Desing And Implementation Of VIBI Radio Astronomy And Deep Space Measurement Database

VLBI is a "very long baseline interferometry," the abbreviation, which is from the latesixties of the last century developed new techniques of radio astronomy. Due to its highaccuracy and high resolution, so become an important tool for the study of contemporaryastronomy and geodynamics; same time, it is also in space exploration spacecraft precisionorbit determination plays an important role. Chinese VLBI network consists of ShanghaiSheshan Station, Xinjiang Nanshan Station, Beijing Miyun Station and Kunming stations, aswell as Shanghai VLBI data processing centers. Chinese VLBI network in radio astronomyand deep space measurement has carried out VLBI observations: In the country Chang E Onelunar exploration and Chang E II mission, make VLBI observations determined orbitmeasurements for the smooth implementation of the satellite monitoring plays a key role;state in the land network tasks carried out geodetic VLBI observations made precision stationlocation data; in astrophysics, carried out pulsars, active galactic nuclei and otherobservations, the scientific results obtained.Currently, the world’s major astronomical observatory and observation projects arebuilding their own data centers, and proposed the establishment of standardized data and thedata sharing platform. The main focus of astronomical data centers in the United States, Britain, Germany, France, Japan and other developed countries, such as NASA AstronomicalData Center ADC (NASA Astronomical Data Center), Strasbourg Astronomical Data CenterCDS and other data centers. In China, astronomical data center construction is relativelybackward, many VIBL observational data are in text format, or independent fits the datastored on a large hard drive, and do not own VLBI astronomical science databases. This leadsto low utilization data, observing a waste of resources, there is no way to further theunderstanding and development of valuable observations.In order to better manage and maintain data resources, improve utilization ofobservational data for each country VLBI researchers to provide a platform for data sharing,development VLBI radio astronomy and deep-space measurement database is obviouslyessential. Data sharing rules are as follows: Chinese VLBI networks for major nationalprojects Chang E One and Chang-e II VLBI mission orbit determination task, in addition tointernational experts observing subjects receiving application. For deep space VLBIobservation data measured using a separate License. User through a database query systemobservational data they need, and then by the Shanghai Observatory provides data based onthe audit results. For the application of open issues, according to international practice, alldata will be subject topics observations applicants a year later to become the exclusive use ofopen data sharing. Open only to download the data before the subject applicant login. Afterthe opening, registered users can download.VLBI radio astronomy and deep-space measurement database using LAMP technology,namely the Linux operating system platform, database management using mysql database;database system retrieval, query, management and other functions using B/S architecture,the use of apache server provides web services, web pages development using php5and extjsframework. VLBI radio astronomy and deep-space measurement database into operation sofar from the total amount of data5.05TB, record number255806, be visited442,376times,for domestic workers to use astronomical VLBI radio astronomy and deep-spacemeasurement data play an important role.