... 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. ...

STIS Instrument Handbook for Cycle 24 . ... Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 24 > Chapter 14: ImagingReference Material > 14.6 Image Mode Geometric Distortion . ... Image Mode Geometric Distortion . ... Geometric distortion and plate scales for the STIS imaging configurations have been measured on-orbit by observing star fields shifted to different positions in the field, following a procedure similar to that used for WFPC-2 (Holtzman et al., ... arcsec/pix) . ...

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. ...

... Up: Future Instruments and Telescopes, Tools . ... New Generation Astronomical Telescopes (NGAT), a class of telescopes designed to be operated remotely and robotically, require efficient methods for communicating images over heterogeneous and low-bandwidth data networks such as the Internet. ... Methods researched thus far involve the classification of astronomical images based on object parameterisation, progressive image transmission, and evaluation of existing image compression schemes. ...

... The sky system is specified with SKYSYS= and an integer number. ... If, for example, the input set has an equatorial system and you want position 0,0 also in ecliptical coordinates with epoch 1983.5, use: POS=0 0 SKYSYS=3 EPOCH =1983.5 Example: USER COORDS USER COORDS INSET=NGC4214 FREQ 29:34 Set NGC4214 has 3 axes RA-NCP from -127 to 128 DEC-NCP from -127 to 128 FREQ-OHEL from 1 to 63 USER COORDS POS=0 0 RA-NCP DEC-NCP FREQ-OHEL (DEGREE ) (DEGREE ) (KM/S ) 183.125 ( ...

... To compare images from different instruments it is desirable for them to have the same scale and orientation. ... Use for shrinking. im> imlintran casa casa_m 0. 0. 2. 2. # input image casa.imh is shrunk factor of 2 # and result put in casa_m.imh . ... im> magnify casa casa_m 0.5 0.5. To shift, specify the old and new position of the image center. im> imlintran casa_m casa_mt 0. 0. 1. 1. xin=256 yin=256 xout = 276 yout=456 # moves the image casa_m 20 pixels to the right and 200 pixels up. ...

... European Remote Sensing Satellite (ERS-1) was launched on 17 July 1991, and the follow mission ERS-2 (with the same sensors and an Ozone monitoring instrument added) was launched on 21 April 1995. ... ERS-2 has a fixed repeat cycle of 35 days, and follows ERS-1 tracks with one day's delay. ... Swath width is 102.5 km (telemetered), spatial resolution is about 25x25 m. The Advanced SAR (ASAR) instrument is carried by ESA's ENVISAT satellite launched on 1 March 2002. ... Swath . ... Spatial Resolution...

The polar oval complete and partially visibility for the optical instruments on board of the AURORAL PROBE are shown by different symbols . The polar diagram of the Spacecraft positions magnetic mapping during polar oval visibility for the UVAI and UVSIPS cameras. The polar diagram shows the Spacecraft corrected geomagnetic co-ordinates : co-latitude - local time . ... The real time visibility (Moscow time MT=UT+3h). Date is shown along the X-axis, the MT - along the Y-axis. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The low-resolution, Cassegrain mounted, FORS spectropolarimeter of the ESO Very Large Telescope is being extensively used for magnetic field surveys. Some of the new discoveries suggest that relatively strong magnetic fields may play an important role in numerous physical phenomena observed in the atmospheres as well as in the circumstellar environments of certain kinds of stars. ...

Interball-Tail Magnetic field measurements . Magnetic field measurements on-board the Interball Tail Probe are carried out by the FM-3I and MIF instruments. ... FM-3 M2 magnetometer failed in February 1996, FM-3 M1 and MIF are working until now. Data presented here are the combination of the data of all magnetometers. First of all FM-3 M1 data are used, if they are absent, MIF data used and if data of both magnetometer are absent, FM-3 M2 data presented. ...

... Science . ... Science Users Information > Observing Facilities > Instrumentation Development > VLT/Instrument Interfaces . ... APEX Visitor Instrument . ... The interfaces between the VLT Unit Telescopes and the scientific instruments to be operated at the VLT Cassegrain, Nasmyth and Coudц© foci are well defined. ... Interface and numerous other relevant information for instrument builders is available in the "Requirements for Scientific Instruments on the VLT Unit Telescopes" , ESO doc. no. ...

RTT150 . ... This search system is designed for generating the necessary information on series of pointings (observations of each source consist of sets of exposures with different filters and sometimes with different exposure times) for observed sources. Search results appear at the separate page as a table with the following data: . DATE - real (not evening!) observations date (in YYYY-MM-DD format); . ... Bin - minimal CCD binning mode (may vary during the observations); . ...

A celestial position may be passed in different coordinate systems (B1950, J2000 or Galactic) or can be the position of an object. coordinates: The first letter of the string may be used to specify the coordinate system. ... Equatorial coordinates may be passed in decimal or sexagesimal "free" format. ... To precise it is the position of an object in NED or in Simbad, it may be written: ned:M81 or simbad:M81 Valid examples: 121314+122025 , B1950 position (default is B1950 if no system is given) . ...

At Arecibo we have a variety of optical instruments that we use to study terrestrial airglow emissions. ... As a complement to the airglow instrumentation we also maintain a set of optical instruments, called lidars, used for "active" remote sensing of the atmosphere. That is, we generate our own source signal using lasers and measure the characteristics of the light scattered back from the atmosphere. ... An operations manual for the Optical Laboratories is currently under major revision. ...

IBIS - The Interferometric BIdimensional Spectrometer . The I nterferometric BI dimensional S pectrometer (IBIS) is a next generation bidimensional spectrometry instrument based on a dual Fabry-Perot interferometric system. ... This will allow it to address a variety of observational programs in solar physics. ... Cavallini, F., Berrilli, F., Cantarano, S., Egidi, A. and Baffa, C.: 1999, IBIS: A New Instrument for Solar Bidimensional Spectroscopy , JOSO Annual Report 1999 , 29 , p. 99 . ...

... Image Quality of the VLT . Total Optical Control . First light for the ESO VLT unit telescope 1 occurred during the workshop. ... The image shown (Figure 1 ) here was obtained with the VLT on May 16, 1998, in red light (R band), i.e. while the mirror was still uncoated. ... In this diagram (FIgure 2), the measured image quality of the VLT UT1 astronomical images is plotted versus the ``seeing", as measured by the Seeing Monitor, a small telescope also located on top of the Paranal Mountain. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 March 30 . Beijing Ancient Observatory . ... Explanation: Did observatories exist before telescopes ? One example that still stands today is the Beijing Ancient Observatory in China . ... It is interesting to compare the above picture to one taken in 1895 . ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... 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. ...

... Space flight . ... Simulators . ... Space camp . Space Hotel . ... Virtual reality-based stand for ISS crew training is used for cosmonauts pre-training preparation at different stages of training for the space flight. ... At present cosmonauts and astronauts can work both with the SM and FGB images independently and having them in mated state. ... Info: Industry news On-line Data Company ATLAS news Events We in press Contact . Copyright 2000-2016 ATLAS Aerospace . ...

... To mark coordinate net in plot, first select Plate in menu bar and then Coordinate net in drop-down menu. ... User has possibility to save plot of sky or to print it using standard means. To save the file select File item in menu bar and then Save As... in drop-down menu. ... To print plot of plate select File item in menu bar and then take advantage of options Print Preview , Print Setup , Print. ... To return to the list of centers click on x button in title bar. ...