That part of the FSP1 time interval, which corresponds to the magnetic conjugations of the any couple of the 4 considered spacecraft: INTERBALL TAIL PROBE, INTERBALL AURORAL PROBE (or MAGION 5), POLAR (NASA), and GEOTAIL (NASA, ISAS). The value of the relative geocentric angular distance between magnetic field line footprints is considered during FSP3 situation selection. The mentioned angular distance value less then 5 deg is used as a criterion of the FSP3 situation. ...

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... The orbits as follows are considered: INTERBALL Tail Probe (IB_TAIL) & Auroral Probe (IB_AUR), GEOTAIL (NASA/ISAS), and POLAR (NASA). ... The situation investigation aim is to select the following favourable spatial positions (FSP) : . ... FSP3 : That part of the FSP1 & FSP2 time intervals, which corresponds to the magnetic conjugations of the any couple of the considered spacecraft. ... The polar diagram plot . ... The geocentric distance (GCD) of the 4 spacecraft as a function of the time. ...

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• The FSP3 criteria and plot description
• The Favourable Spatial Position Criteria
• The Favourable Spatial Position

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): . ...

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Next: The Stopping Radius in Up: ``Ecology'' of Magnetic Rotators Previous: The Environment of the . Now we consider qualitatively the effect of the electromagnetic field of a magnetic rotator on the accreting plasma. ... What is important is that both relativistic particles and magnetic dipole radiation will transfer their momentum and hence exert pressure on the accreting plasma. ... 2) The pressure of the accreting plasma is high enough to permit the plasma to enter the light cylinder . ...

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• Ejector-propeller hysteresis
• Evolution of Magnetic Rotators in Non-circular Orbits
• Effect of the Magnetic Field

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

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• Linear polarization: wavelength dependence

Lunar Orbiter 1 . ... The Lunar Orbiter 1 spacecraft was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the Surveyor and Apollo missions. ... The spacecraft was placed in a cislunar trajectory and injected into an elliptical lunar orbit for data acquisition. ... An 80-millimeter lens system was used to obtain Medium-Resolution (MR) photos, and a 610-millimeter lens system was used for High-Resolution (HR) photos. ...

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• Lunar Orbiter 2
• Mariner 10
• Sakigake

... This coming July 4, the Deep Impact spaceship will reach its target - Comet Tempel 1 -- and release an impactor over five times the mass of a person toward its surface. ... Similar in size and grand design to our own Milky Way, spiral galaxy NGC 3370 lies about 100 million light-years away toward the constellation Leo. ... Stars, Galaxies, and Comet Tempel 1 . ... The dark band of dust that obscures the mid-section of the Sombrero Galaxy in optical light actually glows brightly in infrared light. ...

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... 2005 May 16 . Deep Impact Spacecraft Hurtles Toward Comet . ... JPL , NASA . ... This coming July 4, the Deep Impact spaceship will reach its target - Comet Tempel 1 -- and release an impactor over five times the mass of a person toward its surface. ... The remaining crater may tell how Tempel 1 is constructed. If, for example, Comet Tempel 1 is an extremely loose pile of debris, the impactor may leave little or no discernable crater. ... About APOD | ... NASA Official: Jay Norris. ...

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• APOD: 2011 January 28 - NanoSail-D
• APOD: 2000 June 20 - Ganymede: The Largest Moon in the Solar System
• APOD: 2004 December 20 - Titan Surmised

... Space flight . ... Space Hotel . ... The program of deployment of small orbital station (SOS) consisting of a family of spacecrafts and module-spacecrafts represents a consecutive realization of flight scenarios with consecutive building up of functions. ... Scenario 1 - the regular and revised spacecrafts of class "Soyuz" - TMSC and MNMSC (MNMSC-cargo, MNMSC-MR) are used, pls. see fig fig.8 . ... The terms of transition to this scenario are determined by terms of readiness of one or another module....

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... Archives . ... Nov 7th, 2007| 11:57 am | Posted by hlee . Today?s arxiv-stat email included papers by Poetscher and Leeb, who have been working on post model selection inference. ... How you know your data are from chi-square distribution, or gamma distribution? (this is a model selection problem with nested models.) ... stat.TH:0702703] Can one estimate the conditional distribution of post-model-selection estimators? by H. Leeb and B. M. P\?{o}tscher . ... Chandra Blog . ...

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• The AstroStat Slog confidence region
• The AstroStat Slog Errors
• The AstroStat Slog coverage

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Magnetic (red squares) and non-magnetic (black points) Herbig Ae/Be stars plotted in a Hertzsprung-Russell diagram. ... Using the projected rotational velocities measured at the surface of the stars, we have calculated the angular momentum of the sample and plotted it as a function of age. We have then compared the angular momentum and the v sin i distributions of the magnetic to the non-magnetic HAeBe stars. ...

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• Astrodynamics 101

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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. NASA's Dawn spacecraft obtained this image of the giant asteroid Vesta with its framing camera July 9, 2011. It was taken from a distance of about 26,000 miles (41,000 kilometers) away from Vesta, which is also considered a protoplanet because it is a large body that almost became a planet. Photo credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

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• Do the magnetic fields of the planets affect spacecraft during flybys? |
• STEREO spacecraft delivers new images of the solar wind | Astronomy.com

... Meta Index / Home Page attfilter performs exposure-specific attitude data filtering and Good-Time-Interval (GTI) creation driven by a single boolean selection expression. The task generates a single GTI table whose rows represent time intervals during which the spacecraft attitude did not deviate from a given reference attitude by more than a specified tolerance limit. ... Compute the median spacecraft attitude within the exposure time window. ... Astronomical position angle of spacecraft . ...

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• Quadrant specific frame quality dependent livetime

... 8, ``Celestial Mechanics'', 2002 Investigation of stability of NEAs orbital resonance motions by numerical methods L. E. Bykova Tomsk State University, Tomsk, Russia The problem of orbital stability of resonance NearґEarth asteroids (NEAs) is considered. Most of NEAs have multiple close approaches to the inner maґ jor planets. ... The technique of the investigation of NEAs orbital stability has been develґ oped by author on the basis of the construction of possible motion domains (R) of asteroids. ...

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• (Untitled)
• Conference WPLTN-2012 | Conference page
• ENGAMPLE

... The procedure of radiometer signal integration can be considered as a sort of reducing dimension of the initial sampling space, where the samples are the result of analog-to-digital conversion. ... The probability distribution of the signal and spikes is completely known. ... The quality of the considered algorithm could be also illustrated by Figure 2 . ... One could see the considered adaptive algorithm is preferable even by low degree of compression, because all spikes have been depressed. ...

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... Solar System . ... Comets and Asteroids . ... Vision of Vesta: a dark feature with a diameter of approximately 100 kim near the asteroid's equator can be seen in this image from Dawn (Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA) . Between Mars and Jupiter lies the Asteroid Belt. ... The Dawn space probe is expected to go into orbit around Vesta on 16 July, from there it will return some detailed images and other data, staying at the asteroid for about a year before setting off to visit Ceres. ...

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• Rings Around an Asteroid | Astronotes
• Mars | Astronotes - Part 5
• Concept Spacecraft | Astronotes

... Dale A. Gardner . NASA Astronaut (deceased) . ... NASA EXPERIENCE: б? Gardner was selected as an Astronaut Candidate by NASA in January 1978, reporting to the Johnson Space Center in July 1978.б? In August 1979, he completed a one-year training and evaluation period, making him eligible for assignment as a mission specialist astronaut .б? He subsequently served as the Astronaut Project Manager for the flight software in the shuttle onboard computers leading up to the first ...

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• Astronaut Bio: Shannon Lucid (02/2012)
• NASA - Astronaut Biographies
• Astronaut Bio: James S. Voss (10/2005)

... Magnetic field experiment on Vega - 1 and 2 spacecraft. ... Two spacecrafts, Vega-1 and Vega-2 have been launched aboard Proton rockets from Baykonour on 15 and 21 December 1984, respectively. ... For magnetic field measurement two-sensor fluxgate system was used. ... During the cruise phase from Earth to Venus both Vega-1 and Vega-2 spacecrafts had one-axis orientation i.e. Bx of magnetometer was directed to the Sun, By and Bz axes were rotated around Bx-axis. ... Vega-1 magnetic data for 1984 . ...

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• IZMIRAN: Laboratory for Physics and modeling of the ionosphere - publications -

... In our numerical experiments we mainly considered two sets of simulated data provided by R. Hanisch, namely the Star Cluster and the Elliptical Galaxy 2 (Hanisch 1993). Fig. 1 shows the relative error (the inverse of the signal-to-noise ratio) achieved using the Tikhonov method in the restoration of the above mentioned images. ... As a result, Tikhonov regularization takes about sec on the initial mesh and sec on an extended mesh (IBM RISC 6000/560 with ESSL 2). ...

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• CSPICE Routines: SCTIKS_C
• Description of the Reconstruction Methods
• CSPICE Routines: OSCELT_C