... A further spin off of this project is that more reliable pointing information for all exposures is provided. In 1995 the ST-ECF introduced, along with the CADC, the re-calibration on-the-fly (OTF) of archived HST exposures. ... By correlating the HST Mission Schedule and the time-tagged engineering telemetry data stream downloaded from HST it is possible to reconstruct with great accuracy the pointing sequence of any given scientific observation. ... taken within the same HST visit . ...

... Chapter 2: Association Keywords . ... Calibration Products . ... Looking at the ASN_MTYP and EXPNAME keywords for each extension of the n48o06020_jif.fits file, we see... n48o06020_jif.fits [1], ASN_MTYP = EXP-TARG EXPNAME = N48O06G9J n48o06020_jif.fits [2], ASN_MTYP = EXP-TARG EXPNAME = N48O06GAJ n48o06020_jif.fits [3], ASN_MTYP = EXP-BCK1 EXPNAME = N48O06GBJ n48o06020_jif.fits [4], ASN_MTYP = EXP-BCK1 EXPNAME = N48O06GCJ n48o06020_jif.fits [5], ...

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... Constructing and Reducing Sets of HST Observations Using Accurate Spacecraft Pointing Information A. Micol and B. Pirenne Space Telescope -- European Coordinating Facility, ESA/ESO, Garching D­85748, Germany P. Bristow 1 Space Telescope -- European Coordinating Facility Abstract. ... All this is possible thanks to the reliable HST pointing information provided by the jitter files which are a product of the Observatory Monitoring System software at STScI. ... The current format jitter files contain: ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... 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. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado€о Solar . ... Spotting Scopes . ...

The FITS archive & data processing pipelines . ... The archived data are broad band images (BBI) and long-slit spectra (LSS) plus their associated template and calibration files. The data in HFA can enter into the HyperLeda processing pipeline and the results can be freely downloaded. ... Definition of the file system (structure of the archive) . ... The coordinate systems must be updated when the data (pixel data, other keywords, related tables) are altered (eg. rebinning of the image). ...

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Largely automated science processing (working title: phoenix) Reinhard Hanuschik, 2012-05-10 Pre-conditions · · · all associations ( ABs ) already done, by standard QC workflow all associations point to certified and archived master calibrations (the ones to virtual calibrations can't be processed so they need to be filtered) we use only selected ... Issues: · which products do we select for ingestion? ... VM, standard vs. non-standard setups no processing: o o ECHELLE, SLICER (why not?) ...

... This thread contains a step-by-step recipe to extract MOS spectra of a point-like source observed in Imaging mode and to create associated response matrices, starting from a calibrated, concatenated event list (either produced with emproc or available as PPS product; here it has the assumed file name MOS.fits ). ... The users should note that the SAS metatask xmmselect allows them to interactively define source and background regions (via ds9) and to run backscale on the fly. ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

Program: PLATE Purpose: snips raw data from tape(s) to custom plate Category: IRAS Author: Do Kester File: plate.src Keywords: INSTRUME= give instrument identification [] a combination of observation mode SURVEY SPLINE AO PO FLASH UNKNOWN and band number 12 25 60 100 LRS BPHF 1 2 3 4 ( 2 letters suffice ) PO is an alias for AO; AOs, POs and UNKNOWNs are collectively known as pointed observations. ... Only scan(snip)s which pertain to the same area and instrument can be stored in the same IRDS. ...

... 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 amo