... The orbits as follows are considered: INTERBALL Tail Probe (IB_TAIL) & Auroral Probe (IB_AUR), GEOTAIL (NASA/ISAS), and POLAR (NASA). ... The situation investigation aim is to select the following favourable spatial positions (FSP) : . ... FSP3 : That part of the FSP1 & FSP2 time intervals, which corresponds to the magnetic conjugations of the any couple of the considered spacecraft. ... The polar diagram plot . ... The geocentric distance (GCD) of the 4 spacecraft as a function of the time. ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

Astronomy Discussion Forums . ... I Think What You're Saying Is Not A Deeply-considered Position . ... Post Message | ... Posted by M.W.Pearson on October 16, 2002 19:36:09 UTC . ... I think there is more to it than dismissing Dr. Dick's position. ... http://www.astronomy.net/forums/god/messages/23110.shtml . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

TUI supports the following offsets: . Object Arc offset by a given amount on the sky (i.e. along the arc of a great circle). ... Arc offsets are useful for moving a different portion of your object or a different nearby object onto the boresight . ... Object Arc XY this is identical to an Object offset except that it has been rotated to align along the instrument x-y axes. ... This is just like the Calibration XY offset, except that it is typically cleared when you slew to a new object. ...

The Library of Medium Resolution Spectra . HyperLeda home | Documentation | ... The library is divided into different archive corresponding to the different datasets. ... They are stored as tar files. ... cumulus . ... The archive will be divided in subdirectories in order to avoid problems with some unix commands which have a limitation in the size of the argument or number of files. ... The file name is the file number in this dataset The file naming convention has the form: LYYMMOBSj/nnnn . ...

... Positions in 2000 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2001 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2002 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2003 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2004 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . ...

... Archives . ... If you do not mind the time predictor, it is hard to believe that this is a light curve, time dependent data. ... It?s hard to say this data set is designed for time series analysis apart from the complication in statistical inference due to measurement errors. How to design the statistical study with measurement errors, huge gaps in time, and unequal time intervals is complex and unexplored. ... The following is R output without measurement errors. ... Chandra Blog . ...

... Analysis of in-orbit data closely follow the CSL data analysis. Stars with known astrometric positions are matched with their image centroids. ... The measured position, the expected position and the offset between the measured and expected positions are calculated and written into a file. ... select catalogued positions for different observations/pointings (e.g. positions of objects in photometric sequence) . ... The new distortion map was generated from in-flight observations of the G153 field. ...

... A photometric analysis was made of the simulated images using two of the widely available reduction programs, ROMAFOT (Buonanno et al. 1983) and DAOPHOT (Stetson 1987). ... The rebinned and expanded image gave better results (Fig. 7b), with the smallest errors in the order of = 0.04. ... Similarly to ROMAFOT, the image with the Moffat PSF gave significantly better results than the image generated with the Tiny Tim PSF; the errors in the magnitudes of the brighter stars were around = 0.02. ...

These observations are aimed at fully charactering FORS1 photometric system (UBVRI zero-points, color-terms and extinction coefficients) for the Tektronix 2048x2048 pixel CCD (24µm px) . To this aim, the two Landolt/Stetson photometric fields SA95 and SA101 will be observed on a number of epochs and at different airmasses during February and March 2007. ... SA101 . ... OBs for SA101 have to be observed during evenigh twilight (exceptions are expected for the second half of March) . ...

FSP1 : The time intervals corresponding to the INTERBALL TAIL PROBE (IB_TAIL) or GEOTAIL passage through the simulative magnetosphere boundary layer (BL) . ... FSP3 : That part of the FSP1 or FSP2 time intervals, which corresponds to the magnetic conjugations between any couple of the considered spacecraft. The value of the relative geocentric angular distance between magnetic field line's footprints is considered during FSP3 situation selection. ...

Contents] [Prev page] [Next page] [Index] . Navigator 4 from Netscape, which is part of the Communicator product suite, includes three new areas of functionality that taken together give you Dynamic HTML. The three components of Dynamic HTML are style sheets, content positioning, and downloadable fonts. Used together, these three components give you greater control over the appearance, layout, and behavior of your web pages. ... Introducing Downloadable Fonts . ...

There are six possible ways of object description: . a) by number(s) . ... d) by list . e) by orbital elements . ... They should be introduced as year, month, day with tenth (e.g. 20021104.1). d) Computations are performed for all objects listed in the file whose path and name should be introduced into assigned data field. ... On pressing Edit file button user has a possibility to look through the list of object elements or their coordinates and velocities to add or to change it. ...

... Information about a variety of different calendars for different cultures (e.g., Christian, Jewish, Muslim, Chinese, Hindu etc.) ... In addition, the Chinese had two different ways of interpreting and observing celestial events. One way the Chinese used astronomy was known as lifa; it was a discipline that aimed to understand the regularities and the predictable events in the celestial system through careful, observations, measurements and records. ... back to Teachers' Newsletter Main Page ...

... Between them, the following points are touched: ICRF-2 structure, ICRF Core sources selection, and some expected user's requirements. ... Suggested total number of sources is close to the number of sources already observed in the IVS and VCS sessions, and for most of them reliable positions are derived, mostly for declination > -40 deg. ... So, results of source position time series analysis heavily depend on method used for time series computation and should be used with care. ...

... Dale A. Gardner . NASA Astronaut (deceased) . ... NASA EXPERIENCE: б  Gardner was selected as an Astronaut Candidate by NASA in January 1978, reporting to the Johnson Space Center in July 1978.б  In August 1979, he completed a one-year training and evaluation period, making him eligible for assignment as a mission specialist astronaut .б  He subsequently served as the Astronaut Project Manager for the flight software in the shuttle onboard computers leading up to the first ...

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

... The procedure simply observes ON your source for x minutes and then takes a `blank sky' observation OFF your source for the same amount of time and tracking the same azimuth and zenith angle range. ... If your scans are for 5 minutes or less, your wait time should be set to 1 minute (the default setting). ... 2 (scan duration) + (slew time) + (calibration time) A 5 minute ON/OFF + 10s CAL takes 11.3 minutes. A 7 minute ON/OFF, (which has a 2 minute slew time plus a cal) takes 16.3 minutes. ...

... Next: 7 kslice_3d: slicing data Up: Karma User Manual Previous: 5 Volume Rendering a . The <kpvslice> programme allows you to use a two-dimensional image to define a slice through a three-dimensional data cube. ... The slice is drawn on the total column density or velocity field map, and the corresponding position-velocity diagram will appear in the other window. ... To load the cube, press the Cubes button in the left window and select a cube file. ... The image is displayed in the left window. ...

... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...