Section I: Introduction to ALFA and GALFA . Section II: System Description . ... ALFA receives 7 beams, 2 polarizations per beam, each covering 1225-1525 MHz. The 14 IF signals cover nominally the 100 to 400 MHz band. ... A high-resolution, low-bandwidth spectrometer (8K channels covering a 7 MHz bandwidth) . ... Each spectrometer board handles two polarizations from one telescope beam.The baseband signals are to be digitized by four 8-bit ADCs at 100 Msamples/sec. ... Bandwidth: . ...

... Instrument Description . Software: Version 4.0 . Version 3.0:Complete Documentation . ... ИОНОЗОНД ПАРУС, разработанный в ИЗМИРАН, предназначен для диагностики ионосферы и оперативного прогноза КВ связи. ... Общая структура ИОНОЗОНДА ПАРУС, Технические Характеристики , Конструктивные параметры на настоящий момент соответствуют модификации Комплекса: ВЕРСИЯ 3.0 . ... Там же находится полное описание Комплекса ИОНОЗОНД ПАРУС: ВЕРСИЯ 3.0 . ... 2004 IONOSONDE PARUS ...

It is a matter of common knowledge that in processes of genesis and evolution of many solar phenomena participate magnetic fields of sunspots. ... As a basis for formation of the database we take data on magnetic fields, collected by set of observatories during many years of observations. ... Section "Magnetic field data" contains data of magnetic field observation for separate sunspots, presented in standard text format (ASCII). ... Description of structure of these files is presented here . ...

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Your Description Is To Vague. Forum List | ... Post Message | ... www.astronomy.net . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Multichannel Flare Spectrograph . ... phi - the angle between the green vertical line passing through the solar disk image and the violet radius vector "r" of the object located at the center of the spectrograph slit- red cross. positive - clockwise, negative - counterclockwise . ... mx = x coordinate of the coelostat main mirror . ... x : carthesian solar coordinate alog axis parallel to solar equator (in arcsec) . y : carthesian solar coordinate alog axis parallel to solar axis (in arcsec) ...

About us . ... Telescopes . ... Apart from the 6-meter telescope BTA two small telescopes are operative at SAO: the 1-m and 0.6-m telescopes, both manufactured by Carl Zeiss, Jena, are located near the BTA. ... These telescopes are used for adjusting the equipment and techniques of observations used at the BTA. ... The observational time allocation and also a brief description of the equipment of the 1-m telescope, which is used either permanently or mainly on this telescope, are presented below. ...

. Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . Links . About authors . Russian pages . The solar regions . NOAA 11300's . NOAA 11200's . NOAA 11100's . NOAA 11000's . NOAA 10900's . NOAA 10800's . NOAA 10700's . NOAA 10600's . NOAA 10500's . NOAA 10400's . NOAA 10300's . NOAA 10200's . NOAA 10100's . NOAA 10000's . NOAA 09900's . NOAA 09800's . NOAA 09700's . NOAA 09600's . NOAA 09500's . NOAA 09400's . NOAA 09300's .

... This is possible at modest cost due to the low moments of inertia of the telescope and enclosure. ... This same performance will be achieved in higher winds when the telescope enclosure is facing away from the wind, or by using wind screens. ... The telescope system (MILT) will be remotely operable with an on-site operator's assistance by an astronomer located at one of the ARC member institutions. ... Mean Wind Speed . ... Offsets > 10 deg: 1 arc sec rms max . ... 5 sec max, tracking to tracking . ...

... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

. Bri ef description of gamma-ray spectrometer GRS

... DESCRIPTION General Catalog of Variable Stars (GCVS database) . ... Kholopov P.N., Samus N.N., Durlevich O.V., Kazarovets E.V., Kireeva N.N., Tsvetkova T.M., 1990, General Catalogue of Variable St