... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

... Chapter 2: Special Trouble or Action Header Keywords . ... Future enhancements will increase the special keyword reporting. Target acquisition failure) . ... All observations following the failure and preceding the next baseline guide star acquisition will contain this keyword. ... Only possible value is T. (Guide star acquisition failure) . ... Each observation until the next baseline guide star acquisition will have this keyword appended to the header file. ...

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

. FOR <loop control> <statement>... [ XFOR <statement>... ] CFOR The rules for writing < loop control > are identical to those for the FORTRAN DO-loop. The actions follow the FORTRAN DO-loop control actions. At any point in the FOR-loop an XFOR statement may be inserted. This statement transfers control to the statement following CFOR. FOR I=1,80 LINE(I)=' ' CFOR .

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

... xmmtrack . ... xmmtrack is an interactive IDL application that visualizes the orbit and attitude data in an ODF in the form of a 3-D animation sequence. The presented scenery includes an astronomically accurate simulation of the Earth-Sun system plus the actual and predicted trajectory of the XMM satellite on its path around the Earth. ... Please note: XMM's orbit is highly time variable and the predicted orbit will significantly deviate from the actual trajectory if the reference epochs differ. ...

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

130705 ephemeris tracking . The pnt command has been added to the aotcl interpreter in vxWorks (used for online datataking). within the online tcl interpreter pnt ? ... Load ephemeris file with pnt ephm ld . Track the ephemeris file . Ephemeris tracking was added to the pnt command on 05jul13. ... The new command includes loading an ephemeris file and then tracking using this file. ... The user then starts the ephemeris tracking by issuing the pnt track command: . ... cR current ra,dec . ...

October 14, 2010 =============== Address BUGS In bisque/mks: add Home on startup -- currently must be homed with the joystick reverse tracking direction in southern hemisphere check southern hemisphere mappings In order of priority -- Make a guide and manual available. Provide a method of determining best pointing correction parameters. ... Fully test pointing corrections on a system capable of arc second accuracy. ...

... Ballistics, navigation and flight control of the spacecraft, going to the L2 point of Sun-Earth system. ... and calculation algorithms have been developed: - an algorithm, building nominal trajectories for one impulse flights to the L2 point of Sun- Earth system, including a Moon swingby maneuver or not. - an algorithm, calculating corrections of spacecraft trajectory needed for the flight from Earth to halo orbit and for stationkeeping of the spacecraft moving in halo ...

... This section discusses the A tag which is used to define anchors (places in a document that can be linked to) and also to create links. ... An anchor identifies a place in an HTML document. ... HREF=" location " . ... HREF="documents/nextdoc.html" To scroll the current document to an anchor, give the name of the anchor preceded by the pound (#) sign. ... HREF="#anchor1" To open a different document at an anchor, give the URL for the document, followed by the # sign followed by the name of the anchor...

Home exam: course by Andrґ Navas es Problem 1. a) Find a (non-minimal) map T : X X and a function : X R with bounded Birkhoff sums, x X, n N |Bn ()| ... C g G iii) The cohomological equation (g x) - (x) = c(g , x) has a continuous solution. ... A center of a bounded set is the center of a ball of the smallest radius containing this set. a) Find the center of a triangle; b) Prove that the center belongs to convex closure of a set. ... S 1 b) Prove that the cardinality of the set of {i : 0 i < n | ...

OptInt PmWiki : Pm Wiki / Site Page Actions . ... item rel=nofollow class=browse accesskey='$[ak_view]'% [[{*$FullName} | View] ]] * %item rel=nofollow class=edit accesskey='$[ak_edit]'% [[{*$FullName}?action=edit | Edit] ]] * %item rel=nofollow class=diff accesskey='$[ak_history]'% [[{*$FullName}?action=diff | ... Later lines use link targets like {*$FullName}?action=edit which says to go to the currently displayed page and start editing it. ... Note that any Group can have a Page Actions ? ...

TOOLS OF TEST GENERATION FOR SATELLITES CONTROL PROGRAMS Andrey Tyugashev, Ekaterina Myasnikova, Elena Sopchenko S.P. Korolyov Samara State Aerospace University (National Reseach University) The paper presents a research in the field of test automation for testing spacecraft control programs. ... Programmers or designers of spacecraft systems write tests manually. ... Tests are carried out by issuing the control actions on the spacecraft and condition monitoring systems parameters of the spacecraft. ...

... Following a decision by the DCAL during 2003 to consolidate the TSN policies of the agencies, NDPBs and Statutory Bodies that it currently supports, the Armagh Observatory and Armagh Planetarium policies on New Targeting Social Need were incorporated into an overarching DCAL joint policy. ... The New TSN Policy for 2004, which was updated most recently in January 2004, is available on the internet at star.arm.ac.uk/TSN.html . ... 2004-05-18 ...

... 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. ...

Comets necessarily obey the same physical laws as every other object. ... If one considers only two bodies -- either the Sun and a planet, or the Sun and a comet -- the smaller body appears to follow an elliptical path or orbit about the Sun, which is at one focus of the ellipse. ... Another quantity that is conserved is called angular momentum. ... Comets simply are bodies which in general have more angular momentum per unit mass than do planets and therefore move in more elongated orbits. ...

Bigbang Forum Message . ... You're On The Right Track . ... Yes, you're on the right track. ... If we converted everything into gravity, space would shrink. ... The edge of space has no mass, thus, gravity doesn't emit work upon it. Gravity can only affect the edge of space indirectly, by doing work on the innards of space. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

This module provides for server-side imagemap processing. ... Configurable generation of imagemap menus. The lines in the imagemap files can have one of several formats: directive value [x,y ...] . ... The directives can come in any order, but are processed in the order they are found in the imagemap file. base Directive . ... Module: mod_imap . ... Its value is overridden by a default directive within the imagemap file. ... Its value is overridden by a base directive within the imagemap file. ...