slitless -- Extract a spectrum from a direct/GRISM image pair slitless image grism output PARAMETERS . ... A two dimensional direct image to be used to select an object. grism . A two dimensional GRISM image containing slitless spectra of objects present in the direct image. output . ... Toggle whether or not a background estimate is subtracted from the extracted object spectrum. mingood = INDEF . Pixels of the grism image with values smaller than this are ignored. maxgood = INDEF . ...

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• ST-ECF Grism Spectrum Software for NICMOS Grism Data
• The Photometric Performance of the NICMOS Grisms

... The new emission line galaxies are listed in Table 2 containing the following information: . column 1: The object's IAU-type name with the prefix HS. ... This was not corrected in the figure shown in Appendix A. HS1214+3801 : This is seemingly a supergiant H II -region at the very rim of the nearby edge-on disc galaxy (SA(s)cd) NGC 4244 (V hel = 224 kms -1 and B T =10.88). ... To check this option one needs a detailed map of the NGC 4244 velocity field including HS 1214+3801. ...

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• Cosmic Microwave Background Anisotropy
• Background Estimates
• Radio data

SAS home . SAS Watchout items . ... This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, subtracting the background and correcting for exposure loses. ... The SAS task barycen performs this correction. ... If the following files are available: a) RGS event list; b) RGS source list, a call to the task performing light curve extraction, correction and background subtraction rgslccorr allows a user to create the light curve. ...

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• Parameters

... Chapter 5: Visits, Exposures and Exposure Groups > 5.19 Exposure Containers: Exposure Groups, Coordinated Parallels and Patterns . ... Whenever you wanted to create a set of exposures to be executed in a special way in RPS2 (e.g., a mosaic pattern on a region of the sky), you could specify exposures separately and then link them with exposure-level special requirements. ... Note: You can place containers within containers (e.g., a coordinated parallel container can be inside a pattern container). ...

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• Index
• STIS Data Handbook
• HST this week: 301

... java.lang.Object ij.gui.Roi ij.gui.Line . ... public class Line . ... int . ... protected double . ... Constructor Detail public Line (int ox1, int oy1, int ox2, int oy2) . Creates a new straight line selection using the specified starting and ending offscreen integer coordinates. public Line (double ox1, double oy1, double ox2, double oy2) . Creates a new straight line selection using the specified starting and ending offscreen double coordinates. public Line (int sx, int sy, ImagePlus imp) . ...

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• PolygonRoi (ImageJ API)
• PointRoi (ImageJ API)

... Apache HTTP Server Version 2.4 . ... Session encryption support . ... session_crypto_module . ... The session will be encrypted with the given key. Different servers can be configured to share sessions by ensuring the same encryption key is used on each server. ... The SessionCryptoPassphrase directive specifies the keys to be used to enable symmetrical encryption on the contents of the session before writing the session, or decrypting the contents of the session after reading the session. ...

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• mod_cgi - Apache HTTP Server
• mod_dav - Apache HTTP Server
• mod_authz_dbm - Apache HTTP Server

Data access in GIPSY is done through a set of routines collectively known under the name `` GDS '' (GIPSY Data System). ... A set consists of one or two files: the descriptor file and the image file. ... In GIPSY there are kinds of coordinates: . ... To retrieve a descriptor item, given its name and level, the GDS reading routines start looking at the specified level and if it is not found there, higher levels are tried. ... Every GDS routine has an integer error argument, which often is optional. ...

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• delaysolver CentralProcessor 0.11 documentation
• World Coordinate Systems (WCS) in FITS
• Clock Corrections at Parkes

... Source File: mod_negotiation.c . Module Identifier: negotiation_module Content negotiation, or more accurately content selection, is the selection of the document that best matches the clients capabilities, from one of several available documents. ... A type map (a file with the handler type-map ) which explicitly lists the files containing the variants. ... Apache only recognizes encodings that are defined by an AddEncoding directive. ... Content-Language: . ... Module: mod_negotiation . ...

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• Apache module mod_cgi
• Apache module mod_imap
• Apache module mod_log_referer

The Equatorial Inertial (GEI) coordinate system: . The X GEI axis is directed to the point of the spring equinox, . The Z GEI axis is coincide with the Earth's rotation axis, . The Y GEI supplements the right three. The Geographic (GEO) coordinate system: . ... The Solar Magnetic (SM) coordinate system: . ... About space physics coordinate transformation see Russel [1971] and Hapgood [1992] . ... M.A. Hapgood , Space physics coordinate transformations: A user guide // Planet Space Sci. ...

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• INTERBALL IB_TAIL last day in the topocentrical c/s of the landing point
• The magnetic conjugation numerical file description
• Parallax

Next: Photometry Up: Regions and Source Parameters Previous: *imcnts* - Find counts . This task (developed for use with optical images, but also useful with x-ray data) will quickly compute location, size, ellipticity, and position angle of sources. ... User can generate contour plots of any portion of the image and count rates in slices through the image. The program is advertised as ``quick [optical] photometry''. input file: rp110590_im1.imh . output file: logfile . ... Photometry . ...

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• *imcalc* - Obtain a background subtracted image for ROSAT PSPC Data
• Chandra Supernova Remnants Catalog - Format of the Catalog
• Detect

. To redirect the standard output from a command use the > (greater than) symbol followed by the name of the output file. If the file that you redirect standard output to does not already exist it will be created. For example: grep Smith /etc/passwd > popular . This redirects the standard output from the grep command so that it goes to the file popular . This file will contain all occurrences of the string Smith that were found in the /etc/passwd file. **Caution** . Did You Know? .

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• Fill-Out Forms
• Removing linked directories that contain links
• Documentation via info-server@uk.ac.nsfnet-relay

Next: The root filesystem Up: Overview of the Directory Previous: Overview of the Directory . This chapter is loosely based on the Linux filesystem standard, FSSTND, version 1.2 (see the bibliography, [ Qui95 ]), which attempts to set a standard for how the directory tree in a Linux system is organized. ... This chapter does not explain all files in detail. ... The major parts are the root, /usr љ , /var љ , and /home љ filesystems (see figure 2.1 ). ... Figure 2.1: Parts of a Unix directory tree. ...

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• The root filesystem
• DIRECT MASSES FOR BXCIR AND PVTEL VARIABLES
• Disks without filesystems

Next: A New Entropy Measure Based on Multiple Resolution and Noise Modeling . ... The entropy measurement has been proposed for image restoration several years ago in astronomy. ... The multiscale entropy has the advantage to introduce a noise modeling, and the concept of information at different level of resolution. ... We show in this paper that it can also be used for background fluctuations analysis. ... Five simulated images were created by adding 400, 200, 100, 50, 0 sources to a noisy image. ...

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• ADASS 2002 Conference Proceedings
• Automated Software for Slitless Spectroscopy Analysis and Quasar Selection
• Recreating Einstein Level One Processing Exposure Masks and Background Maps in

Coordinate Systems used for spacecraft trajectory description: . ... The HGI coordinates are Sun centered and inertially fixed with respect to an X-axis directed along the intersection line of the ecliptic and solar equatorial planes. ... Cometocentric (solar) Ecliptic Coordinate System (CSE) . ... CSE coordinate system for the SC POSITION: axis origin at comet center, X-axis to the SUN, Z-axis to ecliptic north pole, (X,Y)-plane is parallel to the ecliptic plane. ...

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... Astrophysics Group . ... COAST . Fringes and Power Spectra from COAST . ... After acquiring a star, measurements must be made of the (complex) fringe visibility on each baseline. ... Fortunately, even in the presence of very strong atmospheric turbulence there is a good observable: the phase of the triple product of the visibilities on three baselines, commonly known as the closure phase. ... We then form the power spectrum of the resultant data, and hence estimate the visibility. ...

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• Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA
• Accessing measurement set data Bojan Nikolic web pages (r. 329)
• OptInt PmWiki : Site / Page List Templates

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

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• Cabinets containing the Palomar, ESO and UKST survey plates and films.
• Walter Stibbs signs the page containing his picture for Kim Rawlings
• Some Black Holes are Pink

Stellarium 0.12.3 . ... TelescopeClient Class Reference abstract . ... getEnglishName (void) const . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getJ2000EquatorialPos (const StelCore *core) const =0 . ... getEquinoxEquatorialPos (const StelCore *core) const . ... getJ2000GalacticPos (const StelCore *core) const . ... getSideralPosGeometric (const StelCore *core) const . ... getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const . ...

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• SphericalTexturedPolygon::TextureVertex Struct Reference
• Stellarium: Nebula Class Reference
• Stellarium: TelescopeClientDirectNexStar Class Reference

... May 29, 1998 . An Extrasolar Planet? Credit: S. Terebey Extrasolar Research Corp. NASA . ... The picture shows a very young double star located about 450 light-years away toward the constellation of Taurus . Cataloged as TMR-1 (Taurus Molecular Ring star 1), the binary system is still embedded in the dust cloud that formed it. ... A filament extends from the binary system toward the lower left and points toward the spot of light representing the candidate planet. ... About APOD > . ...

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• The Network Time Protocol (NTP) Distribution
• GIMP animations: merge-anim examples
• Kuiper-Oort

... An Extrasolar Planet? ... NASA Explanation: This infrared Hubble Space Telescope view may contain the first ever direct image of a planet outside our own solar system. ... While this and other tantalizing discoveries of extrasolar planetary objects and protoplanetary disks don't seem to offer direct examples of solar systems like our own , they do strongly hint that planet formation is a varied and common process. ... Publications with keywords: extrasolar planet - planet formation . ...

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• Journal "Peremennye Zvezdy"
• Астронет > An Extrasolar Planet?
• XWare > APOD

The Mars Flag has a different design on the reverse side. obverse side of flag . ... The orbit lines on the obverse cross the Sun on the lower half of the flag and appear to go behind the Sun on the upper half of the flag. The reverse side has the orbits lines continuing around the Sun on the upper half of the flag. ... The Mars Flag reverse side is a continuation of the obverse side and not just a different design on the back and not a mirror image of the obverse. Main Flag Background Color . ...

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• ASP: Astronomy in the News
• ASP: The Story of the Transit of Venus
• ASP: The New and Improved Hubble Space Telescope