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... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 5: HST File Names > 5.3 Suffixes of Files Common to All Instruments . ... Support files (suffix spt ) contain information about the observation and engineering data from the instrument and spacecraft recorded at the time of the observation. ... Observation Logs (suffix ji* or cm* , aka ?obslogs?) are FITS files that contain information describing how the HST spacecraft behaved during a given observation. ...

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): . ...

... These plots show spectra (either count rates or ux) and the background count rates. omgrismplotplot can be used to display a single spectrum or multiple spectra, produced by omgrism. The input FITS les must contain net count rates, background count rates and the associated errors. The spectra must follow a regular binning scheme (i.e. equispaced wavelength bins). omgrismplot allows the user to input the device type (e.g. Xwindow, Postscript, ...) for output. ... 7 Output Files 1. ...

... The Observatory Monitoring System (OMS) is part of the Hubble Space Telescope (HST) ground system at the Space Telescope Science Institute. OMS receives as inputs a file of commands for the HST and files of engineering telemetry data generated by the HST in response to those commands. This paper will discuss how, from its inputs, OMS software provides spacecraft jitter files during observations commanded in the input. ... The jitter image file will be archived for the user. ...

... 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. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... Great Refractor . ... Image Credit: B.F. Nutting, A. Sonrel . ... One thing that seems to be missing from this image is a finder telescope. ... The image is credited this way: . ... Annals of the Astronomical Observatory of Harvard College / History and Description of the Astronomical Observatory of Harvard College vol. ...

... 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. ...

... 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. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

... Comets and Asteroids . ... Space Flight . ... By admin October 14, 2010 Posted in: Comets and Asteroids . ... No one on Earth noticed this cataclysm until January 2010, almost a year later, when the LINEAR survey discovered something odd , initially thought to be a comet. ... For details of observations at this time, see Crash of the Asteroids by Sinead McNicholl in the March 2010 issue of Astronotes . Colliding asteroid P/2010 A2 as seen by Rosetta (Image credit: ESA) . ...

. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."