Planetary auroral emissions are critical indicators of how the magnetospheres of the planets work. Recently, a new component of Saturn’s auroral emissions, i.e. high latitude auroras inside the main auroral oval, have been observed by the Cassini spacecraft during otherwise quiet auroral conditions. Such high latitude auroras are of immense interest since they occur on magnetic flux tubes connected to a region that is key to the overall dynamics of the system, the magnetotail, and where if conventional theories regarding Saturn’s magnetosphere are correct there should not be any auroras. These faint auroral emissions have not been previously observed by the Hubble Space Telescope (HST). However, the unique oblique viewing geometry afforded during early 2009 due to Saturn’s orbital longitude will result in the apparent brightening of these polar emissions due to the limb-brightening effect, with the result that they may be observable by HST for the first ever time. In addition, at this time the Cassini spacecraft will be in a high latitude orbit, with a trajectory that will take it through these magnetic flux tubes, providing essential simultaneous in situ data. This is the last time Cassini will be in such an orbit during its mission as currently scheduled and HST is the only instrument capable of obtaining sustained long-term observations of Saturn’s auroras. These observations will address the following: Does Saturn exhibit high latitude UV auroras observable by HST? Where do these auroras occur, and at what altitude? How do these auroras behave over time? How variable are they? Are they periodic? How do they behave with respect to other auroral components? What processes drive these auroras? Are these auroras generated by processes internal to the magnetosphere or are they driven by the solar wind? How do the infrared (IR) auroras relate to the ultraviolet (UV) auroras?

These observations can be obtained with the Solar Blind Channel (SBC) of the ACS. The field of view of the ACS/SBC (35” x 31”) is large enough to encompass the whole disc of the planet plus a significant portion of the rings. The sensitivity of the ACS/SBC using the F125LP filter is ~2.1 x 10-3 counts/pixel/s for 1 kiloRayleigh of H2 plus Lyman-alpha emission, such that the typically measured count rates are ~25,000 counts/s, well below the limit of 200,000 counts/s. We will use the F115LP filter in order to obtain the maximum signal to noise for observing the faint polar emissions. In order to obtain images without Ly-alpha background contamination from the geocorona the observations are to be obtained whilst HST is in shadow. Higher count rates are desirable since planetary rotation introduces ~1°/100 s of blurring of features near the central meridian longitude. We will obtain 100 s exposures, a length experience shows is sufficient to obtain a good signal-to- noise ratio, while retaining good temporal resolution. We request 20 orbits in order to determine the long-term behavior of the polar auroras. Experience shows that the windows for observing Saturn during this interval are generally ~4 orbits in length, and the 20 orbits would ideally consist of ~5 groups of ~4 orbits. They would ideally be scheduled to occur when Cassini is at high dayside latitudes in the southern hemisphere and when groundbased observations are being obtained, but in practice these observations can be scheduled whenever possible. SOLAR SYSTEM 12 false 0.0 0.0 false false false false false SUPPORTED SOLAR SYSTEM PLANET PLANET SATURN STD=SATURN EARTH ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP ACS/SBC Imaging No No F115LP Using ephemeris for target 11984-C1-SATURN ephemeris data for target 11984-C1-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. It will particularly coincide with Cassini UVIS observations of Saturn. 1234843886000 258.41210966982777 (Tic-Visit :proposal-id 11984 :visit-id "C1" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:23:53.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "C1" :obset-id "C1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "C1" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-C2-SATURN ephemeris data for target 11984-C2-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. It will particularly coincide with Cassini UVIS observations of Saturn. 1234849639000 258.4116500136872 (Tic-Visit :proposal-id 11984 :visit-id "C2" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:23:56.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "C2" :obset-id "C2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "C2" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-C3-SATURN ephemeris data for target 11984-C3-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. It will particularly coincide with Cassini UVIS observations of Saturn. 1234855392000 258.41118981738913 (Tic-Visit :proposal-id 11984 :visit-id "C3" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:00.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "C3" :obset-id "C3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "C3" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-C4-SATURN ephemeris data for target 11984-C4-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. It will particularly coincide with Cassini UVIS observations of Saturn. 1234861146000 258.4107290016309 (Tic-Visit :proposal-id 11984 :visit-id "C4" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:13.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "C4" :obset-id "C4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "C4" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-D1-SATURN ephemeris data for target 11984-D1-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. It will particularly coincide with Cassini UVIS observations of Saturn. 1234930186000 287.9691559792923 (Tic-Visit :proposal-id 11984 :visit-id "D1" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "D1" :obset-id "D1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "D1" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-D2-SATURN ephemeris data for target 11984-D2-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. It will particularly coincide with Cassini UVIS observations of Saturn. 1234935939000 287.9686883061703 (Tic-Visit :proposal-id 11984 :visit-id "D2" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:20.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "D2" :obset-id "D2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "D2" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-D3-SATURN ephemeris data for target 11984-D3-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. It will particularly coincide with Cassini UVIS observations of Saturn. 1234941693000 286.9156156135627 (Tic-Visit :proposal-id 11984 :visit-id "D3" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:23.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "D3" :obset-id "D3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "D3" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-D4-SATURN ephemeris data for target 11984-D4-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. It will particularly coincide with Cassini UVIS observations of Saturn. 1234947446000 286.8905239657413 (Tic-Visit :proposal-id 11984 :visit-id "D4" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:26.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "D4" :obset-id "D4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "D4" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-E1-SATURN ephemeris data for target 11984-E1-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. 1235787485000 291.0 (Tic-Visit :proposal-id 11984 :visit-id "E1" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:18:27.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "E1" :obset-id "E1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "E1" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3132 :pcs-gap 0 ) false 1 0 Using ephemeris for target 11984-E2-SATURN ephemeris data for target 11984-E2-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. 1235793240000 291.0 (Tic-Visit :proposal-id 11984 :visit-id "E2" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:29.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "E2" :obset-id "E2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "E2" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3132 :pcs-gap 0 ) false 1 0 Using ephemeris for target 11984-E3-SATURN ephemeris data for target 11984-E3-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. 1235799008000 291.0 (Tic-Visit :proposal-id 11984 :visit-id "E3" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:33.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "E3" :obset-id "E3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "E3" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3132 :pcs-gap 0 ) false 1 0 Using ephemeris for target 11984-E4-SATURN ephemeris data for target 11984-E4-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. 1235804761000 291.0 (Tic-Visit :proposal-id 11984 :visit-id "E4" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:37.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "E4" :obset-id "E4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "E4" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3132 :pcs-gap 0 ) false 1 0 Using ephemeris for target 11984-F1-SATURN ephemeris data for target 11984-F1-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. 1235868047000 279.6302735874657 (Tic-Visit :proposal-id 11984 :visit-id "F1" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:40.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "F1" :obset-id "F1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "F1" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-F2-SATURN ephemeris data for target 11984-F2-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. 1235873802000 279.629732606203 (Tic-Visit :proposal-id 11984 :visit-id "F2" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:43.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "F2" :obset-id "F2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "F2" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-F3-SATURN ephemeris data for target 11984-F3-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. 1235879556000 279.62919136315463 (Tic-Visit :proposal-id 11984 :visit-id "F3" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:46.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "F3" :obset-id "F3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "F3" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-F4-SATURN ephemeris data for target 11984-F4-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to occur when Cassini is in optimum location (high latitude, dayside) to provide supporting in situ observations. 1235885311000 279.6286496714987 (Tic-Visit :proposal-id 11984 :visit-id "F4" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:49.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "F4" :obset-id "F4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "F4" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-G1-SATURN ephemeris data for target 11984-G1-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to coincide with simultaneous groundbased observations of Saturn's infrared (IR) auroras using Keck (Tic-Visit :proposal-id 11984 :visit-id "G1" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "G1" :obset-id "G1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "G1" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-G2-SATURN ephemeris data for target 11984-G2-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to coincide with simultaneous groundbased observations of Saturn's infrared (IR) auroras using Keck (Tic-Visit :proposal-id 11984 :visit-id "G2" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:24:57.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "G2" :obset-id "G2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "G2" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-G3-SATURN ephemeris data for target 11984-G3-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to coincide with simultaneous groundbased observations of Saturn's infrared (IR) auroras using Keck (Tic-Visit :proposal-id 11984 :visit-id "G3" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:25:00.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "G3" :obset-id "G3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "G3" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :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 11984-G4-SATURN ephemeris data for target 11984-G4-SATURN does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 07.182 to 10.001. ephemeris interval: 08.366 to 11.001 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. This visit is scheduled to coincide with simultaneous groundbased observations of Saturn's infrared (IR) auroras using Keck (Tic-Visit :proposal-id 11984 :visit-id "G4" :proposal-version -1 :trans-version "20080807" :date "26-Jan-2009 19:25:03.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "28" :si-bright-earth-limb-angle 20.0 :data-volume 351760 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11984 :visit-id "G4" :obset-id "G4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11984 :visit-id "G4" :orbit-number 1 :pcs-time 355 :si-vis-utilization 2710 :al-overhead-at-end 0 :internal-dur-at-end 362 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3132 :pcs-gap 0 ) true 1 0