Computer Ephemeris. Second order reduction quantities. Explanations. This page consist of four little tables. First and second tables contains J a (in 0.000001 s ) and J d (0.0001") for nothern declination, third and fourth contains the same information but for southern declination. Each table have 13 informational columns headed with right ascension values, and some amount of rows, labelled with date. ...

... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...

This Directory contains Images of f-plots & tables of ionospheric station Magadan, repreasented according to years(all parameters for 1999,2000,...)and repreasented according to different parameters- (Tables of different parameters).

... Several attempts to discover the FICN signal in VLBI nutation series made during last years failed. ... We investigated several VLBI CPO series by means of spectral and wavelet analysis. It has been shown that there are several periodic signals with close amplitude around the expected FICN period without any prevailing one that can be reliably associated with the FICN. ... DATA ANALYSIS We analyzed several CPO series obtained in IVS analysis centers by means of spectral and wavelet analysis. ...

. Russian Version [ MS-Win ] . [ News ] . [ Satellite data ] . [ SMIS ] . [ ] . The program is intended for spectral and correlation analysis of satellite images. It contains an large set of spectral and spatial filters. It may be applied for interpolation and data analysis in areas with incomplete information. It allows for approximation of spectrum and correlation functions. Price . Back to SMIS Home Page .

Asteroid 2055 YU55 passes close by Earth; how close did it get? ... As Elizabeth Flock reported: An asteroid the size of an aircraft carrier missed Earth by only 200,000 miles as it flew by Tuesday night the closest an asteroid has been to Earth in 200 years Asteroid 2005 YU55, as it has been dubbed, streaked by at about 30,000 mph, but some scientists and lucky amateur astronomers caught a glimpse in their telescopes, where they saw strange structures on the asteroid\u2019s dark-colored surface. ...

... A single archive was created for Okean-O, Resurs and Meteor-3M data. ... SST for Barents Sea (NOAA Satellits) . ... New section is opened: NOAA satellite data regional archive . ... 5/10/1999 . ... Data from West-Siberian Ground Center are now being submitted to RESURS Data Catalogue on a regular basis . ... RESURS O1 N4 . ... 23/12/1998 . ... Operational Archive of RESURS Data (New Version). ... Archive of GOMS Data. ... Operational Archive of RESURS Data. ... SPUTNIK Web-server has been launched ....