... On-The-Fly Calibration/Reprocessing Systems . ... The On-The-Fly Calibration (OTFC) system, publicly released in Dec. 1999, calibrated data at the time a user requested data from the Archive. ... The On-The-Fly Reprocessing (OTFR) system replaced OTFC on May 16, 2001. ... To address this issue, a new header keyword, PROCTIME, has been added to OTFR data to record when the system processed the data. ... POD file (original telemetry file) is retrieved from HST Archive nd passed to OTFR system. ...

... There is a search machine which is valuable if you have a problem which can be described in terms of a few key words. The technical forums will also describe new facilities as they are brought on-line. CA-forum - compact array technical issues . ... The Narrabri Compact Array documentation . ... Search tool ----- This only covers the epping web site. ... 04-Apr-1997 M.J.L. Kesteven (mkesteve@atnf.csiro.au) . ...

The FITS archive & data processing pipelines . ... The archived data are broad band images (BBI) and long-slit spectra (LSS) plus their associated template and calibration files. The data in HFA can enter into the HyperLeda processing pipeline and the results can be freely downloaded. ... Definition of the file system (structure of the archive) . ... The coordinate systems must be updated when the data (pixel data, other keywords, related tables) are altered (eg. rebinning of the image). ...

... The routine processing of STIS data in the calibration ``pipeline" requires an interrelated set of software tasks and databases developed and maintained by many groups at STScI. We present the systems-level design of this calibration pipeline from the perspective of the STIS instrument group at STScI. We describe the multiple interfaces to the pipeline processes that the STIS group works across in an effort to provide for the routine calibration of STIS data. ... For example, the STIS group: . ...

SAS home . ... List of SAS threads . OM data processing from A to Z is performed by two "chains": omichain and omfchain , for image and fast mode data respectively. ... Then a source detection algorithm is used to identify the sources present in the image. ... A final source list is obtained from all exposures and filters. ... If the user has PPS products from the processing of his/her observation, or from the XSA, then the first thing to do is to overlay the image source list onto the sky image. ...

... Science Users Information > Observing with ESO Telescopes > Phase 2 Preparation > Phase 2 Submission . ... Service Mode Philosophy . ... OB Execution Overheads . ... Readme File . ... Checking OBs and README files in the ESO Database . ... These checks will also be automatically performed at the time of checking the Phase 2 material into the ESO Database, and non-compliant OBs or README files will be rejected. ... All Service Mode OBs and README files must be submitted to the ESO Database from P2PP....

... The Second International Astronomy Olympiad . ... Problems to solve, 8-10 Form Text of these problems is available in Russian too. ... Two stars have the same absolute magnitude. ... The orbital period of Mars is 687 days. ... See problem 2. for 8-10 Form. ... Problem to solve, 9-12 Form Text of the problem is available in Russian too. ... Problem is about Doppler-effect, to find velosities of two stars using their spectra and spectrum of our Sun, to estimate speed of the Earth moving around the Sun...

... The choice of the spectrograph design (Fig.2) is determined by the quantity R, the overall dimensions of the PF cage and the restrictions on the rigidity of the structure of the device. ... As the camera's objective a fast 4-lens aplanat is used having a focal distance F cam =140 mm and a relative aperture of 1:1.8, the resolution at the centre is no less than 80 gr/mm, that over the field at a distance of 3 mm from the edge along the frame ( ) diagonal is 35 gr/mm. ...

... The radars were causing a longer recovery time in the alfa receiver. ... 2 bands of 172 MHz centered at 1300 and 1450 MHz.1 second sampling for 5 minutes . ... The data was then processed and the total power at each .1 second interval was computed. ... Any channels above 3 sigma were exluded (1450 band usually excluded 5 %, 1300 MHz radar band excluded about 15%). compute the power for each .1 second spectra using the good channels. ... The top two frames have polA 1300 MHz and 1450 MHz . ...

... In this activity, students will observe that the faintest stars which they can see in the sky are affected by many things: the adaptation of their eyes to the dark, the presence of clouds or haze, the time of year, and the presence of light pollution. General Information . ... After completing this activity, students should have a better understanding of the practical processes for dealing with the light pollution problem and with other environmental and societal issues. << previous page | ...

Conclusions . The origin of the structure in the Universe is one of the most fundamental problems in astrophysics. ... Observe stars in process of formation ? Learn about control of the formation of stars and ISM ? Discover seeds of structure we now observe ? Observe raw materials of structure at early epochs ? Observer first Galaxies . Previous slide . Back to first slide . ...