... The absolute flux calibration of NICMOS will be calculated from observations of standard stars with known flux distributions F( ). ... In order to expand the set of IR standard stars in the appropriate flux range for NICMOS, M. Rieke, R. Thompson, and collaborators at the University of Arizona are making photometric observations of solar-analog stars, which will be used to normalize the solar spectrum to the observed IR magnitudes. ... Relative flux references accurate to 1.5% for standard...

Next: Reduction procedure Up: Extinction and transformation Previous: Strategy . Standard stars can be included in the extinction solution, if one is careful. The problem is that there are usually appreciable ``conformity errors'' due to mismatch between the instrumental and the standard passbands [ 16 ]. ... Thus, it is wrong to assume that the transformation between the instrumental system and the standard system is exact, even if there were no measurement error in either system [ 1 ]. ...

Next: THE SOURCE LIST Up: Spectral-Line Observing at AO Previous: THE RADAR BLANKER . ... You also need to decide how you want this correction to be applied - to the center of each correlator board or to the four boards as a whole (thereby preserving the topocentric frequency offset between the boards). Typically, this choice depends on whether each board is centered on a known spectral line, or if you are doing a search in velocity space for an object. ...

... These are a sub-set of the well-known Hershey fonts @footnote #{created by Dr. A. V. Hershey at the U. S. National Bureau of Standards and illustrated in National Bureau of Standards publication NBS SP-24. ... We have to tell you all this for copyright reasons, but as distributed the fonts are in the public domain.} and the available characters are listed in the following table, which were generated from within SM by saying load fonts fonts . ... Comments go from the character # to end of line. ...

... Standard Commands . ... TwistedActor.Actor is core code for writing an actor: an instrument control computer (ICC) or hub-based script that does something useful. This manual describes the standard commands and keywords that any actor based on TwistedActor.Actor will support. All actors based on TwistedActor typically support the following standard commands (plus additional device-specific commands documented in that actor's manual). ... Connect one or more devices (if not already connected). ...

. To redirect the standard input for a command use the < (less than) character followed by the name of the input file. For example: mail tony < memo . This redirects the standard input to the mail command so that it comes from the file memo . The effect of this is to mail the contents of this file to the user tony .

... They are known: active quantum frequency standards on the ammonia molecules beams (molecular generator) on the hydrogen generator (hydrogen generator) passive quantum frequency standards on the Cs atoms’ beam (cerium atomic beam tube); active and passive quantum frequency standards with an optical pumping of Cs or Rb steams. The stability of atomic beam quantum frequency standard achieves 10^ - 14. ...

Next: Buffer Manipulation Up: Programming in C Previous: Compiler Options . Listed below are nearly all the ANSI C standard library functions. The header file where related definitions are stored are given. These may vary on some systems so check local reference manuals. ... More info can be obtained from online man calls or reference manuals. Buffer Manipulation . Character Classification and Conversion . ... File Manipulation . ... Wed Sep 14 10:06:31 BST 1994 ...

... The first step to improve the FORS calibration is therefore to obtain data to allow a computation of the illumination correction across the field. ... Another limitation on the calibration accuracy has been the brightness of the Landolt standards which have forced the use of extremely short exposures introducing small but non-negligible shutter-time errors and also resulting in a very small number of useful standards per frame. ...

... Standard: IEEE 1196, "Nubus-A simple 32-bit backplane bus". ... UNKNOWN CONNECTOR at the card. UNKNOWN CONNECTOR at the computer. ... 12 VDC . ... Address/Data 1 . ... GND . Ground . ... Power to slot; 2 amps per slot maximum continuous. ... Slot Parity Valid; asserted if card provides parity. ... Address/Data bits 31 to 0. ... Geographical address 3 to 0; hard-coded to slot. ... Apple Tech Info Library 2194: Macintosh II NuBus Slots, Pinout at Apple TIL homepage . ...

... John Backus in New Mexico, 1976 . ... Other manufacturers came later with Fortran compilers for their machines and in 1962 IBM introduced the extended Fortran IV, which was the base for the 1966 agreed American standard ANSI X3.9 - 1966. ... An HTML version of the Fortran 77 Standard is now available! ... The purpose of the work on a new standard version was to make Fortran usable and efficient language for scientific and technical computations during the nineties. ... Parallel execution . ...

... The material in "From Stargazers to Starships" meets several important requirements of the national standards. Pages cited below are from National Science Education Standards National Academy Press, Washington 1995. ... For example: the sections on astronomy not only describe calendars and sundials (including their construction), but also the astronomy of the ancient Greeks, including two different ways in which ancient Greeks estimated the distance to the Moon. ...

OptInt PmWiki : Pm Wiki / Special Characters . When creating pages it's common to use commercial trademarks, copyright, umlaut, and other non-keyboard symbols. therefore it's important that you have the means to input these special characters. PmWiki supports the HTML special character listings by the w3c. W3C Page of Special Character codes ISO standard. ... 169; | ... Find an instance of a special character in an online document; copy and paste the character to your wiki page: © . ...

... The New 1997 IEEE Standards Products Catalog features the complete listing of standards publica-tions and services IEEE Standards offers, along with the information you need to place your order. ... Books and Other Products on Standards - contains a detailed listing of informative print and electronic publications relevant to standards and their implementation in areas of electrical engineering, electronics and computer technology. ... IEEE Standards Products Listing 22 . ... Power Electronics 41 . ...

... Sven Standard 307M USB, Черный USB, Черный.. ... Тип: Рюкзак городской . ... Благодаря вместительности и прочным качественным материалам, из которых изготовлен рюкзак, это отличный, надежный вариант на каждый день.Характеристики: Большое основное отделение. ... Ralph Lauren Black - это линия культового бренда Ralph Lauren, отличающаяся продуманным дизайном, использованием высококачественных материалов и разнообразием цветов и оттенков. ...

... Posts tagged ?standard candle? ... In addition to Bayesian methodologies, like this week?s astro-ph, studies on characterizing empirical spatial distributions of voids and galaxies frequently appear, which I believe can be enriched further with the ideas from stochastic geometry and spatial statistics. Click for what was appeared in arXiv this week. ... 1 Comment . ... If you find any problems of viewing the slog, please notify me. ... Entries RSS . ... Entries (RSS) and Comments (RSS) . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

Общая Астрономическая Конференция > Товары для астрономов > Барахолка . продам монтировку для бинокля Parallelogram STANDARD II . ... Поиск . ... Кактус . ... Монтировка под прямые астрономические бинокли PARALLELOGRAM STANDARD II . ... монтировка для бинокля Parallelogram Standard 2 +orion 25x100 . ... продам монтировку параллелограмм для астрономического бинокля . ... Продам монтировку NexStar SLT GOTO - ПРОДАННО . ... Продам монтировку CG4(полный аналог EQ3) . ...

... Бленда PENTAX Q MH-RA 40.5mm (для STANDARD PRIME 8.5 мм) . Компактная металлическая резьбовыя бленда для объектива Pentax 01 Standard Prime . ... Круглая металлическая бленда, созданная специально для использования с объективом Pentax 01 Standard Prime. ... Компактные цифровые фотоаппараты . Зеркальные цифровые фотоаппараты PENTAX . ... Бинокли PENTAX и зрительные трубы PENTAX . ... Каталог MEADE по классам . ... Copyright PENTAR ї2004-2016. (бинокли, цифровые фотоаппараты, телескопы) . ...

The NTP standard specifies an extension which provides cryptographic authentication of received NTP packets. ... The specification allows any one of possibly 4 billion keys, numbered with 32-bit key identifiers, to be used to authenticate an association. ... In the case of MD5, the keys are 64 bits (8 bytes). xntpd reads its keys from a file specified using the -k command line option or the keys statement in the configuration file. ... A zero key in NTP format would be specified as 8080808080808080 . ...