... Views of Martian Clouds . ... Although not as pronounced as on Earth , clouds are common features on Mars. The Martian atmosphere has only a trace of water vapor; however, the temperature and pressure is such that the atmosphere is usually close to saturation and produces clouds. Even from Earth based telescopes, clouds have been observed by transient brightening on the surface of Mars. ... Lee waves . ... Wave clouds . ... Image Credit: Calvin J. Hamilton) . Lee Wave . ... Wave Clouds . ...

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... arfgen (arfgen-1.75.6) [?? ... arfgen crossregionarf=yes spectrumset=spec_output.ds crossreg_spectrumset=spec_input.ds detmaptype=dataset detmaparray=image200.ds . This command returns the effective area in a region of the detector (defined in spec_output.ds) coming from the PSF overflow of flux from the sky region defined in spec_input.ds. The detmaparray, image200.ds, should be an image which includes both detector regions with a pixel size which is small compared to the size of the regions. ...

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• Tips and Grouping of Region Functions
• Defining the spatial area with a region file

This diagram illustrates two block boxes, one above the other, with rectangular clipping regions of different dimensions. ... Both axes depict increments of 5px. The clipping region of the first P box lies entirely within it, offset 5px from the top and left edges of the P box, and 10px from the right and bottom edges. ... The clipping region of the second P box resembles that of the first in style and position, except that the right edge is 5px to the right of the P box's right edge. ...

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• Dynamic HTML in Communicator

SAOtng can associate names with region markers in order to aid users in remembering the significance of the region. ... By default, marker regions that you create in SAOtng are defined to be either "source" regions or "background" regions and are colored green and red, respectively. ... This type name is controlled by the "Set Type (and Color)" option in the marker menu (activated using the right mouse button within a region). ... Colors can be associated with names for regions. ...

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• Spatial Region Boundaries
• Fixing and Freeing Region Markers
• Spatial Region Coordinates

... This example shows the Interference removal for the Baker Electron Density data (Qihou Zhou). ... The Arecibo ISR can measure velocities to an accuracy within 1 m/s for an integration time of 30 second in the D-region. ... The Arecibo ISR can measure the neutral winds and temperature in the E-region. ... We are working on to get the ion neutral collision frequency as well. ... The other parameters that we regularly measure include electron temperature, vector ion drift, light ion contents etc. ...

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• Planetary Radar: Arecibo Radar Images of Planets

... WCExtension (const ImageRegion &region, const WCBox &extendBox) . Construct the extension of an image region using the axes and blc,trc given in the extendBox. ... doToLCRegion (const CoordinateSystem &cSys, const IPosition &shape, const IPosition &pixelAxesMap, const IPosition &outOrder) const . ... The axes in region and box have to be disjoint. casa::WCExtension::WCExtension . ... For the stretch axes both box and region axes are returned. static WCExtension * casa::WCExtension::fromRecord . ...

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• casacore: casa::WCUnion Class Reference
• casacore: casa::WCDifference Class Reference
• casacore: casa::ImageRegion Class Reference

We present spatially resolved Spitzer Space Telescope imaging of the supergiant shell region of the M81 group dwarf galaxy IC 2574 obtained as part of the Spitzer Infrared Nearby Galaxies Survey. This region harbors one of the best nearby examples of a kinematically distinct H I shell, with an associated remnant stellar cluster; the shell is initiating sequential star formation as it interacts with the surrounding interstellar medium. ...

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• Introduction to Patterns
• WFPC2 Bright Star Avoidance Regions
• Example

... Because of the Sun 's UV radiation, Earth 's upper atmosphere is partly (0.1% or less) ionized plasma at altitudes of 70-1500 km. ... Around the plasma density maximum (F-layer, see below) a so-called ionospheric waveguide is formed for magnetosonic waves . ... It is interesting to note that this works also the other way round and, for example, the auroral kilometric radiation created by the precipitating particles high above the ionosphere does not reach the ground because of the ionospheric E...

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• Remote Sensing of Tropical Regions
• Dayside aurora [Oulu]
• Frictional heating [Oulu]

... 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. ...

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• Multichannel Flare Spectrograph Archive 1997

FEATURES OF THE HYDROGEN DISTRIBUTION AROUND LUNAR CRATERS PROCLUS AND KEPLER. ... In result of analysis of the data Lawrence and Feldman constructed the hydrogen distribution on the lunar surface [1]. ... However, the authors shown, that EN flux data features may be explained by other element abundance in the lunar soils, namely: Si, Ca, Gadolinium (Gd), Samarium (Sm) and Fe. ... Using of the Feldman's interpretation of the Lunar Prospector data [8], we constructed hydrogen distribution map (Fig.1). ...

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• http://selena.sai.msu.ru/Chik/Publications/Aitken/MS015.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms34/MS065.pdf
• http://selena.sai.msu.ru/Kozl/Publications/ms40/50_Kozlova_Shevchenko.pdf

... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...

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• An IRAF-Independent Interface for Spatial-Region Descriptors
• Classification of Objects in the Guide Star Catalog
• ADASS 2002 Conference Proceedings

. This enhanced false-color image of Ida with its small satellite, Dactyl (right), is a vivid example of the effect of space weathering on asteroids. Blue regions on the asteroid tend to be associated with fresh, young craters where subsurface material recently has been exposed to space. Red regions on the surface correspond to old craters and flat surfaces that have not been disturbed in a very long time. NASA / JPL

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BAA52EA58-0501-4106-85E3-F6E8DF8721D4%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BB04A97D7-1CEC-400A-9F2E-DE543AE4674D%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B2450580F-9A95-4EBB-9D4C-9C06B77405C1%7D

... See also ELAIS survey with VLA C.Cesarsky, L.Danese, A.Franceschini, . ... astro-ph/9812256; http://athena.ph.ic.ac.uk/pubs.html downloaded 4-May-99) B1950 coords added and (dummy) values of zero blanked out on 4-May-99 by H.Andernach A deep survey of the European Large Area ISO Survey (ELAIS) field in the southern celestial hemisphere (hereinafter S1) has been carried out with the Australia Telescope Compact Array (ATCA) at 1.4 GHz. ... Table 1: The ATCA 1.4-GHz Radio Catalog of S1 name ELAISR20_J....

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• WISH catalogue (sources in the region declination -25 to -9 degrees)
• A 10-GHz Radio Continuum Survey
• Radio survey for new compact HII regions

Underdetermined sets is a new type of data structures (terms) developed in Actor Prolog . ... The point is that an underdetermined set can include some indefinite rest (a tail) like a list in usual Prolog . At the same time, the order of elements of an underdetermined set can be arbitrary one and it does not affect results of unification of underdetermined sets. Moreover, Actor Prolog guarantees that a rest of an underdetermined set never contains elements that are explicitly given in the set. ...

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... IONOSPHERIC DATA IN THE INTERACTIVE SPIDR SYSTEM . ... The Ionosphere The ionosphere is that part of the upper atmosphere where free electrons occur in sufficient density to have an appreciable influence on the propagation of radio frequency electromagnetic waves. ... These regions may be further divided into several regularly occurring layers, such as F1 or F2. ... E Region: The region between about 95 and 150km above the Earth that marks the height of the regular daytime E layer. ...

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... 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- measurement 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. ...

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• Situation investigation for using during IACG/ISTP Campaign 2 scheduling
• The magnetosphere models
• The Exploration of the Earth's Magnetosphere"

. MSU-E data examples. Russian (WIN) . Orenburg (Russia) . 18/01/1999 . Astrakhan' Region . Near Znamensk . 10/05/1998 . Astrakhan' Region . Near Znamensk . 24/07/1998 . Arkhangelsk Region . Fire in August 1997 . Moscow . 16/03/1995 . Guriev, . 2/07/1996 . example 1 . Guriev, . 2/07/1996 . example 2 . © 1997-2002 SMIS IKI RAN and SRC "PLANETA" Moscow, Russia.

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• SPUTNIK, SST Black Sea . (Novorossiysk Region)

... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Planetary Nebulae and HII regions in the Elliptical Galaxy NGC 5128 . ... NGC 5128 is the closest example of a giant early type (elliptical or S0) galaxy. Although often dubbed as a peculiar elliptical galaxy since it has a dust lane with recent star formation and an active galactic nucleus, the majority of early type galaxies have similar structures as revealed by recent surveys. ...

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• Synthetic Star Forming Region HRDs
• ESO - A number of OmegaCAM filters show vignetting in their central regions.
• OYSTER Lab

Define region . ... Area/perimeter . Define a region of interest on a graph or graphs. Select the region, there are 5. ... Inside polygon . Points inside a closed, non-intersecting polygon are considered inside the region. ... In the polygonal region type, define the region by successive clicks with the left mouse button, use the right mouse button to register the polygon. ... Select the region to use. ... Click on Area or Perimeter and use the mouse to define the region. ...

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• http://xray.sai.msu.ru/~ivan/gmt/example15.html
• http://xray.sai.msu.ru/~ivan/gmt/man/blockmedian.html
• http://xray.sai.msu.ru/~ivan/gmt/man/blockmean.html

Galaxies are diffuse objects which are imaged against a background of finite brightness and noise. Galaxies which have the maximum contrast with respect to this background are the ones that are first discovered. ... These galaxies have been missed to date but active surveys for them are underway. ... In this page we present several examples of these newly discovered Low Surface Brightness galaxies as well as examples of high surface brightness galaxies. ...

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• Global Warming
• CCD Astronomy Magazine Article Page 5
• Fabry-Perot Images of Galaxies