... 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