Proposal 12882 (STScI Edit Number: 0, Created: Thursday, July 12, 2012 8:20:28 PM EST) - Overview
12882 - Giant impacts on giant planets
Cycle: 20, Proposal Category: GO
(Availability Mode: SUPPORTED)
INVESTIGATORS
Name
Prof. Imke de Pater (PI) (Contact)
Dr. Michael H. Wong (CoI) (AdminUSPI)
Dr. Heidi B. Hammel (CoI)
Prof. John T. Clarke (CoI)
Dr. Amy Simon-Miller (CoI)
Dr. Agustin Sanchez-Lavega (CoI) (ESA Member)
Dr. Glenn S. Orton (CoI)
Institution
University of California - Berkeley
University of California - Berkeley
Space Science Institute
Boston University
NASA Goddard Space Flight Center
Universidad del Pais Vasco
Jet Propulsion Laboratory
E-Mail
imke@berkeley.edu
mikewong@astro.berkeley.edu
hbh@alum.mit.edu
jclarke@bu.edu
amy.simon@nasa.gov
wupsalaa@bi.ehu.es
go@scn.jpl.nasa.gov
VISITS
Visit Targets used in Visit
Configurations used in Visit
Orbits Used Last Orbit Planner Run
01
(2) SATURN-IMPACT-SITE
WFC3/UVIS
1
12-Jul-2012 21:19:55.0
OP Current
with Visit?
yes
02
(2) SATURN-IMPACT-SITE
WFC3/UVIS
1
12-Jul-2012 21:20:04.0
yes
03
(1) JUPITER-IMPACT-SITE
WFC3/UVIS
1
12-Jul-2012 21:20:13.0
yes
04
(1) JUPITER-IMPACT-SITE
WFC3/UVIS
1
12-Jul-2012 21:20:21.0
yes
4 Total Orbits Used
ABSTRACT
The 2009 impact on Jupiter caught the world by surprise and cast doubt on impactor flux estimates for the outer solar system. Enhanced amateur
planetary imaging techniques yield both high spatial resolution (enabling the 2009 impact debris field detection) and rapid frame rates (enabling the
1
Proposal 12882 (STScI Edit Number: 0, Created: Thursday, July 12, 2012 8:20:28 PM EST) - Overview
2010 impact flash detections and lightcurve measurements).
We propose a Target of Opportunity program to image future impacts on Jupiter and Saturn. To remove the possibility of impact cloud nondetections, the program will be triggered only if an existing impact debris field is seen, an object on a collision course with Jupiter or Saturn is
discovered, or an impact light curve is measured with an estimated total energy large enough to generate an impact cloud in a giant planet
atmosphere.
HST provides the only way to image these events in the ultraviolet, providing information on aerosol altitudes and on smaller particles that are less
visible to ground-based infrared observations. High-resolution imaging with proper timing (not achievable from the ground) is required to measure
precisely both the velocity fields of impact sites and the optical spectrum of impact debris. HST observations of past impacts on Jupiter have also
served both as cornerstones of science investigations at other wavelengths and as vehicles for effective public outreach.
Large outer solar system impacts are governed by the same physics as in the terrestrial events that dominate the impact threat to humans. Studying
the behavior of impactors of various sizes and compositions, as they enter the atmosphere at varying angles and speeds, will better quantify terrestrial
impact hazards.
OBSERVING DESCRIPTION
Observe impact site on target after an impact has been predicted or observed. Target may be Jupiter or Saturn.
Quad subarray (2k x 2k) UVIS imaging data will be acquired in quadrants A and D, due to location of important methane-band filters.
An event will trigger 2 visits, with visit #2 following visit #1 by one target planet rotation (i.e., 6 orbits later for Jupiter or 7 orbits later for Saturn).
Because we include visits for either Jupiter or Saturn, there are 4 visits in the Phase II even though we were awarded only 2 visits.
Exposure times must be adjusted once the impact is known, to account for the unpredictable planetary brightness due to variable heliocentric
distance.
2
Solar System Targets
Visit
Proposal 12882 - SAT-1 (01) - Giant impacts on giant planets
Proposal 12882, SAT-1 (01)
Diagnostic Status: No Diagnostics
Scientific Instruments: WFC3/UVIS
Special Requirements: PCS MODE FINE; DROP TO GYRO IF NECESSARY NO REACQ; GYRO MODE 3GOBAD
Comments: saturn visit #1 of 2
#
Name
Level 1
Level 2
Level 3
(2)
SATURN-IMPACT- STD=SATURN
TYPE=PGRAPHIC,LONG=0,LAT=0
SITE
Comments: NEED TO REFINE LEVEL 2 COORDINATES AFTER IMPACT TAKES PLACE (or after impact location is predicted prior to impact)
3
Fri Jul 13 01:20:29 GMT 2012
Window
SEP OF SATURN-IMPACT-SITE
RHEA FROM EARTH GT 19",
SEP OF SATURN-IMPACT-SITE
TITAN FROM EARTH GT 19"
Ephem Center
EARTH
Proposal 12882 - SAT-1 (01) - Giant impacts on giant planets
Exposures
#
1
Label
Target
Config,Mode,Aperture
FQ889N--A (2) SATURN-IMPA WFC3/UVIS, ACCUM,
CT-SITE
UVIS-QUAD-SUB
Spectral Els.
FQ889N
Opt. Params.
CR-SPLIT=NO
Special Reqs.
Groups
Exp. Time/[Actual Dur.]
300 Secs
[==>]
Orbit
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
2
F275W--A (2) SATURN-IMPA WFC3/UVIS, ACCUM,
F275W
CR-SPLIT=NO
140 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
3
F631N--A
(2) SATURN-IMPA WFC3/UVIS, ACCUM,
F631N
CR-SPLIT=NO
14 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
4
F502N--A
(2) SATURN-IMPA WFC3/UVIS, ACCUM,
F502N
CR-SPLIT=NO
12 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
5
F343N--A
(2) SATURN-IMPA WFC3/UVIS, ACCUM,
F343N
CR-SPLIT=NO
20 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
6
F225W--A (2) SATURN-IMPA WFC3/UVIS, ACCUM,
F225W
CR-SPLIT=NO
300 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
7
FQ889N--A (2) SATURN-IMPA WFC3/UVIS, ACCUM,
FQ889N
CR-SPLIT=NO
300 Secs
CT-SITE
UVIS-QUAD-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
8
FQ727N--D (2) SATURN-IMPA WFC3/UVIS, ACCUM,
FQ727N
CR-SPLIT=NO
30 Secs
CT-SITE
UVIS-QUAD-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
4
Orbit Structure
Proposal 12882 - SAT-1 (01) - Giant impacts on giant planets
5
Solar System Targets
Visit
Proposal 12882 - SAT-2 (02) - Giant impacts on giant planets
Proposal 12882, SAT-2 (02)
Fri Jul 13 01:20:33 GMT 2012
Diagnostic Status: No Diagnostics
Scientific Instruments: WFC3/UVIS
Special Requirements: PCS MODE FINE; DROP TO GYRO IF NECESSARY NO REACQ; GYRO MODE 3GOBAD; AFTER 01 BY 6 Orbits TO 7 Orbits
Comments: saturn visit #2 of 2
#
Name
Level 1
Level 2
Level 3
Window
Ephem Center
(2)
SATURN-IMPACT- STD=SATURN
TYPE=PGRAPHIC,LONG=0,LAT=0
SEP OF SATURN-IMPACT-SITE
EARTH
SITE
RHEA FROM EARTH GT 19",
SEP OF SATURN-IMPACT-SITE
TITAN FROM EARTH GT 19"
Comments: NEED TO REFINE LEVEL 2 COORDINATES AFTER IMPACT TAKES PLACE (or after impact location is predicted prior to impact)
6
Proposal 12882 - SAT-2 (02) - Giant impacts on giant planets
Exposures
#
1
Label
Target
Config,Mode,Aperture
FQ889N--A (2) SATURN-IMPA WFC3/UVIS, ACCUM,
CT-SITE
UVIS-QUAD-SUB
Spectral Els.
FQ889N
Opt. Params.
CR-SPLIT=NO
Special Reqs.
Groups
Exp. Time/[Actual Dur.]
300 Secs
[==>]
Orbit
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
2
F275W--A (2) SATURN-IMPA WFC3/UVIS, ACCUM,
F275W
CR-SPLIT=NO
140 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
3
F631N--A
(2) SATURN-IMPA WFC3/UVIS, ACCUM,
F631N
CR-SPLIT=NO
14 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
4
F502N--A
(2) SATURN-IMPA WFC3/UVIS, ACCUM,
F502N
CR-SPLIT=NO
12 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
5
F343N--A
(2) SATURN-IMPA WFC3/UVIS, ACCUM,
F343N
CR-SPLIT=NO
20 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
6
F225W--A (2) SATURN-IMPA WFC3/UVIS, ACCUM,
F225W
CR-SPLIT=NO
300 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
7
FQ889N--A (2) SATURN-IMPA WFC3/UVIS, ACCUM,
FQ889N
CR-SPLIT=NO
300 Secs
CT-SITE
UVIS-QUAD-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
8
FQ727N--D (2) SATURN-IMPA WFC3/UVIS, ACCUM,
FQ727N
CR-SPLIT=NO
30 Secs
CT-SITE
UVIS-QUAD-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
7
Orbit Structure
Proposal 12882 - SAT-2 (02) - Giant impacts on giant planets
8
Solar System Targets
Visit
Proposal 12882 - JUP-1 (03) - Giant impacts on giant planets
Proposal 12882, JUP-1 (03)
Diagnostic Status: No Diagnostics
Scientific Instruments: WFC3/UVIS
Special Requirements: PCS MODE FINE; DROP TO GYRO IF NECESSARY NO REACQ; GYRO MODE 3GOBAD; SCHED 100%
Comments: jupiter visit #1 of 2
#
Name
Level 1
Level 2
Level 3
(1)
JUPITER-IMPACT- STD=JUPITER
TYPE=PGRAPHIC,LONG=0,LAT=0
SITE
Comments: NEED TO REFINE LEVEL 2 COORDINATES AFTER IMPACT TAKES PLACE (or after impact location is predicted prior to impact)
9
Fri Jul 13 01:20:34 GMT 2012
Window
Ephem Center
NOT SEP OF JUPITER CALLISTO
EARTH
FROM EARTH GT 50",
SEP OF JUPITER IO FROM EARTH
GT 50",
SEP OF JUPITER EUROPA FROM
EARTH GT 50",
SEP OF JUPITER GANYMEDE
FROM EARTH GT 50"
Proposal 12882 - JUP-1 (03) - Giant impacts on giant planets
Exposures
#
1
Label
Target
Config,Mode,Aperture
FQ727N--D (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
CT-SITE
UVIS-QUAD-SUB
Spectral Els.
FQ727N
Opt. Params.
CR-SPLIT=NO
Special Reqs.
Groups
Exp. Time/[Actual Dur.]
8 Secs
[==>]
Orbit
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
2
FQ889N--A (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
FQ889N
CR-SPLIT=NO
60 Secs
CT-SITE
UVIS-QUAD-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
3
F275W--A (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F275W
CR-SPLIT=NO
40 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
4
F631N--A
(1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F631N
CR-SPLIT=NO
4 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
5
F502N--A
(1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F502N
CR-SPLIT=NO
3.4 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
6
F395N--A
(1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F395N
CR-SPLIT=NO
9 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
7
F225W--A (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F225W
CR-SPLIT=NO
150 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
8
F343N--A
(1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F343N
CR-SPLIT=NO
5.5 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
9
FQ889N--A (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
FQ889N
CR-SPLIT=NO
60 Secs
CT-SITE
UVIS-QUAD-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
10
Orbit Structure
Proposal 12882 - JUP-1 (03) - Giant impacts on giant planets
11
Solar System Targets
Visit
Proposal 12882 - JUP-2 (04) - Giant impacts on giant planets
Proposal 12882, JUP-2 (04)
Fri Jul 13 01:20:36 GMT 2012
Diagnostic Status: No Diagnostics
Scientific Instruments: WFC3/UVIS
Special Requirements: PCS MODE FINE; DROP TO GYRO IF NECESSARY NO REACQ; GYRO MODE 3GOBAD; SCHED 100%; AFTER 03 BY 5.9 Orbits TO 6.1 Orbits
Comments: jupiter visit #2 of 2
#
Name
Level 1
Level 2
Level 3
Window
Ephem Center
(1)
JUPITER-IMPACT- STD=JUPITER
TYPE=PGRAPHIC,LONG=0,LAT=0
NOT SEP OF JUPITER CALLISTO
EARTH
SITE
FROM EARTH GT 50",
SEP OF JUPITER IO FROM EARTH
GT 50",
SEP OF JUPITER EUROPA FROM
EARTH GT 50",
SEP OF JUPITER GANYMEDE
FROM EARTH GT 50"
Comments: NEED TO REFINE LEVEL 2 COORDINATES AFTER IMPACT TAKES PLACE (or after impact location is predicted prior to impact)
12
Proposal 12882 - JUP-2 (04) - Giant impacts on giant planets
Exposures
#
1
Label
Target
Config,Mode,Aperture
FQ727N--D (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
CT-SITE
UVIS-QUAD-SUB
Spectral Els.
FQ727N
Opt. Params.
CR-SPLIT=NO
Special Reqs.
Groups
Exp. Time/[Actual Dur.]
8 Secs
[==>]
Orbit
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
2
FQ889N--A (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
FQ889N
CR-SPLIT=NO
60 Secs
CT-SITE
UVIS-QUAD-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
3
F275W--A (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F275W
CR-SPLIT=NO
40 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
4
F631N--A
(1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F631N
CR-SPLIT=NO
4 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
5
F502N--A
(1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F502N
CR-SPLIT=NO
3.4 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
6
F395N--A
(1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F395N
CR-SPLIT=NO
9 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
7
F225W--A (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F225W
CR-SPLIT=NO
150 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
8
F343N--A
(1) JUPITER-IMPA WFC3/UVIS, ACCUM,
F343N
CR-SPLIT=NO
5.5 Secs
CT-SITE
UVIS1-2K2A-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
9
FQ889N--A (1) JUPITER-IMPA WFC3/UVIS, ACCUM,
FQ889N
CR-SPLIT=NO
60 Secs
CT-SITE
UVIS-QUAD-SUB
[==>]
[1]
Comments: EXPOSURE TIMES MUST BE REFINED !!
exposure time here is preliminary because target's heliocentric distance at time of observations is not known. once the timing of the impact is known, exposure times must be adjusted to maximize s/n ratio, avoid satura
tion, and optimize observational efficiency.
13
Orbit Structure
Proposal 12882 - JUP-2 (04) - Giant impacts on giant planets
14