... Abstract Write a type 18 segment to an SPK file. ... See $Particulars for a description of the effect of this routine. ... Particulars This routine writes an SPK type 18 data segment to the open SPK file according to the format described in the type 18 section of the SPK Required Reading. ... Write the segment./ spkw18_c ( handle, subtyp, body, center, frame, first, last, segid, degree, n, states, epochs ); . ... 1) If frame is not a recognized name, the error SPICE(INVALIDREFFRAME) is signaled. ...

Federal Communications Commission (ix)(A) For a station authorized pursuant to § 73.215 or Sec. § 73.509, a showing that the root mean square (RMS) of the measured composite antenna pattern (encompassing both the horizontally and vertically polarized radiation components (in relative field)) is at least 85 percent of the RMS of the authorized composite directional antenna pattern (in relative field). ...

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 . ...

The NTP standard specifies an extension which provides cryptographic authentication of received NTP packets. ... The specification allows any one of possibly 4 billion keys, numbered with 32-bit key identifiers, to be used to authenticate an association. ... In the case of MD5, the keys are 64 bits (8 bytes). xntpd reads its keys from a file specified using the -k command line option or the keys statement in the configuration file. ... A zero key in NTP format would be specified as 8080808080808080 . ...

... Directives | ... Apache HTTP Server Version 2.2 . ... This module controls the setting of the Expires HTTP header and the max-age directive of the Cache-Control 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. ... access . ... If set to On , the headers will be added to served documents according to the criteria defined by the ExpiresByType and ExpiresDefault directives ( q.v. ). ...

... User Guide ] Task: impos Purpose: Converts image coordinates between different systems. ... Key: in The input image or visibility dataset. ... Choose from: hms HH:MM:SS.S (e.g. for RA) dms DD:MM:SS.S (e.g. for DEC) arcsec Arcseconds relative to the reference pixel absdeg Absolute degrees reldeg Degrees relative to the reference pixel abspix Pixels relpix Pixels relative to the reference pixel absghz GHz relghz GHz relative to the reference ...

... The Great Basin on Tethys . ... Credit: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: Some moons wouldn't survive the collision. Tethys , one of Saturn's larger moons at about 1000 kilometers in diameter, survived the collision, but sports today the expansive impact crater Odysseus. ... The above digitally enhanced image was captured late last year by the robot Cassini spacecraft in orbit around Saturn as it swooped past the giant ice ball . ... The Great Basin on Saturns Tethys . ...

... Directives | ... Apache HTTP Server Version 2.2 . ... Generation of Expires and Cache-Control HTTP headers according to user-specified criteria . ... This module controls the setting of the Expires HTTP header and the max-age directive of the Cache-Control HTTP header in server responses. ... ExpiresByType . ... This directive defines the value of the Expires header and the max-age directive of the Cache-Control header generated for documents of the specified type ( e.g. , text/html ). ...

Allows you to specify a drift scan: motion at a constant velocity along a great circle. ... The path starts at the new object position (though the telescope actually intersects the path later, see Subtleties ). ... Note that the units are always /sec for both axes. ... The velocity along the path is 0.01 /sec. ... The path is assumed to start when you hit the Slew button (more precisely, when the TCC parses the command). However, it takes the telescope awhile to slew to meet the specified path. ...

UFO Forum Message . Forums: . ... Post . ... It Really Is Relative . ... Post Message | ... If you are on the Earth the moon does not rotate around its own axis. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... What is the World Wide Web? Introduction to URIs . ... HTML 4.0 . ... Compound documents . ... Authoring documents with HTML 4.0 . ... Every resource available on the Web -- HTML document, image, video clip, program, etc. -- has an address that may be encoded by a Universal Resource Identifier , or "URI". ... This URI may be read as follows: There is a document available via the HTTP protocol (see [RFC2068] ), residing on the machine www.w3.org, accessible via the path "/TR/REC-html4/". ...

... Transforms a qpoe file according to the specified parameters. ... Any type of filtering can be applied to the input qpoe file, including region filtering. In addition, the size of the output event record can be different from the size of the input event record. Of course, usually one makes the output record equal to or smaller than the input. If the output record size is made greater than the input record, a warning is issued and the ``extra'' part of the record is undefined.) ...

... The task also issues a number of housekeeping related messages and values and also writes several keywords to the EXPOSURE extension (the information is usually CCD-dependent and it is thus important that it is kept and propagated through the event file processing chain). ... Filter: the filter wheel position is derived from the position sensor potentiometer (housekeeping column F1122 contained in the main periodic housekeeping file PNPMH1 , HK mnemonic H_CE_FWSPOT). ...

... The CAPTION element is used to label a table or figure. Use the align attribute to specify the position of the caption relative to the table/figure. ... CLASS . ... The CLASS attribute is most commonly used to attach a different style to some element, but it is recommended that where practical class names should be picked on the basis of the element's semantics, as this will permit other uses, such as restricting search through documents by matching on element class names. ... ALIGN . ...

... readmodel , file _char Read a model file. calcmodel Compute the model data for data sets with non-zero weight. modelchisq () Function. Return reduced of currently loaded data wrt model. binarypos ([ epoch _real [, component _char ]][, lambda = lambda ][, com = com ][, abs = abs ]) Function. ... Use today if no epoch is specified, and use the top hierarchical component if no component is specified. ... Examples: PRINT,MODELK(' A'), PRINT,MODELK(' AB'). modelpx ( component _char ) Function. ...

To proceed to drawing tracks of some objects select Tracks item in menu bar and then select Input Data in drop-down menu. Enter initial and final dates of time interval in corresponding data fields of the Input Data dialog box Input Data . ... The frame with horizontal and vertical scales corresponding to the right ascension and declination axes appears on screen. ... Depending on specifications introduced in the Input Data dialog box the picture represents tracks up to three different objects. ...

spaceweb@oulu.fi - last update: 22 September 1998, 1640 UT (RR) . Great magnetic storm are often related with auroras of high visual brightness that are seen at exceptionally low latitudes. Especially, two types of high altitude red auroras are seen: . type-A red aurora . ... Type A red aurora can be seen only during the main phase of the strongest magnetic storms. ... Feb 10, 1681 . ... Mar 17, 1716 . ... Sept 15, 1839 . ... Aug 28, 1859 . ... Bombay, Mexico, Athens (zenith) . ... Res. ...

... The visible power a source emits in all directions is measured in lumens. ... Solid Angle- . ... The solid angle of a light cone is the projected area of the cone divided by the total surface area of the sphere. A solid angle is measured in steradians, where 1 steradian corresponds to the solid angle su btended by a cone of unit slant height and unit projected area. ... Luminous intensity is the flow of luminous energy, or lumens, per steradian. ... This is the rate of flow (lumens) per unit area. ...

Stellarium 0.12.3 . ... StelCircleArcRenderer Class Reference . Provides functions to draw circle arcs using StelRenderer . ... drawGreatCircleArc (const Vec3d &start, const Vec3d &stop, const SphericalCap *clippingCap=NULL, void(*viewportEdgeIntersectCallback)(const Vec3d &screenPos, const Vec3d &direction, void *userData)=NULL, void *userData=NULL) . ... Create a circle arc renderer to draw multiple circle arcs . ... void(*)(const Vec3d &screenPos, const Vec3d &direction, void *userData)љ . ...

... AR12381 (N06L073, Sp max=550 msh, M/2)-the bipolar sunspot group stret- ched on longitude appeared on east limb 2.07 in a quiet state, however at the end of the days 5.07 in a middle part there was a new quickly emerging magnetic flux which already in the first half of the next days led to occurred of flare of X-ray class M1, and in 10 hours to flare 2N/ M1.7. ... AVERAGE LOW LEVELS OF THE SUNSPOT-FORMING ACTIVITY ARE EXPECTED ON THE NEXT WEEK. ... R - solar rotations; KP - KIT PEAK solar...