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221. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 9: WFC3 Data Analysis . ... WFC3 Data Analysis . ... 9.3 Astrometry . ... 9.4 Spectroscopy . 9.4.1 Using the WFC3 Grisms . 9.4.2 Pipeline Calibration . 9.4.3 Slitless Spectroscopy Data and Dithering . 9.4.4 Spectroscopy with the WFC3 G280 Grism . 9.4.5 Spectroscopy with the WFC3 IR Grisms . 9.4.6 Extracting and Calibrating Slitless Spectra . 9.4.7 Reducing WFC3 grism data . 9.4.8 Accuracy of Slitless Spectra Wavelength and Flux Calibration . ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter9_analysis1.html -- 118.9 Кб -- 12.04.2016
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222. WFC3 Data Handbook
... WFC3 Data Handbook > Acknowledgments . Acknowledgments . Current Members of the WFC3 Team . Sylvia Baggett . ... Michael Fall . ... Knox Long . ... Former Members of the WFC3 Team . ... Wayne Baggett . Howard Bond . ... Howard Bushouse . ... Michael Dulude . ... Chris Long . ... Massimo Robberto . Michael Robinson . Massimo Stiavelli . ... The editor thanks Senior Technical Editor, Susan Rose, for her invaluable contributions to the editing and production of this Data Handbook. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/acknowledgements.html -- 147.1 Кб -- 12.04.2016
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223. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 10: Spatial Scan Data > 10.4 References . 10.4 . References . ... McCullough, P. & MacKenty, J., WFC3 ISR 2012-08 , Considerations for using Spatial Scans with WFC3 . Petro, L. & Wheeler, T., WFC3 ISR 2006-06 New IR Detector Sample Times . ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter10_scan5.html -- 115.8 Кб -- 12.04.2016
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224. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 10: Spatial Scan Data > 10.3 UVIS Scanned Images . 10.3 . UVIS Scanned Images . For UVIS data, use the flt.fits which contains all the nominal instrumental calibrations (bias, dark, and flat) just as for staring-mode observations. At press time, we are not aware of any publications detailing a custom analysis of spatially-scanned UVIS data; such analyses are under development by the investigators of HST programs 12588/13464, 12685, 12879/13344, 12909, etc. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter10_scan4.html -- 115.3 Кб -- 12.04.2016
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225. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 10: Spatial Scan Data > 10.2 IR Scanned Data . 10.2 . IR Scanned Data . ... The next step is to calculate differences of the Nth readout and the (N-1)th readout to form a set of images, each one representing the accumulated charge in each pixel in the given time interval. ... Additional tips on data analysis of spatially-scanned IR spectroscopy are in WFC3-2012-08 . Table 10.1: Spatial Scan Keywords in the _spt.fits files . ... Spatial Scan Info . ...
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226. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 10: Spatial Scan Data > 10.1 Analysis of Scanned Data . 10.1 . Analysis of Scanned Data . ... In this section, we describe custom analyses for A) IR spectroscopy, especially of exoplanet transits or eclipses, and B) UVIS and IR imaging. UVIS scanned spectroscopy is not recommended. To begin their own custom analysis, we recommend observers use: . ima.fits files for IR data . flt.fits files for UVIS data. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter10_scan2.html -- 116.7 Кб -- 12.04.2016
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227. WFC3 Data Handbook
. WFC3 Data Handbook V. 4.0 . help@stsci.edu . WFC3 Data Handbook > Chapter 10: Spatial Scan Data . Chapter 10: . Spatial Scan Data . 10.1 Analysis of Scanned Data . 10.2 IR Scanned Data . 10.2.1 IR Scanned Spectra . 10.3 UVIS Scanned Images . 10.4 References . WFC3 Data Handbook > Chapter 10: Spatial Scan Data .
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228. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Preface > Typographic Conventions . Typographic Conventions . Visual Cues . Comments . To help you understand the material in this Data Handbook, we will use a few consistent typographic conventions. ... The following typographic cues are used: . ... SMALL CAPS identifies a header keyword. ALL CAPS identifies a table column. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/intro_preface2.html -- 123.2 Кб -- 12.04.2016
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229. WFC3 Data Handbook
... WFC3 Data Handbook > Preface > Typographic Conventions . ... Visual Cues . Comments . To help you understand the material in this Data Handbook, we will use a few consistent typographic conventions. ... bold words identify an STSDAS , IRAF , or PyRAF task or package name. ? ... SMALL CAPS identifies a header keyword. ALL CAPS identifies a table column. ... Occasional side comments point out three types of information, each identified by an icon in the left margin. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/wfc3_preface3.html -- 122.2 Кб -- 12.04.2016
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230. WFC3 Data Handbook
... WFC3 Data Handbook > Preface > Handbook Structure . Handbook Structure . ... Chapter 2 - WFC3 Data Structure describes WFC3 data products as would be obtained from the HDA, file name conventions, and auxiliary files. ... Chapter 5 - WFC3 UVIS Error Sources provides users with all the currently known error sources in the data for the UVIS detectors. ... Chapter 7 - WFC3 IR Error Sources provides users with all the currently known error sources in the data for the IR detector. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/wfc3_preface2.html -- 124.3 Кб -- 12.04.2016
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231. WFC3 Data Handbook
... WFC3 Data Handbook > Preface . Preface . How to Use this Handbook . This handbook is designed to provide users with an introduction on how to understand, manipulate, and analyze data from the Wide Field Camera 3 (WFC3), which was installed on-board the Hubble Space Telescope ( HST ) during the 2009 Servicing Mission 4 (SM4). ... For detailed information about the instrument?s capabilities and design, and how to plan observations, users should refer to the WFC3 Instrument Handbook . ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/wfc3_preface1.html -- 116.0 Кб -- 12.04.2016
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232. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 6: Charge Transfer Efficiency (CTE) > 6.6 References . ... http://www.stsci.edu/hst/wfc3/ins_performance/CTE/ANDERSON_UVIS_POSTFLASH_EFFICACY.pdf . ... Mackenty, J., & Smith, L., 2012, CTE White Paper. http://www.stsci.edu/hst/wfc3/ins_performance/CTE/CTE_White_Paper.pdf . ... S. Baggett, C. Gosmeyer, and K. Noeske, WFC3/UVIS Charge Transfer Efficiency 2009 -2015 http://www.stsci.edu/hst/wfc3/documents/ISRs/WFC3-2015-03.pdf . ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter6_CTE7.html -- 118.3 Кб -- 12.04.2016
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233. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 6: Charge Transfer Efficiency (CTE) > 6.5 Dealing With CTE Losses In WFC3/UVIS Images . ... Dealing With CTE Losses In WFC3/UVIS Images . ... Another way to minimize CTE losses is to ensure that the background has at least 12 electrons per pixel. ... In images where the predicted background is less than 12 electrons, using the POST-FLASH option is recommended to add enough electrons to get the background counts up to this level. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter6_CTE6.html -- 118.6 Кб -- 12.04.2016
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234. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 6: Charge Transfer Efficiency (CTE) > 6.4 Empirical Corrections . 6.4 . Empirical Corrections . Empirical corrections provide an alternate way to correct for CTE losses of observations of point sources. ... The most recent empirical corrections are described in WFC3 ISR 2015-03 , which also provides an analysis of the long term behavior of the UVIS CTE, using observations of star clusters. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter6_CTE5.html -- 116.5 Кб -- 12.04.2016
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235. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 6: Charge Transfer Efficiency (CTE) > 6.3 The Pixel-Based Model . ... The previous section made reference to the pixel-based model of CTE losses. ... The basic model assumes that each column contains a number of charge traps distributed evenly among its pixels from j=1 to j=2048. ... In the near future, the WFC3/UVIS team plans to use overscan and charge-injection data to construct a rough model of the specific trap distribution within in each column. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter6_CTE4.html -- 123.3 Кб -- 12.04.2016
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236. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 6: Charge Transfer Efficiency (CTE) > 6.2 The Nature Of CTE Losses . ... The Nature Of CTE Losses . ... These traps can temporarily detain individual electrons. ... The dip between 12 and 30 electrons shows the "sweet spot" background level, where the charge transfer is maximized at low background levels. ... We see that a charge packet that contains just one electron will encounter 20 traps on its 2000-pixel journey to the serial register, if there is no background. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter6_CTE3.html -- 121.9 Кб -- 12.04.2016
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237. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 6: Charge Transfer Efficiency (CTE) > 6.1 CTE Losses And Background . ... CTE Losses And Background . ACS/WFC has spent more than twice as long in space as WFC3/UVIS (12 years versus 5 years as of Cycle 21), yet in some ways the CTE losses in WFC3/UVIS have become more severe than those in ACS/WFC. ... At first it was unclear why this was the case, but we have been able to trace it to the basic fact that CTE losses are worse when the background is extremely low. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter6_CTE2.html -- 117.1 Кб -- 12.04.2016
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238. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 6: Charge Transfer Efficiency (CTE) . ... 6.5 Dealing With CTE Losses In WFC3/UVIS Images . ... This chapter describes the various aspects of CTE losses in the WFC3/UVIS detector. The first section provides a general overview and compares CTE losses in WFC3/UVIS to those in ACS/WFC. The next section discusses the nature of WFC3/UVIS losses in more detail, focusing on how the mini-channel makes it possible to minimize CTE losses with a small addition of background. ...
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239. Introduction to HST Data Handbook v8.0
... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks . ... HST Data Handbooks . ... Technical Editors: Susan Rose & Jim Younger . ... HST Introduction Editors: Brittany Shaw, Jessica Kim Quijano, . ... HST Introduction Technical Editors: Susan Rose & Jim Younger . ... HST Introduction Editor: Diane Karakla . ... Susan Rose, Technical Editor, HST Introduction. ... Bahram Mobasher, Chief Editor, HST Data Handbook . ... 2011, ?Introduction to the HST Data Handbooks?, ...
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240. 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 > 6.3 Using Observation Logs . ... 6.3.1 Guiding Mode . 6.3.2 Guide Star Acquisition Failure . ... 6.3.4 High Jitter . ... Unless requested, all observations will be scheduled with FINE LOCK guiding, which may be one or two guide stars (dominant and roll). The spacecraft may roll slightly during an observation if only one guide star is acquired. ... Dominant Guide Star ID . ...
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