near real-time MODIS images and fire data from NASA's Aqua and Terra satellites
VIIRS was launched on board Suomi NPP by a United Launch Alliance Delta II rocket from the Vandenberg Air Force Base at 5:48 am EDT on 28 Oct, 2011. [6] VIIRS was designed to expand upon the data collected by the aging MODIS and AVHRR sensors by collecting radiometric measurements of Earth in the visible and infrared spectra.
The Earth Observing System Data and Information System (EOSDIS) is a key core capability in NASA's Earth Science Data Systems Program. Designed and maintained by Raytheon Intelligence & Space, it is a comprehensive data and information system designed to perform a wide variety of functions in support of a heterogeneous national and international user community.
2011 Enhanced vegetation index based on MODIS Terra data. The enhanced vegetation index (EVI) is an 'optimized' vegetation index designed to enhance the vegetation signal with improved sensitivity in high biomass regions and improved vegetation monitoring through a de-coupling of the canopy background signal and a reduction in atmosphere influences.
Many computer systems measure time and date using Unix time, an international standard for digital timekeeping.Unix time is defined as the number of seconds elapsed since 00:00:00 UTC on 1 January 1970 (an arbitrarily chosen time based on the creation of the first Unix system), which has been dubbed the Unix epoch.
The term "timestamp" derives from rubber stamps used in offices to stamp the current date, and sometimes time, in ink on paper documents, to record when the document was received. Common examples of this type of timestamp are a postmark on a letter or the "in" and "out" times on a time card .
Presentation time stamps have a resolution of 90kHz, suitable for the presentation synchronization task. The PCR or SCR has a resolution of 27MHz which is suitable for synchronization of a decoder's overall clock with that of the usual remote encoder, including driving TV signals such as frame and line sync timing, colour sub carrier, etc. [ 1 ]
The ANSI X9.95 standard for trusted timestamps expands on the widely used RFC 3161 - Internet X.509 Public Key Infrastructure Time-Stamp Protocol by adding data-level security requirements that can ensure data integrity against a reliable time source that is provable to any third party.