Next: Reading and Writing Visibilities Up: UV Data Sets Previous: General . The routine uvopen opens a uv data set and readies it for access. Here dataname is a string giving the data set's name. Status can be either 'old' or 'new' , depending whether an old data set is being read, or a new data set is being created. Tno is an integer handle passed back by the open routine (and is used for all future access to the data set). The routine uvclose closes the data set. ...

... The system is based on two straight lines ("axes"), perpendicular to each other, each of them marked with the distances from the point where they meet ("origin")--distances to the right of the origin and above it, the origin being taken as positive and on the other sides as negative (see drawing below). ... One system (" polar coordinates ") uses the length r of the line OP from the origin to P (i. e. the distance of P distance to the origin) and the angle that line makes with the x-axis. ...

StringIO . ... usr/local/Python-2.5/lib/python2.5/StringIO.py . Module Docs . File-like objects that read from or write to a string buffer. ... buf = f.readline() # read until end of line ('\n') or EOF . ... f.truncate([size]) # truncate file at to at most size (default: current pos) . ... or raises StopIteration when EOF is hit. read (self, n =-1 ) . Read at most size bytes from the file . less if the read hits EOF before obtaining size bytes). ... Read one entire line from the file. ...

This is a color composite image made by Karen Gloria at Hopkins Observatory using a 6-inch refractor and a 512x512 element CCD detector. ... This is a planetary nebula (see also the Planetary Nebula page on this server). It is relatively small, measuring approximately 8x4 arcminutes. Overall, the surface brightness of the extended ionized gas emission is one of the highest for any PN and therefore this object is easily seen through even small telescopes (including most finders). ...

... Close SSC-SPR-3253 Version 4.0.2 - 2004-02-26 GL ------------------------------- Updated task description. ... Version 1.8.2 2000-07-02 ------------------------- + test output removed Version 1.8.1 2000-07-02 ------------------------- Closed SPRs : + SSC- SPR -1147 PSF center harcoded at 320,320 + SSC- SPR -1604 Task fails if optional parameters are omitted + SSC- SPR -1791 missing info file Version 1.8 (January, 25 2000) -------------------------------- - ...

Stellarium 0.12.3 . ... Renderer . FileљStructure . ... core . ... 29 љ Vec2f position; . ... 32 љ VertexP2 ( const Vec2f position) : position(position) {} . ... 43 љ Vec2f texCoord; . ... 46 љ VertexP3T2 ( const Vec3f & position, const Vec2f texCoord) . ... 50 љ VertexP3T2 ( const Vec2f pos, const Vec2f texCoord) . ... 64 љ VertexP3T2C4 ( const Vec3f & position, const Vec2f texCoord, const Vec4f & color) . ... 68 љ VertexP3T2C4 ( const Vec2f pos, const Vec2f texCoord, const Vec4f & color) . ...

... Europa's Disconnected Surface . ... Credit: Galileo Project , JPL , NASA Explanation: Jupiter's moon Europa is so exciting that the Galileo spacecraft orbiting Jupiter has now embarked on an extended mission to study it. ... The Galileo Europa Mission has planned eight close fly-bys frozen moon. ... The above enhanced color picture shows a small region of Europa's Conamara region. ... Disconnected islands of ice are visible that have apparently rafted to new positions. ... Jupiter Moon Movie . ...

. Pulkovo NEO Page . Central Astronomical Observatory at Pulkovo . of Russian Academy of Sciences, St.-Petersburg, Russia . Apparent Close Approaches of Near-Earth Asteroids to the Stars for April 2016 . By these observations it is possible to obtain the positions of asteroids with higher accuracy. This page includes the ephemerides of such phenomena for some observatories, namely: . Pulkovo . CrAO . Kourovskaya . Majdanak . Pulkovo Obs. Mountain Station . Mondy .

... Translation of MIDAS files to FITS format is done by the OUTTAPE command: OUTTAPE cat[,list] device [flag] [dens,block] [type] . ... The flag is an optional list of three one-character flags specifying the append mode, the amount of information listed on the senior terminal and in the log file and if the LHCUTS descriptor in the file should be used for scaling (see help file for full description). ... Or position the tape at end-of-information using operating system utilities before writing new...

... Bad Astronomy . ... On Thursday, February 15th 2001 (and replayed on March 19), the Fox TV network aired a program called ``Conspiracy Theory: Did We Land on the Moon?'', hosted by X-Files actor Mitch Pileggi. ... Dust around the lander . ... However, it appeals to our common sense: when the sky is black here on Earth, we see stars. ... Bad: The program claims that when the top half of the lander took off from the Moon to bring the astronauts back into orbit, there was no flame from the rocket. ...

... Matching the Surface of Best Focus . ... The plug-plates of SDSS project are responsible for locating the optical-fiber plugs spatially and for defining the plug tilt with respect to the surface of best focus. ... Approximately 670 holes are drilled in each plate. ... In the first attempts to match the curvature of the plug-plates to that of the best focal surface, the bending fixture was set upon 3 6.630mm metal supports that were affixed to a table top and spaced 120 apart. ...