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. ...

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. ...

... 2 Magnetic Field . ... A magnetized bar has its power concentrated at two ends, its poles ; they are known as its north (N) and south (S) poles, because if the bar is hung by its middle from a string, its N end tends to point northwards and its S end southwards. ... That flow became known as an electric current . ... An electric current produced a magnetic force! ... The fundamental nature of magnetism was not associated with magnetic poles or iron magnets, but with electric currents . ...

... 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. ...

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 . ...

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Mars . ... Previously understood that magnetic fields were directly related to rotation, so when I read that Mars, like Venus, didn't have one, my understanding crumbled. What exactly causes magnetic fields in planets? ... RELATED TOPICS: MAGNETIC FIELD . Planetary magnetic fields are definitely related to rotation, but directly not so much. ... Get instant access to subscriber content on Astronomy.com! ...

... 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). ...

... 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) . ...

Ray generator for SciSim (GSIM) 4.0 M.W. Beijersbergen and H. Siddiqui January 12, 2005 This is a paper version of the GSIM help. ... GSIM is the ray generator for SciSim. ... 4 3.2 Illumination plane . 4 4 Parameters 4 4.1 Instrument . ... ssimraystat will produce ray statistics for each source speci ed in the le impulse.dat le. impulse has the following con guration parameters:  flux : the source ux, in mm 2 s 1  sourceX : the position of the source along the x-axis in mm. ...