... The fitting package in STSDAS (Space Telescope Science Data Analysis System) relies on two basic techniques (one linear and one non-linear) for fitting functions to data. ... Results show that both methods may generate biased coefficients (at the ~few percent level), and over or under-estimate error bars (at the ~10 percent level), in particular from low signal-to-noise data. ... Function coefficient errors are computed directly from the covariance matrix. ... Abscissa is signal-to-noise. ...

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• Application of the Linear Quadtree to Astronomical Databases
• Variable-Pixel Linear Combination
• A New Stable Method for Long-Time Integration in an N-Body Problem

... The compression of iflo/ lband receivers (lband wide , lband narrow) was measured on 29apr03. ... Center a band at 1415 Mhz and pass it through a 5 Mhz IF filter (centered at 260 MHz). ... Center another band at 1350,1330 Mhz. ... The 1350 data was normalized to full scale while the 1415 Mhz data was normalized to medianTsys -1 (so the radar 1350 scale and the 1415 Mhz scale are not the same). ... You can see the double bumps in the faa radar (this is the 1350 then 1330 pulses spaced by 6 usecs). ...

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• Comets National Astronomy and Ionosphere Center (Arecibo Observatory)
• Arecibo Observatory Receivers
• Arecibo Observatory Narrow S-Band Receiver (2.24-2.42 GHz)

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit–їs . ... Accueil Deux com–Rtes foncent vers la Terre . ... Le 22 mars, la com–Rte P/2016 BA14 PanSTARRS fr–?le la Terre –Љ moins de 10 fois la distance Terre-Lune, soit 3,4 millions de kilom–Rtres. ... Ce n'est qu'–Љ partir du 1er avril qu'il devient possible d'observer la com–Rte sous un ciel sans Lune. ... La coma est en quelque sorte l'atmosph–Rre des com–Rtes. ... Etat du ciel . ...

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... hstpolima: Reduce linear polarization data for HST instruments (currently FOC, NICMOS and WFPC2 are supported). ... Images for the three Stokes parameters (I,Q and U), the linear polarization and position angle and their error images are output. hstpolpoints: Reduce linear polarization data for HST instruments for a set of circular apertures. ... There is a web page http://www.stecf.org/software/impol/ briefly describing the package and giving example polarization maps for HST and model data. ...

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• stecf.impol - an IRAF Imaging Polarimetry Reduction Package
• ST-ECF IRAF package

... Hence in the frequency domain we have a filter : . ... 3. б is a general eigenfunction of the system б hence we can define the Laplace Transform : . ... Represent a function graphically by means of a pole-zero plot. ... Magnitude is the product of the distances from a point on the axis to each of the zeros, divided by the product of the distances to the poles. ... A linear system is stable if it has no poles in the Right Half-Plane . ...

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• Summary of discrete linear systems
• Summary of noise in linear systems
• Summary of 1-D non linear systems

#!/bin/sh /usr/local/bin/modhead $1 CRPIX1 1 /usr/local/bin/modhead $1 CRPIX2 1 /usr/local/bin/modhead $1 CRVAL1 0. /usr/local/bin/modhead $1 CRVAL2 0. /usr/local/bin/modhead $1 CDELT1 1. /usr/local/bin/modhead $1 CDELT2 1. /usr/local/bin/modhead $1 CTYPE1 'LINEAR' /usr/local/bin/modhead $1 CTYPE2 'LINEAR' exit

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• Panoramas from Shared Skies Observatories

... We can help students grasp the significance of Hubble's extremely keen eye, and learn a bit about angles and math in the process, with the following in-class activity. ... Looking through binoculars or telescopes allows us to magnify a small section of the sky. To measure sizes or distances in that small section, astronomers divide a degree into 60 smaller pieces called arcminutes, and further subdivide minutes into 60 smaller sections called arcseconds. ... 30 feet = . ... 36 seconds . ...

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• ASP's 2003 Annual Meeting

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Winer Observatory gratefully acknowledges the generous support of those listed below. ... We thank our donors and hold them up as models of how corporations in America can behave responsibly in the communities in which they do business. ... Telescopes, parts, and accessories . ... 100,000 . ... Hughes Missile Systems . ... Miscellaneous electronics . ... Terra Universal, Inc. ... EFI Electronics Corp. ... 2013 Winer Observatory. ...

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... НОВОСТИ CASTROL ! ... ных и складских помещений, использущие в качестве топлива . ... По всем вопросам очистки инжекторов и форсунок бензиновых и дизельных двигателей просим обращаться на АВТОТЕХЦЕНТР AD REM. ... Обрыв ремня ГРМ двигателя своего автомобиля Вы запомните на всю жизнь! ... АвтоТехцентр AD REM srl является авторизированным дистрибьютором в Молдове Продукции компании GАТЕS - которая сегодня является мировым лидером в производстве приводных ремней. ... 2006 AD REM SRL . ...

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... Mirror hard points, Galil channels A-D, are at nominal positions for observations . Lateral link drives, Galil channels E & F, are at nominal positions for observations . Install telescope-wind baffle turnbuckles . ... Remove wind baffle (see wind baffle rem. proc.) . ... Remove remaining 2 pair of wind baffle counterweights . ... Move wind baffle + telescope to zenith "bird bath", install pin, apply telescope altitude brake, depress emergency stop button and disable wind baffle drive . ...

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• http://www.apo.nmsu.edu/arc35m/Instruments/ARCTIC/Development/ImagerPDR/GammaVacSPCe_specsheet.pdf
• Measurements of 3.5-m Secondary Mirror Motions
• Procedure to Install 2.5m Primary Mirror

... What's New? Bad Astronomy . ... News . ... Bitesize Astronomy . ... Comets are chunks of ice, gravel, dust and rock stuck together in a lumpy ball. ... They said The Linear comet is believed to have been launched on its 100-year voyage around the sun from a huge cloud of similar objects that surrounds the solar system more than a trillion miles away. ... More info about 1999 S4 LINEAR and other comets can be found at Gary Kronk's wonderful Comets and Meteor Showers website . ... 2008 Phil Plait. ...

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Apollo 15 . ... 1971) --- An excellent view of Mount Hadley, fully lighted, showing abundant linear features, as photographed during the Apollo 15 lunar surface extravehicular activity (EVA). ... While astronauts David R. Scott, commander, and James B. Irwin, lunar module pilot, descended in the Apollo 15 Lunar Module (LM) "Falcon" to explore the Hadley-Apennine area of the moon, astronaut Alfred M. Worden, command module pilot, remained with the Command and Service Module (CSM) in lunar orbit. ...

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... Н.С. КОМАРОВ- ведущий научный сотрудник Одесской астрономической обсерватории , профессор, доктор физико-математических наук . ... С.М. АНДРИЕВСКИЙ- ст. научный сотрудник Одесской астрономической обсерватории, кандидат физ-мат наук . ... Ю.М. ГОРБАНЕВ- научный сотрудник Одесской астрономической обсерватории , кандидат физико-математических наук. ... Т.В. МИШЕНИНА- ст. научный сотрудник Одесской астрономической обсерватории , кандидат физико-математических наук . ...

194. Amateur Telescope Makers of Boston

195. http://lnfm1.sai.msu.ru/SETI/koi/articles/EvolAndSETI.pdf