... The initial descriptions of the FITS format provided a simplified method for describing the physical coordinate values of the image pixels, but deliberately did not specify any of the detailed conventions required to convey the complexities of actual image projections. ... They were CRPIX n for the reference pixel location on pixel axis n , CRVAL n for the coordinate value at that pixel, CDELT n for the increment at that pixel in the coordinate value, and CTYPE n for the type of coordinate. ...

This module provides for the generation of Expires HTTP headers according to user-specified criteria. ... This module controls the setting of the Expires HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... ExpiresByType . ExpiresDefault . The ExpiresDefault and ExpiresByType directives can also be defined in a more readable syntax of the form: . ... Module: mod_expires . ...

Stellarium 0.12.3 . ... FileљStructure . ... SphericalRegion . DrawParams . ... SphericalRegion::DrawParams Struct Reference . Parameters specifying how to draw a SphericalRegion . More... #include < StelSphereGeometry.hpp > . DrawParams (class StelProjector *projector) . Construct DrawParams with default parameters and specified projector. ... Do not subdivide the region to follow projection distortions. ... class StelProjector * SphericalRegion::DrawParams::projector_ . ...

Symbolic circuit-matrix processor and evaluator . ... This software is reliable over the range of benchmark circuit complexity (both *.CIR and *.MAT file). ... SYMBOL is a symbolic-algebra package which in contrast to REDUCE, MACSYMA, MAPLE, MATHEMATICA, MathLAB, MathCAD and other known multi-purpose systems is especially intended for analysis of any lumped, linear, time-invariant circuit. ... pure ASCII text . ... CIRSYM - SYMbolic CIRcuit processor used to format ASCII text file *.out for CALCSYM. ...

OFICCIAL PRESS RELEASE . ... At S.P. Korolev Rocket and Space Corporation Energia the regular session of the Board of Chief Designers on the Russian Segment of the International Space Station (ISS) was held under the chairmanship of N.N. Sevastianov, President, General Designer of RSC Energia. ... Charge RSC Energia (N.N. Sevastianov) with submitting this decision to the Federal Space Agency and higher-level state structures. ... Official WEB-site of S.P.Korolev RSC Energia . ...

In Actor Prolog a resident is a special mechanism that helps processes to inspect state of other processes. A resident observes the state of a specified (target) process and if the state of the process changes (for instance, after message handling) it proves a specified predicate of the process. ... Work of the resident. ... Any change of the list of target processes or arguments of resident function results in activation of the resident and repeated collection of information in the target worlds. ...

... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...

The Face on Mars . ... The Raw Images . Table 1: List of Viking Orbiter Images of the "Face on Mars" . ... Processing the Face Images . Table 2: Dimensions of Mercator Projected Images of "The Face on Mars" . Map Projected Images . ... Processing the "Face on Mars" Images . ... This page will provide interested persons with both the raw Viking images, transformed to GIF format, and a brief tutorial (with examples) of image processing techniques applied to create "better looking" images. ...

Astronomy Picture of the Day . ... Credit: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA Explanation: The Sun rotates on its axis about once every 27 days. ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... Publications with keywords: Sun - solar rotation - sunspot . Publications with words: Sun - solar rotation - sunspot . ...

Computer Ephemeris. Precession/nutation matrix. Explanations. Each row contains for the date specified at 0 h of Time Dynamical Terrestrial nine elements of equatorial precession/nutation matrix minus unity matrix multiplied on 10 8 . This matrix is to be used for coordinate transformation of equatorial coordinates between mean equatror and equinox J2000.0 and real equator and equinox of date. ... This is the matrix for transformation from J2000.0 to date. ...

In order to calculate the line profile of a given absorption line for atomic species Z with a wavelength LAMBDA (in Angstroms) and a microturbulent velocity VT (in km/s). ... mode . ... 1) The input model may contain more than one model (i.e. it may be an entire grid of models). Spectrum will cycle through this grid NMOD times, omitting NSKIP-1 models from the . ... However, the input data following MODE must be repeated NMOD times in order to obtain equivalent results for each model in the grid. ...

... part 2 | ... Part 1 . The new concept of formation and development of the Solar system. ... Thus, the initial pulse of the rotation of a protosolar cloud of the solar system was determined as a result of the diversion of a part of the moment of the rotational pulse of the Galaxy. ... Besides this new approach to the pre-solar system as a system of the destroyed vortex structure, we can understand now a number of other peculiarities of the Solar system's structure. ...

... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...

... The default value is pointing to the parent directory. ... Link to parent directory $BBC_MAINSITE = ""; => Show no link $BBC_SHOW_CONFIG BBClone defaults to revealing the stats' settings. ... BBC_LANGUAGE = "en"; $BBC_MAXTIME This variable defines the length of an unique visit in seconds. ... BBC_NO_HITS = ""; => Show hits in time stats $BBC_NO_HITS = 1; => Show unique visits in time stats $BBC_IGNORE_IP This option can be used to exclude particular IP addresses or address ranges from counting. ...

After filling in and submitting this form it will be processed and sent to WDC-B data manager responsible for the data of your interest. You will receive requested data by conventional or electronic mail according to your preference. ... E-mail address: . Regular postal address: . ... Low Atmosphere . ... Radiation Belts of Earth . International Geomagnetic Referece Field Model (IGRF) . ... Press button below to submit your request to WDC-B data manager or reset your selections. ...

asncombine -- Process and combine images in one or two NICMOS associations asncombine association . ... set to yes to include error planes in co-added images error. background . ... This is useful to use different background subtractions for different images. fheader . set to yes in order to multiply the background by the value of keyword "factor" in the image header. ... Set to yes to use quadrants statistics save in the image header from previous runs of asncombine. regquad1 . ...

Pulkovo NEO Page . ... EPOS Software Package . ... EPOS ( E phemeris P rogram for O bjects of the S olar system) is the Windows PC application for study and ephemeris support of observations of the Solar system objects. ... It controls the part of common data and transfers the control to one of the programs that solve the restricted set of tasks. ... So with the EPOS software package one can calculate the accurate ephemerides for many objects and get the quick illustration of their motion as well. ...

grdlandmask - Create "wet-dry" mask grdfile from shoreline data base. grdlandmask -G mask _ grd _ file ] -I xinc [ m|c ][/ yinc [ m|c ]] -R west / east / south / north [ r ] [ -A min _ area [/ min _ level / max _ level ] ] [ -D resolution ] [ -F ] [ -N maskvalues [ o ] ] [ -V ] grdlandmask reads the selected shoreline database and uses that information to decide which nodes in the specified grid are over land or over water. ... The resolution drops off by ~80% between data sets. Default is l ]. ...

home support . ... ASP Endowed Funds . Annual Report . ... The Morrison Fund is used to support the lectures at the ASP Annual Meeting. ... Income from the fund is used for the development and distribution of astronomy education resource materials for teachers. ... Upon the deaths of Eric and Maria Muhlmann the fund was converted by the ASP Board to endow an annual award recognizing important contributions in the development of astronomical instrumentation, software, or supporting infrastructure. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Some 13.7 billion years ago, a mere millionth of a second after the Big Bang, the first hydrogen and helium nuclei condensed out of a hot, dense soup of quarks and gluons. ... In the very last few kilometres some of the light was scattered by a myriad of water droplets (containing hydrogen nuclei which had existed almost since the Big Bang) slowly descending through the air following a rainshower. ...