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NASA provides two XDF APIs, in Perl and in Java. XDF is used to store high-dimensional data and information related to it in compact XML format. The purpose is to have interchangeable and high quality format that can be used as a main archive format for this kind of data. [1] The XDF project and related development have been halted (2002,2006).
The S&P 500 is a stock market index maintained by S&P Dow Jones Indices. It comprises 503 common stocks which are issued by 500 large-cap companies traded on the American stock exchanges (including the 30 companies that compose the Dow Jones Industrial Average). The index includes about 80 percent of the American market by capitalization.
TDRS Program Logo Location of TDRS as of March 2019 An unflown TDRS on display at the Steven F. Udvar-Hazy Center in Chantilly, Virginia.. The U.S. Tracking and Data Relay Satellite System (TDRSS, pronounced "T-driss") is a network of American communications satellites (each called a tracking and data relay satellite, TDRS) and ground stations used by NASA for space communications.
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The desk units would set up the ticker symbol code for the desired stock by mechanical means actuating micro switches. The local control box would continuously interrogate each desk unit in sequence and send a request data packet by Dataphone to the local drum memory which would then send return data packets back to the local brokerage office.
The Market Identifier Code (MIC) (ISO 10383) is a unique identification code used to identify securities trading exchanges, regulated and non-regulated trading markets.The MIC is a four alphanumeric character code, and is defined in ISO 10383 [1] by the International Organization for Standardization (ISO). [2]
It looks to be another day where technology stocks are the market's worst performers. Let's take a deeper look at some of today's biggest stories. NVIDIA Down 3% Premarket.
In 2011, Nasdaq created the NASDAQ-500 to track the 500 largest stocks on Nasdaq, and the Nasdaq-400, tracking those stocks not included in the Nasdaq-100. [ citation needed ] Nasdaq has also divided the 100 into two distinct sub-indices; the Nasdaq-100 Tech follows those components who service the tech sector, and the Nasdaq-100 Ex-Tech, which ...