... SPICE System Documentation . Comprehensive set of SPICE System documentation including tutorials, subroutines and data formats descriptions, etc. Other related home pages: . Navigation and Ancillary Information Facility at JPL . MARS-96 Space Mission . ... Please, forward comments and questions about information on this page and all descending NAIF and M96 SPICE implementation pages to NAIF group at IKI . naif@arc.iki.rssi.ru . ...

... The DCF staff perform a check of the transmission using a Reed-Solomon error checking routine. ... Missing data packets and the results of the Reed-Solomon check are written to the data quality accounting capsule (QAC). ... d1h file, there is a corresponding data point in the quality file. For each good data value, the corresponding point in the quality file is zero. ... If the data failed the Reed-Solomon error check, the corresponding data point in the quality file was set to one. ...

... The spacecraft of Magion type have been selected as the subsatellites of the Interball project: Magion-4 (C2-X) for the Tail Probe and Magion-5 (C2-A) for the Auroral Probe. ... Magion-4 was produced in the Czech Republic in collaboratrion with Russia, Ukraine, Hungary, Austria and has onboard scientific instruments and sensors designed and built in Czech Republic, Russia, Poland, Hungary, Romania, Bulgaria and Slovak Republic. ... Plasma flow detector VDP-S (Czech Republic, Russia) . ...

... 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...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

WPLTN Technical Workshop . ... WPLTN-2012) . ... of the International Scientific Technical Conference WPLTN-2012 . ... Having an opinion that the collocation of various space geodesy measurement technologies has a fundamental role in increasing the accuracy of fundamental and applied positioning, navigation and timing provision, the International Scientific Technical Conference WPLTN-2012 has come to the following conclusions: 2.1. ... Web-page . ... Resolution of the conference WPLTN-2012 . ...

... Science . ... Science Users Information > Science Publications > Science Announcements . ... Observing Facilities . ... Observing with ESO Telescopes . ... Phase 1 Proposals . ... Published: 03 Jul 2015 . ... Recent developments of the Adaptive Optics Facility ( AOF ) project and the use of a laser comb for improved wavelength calibration have been announced. The 4 Laser Guide Star Facility ( 4LGSF ) achieved first light with the first of the laser guide star units on VLT UT4; see Announcement . ...

... The software systems are described following the forward and backward data flow to/from the satellite: starting from the Observation Proposal reception and archiving, the long term observation scheduling up to the detailed weekly planning and telecommands sequence uplinking, and vice versa the scientific and housekeeping raw telemetry acquisition and archiving, quick look data analysis, data reformatting and distribution as a Final Observation Tape to the Observation Proposal PI. ...

... The experience of determination of the link between radio sources and dynamical reference frames is presented. To obtain this connection we used a series of very long baseline interferometry (VLBI) observations of the spacecraft Phobos-2 and angularly nearby quasars. ... The dynamical reference frame is determined by equator and equinox of these ephemerides. ... References . ... The relative orientation of the radio and dynamical reference frames can be described by a sequence of three rotations . ...

... ISC Kosmotras . ... Dnepr launch record 17 August 2011. ... On 9 September 2009, a contract was signed between ISC Kosmotras and SSTL for the launch of Nigeria-2 and NigeriaSat- у satellites on Dnepr rocket as part of 2010 cluster launch from Yasny Launch Base. According to information provided by SSTL the NigeriaSat-2 satellite is being built for the Nigerian government (NASRDA) as a follow-on to the NigeriaSat-1 satellite that was launched in 2003. ... E-mail: info@kosmotras.ru . ...

Next: THE SCHED INPUT FILES Up: INFORMATION AND ADVICE ON Previous: Configuration Studies Contents . ... The NAIF software package from JPL is called to read the spice files and calculate positions. The NAIF software significantly increases the size of a SCHED distribution, and the satellite tracking capability is unlikely to be needed outside the AOC. ... To use the tracking capability, a Satellite Initialization section needs to be included in the main input file. ...

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? ...

Spacecraft Simulator (SPSIM) 4.0 Hassan Siddiqui and Jorgo Bakker January 12, 2005 This is a paper version of the SPSIM help. ... SPSIM forms part of the XMM-Newton Science Simulator SciSim for the XMM-Newton satellite. ... 4 3.8 exposure . ... 4 3.9.1 attitude . ... 2 Usage The following command illustrates how to execute SPSIM from the command line: spsim --exposureTime 10000 > spsim.out In this example, exposureTime is the total exposure time, during which the Spacecraft e ects must be calculated. ...

... In spite of the fact that the orbit assumes a zero gravity (the scientists count on it by growing super-clean crystals and other materials impossible on the earth), in fact, none spacecraft provides such conditions. ... This question is answered by the device developed by SSAU scientists - Micro-acceleration Compensation Space System (MCSS). ... Then, the computer will give commands to the magnets that compensate micro-accelerations. ... Tags: 'photon-m4' mcss . ... SAMARA STATE AEROSPACE UNIVERSITY...

FAMILIES AND SCATTERING . ... An important observation on the orbital distribution of irregular satellites is that satellite families at Saturn, Uranus and Neptune are not well defined. At Jupiter one finds 3-4 reasonably compact retrograde families, corresponding to each of the previously known retrograde irregulars and one prograde family. ... That is contrary to the current doctrine that very little has happened to these irregular satellite families following their collisional formation. ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

YAMAL-200 COMMUNICATIONS SATELLITE . Spacecraft Yamal-100, Yamal-200 were developed by the Corporation based on the S.P.Korolev RSC Energia-designed Multi-purpose Satellite Bus under a contract with Gascom within the framework of the Russian Federal SpaceProgram. ... Yamal-200 satellites were launched on November 24, 2003 at 9 hours 22 minutes, Moscow Time. Proton-K launch vehicle put the orbital module into its reference orbit. ... Orbit . ... Official WEB-site of S.P.Korolev RSC Energia . ...

NASA Press Release Text - June 24, 1996 GALILEO READY FOR CLOSE FLYBY OF JUPITER'S BIGGEST MOON Now residing in orbit around Jupiter, NASA's Galileo spacecraft is primed for its first close flyby of Jupiter's largest moon, Ganymede, at 2:29 a.m. EDT on June 27, 1996. ... In the days just before and after the Ganymede flyby, Galileo's other studies will include a search for auroral activity on Jupiter's nightside and observations of other Jovian moons: Io, Europa and Callisto. ...

Arecibo radar observations help fly NASA spacecraft . Arecibo Radar Observations of 103P/Hartley . The Arecibo planetary radar system was used to make images of comet 103P/Hartley, the target of the EPOXI spacecraft mission . ... Model . This pair of mosiacs shows twenty radar delay-Doppler images (left) and model images (right) of the nucleus on (from top to bottom) Oct 25-27 and 29-31. ... COMET 103P/HARTLEY . ... radar images and radar doppler spectra for Comet 103P/Hartley on . ...

Prognoz satellites magnetometer observation database . This page presents data of the magnetic field measurements in the outer magnetosphere and in the solar wind made by Prognoz and Interball-Tail satellites. Magnetic field measurements on the Prognoz satellites were carried out by I ZMIRAN 's Space Magnetic Research Laboratory ( SMRL ) in 1977-1984. ... Prognoz-7 and -9 provide observations at a later stage of the ISEE mission. ... Link to Prognoz-6 data . ... Link to Interball-T data . ...