All TEL/Observatory Reports

TIR-CDBS-2008-01: Assessment and Delivery of Reference Files
This TIR defines the standard procedures for the delivery of calibration pipeline reference and SYNPHOT data files. It clearly establishes the instrument and OTA teams’ responsibilities and provides guidelines for testing and verification of reference files. This is a revision to TIR 2005-01A. In this revision, we update information to account for changes in the testing procedures for SYNPHOT files.
R. Diaz 30 Jun 2008 (pdf)

TIR-CDBS 2008-02: Delivery of Reference Files to the Data Management Systems
This TIR describes the INS/CDBS Team's responsibilities. It defines the standard procedures for the delivery of calibration pipeline and SYNPHOT reference files to the Data Management Systems (DMS). It provides guidelines for test and validation of reference files by the INS/CDBS Team. This is an update to TIR CDBS 2005-02A. It clarifies procedures to deliver al l type of SYNPHOT files, including Atlases and bandpasses.
R. Diaz 30 Jun 2008 (pdf)

ISR-ACS-2007-07, Calibration of ACS/WFC Absolute Scale & Rotation for Use in Creation of a JWST Astrometric Reference FIeld
Describes the ACS absolute scale determination to support JWST calibration requirements via forward calibration.
Roeland P. van der Marel et al. 12 Jul 2007 (pdf)

Improving Hubble Space Telescope's Pointing & Absolute Astrometry
M. Lallo et al., May 2007

TIR-CDBS 2005-02A: Delivery of Reference Files to the Data Management Systems
This TIR describes the INS/CDBS Team’s responsibilities. It defines the standard procedures for the delivery of calibration pipeline and SYNPHOT reference files to the Data Management Systems (DMS). It provides guidelines for test and validation of reference files by the INS/CDBS Team. This is an update to TIR CDBS 2005-02. It clarifies procedures and describes new tools developed to facilitate the delivery process and better test the reference files.
R. Diaz-Miller 16 May 2005 (pdf)

TIR-CDBS 2005-01A: Assessment & Delivery of Reference Files
This TIR defines the standard procedures for the delivery of calibration pipeline and SYNPHOT reference files. It clearly establishes the instrument and OTA teams' responsibilities and provides guidelines for testing and verification of reference files. In this revision to TIR 2005-01, we clarify procedures, update information, and describe new tools created to aid the instrument teams with the validation of their reference files.
R. Diaz-Miller 05 May 2005 (pdf)

ISR-TEL-2006-01, Modeling Aberrations in the Advanced Camera for Surveys
Investigates the plausibility of optical misalignments as the cause of apparent aberration changes implied by phase retrieval of HRC PSFs
K. Houairi et al. 13 Oct 2006 (pdf)

Temporal Optical Behavior of HST: Impact on Science Observations
R. B. Makidon et al., May 2006

Temporal Optical Behavior of HST: Focus, Coma & Astigmatism History
M. Lallo et al., May 2006

TIR_STIS_2006_01: Synphot Data Files (creation, testing, and delivery for STIS)
This TIR clarifies how Synphot uses instrument data files, in conjunction with the software, to make predictions about HST observations. It also covers in detail the procedures for the creation, testing, and delivery of STIS Synphot data files.
R. I. Diaz-Miller 07 Jul 2006 (pdf)

ISR-TEL-2005-03, HST Temporal Optical Behavior & Current Focus Status
Reviews the timescales, mechanisms, and importance of variations in aberrations (focus, coma, astigmatism). Presents focus status of the observatory.
M. Lallo et al. 27 Oct 2005 (pdf)

HST Temporal Optical Behavior: Models & Measurements with ACS
R. B. Makidon et al., 30 Oct 2005

Synphot Delivery Procedures
Draft
R. Diaz Miller 05 May 2005 (pdf)

User's Guide for the CDBS Pipeline

M. Swam 17 May 2005 (html)

Guiding Errors in 3-Gyro: Experience from WF/PC, WFPC2, STIS, NICMOS and ACS
As background information to support interpretation of results during testing under 2-gyro operation, this report summarizes typical behavior gleaned from several observations with ACS, WF/PC, WFPC2, STIS and NICMOS.
R. L. Gilliland 11 Aug 2005 (pdf)

Observer Anomaly(?): Recent Jitter & PSF Variations
ISR TEL 2005-01 This ISR documents Point Spread Function (PSF) and pointing drifts from a recent 5-orbit program with the HRC of ACS.
R. L. Gilliland 11 Aug 2005 (pdf)

Telescope Image Modeling (Tiny Tim) Handbook
User's manual for "Tiny Tim". Software package for simulating HST PSFs. J. Krist 01 Jun 2004 (pdf)

ACS field-dependent PSF variations...
Examines PSF width and ellipticity variations over WFC and HRC field resulting from optical and charge diffusion effects.
J. Krist 03 May 2006 (pdf)

Assessment & Delivery of Spectrographs Calibration Reference Files

R. DIaz-Miller 05 May 2005 (pdf)

Post-2003 Jitter File Description Document
Defines the current format of the HST jitter file products. Supplement to the "Pre-2003 Jitter FIle Description Document"
J. Baum 25 Aug 2005

Pre-2003 Jitter File Description Document
Specifies the HST jitter files prior to spring 2003; describes their interpretation and application. For observations after this date, see "Post-2003 Jitter File Description Document"
M. Lallo 24 Jun 2002

On-orbit alignment & imaging performance of HST ACS
G. F. Hartig et al. Jan 2002

HST Thermal Focus Variations
HST Thermal Focus Variations.
J. Hershey 25 Jun 2002

HST Focus History
HST Focus History
TEL 25 Jun 2002

HST Secondary Mirror Moves
Table of HST Secondary Mirror Moves.
R. B. Makidon 25 Jun 2002

HST Focus in Year 2000 - A Review of the Cycle 9 Focus Monitor Program
OTA-2001-01: After the last HST refocusing in June 2000,an enhanced OTA focus monitor(8829) began running as a cycle 9 observatory-level calibration to supplement...
M. Lallo 21 Jun 2002 (pdf)

OTA Focus Review Memo
Focus history, mirror moves, and typical accuracy are reviewed.
M. Lallo 25 Jun 2002 (pdf)

Modelling HST Focal-Length Variations
Paper on the Modelling HST Focal-Length Variations.
J. Hershey 25 Jun 2002 (pdf)

Delivering Calibration Reference Files

C. Cox & C. Tullos 26 Apr 2004 (pdf)

A Thermal Study of the Early NGST Instrument Module
ISR NGST-01: A study was performed on the GSFC-led design of the NGST Integrated Science Instrument Module (ISIM) to gauge the sensitivities of the optical bench temperatures...
M. Lallo 20 Jun 2002 (pdf)

NICMOS History Database & Web Tools

C. Tullos 05 May 2005 (pdf)

NICMOS History Database and Web Tools
OSG-CAL-98-01: The history of NICMOS platescale, focus, and coronographic hole data has been stored in a database which is accessible via tools on the World Wide Web. The history tool which allows queries on the data, is available to the public.
C. Tullos 20 Jun 2002 (pdf)

CDBS Appendices

CDBS 28 Apr 2004 (pdf)

NICMOS Distortion Correction
OSG-CAL-97-07: The NICMOS distortion was measured by a series of images of the star cluster NGC1850.
C. Cox 20 Jun 2002 (pdf)

Velocity Aberration Correction for Parallel Observations
OSG-CAL-97-06: The velocity aberration correction performed by the HST pointing control software is valid for the target direction only...
C. Cox 20 Jun 2002 (pdf)

update_opus

S. Kao 29 Apr 2004 (pdf)

Redesign of CDBS

S. Lubow 28 Apr 2004 (pdf)

NICMOS SM-2 SMOV Alignment Results
OSG-CAL-97-04: NICMOS SM-2 SMOV Alignment Results.
O. Lupie 20 Jun 2002 (pdf)

WWW Query Tool for CDBS
OSG-CAL-97-05: Using the World Wide Web, direct query-access has been made to the Calibration Database.
C. Tullos 20 Jun 2002 (pdf)

The Focal Plane Monitoring Program
OSG-CAL-97-02: The OSG runs a focal plane monitoring program, known as the Heptathlon , routinely checking the SIs and FGSs four times a year as a way of assessing trends and stability in the HST focal plane.
C. Cox 20 Jun 2002 (pdf)

loopfits

B. Simon 29 Apr 2004 (pdf)

Data Quality Assessment Database and a World-Wide Web Interface
OSG-CAL-97-01: We have developed a database to hold this information and a series of World-Wide Web pages to facilitate reporting directly into this database.
C. Tullos 20 Jun 2002 (pdf)

recreate_load_file

R. Whitman 29 Apr 2004 (pdf)

opus_sql_gen

S. Kao 29 Apr 2004 (pdf)

comments_sql_gen

R. Whitman 28 Apr 2004 (pdf)

cdbs_sql_gen

R. Whitman 28 Apr 2004 (pdf)

uniquename

B. Simon 29 Apr 2004 (pdf)

expload

B. Simon 29 Apr 2004 (pdf)

Transforming Non-COSTAR Aperture Positions to the New Vehicle Reference
OSG-CAL-96-06: A major effect of the on-orbit FGS to FGS re-alignment of day 105 1996, was the redefinition of the vehicle reference frame...
M. Lallo 20 Jun 2002 (pdf)

The HST Set of Absolute Standards for the 0.12 micron to 2.5 microns Spectral Range
OSG-CAL-96-05: A proposal to create a homogeneous set of absolute calibration standards covering for the first time the 0.12 micron to 2.5 microns spectral range is described.
L. Colina 20 Jun 2002 (pdf)

Installation Instructions for NEWCDBS

B. Simon 29 Apr 2004 (pdf)

Directory Structure for CDBS

S. Lubow 29 Apr 2004 (pdf)

mkcomptab

B. Simon 29 Apr 2004 (pdf)

certify

B. Simon 28 Apr 2004 (pdf)

CDBS Spectral Atlases of Galaxies and Emission Line Objects
OSG-CAL-96-04: This document explains the content and scope of new spectral atlases of galaxies and galactic emission line objects added to the CDBS astronomical catalog.
L. Colina 20 Jun 2002 (pdf)

OSG Cycle 6 Calibration Plan
OSG-CAL-96-03: This report summarizes the Observatory Support Group calibration plans for Cycle 6.
L. Colina 20 Jun 2002 (pdf)

mkload

B. Simon 29 Apr 2004 (pdf)

Calibration Database Data Design V6.0

CDBS 07 May 2004 (pdf)

The 0.12-2.5 micron Absolute Flux Distribution of the Sun for Comparison with Solar Analog Stars
OSG-CAL-96-02: An absolute flux calibrated reference spectrum of the Sun covering the 0.12 to 2.5 micron wavelength range is presented.
L. Colina 20 Jun 2002 (pdf)

Absolute Flux Calibrated Spectrum of Vega
OSG-CAL-96-01: An absolute flux calibrated reference spectrum of Vega, the primary calibration standard in the optical, is presented.
L. Colina 20 Jun 2002 (pdf)

Spectrophotometric Standards from the Far-UV to the Near-IR on the White Dwarf Flux Scale
SCS-007: The second generation instruments to be installed in 1997 on the Hubble Space Telescope (HST) require spectrophotometric standard stars for flux calibrations...
R. Bohlin 20 Jun 2002 (pdf)

Absolute Flux Calibration of Optical Spectrophotometric Standard Stars
SCS-004: A method based on Landolt photometry in B and V is developed to correct for a wavelength independent offset of the absolute flux level of optical spectrophotometric standards.
L. Colina 20 Jun 2002 (pdf)

Phase-retrieval analysis of pre- and post-repair HST images
J. Krist & C. Burrows, 1 Aug 1995

CDBS Kurucz Stellar Atmosphere Atlas
SCS-006: CDBS Kurucz Stellar Atmosphere Atlas.
L. Colina 20 Jun 2002 (pdf)

White Dwarf Standard Stars: G191-B2B, GD 71, GD 153, HZ 43
SCS-005: White Dwarf Standard Stars: G191-B2B, GD71, GD153, HZ43.
R. Bohlin 20 Jun 2002 (pdf)

Focus Monitoring and Recommendation for Secondary Mirror Move
OTA-18: Focus monitoring and recommendation for secondary mirror move.
S. Casertano 20 Jun 2002 (pdf)

The WFPC2 Scales and Alignments
SOB-94-10-21: WFPC2 observations of the open cluster M67 has been used to establish the scales and rotations with respect to the HST V2 V3 coordinate system.
C. Cox 20 Jun 2002 (pdf)

An Investigation into the Guidance of FOC GTO 4073
SOB-94-06-07: An analysis of the guidance of the 1992 FOC GTO program 4073 was conducted at the request of the PI...
S. Holfeltz 20 Jun 2002 (pdf)

A Multipurpose Pointing Analysis Tool (OBSOLETE!)
SOB-94-02-15: We present software for determining accurate HST attitude from guidestar and velocity data.
C. Cox 20 Jun 2002 (pdf)

A Determination of the Pointing History during FOS Scans of Mars
SOB-93-12-06: We have used pointing software, developed earlier for a comparison with the PASS software, to analyze scans of Mars performed at intervals since June 1992.
C. Cox 20 Jun 2002 (pdf)

Attitude Determination and Target Location
SOB-92-01-01: Attitude Determination and Target Location.
C. Cox 20 Jun 2002 (pdf)