A. A. Sukhanov . Modern Methods for Space Flight Dynamics and Their Applications . ... The following effective mathematical methods are suggested for solution of different space flight dynamics problems: . 1) A simple method for the calculation of the state transition matrices of the first and second order. The method allows calculation of the matrices for any orbit types. ... 3) A double planet swingby optimization. ... Applications of the methods are given. ...

... Files in red?history) . ... Auroral Currents . 25H. Birkeland Currents . ... As noted earlier Kristian Birkeland, reporting in 1903 on his expeditions to the auroral zone, proposed that magnetic disturbances accompanying the aurora were caused by large electric currents flowing down the length of auroral formations. ... In later years these currents became known as the auroral electrojets , and considerable debate ranged over their cause and the way their circuit might be completed. ...

... Telescope . ... Low and medium resolution imaging spectrometer TFOSC (TUBITAK Faint Object Spectrograph and Camera) was build at Copenhagen University Observatory, and is similar in its layout to DFOSC at Danish 1.54-m, ALFOSC at NOT and to other instruments of this serie. ... CCD camera --- 2K x 2K Firechild, 30.72 x 30.72 mm. The field of view --- 13.3' x 13.3'. Filters --- Bessel (UBVRI), SDSS (u'g'r'i'z'), narrow-band filters. ... crossdispersion . ... 12.0 . ...

The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ... Information on the NTP architecture, protocol and algorithms can be found in the following articles and reports, which are available online . Mills, D.L. Internet time synchronization: the Network Time Protocol. ... Mills, D.L. Network Time Protocol (Version 3) specification, implementation and analysis. ...

... The choice of the spectrograph design (Fig.2) is determined by the quantity R, the overall dimensions of the PF cage and the restrictions on the rigidity of the structure of the device. ... As the camera's objective a fast 4-lens aplanat is used having a focal distance F cam =140 mm and a relative aperture of 1:1.8, the resolution at the centre is no less than 80 gr/mm, that over the field at a distance of 3 mm from the edge along the frame ( ) diagonal is 35 gr/mm. ...

... Telescopes . ... The spectrograph is installed in the Nasmyth focus of the BTA telescope, the equivalent focal length is 186 m (F/31). ... The preslit device unit is marked by number 3. ... Fig. ... slit unit of the MSS, 4.1 ? ... The spectrograph slit unit consists of a mirror that redirects the light beam from the Z axis and from the calibration path at an angle of 65њ to the axis of the telescope focus into the slit, the order separation filter, the block of the slit and the shutter (Item 4 in...

... Recent Topics . ... MAO main . ... The third-order space-by-time relation . ... Тема: The third-order space-by-time relation . ... The mass m experiences a gravity force toward the sun and . ... will experience the Coriolis force or Coriolis acceleration. ... differentiated space-by-time twice and discovered equation2. ... time differentiation of space-by-time. ... to be described by differentiated forces. ... third-order space-by-time relation. ... understand the third-order space-by-time relation....

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

This page is devoted to information on Supernova 1998ey in NGC 7080 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. ... Ron Arbour discovery image 12/5.816/98 . ... Ron Arbour image 12/10.791/98 UT . ... cf. vsnet-chat 1503 . ... The new object, SN 1998ey, locates at R.A. = 21h30m00s.56, Decl. = +26o43'24".2 (2000.0), which is about 18" west and 20" north from the nucleus of the host SBb galaxy NGC 7080. ...

The basic characteristics of the instrument are set by the aperture, focal length and resolution of the image forming lens, the dispersion of the spectrometer, and the sensitivity of the detector. ... The lens is internally focused, and maintains acceptable focus (2 pixels in the detector plane) over a typical spectral coverage of one grating setting. ... along the spatial dimension of a 25mm square detector in the final spectral image plane the 400mm lens is 3.2њ. ... Diffraction grating . ...

... Content Model: Optional list header (LH), followed by one or more list items (LI) . An ordered list typically is a numbered list of items. ... The numbering style is left to associated style sheets, e.g. whether nested lists contribute to a compound item number, e.g. "3.1.5", or whether numbers are rendered as arabic, upper or lower case roman numerals or using the numbering scheme appropriate to the language context. ... CLASS . ... The CLEAR attribute allows you to move down unconditionally: . ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... Bojan Nikolic web pages (r. 329) . ... The order in which libraries to link to are passed to the linker is important . ... Many libraries use the GNU Autoconf/Automake build toolchain. ... Run the ./configure script, which looks for the various programs and libraries that the package needs . ... The simplest way is to run ./configure and make note of any complaints about missing programs or libraries that it reports. ... Some notes on the GNU toolchain . ... Passing options to configure . ...

REPORT ON THE SIMONS­IUM FELLOWSHIP 2013 AND DYNASTY FOUNDATION ILYA VYUGIN Results of the 2013 year On solvability of linear differential systems. ... On the linear indep endence of the system of functions. Consider the scalar Fuchsian linear diferential equation u(n) + b1 (z )u( n-1) + . ... The system consists of products of the functions xt and powers of fundumental solutions yi i (x) of some linear differential equation. ... Linear differential equations: monodromy, singular points. ...

... Цвет: CAMO . ... Модель: NEW ORDER CARGO . Сезон: SS15 . Размер US: 33 . ... Платье прилегающего силуэта с рельефами и резами на передней и задней частях изделия. ... Цвет: черный, серый, синий Длина рукава - 30 см Рост девушки-фотомодели - 180 см Длина изделия: 48 размер - 98 + 2 см 50 размер - 98 + 2 см 52 размер - 98 + 2 см 54 размер - 100 + 2 см 56 размер - 100 + 2 см . ... По материалу: Хлопок,Трикотаж . ... По форме: Платье - футляр . ... Материал: 50% хлопок 45% полиэстер 5% эластан . ...

... Home The Club Online Store . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... This MonthтАЩs Sky тАУ April 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... The official Amateur Astronomers Association of New York Store is here! . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Astronomy Discussion Forums . ... Observation Rept 10/15/03 . ... Post Message | ... I have recently replaced the supplied 6 x 26 finder scope with an 8 x 50 I ordered from Hands On Optics. ... The galaxy was an easy find with the larger finder scope. Almost directly over head Andromeda was a great sight. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

ATMoB Awards Program - Messier Marathon Worksheet Observer: Date: Instrument(s) Used: Location: Messier Observing Catalog/Worksheet Observing Order 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Messier Number M 77 M 74 M 33 M 31 M 32 M110 M 52 M103 M 76 M 34 M 45 M 79 M 42 M 43 M 78 M1 M 35 M 37 M 36 M 38 M 41 M 93 M 47 M 46 M 50 ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado€о Solar . ... Spotting Scopes . ...