... The file names' construction . The flight (m) stage's file set . ... the orbital data used for the flight operation monthly (m) long-term planning, . ... The orbital calculations are based on the initial orbital data determined by KIAM RAN using the orbital radio measurements treatment.The determined initial orbital data are presented as a state vector (satellite position and velocity) in the J2000 reference. ... Accept the file with extension '.bgr', where the Moscow time (MT=UT+3h) is used. ...

... Tonight's Sky . ... Astronomy for Kids . ... Do orbital motions between galaxies affect calculations of the cosmological redshift? ... RELATED TOPICS: COSMOLOGICAL REDSHIFT . ... The observed redshift, or wavelength shift due to motion, of a galaxy s characteristic light spectrum is a combination of the galaxy s motion with respect to its neighbors ( peculiar velocity ) and the expansion of the universe ( cosmological redshift ). ... Get instant access to subscriber content on Astronomy.com! ...

... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

... AstroCC is a coordinate conversion utility for astronomy. It accepts an object designation or the coordinates of an object and calculates coordinates in alternative systems, and at different dates, times, and locations. It also provides lunar and bright planet coordinates to aid in planning observations. ... BJD values may also be retrieved from http://astroutils.astronomy.ohio-state.edu/time/utc2bjd.html which is based on Eastman et al. ... Coordinate data are obtained from SIMBAD. ...

... User Guide ] Task: hermes Purpose: Make model images for Mercury. ... First calculates a Hermographic brightness temperature map, then uses interpolation and coordinate rotations to find the corresponding map in geocentric RA and DEC offsets from the sub-earth point. ... MIR/cat/hermes.in is a sample input file, and can be copied to the user's own directory. ... Key: in Parameter file. Default is "hermes.in". Key: imsize Image size. ... Key: log Output log file. Default is "hermes.log". ...

UNIVERSAL COORDINATES TRANSFORMER . EPOCH1: . EQUATORIAL COORDINATES FOR EPOCH1 . ... rad . ... EPOCH2: . EQUATORIAL COORDINATES FOR EPOCH2: . ... ECLIPTIC COORDINATES FOR EPOCH1 . ... ECLIPTIC COORDINATES FOR EPOCH2 . ... GALACTIC COORDINATES . ... Type initial epoch (epoch1), final epoch (epoch2) and needed coodinates (equatorial a 1 , d 1 for epoch1, ecliptic l 1 , b 1 for epoch1 or galactic l,b) and press corresponding "SUBMIT" (if EPOCH2=EPOCH1, EPOCH2=EPOCH1+10). ...

... Note that the size of a region cannot be specified in celestial coordinates (e.g., arcminutes) for this task (1 pixel = 0.5 for the ROSAT HRI). xs srcint source qpoe file ( ): xdata$rh110267.qp source region descriptor ( ): c 2326 4406 120 background qpoe file ( ): bkgd region descriptor ( ): a 2326 4406 150 200 output root name (_ccr.tab): (arlac) --- Creating aspect histogram table from qpoe --- --- Computing vignetting ...

Russian Version [ MS-Win ] . ... Satellite data ] . SMIS ] . The application is designed to perform high-accuracy geographic referencing and calculate geographic coordinates of satellite data using orbital data. ... The program performs conversion of satellite images into conic or equidistant projection and overlays the coordinate grid over it. ... When necessary the program allows for setting control points for correction of the reference. Shareware version (APT NOAA data processing) . ...

function [l,b, mul , mub ]=equ2gal(ra,de, mura , mude ); %% % % Calculating galactic coordinates and % proper motion components: % Transformation: Equatorial ---- Galactic % Epoch and equinix J2000 % % Function call: [l,b, mul , mub ]=equ2gal(ra,de, mura , mude ) % % % Input: ra, de - eequatorial coordinates (in degrees) % mura , mude - proper motion components % in the equatorial ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The algorithm and appropriate program for decametric radiosignal propagation conditions prediction for paths from 500 to 9000 km have been developed at ISTP SB on the basis of normal wave method (AltyntsevaB.I,Iliyin N.V., Kurkin V.I. and others //Decameters channel simulation on the base of normal wave method . ... Solar activity indices are chosen automatically from the prediction date from the database . ...

... The SDSS 2.5-m primary mirror is supported in a manner similar to the Apache Point Observatory 3.5-m telescope primary. ... The axial support is provided by 48 air pistons. The pistons have the same diameter thereby applying equal forces with the same air pressure. ... Each group supports a 120њ sector of the mirror. ... Figure 1: CAD drawing showing the 2.5-m primary mirror and the locations of actuators (green circles) These actuators apply forces (10*cos2 N) to correct astigmatism. ...

Taking into account the result by Watanabe P=2.5 days in outburst, I reconstruct old set of photographic observations being partly lost, and add some new observations. ... The periodogram calculated with the method by Lafler and Kinman is shown. ... The last periodogram indicates peaks corresponding following possible periods with the double-wave light curve: 0.4236, 0.4650, 0.5379, 0.6064, 0.7365, 0.871, 1.168, 1.5437, 2.8173, and 6.89 days. ...

... On-line Data . ... The program enables to find out the exact present Earth coordinates of the international space station and "Shuttle". ... J-Track - this program is similar to the previous one, however it knows how to display images and orbits of space vehicles. ... NASA SkyWatch - a program for those, who are fond of watching artificial space objects through the telescope, field - glass or with the unaided eye. ... Info: Industry news On-line Data Company ATLAS news Events We in press Contact . ...

The following figures show the behaviour of the efficiency factors Q ext , Q sca , Q abs as well as albedo and asymmetry parameter g for porous particles. ... These optical characteristics are compared with results of Lorenz-Mie calculations for corresponding n -layered spheres. ... factors . Qext(x) . Qsca(x) . ... Qabs (x) . ... albedo (x) . ... Henning, Modelling the optical properties of composite and porous interstellar grains, Astronomy and Astrophysics , 429 , 371-381, 2005. ...

... The Radon transform (also known as the Hough transform) is formulated as a family of line integrals through a two-dimensional function. ... The Radon transform provides us with a simple means of computing the FF plane of the autochirplet transform, by using the Wigner distribution, and arriving at a transform space that tells us basically the same information as the chirplet FF-plane, except that we benefit from the greater resolution of the Wigner distribution. ...

... DIAGNOSTICS OF IONOSPHERIC IRREGULARITY SPECTRUM USING MEASUREMENTS OF RADIO WAVE ANOMALOUS ATTENUATION UNDER VERTICAL SOUNDING . ... The selected experimental data are characterized by a high average level of attenuation of a signal of vertical sounding (10 dB and above), which cannot be caused by collisional absorption of radio waves (practically absent in a dark time of day) and, hence, being a consequence of scattering on random irregularities. ... ATTENUATION OF A VERTICAL SOUNDING SIGNAL . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... When we designed the exhibit, we wanted the zodiacal constellations to be indicated. However, whereas the Orrery is laid out in the ecliptic plane, constellations are defined in B1875 equatorial coordinates. Therefore for each adjacent pair of zodiacal constellations, we calculated the point at which the J2000 ecliptic intersects the boundary between the two constellations. ... numbers . plot . image . ...

Subject of Geodesy. ... The Main Problems of Geodesy. ... The Main Parameters of the Terrestrial Ellipsoid, Ratios between Them. ... The Main Equations of Geodesic Line. ... Geodesic Station Coordinates Calculation on the Ellipsoid Surface. Primal and Inverse Geodesical Problems, Methods of Their Solution. ... Geodesical Coordinats Determination by Gauss-Kruger Coordinates. ... Methods of Synchronous Observations and Orbital Methods of Artificial Satellite Use for Coordinates Determination. ...

... Field size . Object name . ... Map size . ... Field size: the approximate size of the map in the Y direction. ... Galaxies: . ... Galaxies, which size exceeds some value depending on the field and map sizes, are displayed with their real positional angles and sizes by 25m isophote. ... In the "tools" fields there are links to the several famous AVO (Astrophysical Virtual Observatory) resources: NED and Simbad databases and DSS2 (Palomar Digitized Sky Survey) images of the corresponding sky area. ...

... Description . Catalog . ... In the Catalog, we publish equatorial (ЮБ 2000 , ЮД 2000 ) and galactic (l,b) coordinates of cluster centers derived as the position of overdensity in 2MASS catalog (Koposov et al. ... Distances, color-excesses and ages are the mean-square values calculated using all available evaluations from different color-magnitude diagrams. ... There are individual pages for every cluster where all available plots and parameters are published. ... 2002). ...