... The file names' construction . The flight (m) stage's file set . ... the orbital data used for the flight operation monthly (m) long-term planning, . ... The orbital calculations are based on the initial orbital data determined by KIAM RAN using the orbital radio- measurement treatment. The determined initial orbital data are presented as a state vector (satellite position and velocity) in the J2000 reference. ... Accept the file with extension '.bgr', where the Moscow time (MT=UT+3h) is used. ...

... Installed filters (User selectable): R, I, B, Red + ND2, Clear, U, V (all filters are Johnson-Cousins) . ... For a plot of all filters, click here . 0 - Bessell R . ... The only filter requiring a focus offset is the ND2 + R filter which will be measured on the sky. ... The red filter attached to the ND2 in position 6 is not the same as the Bessell R. Number 6 is an RG610 red glass filter ( Rolyn 65.1355 ) for the 610 nm cut-on. ... Focus . ... Guider Mechanical Controller (filter and focus) . ...

XmTel is intended for interactive remote telescope operation. ... The command set provides for several basic functions that enable slewing, pointing, fine guiding, and control of the telescope focus, reticle, and fans. ... XmTel is actively being used and developed with the Celestron Corrected Dall-Kirkham C20 telescope. ... Some NexStar features of the C20 -- the fan, temperature reading, and focus control -- are not presently available on other Celestron telescopes. ...

S AO's New Generation Multipurpose CCD Controller . ... In the 1990?s considerable advances have been made in the world over technology of manufacturing scientific image detectors with high photoelectric characteristics, which called for the creation of new complex array controllers to operate such detectors. ... very low readout noise; . ... Quite a few teams of researchers and engineers are ingaged in the development of controllers. ... development, SPICE modelling and design of modules; . ...

Fasti is an innovative design for infrared detector control. ... to use largely accepted standards as boundaries, as a PCI bus, a parallel interface or a serial, and to use few of them . ... The building blocks of Fasti are: . ... the serial bus for controlling housekeeping devices (temperature and pressure sensors or motor controllers) and programming data acquisition . ... Though not so fast, and lacking some forms of data integrity check, this bus is so widely used to be nearly unavoidable. ...

... Classes . ... gTime Class Reference . This class implements time calculations. ... gTime (double ai_jDays=0) . ... gTime (const gTime &timeSrc) . ... Set the time value of the time object to the julian day of year, day. ... operator= (const gTime &timeSrc) . ... Returns the time GMT value in Julian days. ... Returns the time_t value of the gTime Object. ... Returns a gTime object setted with the actual machine time. ... gTime Object assigned with real machine time. double gTime::getGmtTm . ...

... Up: Data Processing Systems . ... One of SIM's key issues is to develop a new algorithm for calculation of fringe parameters. Not only astrometric results need that new algorithm, but also real-time fringe tracking requires a new method to calculate phase and visibility fast and accurately. The formulas for the phasor algorithms for fringe estimation are presented. ... The advantages of phasor algorithms for application of fast fringe tracking and on-board data compression are discussed. ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

... An explanation of the general VLT control system architecture is given. Two generations of ESO VLT CCD Controller systems (ACE and FIERA) are described, and a comparison between them is presented, considering both the architecture and the performances. 1) The ESO VLT Control System . ... two . ... To achieve the readout requirements of the new generation CCD devices the LCU was replaced with a SPARC CPU, connected to the CCD Electronics through a 150 MBytes/sec full duplex optical fiber link. ...

Instrument . ... Scanning TV-sensor with on-board data recording system for global coverage mode . ... recording, direct transmission . ... IR-radiometer for global coverage and direct data transmission modes . ... The scientific instrument package onboard the Meteor-3 spacecraft provides for regular instant acquisition of images of cloudiness and Earth surface in visible and infra-red bands, data on air temperature and humidity, sea surface temperature and clouds temperature. ...

... Two high school students from Texas and Louisiana are the winners of the 2012 Priscilla and Bart Bok Awards for their astronomy projects presented at the Intel Science and Engineering Fair in Pittsburgh, Pennsylvania in May. The awards were presented on May 18 by the Astronomical Society of the Pacific (ASP) in partnership with the American Astronomical Society (AAS), supported by funding from the National Science Foundation (NSF). ... The Bok prize is named for Bart and Priscilla Bok. ...

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

MATSYM - symbolic matrix processor . ... To use the program you will need a MAT file (liked CIR file: "User manual for CIRSYM program") of your system. ... In first string of MAT file enter any text you want to be the title of your system. ... Starting from string 2 (if is not comments - "*") enter the system element name, incident row and column and, optionally, its value. ... To generate a solution, run MATSYM.exe and enter "system_file_name.CIR" or click on the "ENTER" (in "MAT" case). ...

Computer Ephemeris . ... Content of the Computer Ephemeris is the same as content of Soviet Astronomical Almanac (Ezhegodnik), but fully original algorithms and computer methods of calculations were used. Your requests for Computer Ephemeris for years before 2014 and your comments on its contents please direct to the author charlie@mail.univ.kiev.ua . ... Keywords: Computer Ephemerides, Computer Ephemeris, Computer Almanac, Computer Calendar. ...

... The operators will be explained as they are used. The general notion to keep in mind is that any combination of these operators results in a 2- D affine coordinate transformation in the TF plane, which may be represented using the homogeneous coordinates often used in computer graphicsfoley. ... S _t_c,f_c = g_t_c,f_c,(_t) | ... We denote a time shift to the position , with an operator that has a multiplicative law of composition : (Table 1). ... Note that these two operators do not commute. ...

... A hundred years later, a handful of Tunguska-sized asteroids have been spotted by telescopes, but most remain unseen. The asteroid designated 2008 TC3 , which made the news on October 6th before colliding with the Earth on October 7th was too small to constitute a part of the "Earth impact hazard". ... 2008 TC3, for example, finally exploded in the atmosphere above Sudan . ... Wednesday, 8 October 2008 01:15 . International Year of Astronomy, Ireland National Node . ...

... 9 Sept 2008 DiFX WS @ Max Planck Institute for Radioastronomy Bonn correlator centre · MK IV operations ­ GMVA observations at 83 GHz · 13 stations · 512 Mbit/s · 10 days per year ­ MPI-based observations · e.g. observations above 100 GHz ­ EVN observations with special requirements ­ Geodetic VLBI (~50%) · Handled by partner BKG and Uni Bonn 9 Sept 2008 DiFX WS @ Max Planck Institute for ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The on-line diagnostics of the SW channel characteristics operative through back-scattering ionospheric sounding (BSS) is based on adiabatic relations of diagnostic signal characteristics and channel in operation under ionospheric parameter variations (Kurkin V.I , Nosov V.E., Ponomartchuk S.N.et. al. SW radiochannel operative dignostics. ...

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

ERS -1,2 SAR . ... SIR-C/X SAR . ... 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. ... The Spaceborne Imaging Radar-C/X-band Synthetic Radar (SIR-C/X-SAR), carried in the cargo bay of the Space Shuttle Endeavour in April and October of 1994, simultaneously recorded SAR data at three wavelengths (L-, C-, and X-bands; 23.5, 5.8, and 3.1 cm, respectively). ...