... For many ATMs, having a good ray trace program on hand is pretty valuable. ... http://www.willbell.com . ... It is a slick Windows package with great graphics, but my most recent machine (Win95 OSR2) now encounters many error messages. ... OSLO LT : This is the freeware Windows version of OSLO - it is limited to 12 surfaces, but is otherwise amazing. ... KDP : This is another powerful, freeware Windows raytrace package. ... ZEMAX : This is yet another powerful, Windows raytrace package. ...

Next: Three-dimensional Data Analysis in IRAF and ZODIAC+ . ... A data analysis system has been developed at SRON, which has been designed to allow rigorous control of the quality of its processed data products. ... This means recording all parameters of all steps which lead to the establishment of the final data products (Figure 1 ). ... Figure: A processing pipeline is a sequence of tasks with several input/output files and parameters, which pass data from one task to the next. ...

... The instrument modes and arms should be indicated and described, and the keywords that distinguish between different modes should be indicated (usually INS.MODE is used if it is a mode and OCS keys are used in case it is related to an arm). ... Raw frames The format of the raw frames for each mode and arm should be described. ... The design should be checked on pre-processing or processing, which involves products only (no trigger via raw frames). ... QC parameters. ...

Monte Carlo Methods for Including Calibration Uncertainties in Model Fitting Analyses Jeremy J. Drakea , Peter Ratzlaffa , Vinay Kashyapa , Richard Edgara , Rima Izemb , Diab Jeriusa , Herman ... University, Cambridge, MA 02138 MIT Kavli Institute for Astrophysics and Space Research, Cambridge, MA 02139 b c SUMMARY · Instrument response uncertainties almost universally ignored in astrophysical X-ray ... Limiting accuracy of Chandra ACIS reached in spectra with 10 4 counts. ...

GCVS Research Group: . Recent publications . Kazarovets E.V., Samus N.N., Durlevich O.V., Kireeva N.N., Pastukhova E.N., The 81st Name-List of Variable Stars. ... Kazarovets E.V., Samus N.N., Durlevich O.V., Kireeva N.N., Pastukhova E.N., The 80th Name-List of Variable Stars. ... Samus N.N., Kazarovets E.V., Kireeva N.N., Pastukhova E.N., Durlevich O.V. General Catalogue of Variable Stars: Current status and new Name-lists Odessa Astronomical Publications, 2010, V. 23, p. 102-105. ...

. Home . Research . Publications . Recipes . CV . Thesis . Links . About me . Recipes . VFTS 822: A candidate Herbig B[e] star at low metallicity . Photometry . Spectra . Pre-main-sequence Accretion in the Low Metallicity Galactic Star-forming Region Sh 2-284 . Physical parameters and results . Py . H-alpha and u-band accretion rates in the Lagoon Nebula M8 . Photometry of CTTS . Dervied parameters of CTTS . Lagoon Nebula VPHAS+ image (large file!) . Py .

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...

... SMIS : Space Monitoring Information Support laboratory . Russia's Weather : State Meteorological Center Weather Forecast . Space Weather service : ACE real time solar wind data and simple geomagnetic activity forecast. ... World Fire Web : Space Research Institute (IKI) node . Sputnik : Joint project of SRC Planeta, Rosgidromet and Space Research Institute (IKI) . ... Today's Space Weather : Presented by the Space Environment Center . ... Back to the Space Research Institute Home Page ...

All the objects in the database, galaxies, stars, clusters, ..., are indexed with their pgc number. Historically, the pgc numbering was created to unify the names of the galaxies when the database project started in 1983. ... Still, all the objects in the database (about 5 millions) have a pgc number which is used as a unique identification across the different tables. This number should not be used to build a name , since it would not be recognized by any database, including HyperLeda. ...

... Staff . ... Friends of Arcetri . ... Arcetri designs innovative superconductor microwave filters for the Sardinia Ratio Telescope . ... A new microwave component based on HTS technology has been presented in a recent issue of the Journal of Astronomical Instrumentation, produced by World Scientific Publishing Company, in the article тАЬ A high temperature superconductor microwave filter working in C-band for the Sardinia Radio Telescope тАЭ by Pietro Bolli and collaborators (Fig.1). ...

LIF Marseille and Institute for Information Transmission Problems, Moscow, Russia. E-mail: alexander.shen AT lif.univ-mrs.fr, sasha.shen AT gmail.com . ... Kolmogorov complexity, algorithmic information theory . Teaching (mathematics, computer science): Independent University of Moscow, Moscow State University, Moscow mathematical school No 57. ... Kolmogorov memorial conference, Moscow. IEEE Conference on Computational Complexity, Aarhus (Denmark), ("Kolmogorov day") . ...

The basic problems of the Laboratory are connected with researches of dynamics of minor planets and comets. ... THE ORBIT IMPROVEMENT of minor planets from optical and radar observations, . the utilization of minor planet observations for THE DETERMINATION OF ORIENTATION OF STAR CATALOGUES and DETERMINATION OF MASSES OF MINOR PLANETS BY DYNAMICAL METHOD, . THE ESTIMATION OF COLLISION PROBABILITY of minor planets with other bodies and with each other, . ...

Fortran 90 properties already in CF77 . ... Only the old form (fix form) of the source code is available. ... LOGICAL Default KIND number = 8 INTEGER Default int7 int15 KIND number = 6 1 2 digits = 46 7 15 radix = 2 2 2 range = 13 2 4 huge = 70368744177663 127 32767 bit_size = 46 8 16 INTEGER int31 int46 int64 KIND number = 4 6 8 digits = 31 46 63 radix = 2 2 2 range = 9 13 18 huge = 2147483647 70368744177663 9223372036854775807 bit_size = 32 46 46 REAL half Default,single double KIND ...

Scale-heights of the Galactic disk subsytems with different ages and metallicities . V.Marsakov & Yu. ... It is based on the fact, that all stars cross the disk plane several times during their Galactic orbital period. ... We have used our representative sample of nearby disk F2-G2 stars Marsakov & Shevelev (1995) in which fundamental stellar parameters was determined on the basis of published date on uvby-photometry, proper motion and radial velocities. ... Marsakov V.A., Shevelev Yu.G. Bull. ...

... Telescopes . ... The spectrograph is installed in the Nasmyth focus of the BTA telescope, the equivalent focal length is 186 m (F/31). ... The preslit device unit is marked by number 3. ... Fig. ... slit unit of the MSS, 4.1 ? ... The spectrograph slit unit consists of a mirror that redirects the light beam from the Z axis and from the calibration path at an angle of 65њ to the axis of the telescope focus into the slit, the order separation filter, the block of the slit and the shutter (Item 4 in...

AUTOMATIC STATION OF ECOLOGICAL CONTROL . ... BASIC PERFORMANCE SPECIFICATION . STATE OF ASEC DEVELOPMENT . AIR POLLUTION MONITORING . ... OF MEASURING CHANNELS . ... unit of measurement . ... Nitric oxide (NO) concentration, . ... power measured by ASEC . ... In particular, RSC Energia finalizes its work on measurement systems designed to measure dust, volumetric activity of radioactive gases and aerosols and other environmental parameters. ... Official WEB-site of S.P.Korolev RSC Energia . ...

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

The International RadioAstron Mission ­ a Earth-Space Interferometer with orbit up to 350 000 km The RadioAstron Project is designed by the Astro Space Center of the P.N. Lebedev Physical Institute of the Russian Academy of Science, and the S.A. Lavochkin Federal Research & Production Association, Roscosmos in cooperation with numerous Russian and international organizations. ... Parameters of the Orbit Period (variable) Major semi-axis 7 - 10 days. 189 000 km. ... From 10 000 to 70 000 km. ...

... Project page . ... Project workpage . Turbulence in the Multiphase Interstellar Medium . Project I | ... Project highlight | ... Towards simulating turbulence with adaptive meshes . ... A. Kritsuk, P. Padoan, M. Norman . ... A. Kritsuk M. Norman . ... A. Kritsuk, M. Norman, P. Padoan . astro-ph/0411626 | ... P. Padoan, A. Kritsuk, M. Norman, A. Nordlund . ... Introducing Enzo, an AMR Cosmology Application . B. O'Shea, G. Bryan, J. Bordner, M. Norman, T. Abel, R. Harkness, A. Kritsuk . ...