The pipeline calibrated data are not flux calibrated and the data are in units of Data Numbers (DN). However, a flux calibration is supplied in the header keywords. ... where m is in the STMAG system which is based on a spectrum with constant flux per unit wavelength set to roughly match the Johnson system at V. The more conventional systems are based on Vega's spectrum. Table 8.2 was generated using SYNPHOT to provide rough conversions from STMAG to the Johnson UBVRI and Cousins RI systems. ...

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• Absolute SpectroPhotometric Standards
• HSP Data Handbook
• Calibration Observations and Reference Data

... 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 regions can be specified via the outunit parameter in either of two projection-plane coordinate systems, namely `detxy' and `xy'. ... The first choice corresponds to columns DETX and DETY of the standard XMM EPIC event list, the second to columns X and Y . ... This information is obtained from keywords in the header of the supplied event list. ... If outunit is given as `detxy' and if the supplied source list is a standard XMM EPIC product then in principle the event list is unnecessary. ...

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• Exposure corrections - introduction:
• Standard (Johnson) Magnitudes and Colours
• Standard Magnitudes and Colours

... Standard Commands . ... TwistedActor.Actor is core code for writing an actor: an instrument control computer (ICC) or hub-based script that does something useful. This manual describes the standard commands and keywords that any actor based on TwistedActor.Actor will support. All actors based on TwistedActor typically support the following standard commands (plus additional device-specific commands documented in that actor's manual). ... Connect one or more devices (if not already connected). ...

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• TclActor
• MILT Description
• twistedActor

... We present a proposed standard for data dictionaries associated with catalogs being accessed through the Astrophysics Data System (ADS) Mosaic Catalog Service. Each catalog made available for searching must have a data dictionary, which consists of a set of specified keywords describing format, content and location of data. ... There are two keywords in the Table Data Dictionary which indicate to the server software that the corresponding column contains special attributes. ...

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• Automated Photometric Calibration Software For IRAF
• The ESO VLT CCD Detectors Software
• Practical Applications of a Relational Database of FITS Keywords

Next: Non-standard keywords Up: FITS keywords Previous: FITS keywords . ... The first group is translated into special MIDAS descriptors for the data structure in question. The conversion for image files is given in Table . The START descriptor of a MIDAS image refers to the first pixel and is computed from the values CRVAL and CRPIX for the reference pixel as given in the FITS header. ... Table: Name translation between standard FITS keywords and MIDAS descriptors. ...

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• Loading the Telescope and Instrument Specifications
• Using a Standard Star
• Non-standard keywords

... Science . ... Science Users Information > Observing with ESO Telescopes > Observing Tools and Services > Standard Stars Catalogues > Standard Star Catalogue Search Tool . ... Publications with ESO Data . ... ESO Data . ... This tool searches the standard star catalogues for standards that are within dX airmasses of the target at a given LST. ... In this case put the LST when the target was observed in the TargetLST box as before, and put the LST of the standard star observation in the StdObs LST box...

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• ESO - Standard Stars Catalogues
• FORS Sec Std and Abs Phot Project
• Data Quality Control and Instrument Modeling

Next: *imcalc* - Obtain a Up: Calibration Previous: Exposure Map . Background maps are provided by the standard processing for all ROSAT and Einstein instruments. For the PSPC and IPC these are in three standard bands: soft, hard, and broad (Table 6.2). ... N.B.: ROSAT PSPC background maps in SASS 5-6 or higher are generated by smoothing a source-subtracted, exposure corrected image (see the ROSAT Data Products Guide). ... imcalc* - Obtain a background subtracted image for ROSAT PSPC Data . ...

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• The AstroStat Slog standard procedure
• The AstroStat Slog Blog Archive On the history and use of some standard
• The AstroStat Slog standard processing

... There are compelling reasons for the pulsar community to utilise a standard data storage format. For example, standardisation of file formats significantly decreases the amount of effort required to integrate new instruments into the analysis chain. ... Accordingly, we have defined PSRFITS as a standard FITS-based format for pulsar data files. ... For example, the first line of Processing History HDU contains information about the data acquisition program and the initial structure of the file. ...

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• World Coordinate Systems (WCS) in FITS
• VLA Standard Bands.
• imspec

... 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

Next: Buffer Manipulation Up: Programming in C Previous: Compiler Options . Listed below are nearly all the ANSI C standard library functions. The header file where related definitions are stored are given. These may vary on some systems so check local reference manuals. ... More info can be obtained from online man calls or reference manuals. Buffer Manipulation . Character Classification and Conversion . ... File Manipulation . ... Wed Sep 14 10:06:31 BST 1994 ...

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