HST Data Handbook for ACS

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

Index

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A

accuracy

astrometric, improving 1

acquisition failure

guide stars 1

ACS

data retrieval 1

imset,STSDAS tasks for 1

ACS2D

flow diagram 1

task, MAMA calibrations 1

ACSCCD

flow diagram 1

task, CCD calibrations 1

ACSREJ

task, cosmic-ray rejection 1

ACSSUM

task, image combination 1

analog-to-digital conversion 1

analysis

images, general in STSDAS 1

images,imcalc task 1

spectra, general in STSDAS 1

spectra, STIS 1

spectra, tasks in IRAF 1

analysis package

tasks in 1

Aperture correction 1

encircled energies 1

red objects 1

scattered light halo 1

Apertures

detectors in V2/V3 frame 1

apphot package

aperture photometry 1

apropos task 1

archive

convert files 1

file types 1

manual 1

MAST overview 1

arithmetic

imset, msarith task 1

spectra, splot task 1

array

FITS table 1

association

product 1

table 1

Association Tables

applying user-defined shifts 1

creating custom tables 1

creating tables from scratch 1

merging tables 1

structure 1

use with PyDrizzle 1

Astrometry

Anderson and King correction 1

coordinate transformations 1

guide star failure impact 1

astrometry

basic, in STSDAS 1

improving accuracy 1

B

background

IRAF task I/O 1

running tasks in 1

Bad Pixels

data quality array 1, 2

pixel flag values 1

reference file (BPIXTAB) 1

bandpar 1

Bias jump

between quadrants 1

horizontal 1

Bias subarrays 1

Bias subtraction

bias image (BIASFILE) 1

overscan subtraction table (OSCNTAB) 1

superbias 1

bintable

FITS table 1

Blooming 1

Buffer memory 1

C

CALACS

flow diagram

CCD data 1

general 1

MAMA data 1

gain correction 1

individual tasks

ACS2D 1

ACSCCD 1

ACSREJ 1

ACSSUM 1

list of calibration steps 1

memory requirements 1

overview 1

processing dithered exposures 1

processing repeated exposures 1

processing single exposures 1

Calibration

CCD 1

coronagraphy 1

flat field 1

gain 1

MAMA 1

manual 1

on-the-fly 1

photometry 1

pipeline 1

polarimetry 1, 2

processing speed 1

ramp filters 1

shading correction 1

software 1

spectroscopy 1

switch selection criteria 1

calibration

software, STSDAS 1

Capabilities

coronagraphy 1

imaging 1

polarimetry 1

spectroscopy 1

Chip offset

WFC 1

Color transformation 1

command

see "task"1

Context Image 1, 2

conversion

counts to flux or magnitude 1

Coronagraphy

flat fields 1

ghosting 1

observing considerations 1

optical path 1

photometry 1

PSF 1

Cosmic-ray Rejection

ACSREJ task 1

algorithm 1

attached pixels 1

DQ flags 1

events 1

fractional coverage 1

reference file (CRREJTAB) 1

counts

flux or magnitude conversion 1

Cross talk

dependence on sky 1

impact on object flux 1

intensity 1

quadrant dependence 1

readout noise 1

CTE 1

internal 1

parallel 1, 2

PSF 1

serial 1, 2

trending 1, 2

YCTE equation 1, 2

cursor commands

splot 1

D

Dark Current

distribution tails 1

features 1

reference file (DARKFILE) 1, 2

subtraction, pipeline calibration 1

superdark 1

Data

array size (arcsec) 1

array size (pixels) 1, 2

associations 1

file size (MB) 1

file suffixes 1

FITS file structure 1

storage requirements 1

data

analysis software, STSDAS 1

Data Quality

array initialization 1, 2

FITS image extension 1

flags

cosmic-rays 1

hot pixels 1

saturation 1

pixel flag values 1

data quality

PDQ files 1

Data Storage

buffer memory 1

file size (MB) 1

storage requirements 1

database

synphot 1

dataset

see also "imset"1

Detectors

CCD 1

MAMA 1

directory

navigation in IRAF 1

disconlab task

position display 1

display

image 1

SAOimage 1

spectra 1

display task

images in STSDAS 1

Distortion

see "Geometric Distortion"1

Dithered data

combining 1

dithering

documentation 1

observations, described 1

documentation

IRAF,STSDAS 1

Drizzling

ACS software tools 1

applying user-defined shifts 1

introduction 1

kernel 1

MultiDrizzle software 1

pixfrac 1

PyDrizzle 1

scale 1

ds9 1

Dust motes 1

E

echelle spectra

echplot task 1

EDPS 1, 2

engineering data

EDPS 1

OMS logs 1

environment variable

IRAF 1

eparam task

editing parameters 1

Error Array

FITS image extension 1

initialization 1, 2

escape

IRAF task I/O 1

extension

FITS file 1

FITS, appending 1

FITS, listing 1

F

FGS

GEIS format 1

files

data formats 1

data quality (PDQ) 1

FITS, working with 1

naming conventions Intro:2-11, 2

observation log (OMS,EDPS) 1

observer comments (OCX) 1

rootname 1

specification in IRAF 1

trailer 1

Filter wheel position accuracy 1

FINE LOCK

guidance 1

FITS

convert to GEIS 1

files, working with 1

files,reading 1

format, described 1

table 1

table, array in cell 1

waiver 1

FITS file structure 1

fitting package

tasks in 1

Flat field

coronagraphy 1

correction, pipeline calibration 1

earth flat 1

ground flat 1

L-flat correction 1

pipeline flats 1

pixel area map 1

polarimetry 1

ramp filters 1

reference file (PFLTFILE) 1

sky flat 1

spectroscopy 1

flux

combine with wavelength 1

conversion from counts 1

FOC

GEIS format 1

format

IRAF files 1

FOS

display spectra 1

GEIS format 1, 2

preparing data 1

Full well depth

HRC 1

WFC 1

fwplot task

display spectrum 1

G

Gain calibration

HRC 1

WFC 1

Gain correction 1

GEIS format

described 1, 2

instruments 1

Generic Conversion

OPUS processing 1

Geometric Distortion

calibration program 1

detector orientations 1

distortion model 1

HRC 1

overview 1, 2

reference file (IDCTAB) 1

SBC 1

velocity aberration correction 1

WFC 1

geometric distortion

correction WF/PC-1, WFPC2 1

GHRS

display spectra 1

GEIS format 1

preparing data 1

group

number in image 1

parameters 1

working with 1, 2

grspec task

plot groups 1

GSC2 1, 2

guidance mode

telescope 1

guide stars

acquisition 1

acquisition failure 1

dominant roll 1

GSC2 1

number used 1

H

hardcopy

see "print" or "paper products"1

HDA

Hubble Data Archive 1

HDU 1

Header 1

extension header keywords 1

primary header keywords 1

header

file, GEIS 1

file,FITS 1

keyword, inheritance in FITS 1

header data unit

FITS file 1

help

STSDAS and IRAF tasks 1, 2

HLSP

described 1

products 1

Hot columns 1

Hot pixels 1, 2

"Warm" pixels 1

anneal rate 1

DQ flags 1

growth 1

trending 1

HRC

capabilities 1

description 1, 2

distortion 1, 2

I

IDCTAB

distortion table 1

IDL (Interactive Data Language) 1

igi

documentation 1

plotting with 1

printing plots 1

image

display 1

GEIS file 1

plot data, implot 1

section 1, 2

see also "FITS"1

image set

see "imset"1

imcopy task

FITS files 1

imexamine task

image display and plot 1

imgtools package

multigroup GEIS images 1

implot task

plot image data 1

imset

combination, msjoin task 1

extraction, mssplit task 1

statistics, msstatistics task 1

STSDAS tasks for 1

imstatistics task 1

imtab task

header to table 1

IPPSSOOOT

see "files, naming conventions"1

IRAF

described 1

documentation 1

obtaining 1

parameter types 1

piping 1

psikern, PostScript 1

setup 1

spectral analysis 1

J

Java 1

jitter

effect on target lock 1

jih, jif image 1

plotting 1

K

Keywords

extension header 1

primary header 1

keywords

FITS header 1

see also "header"1

L

Linearity

HRC 1, 2

WFC 1

Linearity Correction

MAMA 1

reference file (MLINTAB) 1

lparam task

viewing parameters 1

M

magnitude

conversion from counts 1

MAST 1

archive retrievals 1

missions 1

math

see "arithmetic"1

mkiraf command

IRAF setup 1

mkmultispec task 1

mosaic

WF/PC-1 and WFPC2 images 1

moving target

acquisition 1

msarith task

imset arithmetic 1

mscombine task

combine imset 1

msjoin task

combine imset 1

mssplit task

extract imset 1

msstatistics task

imset statistics 1

imset statitistics 1

mstools package

FITS image extenstions 1

multiaccum

NICMOS file 1

MultiDrizzle

combine images 1

data products 1, 2

list of tasks performed 1

pipeline 1

removing cosmic-rays 1

system requirements 1

use with PyDrizzle 1

multispec format

described 1

N

naming conventions

files, HST data 1

navigating

IRAF directories 1

nfit1d task 1

ngaussfit task 1

NICMOS

imset, STSDAS tasks 1

pipeline 1

O

observation log

file suffix 1

files,general 1

guiding mode 1

observer comment file

described 1

Observing Considerations

coronagraph 1

dithering 1

parallel observing 1

pattern 1

target acquisitions 1

OCX file 1

OIF

imh/pix files 1

original IRAF format 1

OMS

observation log files 1

Optical Ghosts 1

Optics

coronagraph 1

HRC/SBC 1

WFC 1

OPUS

see "pipeline"1

OTFR

described 1

on-the-fly reprocessing 1

Overscan Region Table

reference file (OSCNTAB) 1

Overscan subtraction 1, 2

P

package

IRAF concept 1

STSDAS, structure 1, 2

parameter

IRAF,types 1

see also "eparam" and "lparam"1

setting, IRAF 1

PDQ file 1

Photometry 1

aperture correction 1

bypassing PHOTCORR during recalibration 1

color correction 1

coronagraphy 1

header keywords 1

photometric systems 1, 2

pixel area map 1

red leaks 1

reference files (GRAPHTAB, COMPTAB) 1

UV contamination 1

zeropoints 1

photometry

basic, in IRAF/STSDAS 1

synthetic,synphot task 1

pipe

IRAF task I/O 1

Pipeline

CALACS image calibration 1

generic conversion 1

PyDrizzle dither combining 1

pipeline

association 1

calibration, files 1

distortion correction 1

flux keywords 1

Multidrizzle 1

Pixel area map 1

extended sources 1

geometric distortion 1

photometry 1

point sources 1

pixel coordinate

converting to RA and Dec 1

pixel data

GEIS file 1

Pixel Scale

average scale 1

default drizzled image scale 1

plot

igi task 1

pointing stability 1

Polarimetry

calibration 1, 2

diattenuation 1

flat fields 1

geometric distortion 1

instrumental 1

phase retardance 1

zeropoint 1, 2

position

images,coordinate conversion 1

Post-Flash Correction

reference file (FLSHFILE) 1

PostScript

psikern, IRAF 1

print

plots,in IRAF 1

PSF

CTE 1

red halo 1

UV 1

variation 1

psikern

PostScript IRAF kernel 1

PyDrizzle

association tables 1

data products

context image 1, 2

science image 1, 2

weight image 1, 2

memory requirements 1

overview 1

PyRAF environment 1

use with MultiDrizzle 1

PyFITS 1

PyRAF 1

Python 1

Q

quantization noise 1

R

Ramp filters

apertures 1

flat fields 1

ground calibration 1

Readout noise 1

Recalibration

bypassing PHOTCORR 1

manual 1

on-the-fly 1

removing cosmic rays 1

requirements 1

see also "Calibration"1

setting switches 1

recentering

jitter 1

Red leaks

HRC 1

SBC 1

redirect

IRAF task I/O 1

Reference files

bad pixel table 1

bias image 1

calibration switches 1

CCD characteristics table 1

cosmic-ray rejection table 1

dark image 1, 2

flat field 1

header keywords 1

MAMA linearity table 1

overscan table 1

post-flash image 1

shutter shading image 1

throughput component tables 1

Repeat Observations

summing 1

resample task 1

rootname

see "files, naming conventions"1

S

SAOimage

display image 1

Saturation

DQ flags 1

Saturation limit

digital 1

SBC

capabilities 1

description 1

distortion 1, 2

Scale

average pixel scale 1

default drizzled pixel scale 1

Scattered earth light 1

section

image 1

selectors

syntax 1, 2

sgraph task 1

plot group 1

plot STIS spectra 1

Shading Correction

reference file (SHADFILE) 1

Shift file 1

Shutter operation 1

Shutter stability

revised exposure times 1

software

IRAF 1, 2

STSDAS 1, 2

South Atlantic Anomaly 1

specfit task

fit models to spectrum 1

spectra

analysis tasks 1

analysis, IRAF/STSDAS 1

display 1

display, STIS 1

fitting 1

specfit task 1

Spectroscopy

AUTOIMAGE 1

background 1

bright stars 1

calibration 1

calibration keywords 1

crowding 1

dispersion 1

extra-field objects 1

flat field 1

flat fielding 1

flux calibration 1

resolution 1

wavelength calibration 1

zeroth order 1

Specview

plot spectra 1

spectral analysis 1

splot task

cursor commands 1

plot spectra 1

StarView

cross-qualification 1, 2

data retrieval 1

downloading 1

observation logs 1

simple use 1

Statistics

image 1

STIS

analysis, preparing 1

imset, STSDAS tasks for 1

plot spectra 1

tabular spectra 1

STSDAS

astrometry in 1

described 1

documentation 1

image analysis tasks 1

image display 1

image, section 1

imset tasks 1

obtaining 1

organization of 1

photometry in 1

spectral analysis tasks 1

synphot, database 1

synthetic photometry 1

tables 1

Suffix

pipeline suffixes 1, 2

suffix

see "files, naming conventions"1

synphot

database, obtaining 1

documentation 1

synthetic photometry 1

synthetic photometry

see "synphot"1

T

table

association 1

FITS 1

STSDAS 1

target acquisition

moving target 1

Target Acquisitions 1

task

IRAF concept 1

tomultipsec task

extract STIS spectral orders 1

trailer file

described 1

Trailer Files

comments from PyDrizzle 1

creation by CALACS 1

transformation

pixel coordinates to RA and Dec 1

ttools package

STSDAS tables 1

two-gyro mode 1

txtable task

extract arrays 1

U

Units

calibrated data 1

drizzled data 1

raw data 1

units

counts to flux/mag, conversion 1

V

variable

IRAF, environment 1

Velocity Aberration

correction to distortion model 1

VTT

described 1

StarView and 1

W

waiver FITS format

described 1

instruments 1

Warm pixels 1

wavelength

combine with flux 1

Weight Image 1, 2

WF/PC-1

display 1

GEIS format 1

geometric correction 1

WFC

capabilities 1

chip offsets 1

description 1, 2

distortion 1, 2

WFPC2

display 1

GEIS format 1

geometric correction 1

waiver FITS 1

WFPC2 associations 1

wmosaic task 1

World Coordinate System

mkmultispec task 1

X