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241. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 6: Observation Logs > 6.1 Observation Log Files . ... 6.1.1 Jitter File Contents . Observation Log Files , also known as jitter files, record pointing, jitter, and other Pointing Control System (PCS) data taken during an HST observation. ... A detailed description of the observation log files can be found online: http://www.stsci.edu/hst/observatory/pointing/obslog/OL_1.html . ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch62.html -- 140.4 Кб -- 12.04.2016
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242. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 5: HST File Names > 5.4 Associations . ... The ACS, NICMOS, STIS, and WFC3 calibration pipelines sometimes produce single calibrated images from associations of many exposures. ... In this case, the original set of exposures constitutes the association, and the mosaic is the association product . ... In practice, STIS stores the exposures belonging to associations differently than the other instruments. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch55.html -- 119.2 Кб -- 12.04.2016
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243. Introduction to HST Data Handbook v8.0
... 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. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch54.html -- 121.4 Кб -- 12.04.2016
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244. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 5: HST File Names > 5.2 Rootnames . ... Rootnames of HST data files follow the naming convention defined in Table 5.1 . ... i - Wide Field Camera 3 . ... l - Cosmic Origins Spectrograph . ... There is a unique association between program ID and proposal ID. ... m - Merged real time and tape recorded . n - Retransmitted merged real time and tape recorded . ... r - Real time (not recorded) . ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch53.html -- 124.6 Кб -- 12.04.2016
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245. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 5: HST File Names > 5.1 File Name Format . ... Datasets retrieved from the HDA, as described in Chapter 2 , consist of multiple files in Multi-Extension FITS format, each with a name that looks like this: . ... In order to use PyRAF / IRAF / STSDAS tasks to work with data from the instruments FOC, FOS, GHRS, HSP, WF/PC-1, and WFPC2 1 you will want to convert these waivered FITS files into GEIS format. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch52.html -- 122.8 Кб -- 12.04.2016
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246. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 4: IRAF Primer > 4.5 Accessing IRAF, PyRAF, and STSDAS Software . ... 4.5.1 Accessing the Synphot Data Set . ... http://stsdas.stsci.edu/irafx/ . ... This handbook sometimes refers to the synphot data set, which must be available in order to run tasks in the STSDAS synphot package (see Section 3.4.4 ). ... the Synphot Data User?s Guide , which includes instructions on how to set the different HST keywords...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch46.html -- 122.7 Кб -- 12.04.2016
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247. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 4: IRAF Primer > 4.4 PyRAF Capabilities . ... PyRAF is a Python package that runs IRAF tasks from Python. ... pyraf ? ... When using CL scripts and encountering an error, PyRAF reports the line number in the CL script where the error occurred. ... Interactively, there is no noticeable difference from the IRAF CL, but in a Python script you would preface the name of any IRAF task with ? ... For example: ? ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch45.html -- 127.1 Кб -- 12.04.2016
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248. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 4: IRAF Primer > 4.3 IRAF Basics . ... 4.3.2 Running Tasks . ... You can get online help with any IRAF task or package by using the help command, 1 which takes as an argument the task or package name about which you want help. ... When working with IRAF (OIF) or STSDAS (GEIS) images, you need only specify the header file name?the tasks will automatically use the binary data file when ґnecessary. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch44.html -- 188.8 Кб -- 12.04.2016
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249. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 4: IRAF Primer > 4.2 Initiating IRAF . ... How to set up your IRAF working environment. ... Create an IRAF root directory. ... Users generally name their IRAF home directory ? ... also referred to as your IRAF root directory) and put it in their user home directory (i.e., the default directory that you are in when you log in to the system). ... that tells IRAF where to find your IRAF home directory. ...
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250. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 4: IRAF Primer > 4.1 IRAF Overview . 4.1 . IRAF Overview . The Image Reduction and Analysis Facility ( IRAF ), developed by the National Optical Astronomy Observatories (NOAO), forms the basis of the Space Telescope Science Data Analysis System ( STSDAS ). ... Most astronomers will already be familiar with IRAF , but we provide this tutorial for HST observers who are beginners in IRAF . ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch42.html -- 119.5 Кб -- 12.04.2016
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251. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 3: Analyzing HST Data > 3.7 References . ... References . 3.7.1 Available from STScI . 3.7.2 Available from NOAO . ... From the STSDAS Web page, . ... STSDAS User?s Guide , version 1.3, September 1994. STSDAS Site Manager?s Installation Guide and Reference , version 3.9, November 2008. Synphot User?s Guide , version 5.0, November 2005. Synphot Data User?s Guide , version 1.2, June 2008. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch38.html -- 131.8 Кб -- 12.04.2016
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252. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 3: Analyzing HST Data > 3.6 Analyzing HST Spectra . ... Analyzing HST Spectra . ... 3.6.4 General Tasks for Spectra . ... Some of these tasks operate directly on HST data files created by the pipeline. ... Calibrated spectra emerge from the pipeline either as two-dimensional spectral images ( x2d STIS files) or as one-dimensional spectra stored in tabular form ( x1d files for COS and STIS). ... Task . ...
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253. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 3: Analyzing HST Data > 3.5 Displaying HST Spectra . ... This section describes how to plot the most common HST spectra (COS, FOS, GHRS, and STIS) in IRAF / STSDAS for a quick first look. ... Both COS and STIS data files retrieved from the HDA can contain spectra in two different forms: as spectral images in FITS IMAGE extensions or as extracted spectra in FITS BINTABLE extensions. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch36.html -- 146.6 Кб -- 12.04.2016
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254. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 3: Analyzing HST Data > 3.4 Analyzing HST Images . ... This section describes how to determine the orientation of an HST image and the RA and Dec of any pixel or source within it, including: . Tasks that supply positional information about HST images. ... Task . ... This new task will be announced as soon as a version has been successfully tested with data from the current imaging instruments on HST . ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch35.html -- 244.2 Кб -- 12.04.2016
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255. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 3: Analyzing HST Data > 3.3 Displaying HST Images . ... Displaying HST Images . 3.3.1 The Display Task . ... How to display images in IRAF using the display task . ... The most general IRAF task for displaying image data is the display task, the best choice for a first look at HST imaging data. ... Make sure that IRAF has been set to expect the size of the image you wish to display. ... cl> images . ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch34.html -- 140.7 Кб -- 12.04.2016
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256. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 3: Analyzing HST Data > 3.2 Navigating STSDAS . ... For example, tasks used in the calibration process can be found in the hst_calib package, and tasks used for image display and plotting can be found in the graphics package. ... FITS and GEIS input/output for HST data (images and tables). graphics . ... For Images . Both IRAF and STSDAS contain a large number of tasks that work with HST images. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch33.html -- 209.8 Кб -- 12.04.2016
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257. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 3: Analyzing HST Data > 3.1 Analysis Options for HST Data . ... Analysis Options for HST Data . 3.1.1 IRAF/STSDAS . 3.1.2 PyRAF . 3.1.3 Python . ... STSDAS is an IRAF package developed by STScI for the reduction and analysis of HST data. ... Since PyRAF is so highly compatible with the IRAF CL, virtually all of the examples shown in this handbook will work the same for PyRAF . ...
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258. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 2: HST File Formats > 2.3 GEIS File Format . ... All HST images in GEIS format consist of two components: a header file (with suffix ending in ?h?), and a separate binary data file (with suffix ending in ?d?) . ... The three-letter identifier (e.g., d0h) that follows the rootname of a GEIS format HST data file (see Chapter 5 for more on HST file names) has often been called an ?extension? in the past. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch24.html -- 176.1 Кб -- 12.04.2016
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259. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 2: HST File Formats > 2.2 Multi-Extension FITS File Format . ... 2.2.1 Working with Multi-Extension FITS Images in IRAF . 2.2.2 Working with FITS Table Extensions . ... Appending Image Extensions to FITS Files . ... If the output file already exists, the task will append the new table to the end of the existing file; the APPEND option necessary for appending FITS image extensions is not required. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch23.html -- 187.5 Кб -- 12.04.2016
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260. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 2: HST File Formats > 2.1 HST Data Files . ... Data from WFPC2, ACS, COS, NICMOS, STIS, and WFC3 are made available to observers as files in Multi-Extension FITS (MEF) format, which is directly readable by most PyRAF / IRAF / STSDAS tasks. ... Therefore, for purposes of archiving and file transfer, GEIS data are converted to a modified FITS format known as ?waivered FITS.? ... waivered FITS & MEF 1 . ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_ch22.html -- 148.4 Кб -- 12.04.2016
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