0
----- Attempting Submission 1 (Wed Jul 20 05:27:13 GMT 2016) -----
Imaging Polarimetry of Light Echoes around SN 2014J
Because of the proximity of the Type Ia SN 2014J, HST can resolve light echoes from dust with an impact parameter of just a few light years. Only dust so close to the supernova can scatter light at large angles into the line of sight. Therefore, polarization of a light echo is an ambiguous criterion for the identification of nearby matter, and such large-angle scattering will induce maximum polarization ~ 50%, which is not expected for double-degenerate progenitors. Polarized echoes also offer the unique opportunity to determine separately the extinction and scattering properties of the dust, opening the door to understanding the enigmatic extinction properties observed with many SNe Ia. Since high-polarization echoes arise from large-angle scattering, the involved dust must be on nearly the same celestial sphere as the SN. This enables a simple geometric absolute distance measurement. We aim at advancing all three of these important topics simultaneously through imaging polarimetry of SN 2014J at 4 epochs.
This program attempts to acquire imaging polarization of SN2014J using ACS/WFC. In cycle 24, we intend to observe at two separate epochs at around Oct. 10, 2016, and Apr. 30, 2017. The polarization data will be observed in three filters: F475W, F606W, and F775W. For each filter three polarizers POL0V, POL120V, and POL60V are used to aqcuire a complete polarization data set. Multiple exposures are required for cosmic ray rejection. The position angle of the spacecraft shall be kept at either 308.71 or 112.21 degrees, to be consistent with our previous observations in #13717.
ISM AND CIRCUMSTELLAR MATTER
12
false
false
false
false
false
false
SUPPORTED
ISM
DUST LANE
This object was generated by the targetselector and retrieved from the SIMBAD database.This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
J2000
ACS/WFC
Imaging
No
Yes
F475W
ACS/WFC
Imaging
No
Yes
F606W
ACS/WFC
Imaging
No
Yes
F775W
ACS/WFC
Imaging
No
Yes
F475W
ACS/WFC
Imaging
No
Yes
F606W
ACS/WFC
Imaging
No
Yes
F775W
ACS/WFC
Imaging
No
Yes
F475W
ACS/WFC
Imaging
No
Yes
F606W
ACS/WFC
Imaging
No
Yes
F775W
ACS/WFC
Imaging
No
Yes
F475W
ACS/WFC
Imaging
No
Yes
F606W
ACS/WFC
Imaging
No
Yes
F775W
POS-TARG
DITHER
3.011
LINE
false
false
4
85.28
ACS-WFC-DITHER-LINE
1
false
POS-TARG
DITHER
3.011
LINE
false
false
3
85.28
ACS-WFC-DITHER-LINE
2
false
Timing link suitability includes constraints ([Sequence (01 02 03) within 0.6 days] [02 After 01 by at most 1.0 days] [03 After 01 by at most 1.0 days] [04 After 01 by at most 2.0 days])
Hst Same orient constraint links visits (01 02 03 04)
The scheduling data was generated by CASM 24.2.
CASM was run in Phase II mode.
/home/ngc4594/APT_24.2/OP-cache/14663_1-v01.xml
(Tic-Visit
:proposal-id 14663
:visit-id "01"
:proposal-version -1
:trans-version "20160601"
:date "19-Jul-2016 10:57:55.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 568608
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14663
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14663
:visit-id "01"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3223
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14663
:visit-id "01"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3166
:al-overhead-at-end 0
:internal-dur-at-end 347
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([Sequence (01 02 03) within 0.6 days] [02 After 01 by at most 1.0 days])
Hst Same orient constraint links visits (01 02 03 04)
The scheduling data was generated by CASM 24.2.
CASM was run in Phase II mode.
/home/ngc4594/APT_24.2/OP-cache/14663_1-v02.xml
(Tic-Visit
:proposal-id 14663
:visit-id "02"
:proposal-version -1
:trans-version "20160601"
:date "19-Jul-2016 10:57:58.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 568608
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14663
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14663
:visit-id "02"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3223
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14663
:visit-id "02"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3166
:al-overhead-at-end 0
:internal-dur-at-end 347
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([Sequence (01 02 03) within 0.6 days] [03 After 01 by at most 1.0 days])
Hst Same orient constraint links visits (01 02 03 04)
The scheduling data was generated by CASM 24.2.
CASM was run in Phase II mode.
/home/ngc4594/APT_24.2/OP-cache/14663_1-v03.xml
(Tic-Visit
:proposal-id 14663
:visit-id "03"
:proposal-version -1
:trans-version "20160601"
:date "19-Jul-2016 10:57:51.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 568608
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14663
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14663
:visit-id "03"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3223
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14663
:visit-id "03"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3166
:al-overhead-at-end 0
:internal-dur-at-end 347
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([04 After 01 by at most 2.0 days])
Hst Same orient constraint links visits (01 02 03 04)
The scheduling data was generated by CASM 24.2.
CASM was run in Phase II mode.
/home/ngc4594/APT_24.2/OP-cache/14663_1-v04.xml
(Tic-Visit
:proposal-id 14663
:visit-id "04"
:proposal-version -1
:trans-version "20160601"
:date "19-Jul-2016 11:04:13.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 1492368
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14663
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14663
:visit-id "04"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3220
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14663
:visit-id "04"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3331
:al-overhead-at-end 0
:internal-dur-at-end 347
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([Sequence (05 06 07) within 0.6 days] [06 After 05 by at most 1.0 days] [07 After 05 by at most 1.0 days] [08 After 05 by at most 2.0 days])
Hst Same orient constraint links visits (05 06 07 08)
The scheduling data was generated by CASM 24.2.
CASM was run in Phase II mode.
/home/ngc4594/APT_24.2/OP-cache/14663_1-v05.xml
(Tic-Visit
:proposal-id 14663
:visit-id "05"
:proposal-version -1
:trans-version "20160601"
:date "19-Jul-2016 11:01:26.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 568608
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14663
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14663
:visit-id "05"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3223
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14663
:visit-id "05"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3166
:al-overhead-at-end 0
:internal-dur-at-end 347
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([Sequence (05 06 07) within 0.6 days] [06 After 05 by at most 1.0 days])
Hst Same orient constraint links visits (05 06 07 08)
The scheduling data was generated by CASM 24.2.
CASM was run in Phase II mode.
/home/ngc4594/APT_24.2/OP-cache/14663_1-v06.xml
(Tic-Visit
:proposal-id 14663
:visit-id "06"
:proposal-version -1
:trans-version "20160601"
:date "19-Jul-2016 11:01:22.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 568608
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14663
:visit-id "06"
:obset-id "06"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14663
:visit-id "06"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3223
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14663
:visit-id "06"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3166
:al-overhead-at-end 0
:internal-dur-at-end 347
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([Sequence (05 06 07) within 0.6 days] [07 After 05 by at most 1.0 days])
Hst Same orient constraint links visits (05 06 07 08)
The scheduling data was generated by CASM 24.2.
CASM was run in Phase II mode.
/home/ngc4594/APT_24.2/OP-cache/14663_1-v07.xml
(Tic-Visit
:proposal-id 14663
:visit-id "07"
:proposal-version -1
:trans-version "20160601"
:date "19-Jul-2016 10:59:38.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 568608
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14663
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14663
:visit-id "07"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3223
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14663
:visit-id "07"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3166
:al-overhead-at-end 0
:internal-dur-at-end 347
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([08 After 05 by at most 2.0 days])
Hst Same orient constraint links visits (05 06 07 08)
The scheduling data was generated by CASM 24.2.
CASM was run in Phase II mode.
/home/ngc4594/APT_24.2/OP-cache/14663_1-v08.xml
(Tic-Visit
:proposal-id 14663
:visit-id "08"
:proposal-version -1
:trans-version "20160601"
:date "19-Jul-2016 11:04:17.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "27"
:si-bright-earth-limb-angle 20.0
:data-volume 1492368
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14663
:visit-id "08"
:obset-id "08"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14663
:visit-id "08"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3220
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14663
:visit-id "08"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3331
:al-overhead-at-end 0
:internal-dur-at-end 347
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3556
:pcs-gap 0
)
true
2
0