2008 Passage of Jupiter's Great Red Spot and Oval BA
Jupiter's largest anticyclonic storm, the Great Red Spot (GRS), drifts slowly westward relative to the radio rotation rate of the planet (System III W. longitude). In contrast, the next largest storm, Oval BA (a.k.a. the Little Red Spot or LRS), drifts slowly eastward. The relative drift of the two is approximately 0.5 deg/day, resulting in a passage of the storms every two years. The GRS sits at ~22 deg. S planetographic latitude, while the LRS resides at ~33 deg. S latitude. Both vortices deflect nearby eastward and westward winds jets around their periphery, and are somewhat confined to their latitude bands by the alternating, and nearly constant, zonal wind field. However, they do oscillate slightly in latitude, particularly near the times of a passage, in part because the deflected wind jets push to keep the spots separated. It is during these passages that the LRS, and its predecessor white ovals, is most likely to show changes in size and morphology, which are related to the internal wind fields and regulate the vertical cloud structure of the vortex. For example, GRS passages in 1998 and 2000 preceded the merger of the three white ovals into the single large Oval BA, after the ovals and intervening cyclonic cells were deflected by the GRS.
We propose to study the 2008 passage to look for changes in internal vortex winds, nearby zonal winds and vortex upper cloud structure, particularly in particle size and opacity, using five orbits of WFPC2 and two orbits of NICMOS. These data will be combined with a multitude of planned ground-based coverage to offer an unprecedented view of a GRS/Oval passage, which will give insight on cloud structure, dynamics, and possibly even water abundance below the cloud decks (water abundance governs the distance of interaction between the two spots). HST is required to provide adequate spatial resolution and wavelength coverage while observing the passage. The 2008 passage is expected to be especially important, as Jupiter underwent a global upheaval in 2007, with disturbances near the GRS and LRS. This upheaval began after the normal Cycle 16 proposal deadline, raising the priority of these observations enough to warrant a request for HST time.
Observe the passage of the GRS and Oval BA. Predicted closest approach is June 28, 2006 at Longtude 110 deg W (System III). NICMOS observations will be centered on 25 S planetographic latitude and mosaic the region from west to east. WFPC2 observations should be biased south, filling as much of the FOV as possible, while also including planetary limb for planetary navigation purposes.
SOLAR SYSTEM
0
false
0.0
0.0
false
false
false
false
false
SUPPORTED
SOLAR SYSTEM
Body central longitude is 110 deg W system III, but want to start west of CML for mosaic, so target 190W. Timing of 10 hrs after Visit 2, should ensure 110 W is on CML. Latitudes of interest are -20 to -35 deg. S. Planetographic.
PLANET
Jupiter
STD=JUPITER
TYPE=PGRAPHIC,LONG=110,LAT=-25
EARTH
SOLAR SYSTEM
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic.
PLANET
Jupiter
STD=JUPITER
EARTH
SOLAR SYSTEM
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic.
PLANET
Jupiter
STD=JUPITER
EARTH
SOLAR SYSTEM
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic.
PLANET
Jupiter
STD=JUPITER
SEP OF JUPITER-POSTPASSAGE-WFPC2 IO FROM EARTH GT 0"
EARTH
SOLAR SYSTEM
Body central longitude is 110 deg W system III, but want to start west of CML for mosaic, so target 190W. Timing of 10 hrs after Visit 6, should ensure 110 W is on CML. Latitudes of interest are -20 to -35 deg. S. Planetographic.
PLANET
Jupiter
STD=JUPITER
TYPE=PGRAPHIC,LONG=110,LAT=-25
EARTH
WFPC2
Imaging
No
F343N
WFPC2
Imaging
No
F410M
WFPC2
Imaging
No
F673N
WFPC2
Imaging
No
FQCH4P15
WFPC2
Imaging
No
F375N
WFPC2
Imaging
No
F390N
WFPC2
Imaging
No
F502N
WFPC2
Imaging
No
F437N
WFPC2
Imaging
No
F469N
WFPC2
Imaging
No
F255W
WFPC2
Imaging
No
F343N
WFPC2
Imaging
No
F410M
WFPC2
Imaging
No
F673N
WFPC2
Imaging
No
FQCH4P15
WFPC2
Imaging
No
F375N
WFPC2
Imaging
No
F390N
WFPC2
Imaging
No
F437N
WFPC2
Imaging
No
F502N
WFPC2
Imaging
No
F469N
WFPC2
Imaging
No
F255W
NIC1
Imaging
No
No
F145M
NIC1
Imaging
No
No
F187N
NIC2
Imaging
No
No
F187N
NIC2
Imaging
No
No
F212N
NIC1
Imaging
No
No
F166N
WFPC2
Imaging
No
F343N
WFPC2
Imaging
No
F410M
WFPC2
Imaging
No
F673N
WFPC2
Imaging
No
FQCH4P15
WFPC2
Imaging
No
F375N
WFPC2
Imaging
No
F390N
WFPC2
Imaging
No
F437N
WFPC2
Imaging
No
F502N
WFPC2
Imaging
No
F469N
WFPC2
Imaging
No
F255W
WFPC2
Imaging
No
F343N
WFPC2
Imaging
No
F410M
WFPC2
Imaging
No
F673N
WFPC2
Imaging
No
FQCH4P15
WFPC2
Imaging
No
F375N
WFPC2
Imaging
No
F390N
WFPC2
Imaging
No
F437N
WFPC2
Imaging
No
F502N
WFPC2
Imaging
No
F469N
WFPC2
Imaging
No
F255W
WFPC2
Imaging
No
F343N
WFPC2
Imaging
No
F410M
WFPC2
Imaging
No
F673N
WFPC2
Imaging
No
FQCH4P15
WFPC2
Imaging
No
F502N
WFPC2
Imaging
No
F437N
WFPC2
Imaging
No
F390N
WFPC2
Imaging
No
F375N
WFPC2
Imaging
No
F469N
WFPC2
Imaging
No
F255W
NIC1
Imaging
No
No
F145M
NIC1
Imaging
No
No
F166N
NIC1
Imaging
No
No
F187N
NIC2
Imaging
No
No
F187N
NIC2
Imaging
No
No
F212N
CELESTIAL
MOSAIC
8
need to check orientation.
Want 6-point east-west mosaic at 25 S with NIC1
LINE
false
true
6
260
LINE
1
false
CELESTIAL
MOSAIC
10
need to check orientation
want 4-point East-West mosaic covering 25 S wth NIC2
LINE
false
false
4
260
LINE
2
false
CELESTIAL
BACKGROUND
100
dither to deep space
LINE
false
false
2
260
LINE
3
false
Using ephemeris for target 11498-01-JUPITER-PREPASSAGE-WFPC2
ephemeris data for target 11498-01-JUPITER-PREPASSAGE-WFPC2 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.092 to 08.364. ephemeris interval: 08.091 to 09.360
Timing link suitability includes constraints ([02 After 01 by 0.4 to 0.5 days])
The scheduling data was generated by CASM 17.0.
CASM was run in Phase II mode.
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic, but final pointing determination will be made based on viewing MOSS plots, etc.
1210834166000
260.73344638530307
(Tic-Visit
:proposal-id 11498
:visit-id "01"
:proposal-version -1
:trans-version "20080515"
:date "18-Jun-2008 12:43:22.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "26"
:si-bright-earth-limb-angle 20.0
:data-volume 582608
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11498
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11498
:visit-id "01"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2889
: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 3132
:pcs-gap 0
)
true
1
1
Using ephemeris for target 11498-02-JUPITER-PREPASSAGE-WFPC2
ephemeris data for target 11498-02-JUPITER-PREPASSAGE-WFPC2 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.092 to 08.364. ephemeris interval: 08.091 to 09.360
Timing link suitability includes constraints ([02 After 01 by 0.4 to 0.5 days] [03 After 02 by 0.4 to 0.5 days])
The scheduling data was generated by CASM 17.0.
CASM was run in Phase II mode.
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic, but final pointing determination will be made based on viewing MOSS plots, etc.
1210874464000
260.7382292954136
(Tic-Visit
:proposal-id 11498
:visit-id "02"
:proposal-version -1
:trans-version "20080515"
:date "18-Jun-2008 12:43:24.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "26"
:si-bright-earth-limb-angle 20.0
:data-volume 582608
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11498
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11498
:visit-id "02"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2889
: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 3132
:pcs-gap 0
)
true
1
1
Using ephemeris for target 11498-03-JUPITER-PREPASSAGE-NICMOS
ephemeris data for target 11498-03-JUPITER-PREPASSAGE-NICMOS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.092 to 08.364. ephemeris interval: 08.091 to 09.360
Timing link suitability includes constraints ([03 After 02 by 0.4 to 0.5 days])
The scheduling data was generated by CASM 17.0.
CASM was run in Phase II mode.
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic, but final pointing determination will be made based on viewing MOSS plots, etc. If possible, make contiguous to Visit 2 (space such that 110 W is off the CML, slightly for each of Visit 2 and 3. If this is not possible, make Visit 3 10 hrs before Visit 1 or after Visit 2).
1210909005000
252.51
(Tic-Visit
:proposal-id 11498
:visit-id "03"
:proposal-version -1
:trans-version "20080515"
:date "18-Jun-2008 12:43:31.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "23"
:si-bright-earth-limb-angle 20.0
:data-volume 483664
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11498
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11498
:visit-id "03"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2771
:al-overhead-at-end 0
:internal-dur-at-end 92
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3132
:pcs-gap 0
)
true
1
0
using pattern 1
using pattern 1
using pattern 1
using pattern 3
using pattern 3
using pattern 3
using pattern 2
using pattern 2
using pattern 3
using pattern 3
Using ephemeris for target 11498-04-JUPITER-PASSAGE
ephemeris data for target 11498-04-JUPITER-PASSAGE does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 08.106 to 09.152. ephemeris interval: 08.153 to 10.152
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic, but final pointing determination will be made based on viewing MOSS plots, etc.
1214660408000
262.89097588515835
(Tic-Visit
:proposal-id 11498
:visit-id "04"
:proposal-version -1
:trans-version "20080515"
:date "18-Jun-2008 12:43:34.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "26"
:si-bright-earth-limb-angle 20.0
:data-volume 537792
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11498
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11498
:visit-id "04"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2709
: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 3132
:pcs-gap 0
)
true
1
0
Using ephemeris for target 11498-05-JUPITER-POSTPASSAGE-WFPC2
ephemeris data for target 11498-05-JUPITER-POSTPASSAGE-WFPC2 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 08.106 to 09.152. ephemeris interval: 08.152 to 10.152
Timing link suitability includes constraints ([06 After 05 by 0.4 to 0.5 days])
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic, but final pointing determination will be made based on viewing MOSS plots, etc.
1215518076000
250.0
(Tic-Visit
:proposal-id 11498
:visit-id "05"
:proposal-version -1
:trans-version "20080624"
:date "27-Jun-2008 16:54:22.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "26"
:si-bright-earth-limb-angle 20.0
:data-volume 537792
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11498
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11498
:visit-id "05"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2709
: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 3132
:pcs-gap 0
)
true
1
0
Using ephemeris for target 11498-06-JUPITER-POSTPASSAGE-WFPC2
ephemeris data for target 11498-06-JUPITER-POSTPASSAGE-WFPC2 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 08.106 to 09.152. ephemeris interval: 08.152 to 10.152
Timing link suitability includes constraints ([06 After 05 by 0.4 to 0.5 days] [07 After 06 by 0.4 to 0.5 days])
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic, but final pointing determination will be made based on viewing MOSS plots, etc.
1215552689000
300.0
(Tic-Visit
:proposal-id 11498
:visit-id "06"
:proposal-version -1
:trans-version "20080624"
:date "27-Jun-2008 16:56:11.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "26"
:si-bright-earth-limb-angle 20.0
:data-volume 537792
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11498
:visit-id "06"
:obset-id "06"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11498
:visit-id "06"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 2709
: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 3132
:pcs-gap 0
)
true
1
0
Using ephemeris for target 11498-07-JUPITER-POSTPASSAGE-NICMOS
ephemeris data for target 11498-07-JUPITER-POSTPASSAGE-NICMOS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 08.106 to 09.152. ephemeris interval: 08.153 to 10.151
Timing link suitability includes constraints ([07 After 06 by 0.4 to 0.5 days])
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
Target central longitude is 110 deg W system III. Latitudes of interest are -20 to -35 deg. S. Planetographic, but final pointing determination will be made based on viewing MOSS plots, etc. If possible, make contiguous to Visit 6 (space such that 110 W is off the CML, slightly for each of Visit 6 and 7. If this is not possible, make Visit 7 10 hrs before Visit 5 or after Visit 6).
1215587159000
241.0
(Tic-Visit
:proposal-id 11498
:visit-id "07"
:proposal-version -1
:trans-version "20080515"
:date "18-Jun-2008 12:46:22.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "23"
:si-bright-earth-limb-angle 20.0
:data-volume 251760
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11498
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11498
:visit-id "07"
:orbit-number 1
:pcs-time 355
:si-vis-utilization 1899
:al-overhead-at-end 0
:internal-dur-at-end 130
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3132
:pcs-gap 0
)
false
1
0
using pattern 1
using pattern 2
using pattern 2
using pattern 3
using pattern 3