! $Id: 5669,v 3.1 1994/07/27 20:14:43 pepsa Exp $
coverpage:
title_1: FOC FLAT-FIELD LINEARITY
proposal_for: CAL/FOC
pi_title: DR.
pi_fname: PERRY
pi_lname: GREENFIELD
pi_inst: SPACE TELESCOPE SCIENCE INSTITUTE
pi_country: USA
foc: X
abstract:
line_1: Nonlinearity of count rate an important instrumental characteristic of the
line_2: FOC and affects many of its observations. The Intensity Transfer Function
line_3: for flat fields was well studied in two SV calibration programs. Nevertheless,
line_4: it has been over three years and it is quite possible that the ITF curves
line_5: have changed significantly in that time. Since these ITF curves form the
line_6: basis for virtually all our methods of determining the amount of nonlinearity
line_7: (even for point sources) it is important to verify that there have been
line_8: significant changes. The original SV proposals covered 4 different formats;
line_9: this proposal will use only two formats: the 512x512 and the 512 zoomed x
line_10: 1024 formats. Like the SV proposals, the ITF is measured by taking exposures
line_11: using the onboard LEDs at increasing levels of illumination. All observations
line_12: are to be carried out in parallel mode.
general_form_proposers:
lname: GREENFIELD
fname: PERRY
title: DR.
inst: SPACE TELESCOPE SCIENCE INSTITUTE
country: USA
general_form_text:
question: 3
section: 1
line_1: Sequences of images are taken using the internal LED as a flat field source at
line_2: a variety of different intensity levels to cover both the linear and saturated
line_3: parts of the intensity transfer function. As the calibration of the LED
line_4: intensity is accurately known, the linearity of the detector can be determined.
line_5: This sequence of images will comprise 6-9 LED exposures at different levels,
line_6: and will have to be repeated for 2 different camera formats because linearity
line_7: is format dependent.
general_form_address:
lname: GREENFIELD
fname: PERRY
title: DR.
category: PI
inst: SPACE TELESCOPE SCIENCE INSTITUTE
addr_1: 3700 SAN MARTIN DRIVE
city: BALTIMORE
state: MD
zip: 21218
country: USA
phone: 301-338-4426
telex: 684-9101-STSCI
exposure_logsheet:
linenum: 1.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 9
param_1: LED=GREEN-2,
param_2: LED-STEP=255
req_1: CYCLE 4 / 1-18;
req_2: GROUP 1-11 NO GAP
linenum: 2.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 9
param_1: LED=GREEN-2,
param_2: LED-STEP=192
linenum: 3.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 9
param_1: LED=GREEN-2,
param_2: LED-STEP=128
linenum: 4.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 9
param_1: LED=GREEN-2,
param_2: LED-STEP=64
linenum: 5.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 9
param_1: LED=GREEN-2,
param_2: LED-STEP=32
linenum: 6.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 9
param_1: LED=GREEN-2,
param_2: LED-STEP=10
linenum: 7.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 9
param_1: LED=GREEN-2,
param_2: LED-STEP=5
linenum: 8.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: LED=BLUE,
param_2: LED-STEP=192
linenum: 9.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: LED=BLUE,
param_2: LED-STEP=128
linenum: 10.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: LED=BLUE,
param_2: LED-STEP=64
linenum: 11.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X512
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: LED=BLUE,
param_2: LED-STEP=32
linenum: 12.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X1024
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: PIXEL=50X25,
param_2: LED=GREEN-2,
param_3: LED-STEP=128
req_1: GROUP 12-18 NO GAP;
linenum: 13.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X1024
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: PIXEL=50X25,
param_2: LED=GREEN-2,
param_3: LED-STEP=64
linenum: 14.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X1024
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: PIXEL=50X25,
param_2: LED=GREEN-2,
param_3: LED-STEP=32
linenum: 15.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X1024
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: PIXEL=50X25,
param_2: LED=GREEN-2,
param_3: LED-STEP=16
linenum: 16.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X1024
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: PIXEL=50X25,
param_2: LED=GREEN-2,
param_3: LED-STEP=8
linenum: 17.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X1024
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: PIXEL=50X25,
param_2: LED=GREEN-2,
param_3: LED-STEP=4
linenum: 18.000
targname: INTFLAT
config: FOC/96
opmode: RESEAU
aperture: 512X1024
sp_element: CLEAR
num_exp: 1
time_per_exp: 500S
priority: 1
param_1: PIXEL=50X25,
param_2: LED=GREEN-2,
param_3: LED-STEP=2
!~~~RPSS~~~,CALFOC,led_itf.prop, 2-JUN-1994 10:02