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2005 HST Calibration Workshop Webcasts
Friday Oct 28, 2005
2005 HST Calibration Workshop
Roelof de Jong (Space Telescope Science Institute)
NICMOS Status I will give an overview of the current status of NICMOS. I will highlight some of the changes that have occurred now NICMOS has been working at a different temperature over the last three years after the cryo-cooler was installed. Impr ...
2005 HST Calibration Workshop
Bahram Mobasher (Space Telescope Science Institute)
A Study of NICMOS Non-linearity Observations of standard stars with NICMOS grism (G096), when compared with the same standards taken with STIS (G750L), show a disagreement over the wavelength range 0.8 to 1 micron. Further comparison with ACS F850LP ...
2005 HST Calibration Workshop
Rodger Thompson (n/a)
NICMOS Calibration Challenges in the Ultra Deep Field NICMOS observations in the Hubble Ultra Deep Field provide particular challenges. Effects that are either subtle or negligible in other observations can become prominent effects when observing ve ...
2005 HST Calibration Workshop
Eddie Bergeron (Space Telescope Science Institute)
Temperature and Bias Variation and Measurement in the NICMOS Detectors The NICMOS detectors on HST are extremely sensitive to changes in operating temperature and supply voltage. These temperature and voltage variations affect quantum efficiency and ...
2005 HST Calibration Workshop
Dean Hines (Space Telescope Science Institute)
Polarimetry with NICMOS NICMOS cameras 1 and 2 (43 and 76 mas/pixel, respectively) each carry a set of three polarizing elements to provide high sensitivity observations of linearly polarized light. The polarizers are bandpass limited and provide mi ...
2005 HST Calibration Workshop
Ronald Gilliland (Space Telescope Science Institute)
Differential NICMOS Spectrophotometry at High Signal-to-Noise Transiting extrasolar planets present an opportunity for probing atmospheric conditions and constituents by taking advantage of different apparent radii, hence transit depth as a function ...
2005 HST Calibration Workshop
Eddie Bergeron  (Space Telescope Science Institute)
NIC3 FOM Dithered Observations of the Orion Nebula The HST Treasury program 10246 used the ACS WFC to survey a large portion of the Orion nebula cluster. In parallel with the ACS, NIC3 observations in F110W and F160W were also taken. In order to cov ...
2005 HST Calibration Workshop
James Rhoads (n/a)
HST Observations in support of JWST Calibration The James Webb Space Telescope will be NASA's flagship observatory in the next decade, and will be a worthy successor to the Hubble and Spitzer Space Telescopes. I will outline plans for HST observatio ...
Thursday Oct 27, 2005
2005 HST Calibration Workshop
Kenneth Sembach (Space Telescope Science Institute)
ACS Calibration Status The Advanced Camera for Surveys is producing spectacular science results that require careful instrument calibration. This talk will provide an overview of recent calibration highlights and calibration plans for Cycle 14. It w ...
2005 HST Calibration Workshop
Jason Rhodes (Jet Propulsion Laboratory)
Modeling and Correcting the Time-Dependent ACS PSF for Weak Lensing The shapes of background galaxies are distorted by foreground dark matter in a process known as weak gravitational lensing. These distortions can be used to map out the foreground m ...
2005 HST Calibration Workshop
Marco Sirianni (n/a)
The photometric calibration of ACS During more than three years of on-orbit operation ACS has proven to be a very stable and repeatable instrument. Several calibration programs have been devoted to directly or indirectly improve the photometric cali ...
2005 HST Calibration Workshop
Robert O'Dell (Vanderbilt University)
Calibration of the ACS Emission-Line Filters On-orbit calibration of the ACS emission-line filters F502N, F658N, and F660N have been made using a bright portion of the Orion Nebula as a reference source. This calibration is important because the con ...
2005 HST Calibration Workshop
Martin Kuemmel (n/a)
Slitless spectroscopy with the Advanced Camera for Surveys The Advanced Camera for Surveys (ACS) enables low resolution slitless spectroscopic imaging in the three channels. The most-used mode is grism imaging with the WFC (40A/pixel), and the same ...
2005 HST Calibration Workshop
Max Mutchler (Space Telescope Science Institute)
Pipeline calibrations of ACS data Our strategies for collecting ACS calibration data, and converting it into reference files for use in the the pipeline, have been continually evolving since the instrument was installed during Hubble Servicing Missi ...
2005 HST Calibration Workshop
Gerhardt Meurer (n/a)
Selection and characterization of "interesting" grism spectra The G800L grism used in conjunction with the ACS WFC allows the detection of numerous emission line and other "interesting" sources in relatively shallow exposures of a few orbits. Howeve ...
2005 HST Calibration Workshop
Jay Anderson (n/a)
Distortion in the WFC Camera The material in this talk will come largely from the ISR I am putting together on the distortion solution for the WFC camera. Distortion in the WFC comes from three primary sources: (1) the off-axis optics of the telesco ...
2005 HST Calibration Workshop
Jennifer Mack (Ron Gilliland presenting) (Space Telescope Science Institute)
ACS Flatfield Update and New SBC L-flats We present an overview of the flatfields currently in use by the calibration pipeline. A recent comparison with sky flats obtained via observations of the bright Earth limb indicate that the CCD flats are acc ...
2005 HST Calibration Workshop
John Biretta (Space Telescope Science Institute)
WFPC2 Status and Calibration We review the current status of WFPC2 and its calibration, as well as future plans for special close-out calibrations prior to its eventual de-orbit. WFPC2 continues to perform flawlessly with very little change in its b ...
2005 HST Calibration Workshop
Randy Kimble (NASA Goddard Space Flight Center)
Calibration Status and Results for Wide Field Camera 3 Wide Field Camera 3 is a general purpose imager with broad wavelength coverage (200-1700 nm), currently in development for installation in place of WFPC2 in Servicing Mission 4. The instrument f ...
2005 HST Calibration Workshop
Harvey Richer (University of British Columbia)
Finding Stars in Undersampled ACS Images We present a new method of finding stars in undersampled ACS images. The algorithm produces hands off clean stellar finding lists that are largely devoid of galaxies, lumps on diffraction spikes and saturatio ...
2005 HST Calibration Workshop
Anton Koekemoer (Space Telescope Science Institute)
Multidrizzle Overview and Future Plans The MultiDrizzle program provides a powerful, unified interface to the various steps involves in registering, cleaning and combining dithered HST data using the "drizzle" software. MultiDrizzle can be run on AC ...
2005 HST Calibration Workshop
Andy Fruchter (Space Telescope Science Institute)
No description found.
Wednesday Oct 26, 2005
2005 HST Calibration Workshop
Matt Mountain (Space Telescope Science Institute)
No description found.
2005 HST Calibration Workshop
Paul Goudfrooij  (Review and Status of STIS Closeout)
Review and Status of STIS Closeout The huge archive of STIS observations constitutes a unique source of spectroscopic data in the UV and spatially-resolved spectroscopic data at UV and optical wavelengths. To enable the astronomical community to tak ...
2005 HST Calibration Workshop
Charles Proffitt (Space Telescope Science Institute)
STIS First Order Spectroscopic Flux Calibration. During the operational lifetime of STIS, the primary emphasis of throughput measurements was the accurate determination of broad band point source fluxes observed using the low dispersion modes at the ...
2005 HST Calibration Workshop
Michael Gregg (U. California, Davis and Lawrence Livermore National Lab)
The HST/STIS Next Generation Spectral Library During Cycles 10, 12, and 13, we obtained STIS G230LB, G430L, and G750L spectra of 378 bright stars covering a wide range in abundance, effective temperature, and luminosity. This HST/STIS Next Generatio ...
2005 HST Calibration Workshop
Paul Bristow (n/a)
STIS Calibration Enhancement: Implementation of Model Based Techniques for Wavelength Calibration and Charge Transfer Inefficiency The Instrument physical Modelling Group at the Space Telescope European Co-ordinating Facility is investigating areas ...
2005 HST Calibration Workshop
Paul Goudfrooij (Space Telescope Science Institute)
Correcting STIS CCD Spectra for CTE Loss Since the installation of STIS onto HST in Feb 1997, radiation damage to the CCD (primarily due to high energy protons encountered in crossings of the South Atlantic Anomaly) has caused a degradation of its C ...
2005 HST Calibration Workshop
Kris Davidson (n/a)
No description found.
2005 HST Calibration Workshop
Paul Barrett (n/a)
No description found.
2005 HST Calibration Workshop
Linda Dressel (Space Telescope Science Institute)
Improving the Rectification of Spectral Images Single rows in STIS rectified spectral images are being analyzed in science programs where the highest obtainable spatial resolution is needed. I will discuss two problems that have limited the accuracy ...
2005 HST Calibration Workshop
Alessandra Aloisi (Space Telescope Science Institute)
Towards a Comprehensive Sensitivity Calibration of the STIS Echelle Modes I will present the state of the art of the final sensitivity calibration for all the STIS spectroscopic Echelle modes. This includes 1) the derivation of a new absolute sensit ...
2005 HST Calibration Workshop
Florian Kerber (ST-ECF)
STIS Calibration Enhancement: Dispersion solutions based on a physical instrument model The Space Telescope European Co-ordinating Facility (ST-ECF) embarked on the STIS Calibration (STIS-CE) effort as part of the extension of the Memorandum of Unde ...
2005 HST Calibration Workshop
Jesus Maiz (Space Telescope Science Institute)
NUV-MAMA Prism Calibration A flux calibration for the STIS NUV-MAMA objective prism that yields a precision of 1% rms in the 1300-3000 ? range with respect to the first-order modes G140L and G230L will be presented. I will also discuss MULTISPEC, a ...
2005 HST Calibration Workshop
James Green (University of Colorado)
Results from the Calibration of the Cosmic Origins Spectrograph The Cosmic Origins Spectrograph (COS)had a full thermal-vacuum calibration run in summer 2003, and will undergo another full calibration in 2006 in anticipation of a late 2007 launch. W ...
2005 HST Calibration Workshop
Kenneth Sembach (Space Telescope Science Institute)
HST Two Gyro Mode The Hubble Space Telescope was originally designed to use three rate-sensing gyroscopes to provide fine pointing control of the observatory during science observations. In order to conserve the lifetime of the HST gyros, one of the ...
2005 HST Calibration Workshop
Ed Nelan (n/a)
FGS Astrometry in Two-Gyro Mode The FGS is used for astrometric measurements with accuracies that are typically good to 0.2 mas, as well as to resolve binary systems with separations that are less than HST's diffraction limit. One might expect some ...
2005 HST Calibration Workshop
Barbara McArthur (Ed Nelan Presenting) (n/a)
The Optical Field Angle Distortion Calibration of HST Fine Guidance Sensors 1R and 3 To date five OFAD (Optical Field Angle Distortion) calibrations have been performed with a star field in M35, four on FGS3 and one on FGS1, all analyzed by the Astr ...
2005 HST Calibration Workshop
Brian McLean (Space Telescope Science Institute)
The New GSC-II and its use for HST The second generation HST Guide Star Catalog (GSC-II) provides a significant improvement over the original GSC-I. It provides ICRS-based positions with improved accuracy for almost a billion objects as faint as J~2 ...
2005 HST Calibration Workshop
Rick White (Karen Levay presenting) (Space Telescope Science Institute)
The HST Archive Recent and planned enhancements to the Hubble and MAST archives will be described. Many of our new capabilities make use of the Virtual Observatory, including access to thousands of astronomical catalogs through VizieR, VO-compatible ...
2005 HST Calibration Workshop
Perry Greenfield (Space Telescope Science Institute)
Where Will PyRAF Lead Us? The Future of Data Analysis Software at STScI PyRAF, which allows the running and scripting of IRAF tasks from Python, was just the first step in STScI's migration to a more flexible and productive data analysis software en ...
2005 HST Calibration Workshop
Bob Hanisch (Space Telescope Science Institute)
The National Virtual Observatory and HST In the past several years the National Virtual Observatory has progressed from concept to implementation. The NVO provides a suite of core applications for data discovery, multi-wavelength data comparison and ...