... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

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• APO Job Announcements
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... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... MeadeтАЩs new LX70 Series offers high-quality German equatorially mounted telescopes with slow-motion controls and heavy-duty steel tripods. ... For crisp wide-field observing and imaging, few optical designs match the performance of a true triple-element apochromatic refractor. ... Meade Standard Field Tripod #07020. ...

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• Meade Standard Field Tripod - Tripods and Piers - Accessories - Products
• Telescopes - Products
• Products

... Public . Science . ... Science Users Information > Observing with ESO Telescopes > Observing Tools and Services > Standard Stars Catalogues . ... Observing with ESO Telescopes . ... Publications with ESO Data . ... Large Programmes . ... ESO/GTC Programmes . Public Surveys Programmes . ... Phase 1 Proposals . ... Public Surveys Phase 2 . ... Science Data Products Forum . ... ESO Data . ... ESO Data Access Policy . ... Below follows a non-exhaustive list of on-line standard star catalogues. ...

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• ESO - Standard Star Catalogue Search Tool
• Data Flow System overview
• ESO - Archives and Catalogues

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

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The Arecibo telescope is a versatile instrument with multiple receivers, backend processors, and telescope scanning modes. ... Observing modes are implemented at Arecibo through the Control Interface Module for Arecibo (CIMA). ... In this case, the observer is encouraged to submit a proposal for a new observing mode. ... Proposals for new observing modes will be evaluated by a technical review panel consisting of Arecibo technical and scientific staff. ... Flow chart. ...

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• Standard On
• Current Arecibo Observing Modes
• STANDARDS OF REST & REDSHIFT CORRECTIONS

... The material in "From Stargazers to Starships" meets several important requirements of the national standards. Pages cited below are from National Science Education Standards National Academy Press, Washington 1995. ... For example: the sections on astronomy not only describe calendars and sundials (including their construction), but also the astronomy of the ancient Greeks, including two different ways in which ancient Greeks estimated the distance to the Moon. ...

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FGS Instrument Handbook for Cycle 24 . ... Fine Guidance Sensor Instrument Handbook for Cycle 24 > Appendix B: FGS1r PerformanceSummary > B.2 Angular Resolution Test . ... At the time of the test, the predicted angular separation of the components was 0.085" (Franz and Wasserman, private communication). ... By rolling the HST in 6 increments, the projected separation along the X axis varied from the predicted angular resolution limit of FGS1r (~6 mas) to the resolution limit of FGS3 (~20 mas). ...

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• Space Telescope Imaging Spectrograph Instrument Handbook
• ACS Instrument Handbook for Cycle 20
• Fine Guidance Sensor Data Handbook

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

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... User Guide ] Task: uvmodel Purpose: Add, subtract, etc, a model from a uv data set. Categories: uv analysis UVMODEL is a MIRIAD task that modifies a visibility dataset by combining or replacing it a model. ... Key: vis Input visibility data file. No default Key: model Input model cube. ... Key: line The visibility linetype to use, in the standard form, viz: type,nchan,start,width,step Generally if there is an input model, this defaults to the linetype parameters used to construct the map. ...

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• Standard Setup Files
• VLA Standard Bands.
• PmWiki | PmWiki / WikiGroup

Next: Reduction procedure Up: Extinction and transformation Previous: Strategy . Standard stars can be included in the extinction solution, if one is careful. The problem is that there are usually appreciable ``conformity errors'' due to mismatch between the instrumental and the standard passbands [ 16 ]. ... Thus, it is wrong to assume that the transformation between the instrumental system and the standard system is exact, even if there were no measurement error in either system [ 1 ]. ...

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• Using a Standard Star
• Selection criteria
• Instrument Description: CASPEC

XMM­Newton CCF Release Note XMM­CCF­REL­120 OM Photometry Bing Chen July 5, 2002 1 CCF components Name of CCF VALDATE List of Blocks changed CAL VERSION XSCS flag OM COLORTRANS 0007 2000­01­01T00:00:00 COLORMAG No 2 Changes The zero­points and color­transformations for optical filters are set based on observations of several hundreds standard stars. ... We can see that the simulated UV color­transformation based on this new CCF can represent the observations. ...

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• http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0112-1-0.ps.gz
• RGS Related CAL Routines
• Introduction

Next: The Distributed Analysis System Hierarchy (DASH) for the SUBARU Telescope . ... The REMOT project objective is to develop and validate a generic approach to allow remote control of scientific experiments and facilities that require real time operation and multimedia information feedback. ... These have been partly implemented to perform a set of demonstrations, showing the feasibility of the design. ... Integrating the control system of the Galileo telescope in the REMOT project is simple: . ...

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• ETCs and Observations Simulation at the VLT
• Real-Time Linux Driving a Spectrometer
• Observing Control at the UKIRT

SITE 2010 Comprehensive Characterization of Astronomical Sites Kislovodsk, Russia, 49 October 2010 Conference Summary Marc S. Sarazin*a a European Southern Observatory, Garching, Germany Abstract The main topics discussed during the Site 2010 conference are outlined and the outcome is described. Keywords: Astronomical Site testing, precipitable water vapor, atmospheric turbulence, cloudiness, seeing 1. ... Site surveys for National observatory projects in China, India, and Iran benefit from this. ...

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• Methods and instruments to measure/monitor major site properties

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Earth Satellites . ... Leonid meteors seen from 13 km altitude aboard an aircraft during the 1999 Leonids Multi-Instrument Aircraft Campaign (Leonid-MAC). Comet Tempel-Tuttle provides the cometary debris for the Leonid meteor shower. ... Every 17-19 November Earth crosses Tempel-TuttleтАЩs orbit and the Leonids become visible. With clear, dark skies observers may see 10 to 15 Leonid meteors every hour on those mornings. ...

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... OEM OPTICAL COMPONENTS . ... Home Products OEM Optical Components . ... Objective, Plan Achromatic, 4 X 0.12, BF . ... Objective, Flatfield Achromatic, 20 X 0.40, BF . ... Objective, Flatfield Achromatic, 30 X 0.90, Iris, H2O Imm., ... Objective, Flatfield Achromatic, 60 X 1.00-0.70, Oil, Iris, BF . ... Objective, Flatfield Achromatic, 100 X 1.25, Oil, BF . ... Q-Plan™ Achromat Objective, 2.5 X 0.08, BF . ... Q-Plan™ Achromat Objective, 60 X 0.85, dry, BF . ... Eyepiece, Widefield, 10X, F.N. 18 . ...

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• OEM Components
• POLAM-P
• Laboroscopes

... NICS will be the only infrared instrument for the first light of the TNG; as a consequence, we decided to incorporate a sufficient degree of operation flexibility by providing the instrument with six different observing modes, three aimed at imaging and three at spectroscopy: . ... It will be possible to use the narrow band filters as order sorters; this will allow to perform high resolution long-slit spectroscopy in the wavelength ranges covered by the available narrow band filters. ...

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• IBIS: SolarNet Access
• Procedures for Observations
• Relevant Standards - Apache HTTP Server

... Fit the ring around the equator and then change its inclination from 0 degrees (equatorial orbit used by geosynchronous satellites) to 28.5 degrees (space shuttle orbit) to 51.6 degrees (space station orbit) to 90 degrees (polar orbit used by spy satellites). by Rob Landis, Space Telescope Science Institute . ... With so many satellites now in orbit, it is likely that you have seen an artificial satellite zipping across the night sky. ... http://www.amsat.org/amsat/ftpsoft.html . ...

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• ASP: Black Holes to Blackboards: Building Universes in the Classroom

... Observing Control at the UKIRT A. Bridger and G. Wright Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, United Kingdom F. Economou Joint Astronomy Centre, 660 North Aohoku Place, University Park, Hilo, HI 96720 Abstract. ... Using an o#­line preparation system to create these has significantly improved observing e#ciency, as also has the automatic, on­line data reduction system in use by one of the main instruments. ... The Observation Sequencer. ... Observing Control at the UKIRT 295 3.3. ...

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• http://www.stecf.org/conferences/adass/adassVII/reprints/shopbellp.ps.gz
• http://www.stecf.org/conferences/adass/adassVII/reprints/walterr.ps.gz
• http://www.stecf.org/conferences/adass/adassVII/reprints/lindep.ps.gz

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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... Posts tagged ?standard candle? ... In addition to Bayesian methodologies, like this week?s astro-ph, studies on characterizing empirical spatial distributions of voids and galaxies frequently appear, which I believe can be enriched further with the ideas from stochastic geometry and spatial statistics. Click for what was appeared in arXiv this week. ... 1 Comment . ... If you find any problems of viewing the slog, please notify me. ... Entries RSS . ... Entries (RSS) and Comments (RSS) . ...

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• Period Determination
• The AstroStat Slog Blog Archive On the history and use of some standard
• ISDN References