Proposal 13222 (STScI Edit Number: 6, Created: Monday, June 23, 2014 8:00:45 PM EST) - Overview
13222 - WFC3 SS UVIS Flat Field Uniformity
Cycle: 20, Proposal Category: CAL/WFC3
(Availability Mode: RESTRICTED)
INVESTIGATORS
Name
Dr. John W. MacKenty (PI) (Contact)
Heather Gunning (CoI)
Dr. Elena Sabbi (CoI)
Dr. Linda L. Dressel (CoI)
Institution
Space Telescope Science Institute
Space Telescope Science Institute
Space Telescope Science Institute
Space Telescope Science Institute
E-Mail
mackenty@stsci.edu
gunning@stsci.edu
sabbi@stsci.edu
dressel@stsci.edu
VISITS
Visit Targets used in Visit
Configurations used in Visit
Orbits Used Last Orbit Planner Run
01
(1) OMEGA-CEN
WFC3/UVIS
5
23-Jun-2014 21:00:36.0
OP Current
with Visit?
yes
02
(1) OMEGA-CEN
WFC3/UVIS
1
23-Jun-2014 21:00:38.0
yes
03
(2) 47TUC
WFC3/UVIS
5
23-Jun-2014 21:00:43.0
yes
11 Total Orbits Used
ABSTRACT
Part of side switch activities.
The stability and uniformity of the low-frequency flat fields (L-flat) of the UVIS detector will be assessed by using multiple observations of the
globular cluster Omega Centauri (NGC5139), thus imaging moderately dense stellar fields. By placing the same star over different portions of the
detector and measuring relative changes in its brightness, it will be possible to determine local variations in the response of the UVIS detector.
1
Proposal 13222 (STScI Edit Number: 6, Created: Monday, June 23, 2014 8:00:45 PM EST) - Overview
A total of 3 different pointings will be used to evaluate the flat field stability in 11 UVIS band. For all the filters observations of Omega Centauri has
been collected in the past with similar exposure times. For each filter to be tested, the baseline consists of 3 pointings along the y axis with dither
steps of about 25% of the FOV, or 40. This observing strategy is useful also for CTE measurements.
ID: WF39
OBSERVING DESCRIPTION
Part of side switch activities.
Observations of Omega Centuari in 11 UVIS filters (F225W, F275W, F336W, F390W, F438W, F555W, F606W, F656N, F775W, F814W, and
F850LP) will be used to measure the filter-dependent low frequency fla-field corrections and stability. By measuring relative changes in brightness of
a star over different portions of the detector we will determine local variations in the UVIS detector response. The same data can be used to test the
accuracy of the geometric distorion correction, and the impact of CTE.
CALIBRATION JUSTIFICATION
The data will be used to generate on-orbit updates for the WFC3 calibration pipeline flatfield reference files.
ADDITIONAL COMMENTS
Usage of the same guide stars within each visit is desirable, but not a requirement.
Visit 03 - alternative target (47Tuc) is on hold pending the availability of Omega-Cen at program execution. Usage of this Visit needs to be
authorized by John MacKenty.
2
Fixed Targets
Visit
Proposal 13222 - Visit 01 - WFC3 SS UVIS Flat Field Uniformity
Proposal 13222, Visit 01, implementation
Diagnostic Status: No Diagnostics
Scientific Instruments: WFC3/UVIS
Special Requirements: SCHED 100%
#
Name
Target Coordinates
Targ. Coord. Corrections
(1)
OMEGA-CEN
RA: 13 26 46.2800 (201.6928333d)
Alt Name1: NGC5139
Dec: -47 28 44.60 (-47.47906d)
Equinox: J2000
Comments: This object was generated by the targetselector and retrieved from the NED database. Coordinates from Jay Anderson.
3
Tue Jun 24 01:00:45 GMT 2014
Fluxes
V=16.8+/-0.1
Miscellaneous
Reference Frame: ICRS
Exposures
Proposal 13222 - Visit 01 - WFC3 SS UVIS Flat Field Uniformity
#
1
Label
F606_1
Target
(1) OMEGA-CEN
Config,Mode,Aperture
WFC3/UVIS, ACCUM, UVIS
Spectral Els.
F606W
Opt. Params.
FLASH=12
Special Reqs.
Groups
GS ACQ SCENARI
O BASE1B3
2
F814_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F814W
FLASH=12
3
F275_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F275W
FLASH=12
4
F390_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F390W
FLASH=12
5
F438_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F438W
FLASH=12
6
F555_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F555W
FLASH=12
7
F850_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F850LP
FLASH=12
8
F775_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F775W
9
F225_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F225W
FLASH=12
10
F336_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F336W
FLASH=12
11
F656_1
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F656N
FLASH=12
12
F606_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F606W
FLASH=12
POS TARG 0,40
13
F275_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F275W
FLASH=12
POS TARG 0,40
14
F390_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F390W
FLASH=12
POS TARG 0,40
15
F438_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F438W
FLASH=12
POS TARG 0,40
16
F775_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F775W
17
F814_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F814W
FLASH=12
POS TARG 0,40
18
F555_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F555W
FLASH=12
POS TARG 0,40
19
F336_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F336W
FLASH=12
POS TARG 0,40
20
F850_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F850LP
FLASH=12
POS TARG 0,40
21
F225_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F225W
FLASH=12
POS TARG 0,40
22
F656_2
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F656N
FLASH=12
POS TARG 0,40
POS TARG 0,40
4
Exp. Time (Total)/[Actual Dur.]
40 Secs (40 Secs)
[==>]
40 Secs (40 Secs)
[==>]
800 Secs (800 Secs)
[==>]
350 Secs (350 Secs)
[==>]
350 Secs (350 Secs)
[==>]
40 Secs (40 Secs)
[==>]
60 Secs (60 Secs)
[==>]
350 Secs (350 Secs)
[==>]
900 Secs (900 Secs)
[==>]
350 Secs (350 Secs)
[==>]
500 Secs (500 Secs)
[==>]
40 Secs (40 Secs)
[==>]
800 Secs (800 Secs)
[==>]
350 Secs (350 Secs)
[==>]
350 Secs (350 Secs)
[==>]
350 Secs (350 Secs)
[==>]
40 Secs (40 Secs)
[==>]
40 Secs (40 Secs)
[==>]
350 Secs (350 Secs)
[==>]
60 Secs (60 Secs)
[==>]
900 Secs (900 Secs)
[==>]
500 Secs (500 Secs)
[==>]
Orbit
[1]
[1]
[1]
[1]
[1]
[1]
[2]
[2]
[2]
[2]
[2]
[3]
[3]
[3]
[3]
[3]
[3]
[4]
[4]
[4]
[4]
[4]
Proposal 13222 - Visit 01 - WFC3 SS UVIS Flat Field Uniformity
23
F606_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F606W
FLASH=12
POS TARG 0,-40
24
F390_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F390W
FLASH=12
POS TARG 0,-40
25
F438_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F438W
FLASH=12
POS TARG 0,-40
26
F814_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F814W
FLASH=12
POS TARG 0,-40
27
F275_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F275W
FLASH=12
POS TARG 0,-40
28
F775_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F775W
29
F555_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F555W
POS TARG 0,-40
FLASH=12
5
POS TARG 0,-40
40 Secs (40 Secs)
[==>]
350 Secs (350 Secs)
[==>]
350 Secs (350 Secs)
[==>]
40 Secs (40 Secs)
[==>]
800 Secs (800 Secs)
[==>]
350 Secs (350 Secs)
[==>]
40 Secs (40 Secs)
[==>]
[4]
[5]
[5]
[5]
[5]
[5]
[5]
Orbit Structure
Proposal 13222 - Visit 01 - WFC3 SS UVIS Flat Field Uniformity
6
Proposal 13222 - Visit 01 - WFC3 SS UVIS Flat Field Uniformity
7
Proposal 13222 - Visit 01 - WFC3 SS UVIS Flat Field Uniformity
8
Proposal 13222 - Visit 01 - WFC3 SS UVIS Flat Field Uniformity
9
Proposal 13222 - Visit 01 - WFC3 SS UVIS Flat Field Uniformity
10
Fixed Targets
Visit
Proposal 13222 - Visit 02 - WFC3 SS UVIS Flat Field Uniformity
Proposal 13222, Visit 02, implementation
Diagnostic Status: No Diagnostics
Scientific Instruments: WFC3/UVIS
Special Requirements: SCHED 100%; AFTER 01 BY 0 D TO 2 D
#
Name
Target Coordinates
Targ. Coord. Corrections
(1)
OMEGA-CEN
RA: 13 26 46.2800 (201.6928333d)
Alt Name1: NGC5139
Dec: -47 28 44.60 (-47.47906d)
Equinox: J2000
Comments: This object was generated by the targetselector and retrieved from the NED database. Coordinates from Jay Anderson.
Label
F336_3
Target
(1) OMEGA-CEN
Config,Mode,Aperture
WFC3/UVIS, ACCUM, UVIS
Spectral Els.
F336W
Opt. Params.
FLASH=12
Fluxes
V=16.8+/-0.1
2
F656_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F656N
FLASH=12
Special Reqs.
Groups
POS TARG 0,-40;
GS ACQ SCENARI
O BASE1B3
POS TARG 0,-40
3
F850_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F850LP
FLASH=12
POS TARG 0,-40
4
F225_3
(1) OMEGA-CEN
WFC3/UVIS, ACCUM, UVIS
F225W
FLASH=12
POS TARG 0,-40
Orbit Structure
Exposures
#
1
Tue Jun 24 01:00:46 GMT 2014
11
Miscellaneous
Reference Frame: ICRS
Exp. Time (Total)/[Actual Dur.]
350 Secs (350 Secs)
[==>]
500 Secs (500 Secs)
[==>]
60 Secs (60 Secs)
[==>]
900 Secs (900 Secs)
[==>]
Orbit
[1]
[1]
[1]
[1]
Fixed Targets
Visit
Proposal 13222 - Visit 03 - WFC3 SS UVIS Flat Field Uniformity
Proposal 13222, Visit 03, implementation
Diagnostic Status: No Diagnostics
Scientific Instruments: WFC3/UVIS
Special Requirements: SCHED 100%; ON HOLD
On Hold Comments: pending availability of omega-cen at time of execution. Team lead approval needed to execute this visit.
#
Name
Target Coordinates
Targ. Coord. Corrections
(2)
47TUC
RA: 00 22 31.0000 (5.6291667d)
Alt Name1: NGC104
Dec: -72 04 4.00 (-72.06778d)
Equinox: J2000
Comments: Field 6' W of cluster centre. Same target as used by ACS WFC L-flat calibration program.
12
Tue Jun 24 01:00:46 GMT 2014
Fluxes
V=14.4+/-0.1
Miscellaneous
Reference Frame: ICRS
Exposures
Proposal 13222 - Visit 03 - WFC3 SS UVIS Flat Field Uniformity
#
1
Label
Target
47 Tuc - F43 (2) 47TUC
8W 0 short
Config,Mode,Aperture
WFC3/UVIS, ACCUM, UVIS
Spectral Els.
F438W
2
47 Tuc - F43 (2) 47TUC
8W 0
WFC3/UVIS, ACCUM, UVIS
F438W
3
47 Tuc - F81 (2) 47TUC
4W 0 short
WFC3/UVIS, ACCUM, UVIS
F814W
4
47 Tuc - F81 (2) 47TUC
4W 0
WFC3/UVIS, ACCUM, UVIS
F814W
Opt. Params.
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO
5
47 Tuc - F60 (2) 47TUC
6W 0
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO
6
47 Tuc - F60 (2) 47TUC
6W 0 short
WFC3/UVIS, ACCUM, UVIS
F606W
7
47 Tuc - F60 (2) 47TUC
6W 1
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO
8
47 Tuc - F60 (2) 47TUC
6W 2
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO
9
47 Tuc - F60 (2) 47TUC
6W 3
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO
10
47 Tuc - F60 (2) 47TUC
6W 4
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO
11
47 Tuc - F60 (2) 47TUC
6W 5
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO
12
47 Tuc - F60 (2) 47TUC
6W 6
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO
13
47 Tuc - F60 (2) 47TUC
6W 7
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO
14
47 Tuc - F60 (2) 47TUC
6W 8
WFC3/UVIS, ACCUM, UVIS
F606W
CR-SPLIT=NO
15
47 Tuc - F81 (2) 47TUC
4W 1
WFC3/UVIS, ACCUM, UVIS
F814W
CR-SPLIT=NO
16
47 Tuc - F81 (2) 47TUC
4W 2
WFC3/UVIS, ACCUM, UVIS
F814W
CR-SPLIT=NO
17
47 Tuc - F81 (2) 47TUC
4W 3
WFC3/UVIS, ACCUM, UVIS
F814W
CR-SPLIT=NO
18
47 Tuc - F81 (2) 47TUC
4W 4
WFC3/UVIS, ACCUM, UVIS
F814W
CR-SPLIT=NO
19
47 Tuc - F81 (2) 47TUC
4W 5
WFC3/UVIS, ACCUM, UVIS
F814W
CR-SPLIT=NO
20
47 Tuc - F81 (2) 47TUC
4W 6
WFC3/UVIS, ACCUM, UVIS
F814W
CR-SPLIT=NO
21
47 Tuc - F81 (2) 47TUC
4W 7
WFC3/UVIS, ACCUM, UVIS
F814W
CR-SPLIT=NO
22
47 Tuc - F81 (2) 47TUC
4W 8
WFC3/UVIS, ACCUM, UVIS
F814W
CR-SPLIT=NO
13
Special Reqs.
Groups
Exp. Time (Total)/[Actual Dur.]
GS ACQ SCENARI Sequence 1-6 Non-In 35.0 Secs (35 Secs)
O BASE1B3
t in Visit 03
[==>]
Sequence 1-6 Non-In 350.0 Secs (350 Secs)
t in Visit 03
[==>]
Sequence 1-6 Non-In 35.0 Secs (35 Secs)
t in Visit 03
[==>]
Sequence 1-6 Non-In 350.0 Secs (350 Secs)
t in Visit 03
[==>]
Sequence 1-6 Non-In 350.0 Secs (350 Secs)
t in Visit 03
[==>]
Sequence 1-6 Non-In 35.0 Secs (35 Secs)
t in Visit 03
[==>]
POS TARG 40.5,0.0
350.0 Secs (350 Secs)
[==>]
POS TARG 40.5,-40
350.0 Secs (350 Secs)
.5
[==>]
POS TARG 0.0,-40.
350.0 Secs (350 Secs)
5
[==>]
POS TARG -40.5,-4
350.0 Secs (350 Secs)
0.5
[==>]
POS TARG -40.5,0.
350.0 Secs (350 Secs)
0
[==>]
POS TARG -40.5,40
350.0 Secs (350 Secs)
.5
[==>]
POS TARG 0.0,40.5
350.0 Secs (350 Secs)
[==>]
POS TARG 40.5,40.
350.0 Secs (350 Secs)
5
[==>]
POS TARG 40.5,0.0
350.0 Secs (350 Secs)
[==>]
POS TARG 40.5,-40
350.0 Secs (350 Secs)
.5
[==>]
POS TARG 0.0,-40.
350.0 Secs (350 Secs)
5
[==>]
POS TARG -40.5,-4
350.0 Secs (350 Secs)
0.5
[==>]
POS TARG -40.5,0.
350.0 Secs (350 Secs)
0
[==>]
POS TARG -40.5,40
350.0 Secs (350 Secs)
.5
[==>]
POS TARG 0.0,40.5
350.0 Secs (350 Secs)
[==>]
POS TARG 40.5,40.
350.0 Secs (350 Secs)
5
[==>]
Orbit
[1]
[1]
[1]
[1]
[1]
[1]
[2]
[2]
[2]
[2]
[2]
[2]
[3]
[3]
[3]
[3]
[3]
[3]
[4]
[4]
[4]
[4]
Proposal 13222 - Visit 03 - WFC3 SS UVIS Flat Field Uniformity
23
47 Tuc - F43 (2) 47TUC
8W 1
WFC3/UVIS, ACCUM, UVIS
F438W
24
47 Tuc - F43 (2) 47TUC
8W 2
WFC3/UVIS, ACCUM, UVIS
F438W
25
47 Tuc - F43 (2) 47TUC
8W 3
WFC3/UVIS, ACCUM, UVIS
F438W
26
47 Tuc - F43 (2) 47TUC
8W 4
WFC3/UVIS, ACCUM, UVIS
F438W
27
47 Tuc - F43 (2) 47TUC
8W 5
WFC3/UVIS, ACCUM, UVIS
F438W
28
47 Tuc - F43 (2) 47TUC
8W 6
WFC3/UVIS, ACCUM, UVIS
F438W
29
47 Tuc - F43 (2) 47TUC
8W 7
WFC3/UVIS, ACCUM, UVIS
F438W
30
47 Tuc - F43 (2) 47TUC
8W 8
WFC3/UVIS, ACCUM, UVIS
F438W
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
CR-SPLIT=NO;
FLASH=12
14
POS TARG 40.5,0.0
POS TARG 40.5,-40
.5
POS TARG 0.0,-40.
5
POS TARG -40.5,-4
0.5
POS TARG -40.5,0.
0
POS TARG -40.5,40
.5
POS TARG 0.0,40.5
POS TARG 40.5,40.
5
350.0 Secs
[==>]
350.0 Secs
[==>]
350.0 Secs
[==>]
350.0 Secs
[==>]
350.0 Secs
[==>]
350.0 Secs
[==>]
350.0 Secs
[==>]
350.0 Secs
[==>]
(350 Secs)
[4]
(350 Secs)
[4]
(350 Secs)
[5]
(350 Secs)
[5]
(350 Secs)
[5]
(350 Secs)
[5]
(350 Secs)
[5]
(350 Secs)
[5]
Orbit Structure
Proposal 13222 - Visit 03 - WFC3 SS UVIS Flat Field Uniformity
15
Proposal 13222 - Visit 03 - WFC3 SS UVIS Flat Field Uniformity
16
Proposal 13222 - Visit 03 - WFC3 SS UVIS Flat Field Uniformity
17
Proposal 13222 - Visit 03 - WFC3 SS UVIS Flat Field Uniformity
18
Proposal 13222 - Visit 03 - WFC3 SS UVIS Flat Field Uniformity
19