NASA Mars Orbiter . ... The Mars Global Surveyor mission is designed as a rapid, low-cost recovery of the Mars Observer mission objectives. The science objectives involve high resolution imaging of the surface, studies of the topography and gravity, the role of water and dust on the surface and in the atmosphere of Mars, the weather and climate of Mars, the composition of the surface and atmosphere, and the existence and evolution of the Martian magnetic field. ...

... HST . ... Data . ... HST Overview . Overview . ... Instruments . ... Instrument Handbook . COS Data Handbook . ... For more information about the use of this FP-POS option see Section 5.8.2 of the COS Instrument Handbook. ... COS has the advantage of a fairly large aperture so that there are only small aperture losses ( see Section 5.1.9 of the COS IHB). ... The available spectroscopic resolving powers (R) available to observers with COS are listed in Table 5.1 of the COS Instrument Handbook. ...

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): . ...

The Wind spacecraft. ... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... For additional details and updates, see the home page of the "Wind" mission. Exploration" home page (index) Glossary . ...

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MARS-96 . ROBOTIC SPACECRAFT MISSION TO MARS. ... The main scientific objectives of this mission are to investigate the evolution of Mars, that is, of its atmosphere, its surface, and its interior. ... abundance of minor components in the atmosphere (H2O, CO, O3 , etc), their variation and vertical distribution, and searches for regions with higher humidity; . ... Plasma: . ... the 3D distribution function; the ion and energy composition of plasma (near Mars and during interplanetary cruise); . ...

... Deimos: A Small Martian Moon . 2.09.2001 . Mars has two tiny moons, Phobos and Deimos. ... In fact, Deimos is one of the smallest known moons in the Solar System measuring only nine miles across. ... Classified by observers as Soft Gamma Repeaters (SGRs) and Anomalous X-ray Pulsars (AXPs), these cosmic powerhouses are likely city-sized, spinning, highly-magnetized neutron stars. ... How Big Is 2001 KX76 . ... AFGL 2591: A Massive Star Acts Up . ... Young star AFGL 2591 is putting on a show. ...

... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . Australia Telescope Compact Array . ... Information & tools for observers . ... Virtual Radio Interferometer . ... The ratio above is called the resolution of the telescope. ... An interferometer works most efficiently, in the sense of returning the most information about the intensity and size of the source being observed, for a source whose size is comparable with the telescope's resolution. ...

Magnetic Fields around Radio Galaxies Robert Laing (ESO) Laing et al. ... 2008) Negligible depolarization and 2 rotation Almost all Faraday effects must be due to foreground material How to fit depolarization caused by foreground Faraday rotation Complex polarization Rotation measure Integrate over a beam Observed RM for 0 2 rotation and depolarization Faraday rotation and depolarization 5.5 arcsec FWHM Faraday effects at high resolution FWHM = 1.5 ...

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 . ...

... We can help students grasp the significance of Hubble's extremely keen eye, and learn a bit about angles and math in the process, with the following in-class activity. ... Looking through binoculars or telescopes allows us to magnify a small section of the sky. To measure sizes or distances in that small section, astronomers divide a degree into 60 smaller pieces called arcminutes, and further subdivide minutes into 60 smaller sections called arcseconds. ... 30 feet = . ... 36 seconds . ...

... GIVE A GIFT . ... News . Observing . ... New gravity map gives best view yet inside Mars . The map will be helpful for future Mars exploration because better knowledge of the planet s gravity anomalies helps mission controllers insert spacecraft more precisely into orbit about Mars. ... The new gravity map will be helpful for future Mars exploration because better knowledge of the planet s gravity anomalies helps mission controllers insert spacecraft more precisely into orbit about Mars. ...

... Over the last decade the uninterrupted, high-resolution coverage of the Sun both from the excellent range of telescopes aboard many spacecraft and from ground-based instruments has led to a wealth of observations of small-scale dynamic events observed from the chromosphere to the transition region and corona. ... SoHO observations have further characterized many transient features, such as bi-directional jets, blinkers, coronal jets, and bright points. ...

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: High-mass Star Formation at High-Angular Resolution . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... ESO Data Access Policy . ... This project aims to obtain a better understanding of high-mass star formation by performing a comparative study of sites of high-mass star formation that display SiO maser (radio laser) emission. ...

... The TESIS is a set of solar imaging instruments developed by the Lebedev Physical Institute of the Russian Academy of Science, and launched aboard the Russian spacecraft CORONAS-PHOTON on January 30, 2009. The main goal of the TESIS is to provide complex observations of solar active phenomena from the transition region to the inner and outer solar corona with high spatial, spectral and temporal resolution in the EUV and Soft X-ray spectral bands. ... Solar activity hits a new low . ...

... A concrete application is displayed step by step by the command: TUTORIAL/CLOUD . The data used for this example are CaII absorption features observed in the spectrum of SN 1986g in NGC 5128 (observer: S. d'Odorico, instrument: CASPEC). ... Sampling is 0.05? per pixel and the measured instrumental resolution, 17km/s. The final cloud model consists of 12 absorption doublets. The corresponding image includes both components K and H and has been convolved by a gaussian PSF of 0.22? (17km/s) FWHM. ...

... Table of Contents - Index - PS reprint - PDF reprint . ... All RXTE telemetry will be archived in a hierarchical database consisting entirely of FITS Binary Tables. We describe an interactive tool, the XTE Data Finder (XDF). ... Our basic design contains a three level hierarchy: Master Index, Subsystem Index, and Data Table. ... The Master Index acts as an observation catalog with references to Subsystem Indices, while the latter contain configuration information and references to the Data Tables. ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . The Mars Pathfinder and Global Surveyor Missions! ... Listed Since July 15, 1998 . ... http://mpfwww.jpl.nasa.gov/ . ... Additional Information . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Events . ... Occultations by Kuiper Belt Objects . ... Thursday, Jun 11, 2009 at 8:00 PM . A stellar occultation occurs when a solar system body passes between a star and an observer. ... The atmospheres of the major planets, three of the four planetary ring systems, and numerous asteroids have been probed with stellar occultations. ... With stellar occultation data we can also probe for close companions and possible tenuous atmospheres. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...