Shortened observing windows for Visits 32 and 33 from 6 to 3 hours. Adjusted timing of Visit 31 observing window to start 1 hour later.657595637----- Attempting Submission 2 (Sat Aug 11 03:43:39 GMT 2018) -----The Pluto System in the Post-New Horizons Era: Opposition Effects, Rotations, and Orbital StabilityFollowing the New Horizons flyby in 2015, we propose a two-cycle program to observe Pluto and its five moons in the post-encounter era, building on the rich legacy of observations obtained during and prior to the historic flyby. At opposition in Cycles 25-26, the Pluto system is visible at the smallest solar phase angle in 87 years. The system will be at true opposition when it crosses the line of nodes in July 2018, and as seen from Pluto, Earth will transit the solar disk. Such rare planetary alignments enable the characterization of small-scale surface texture and porosity as well as the direct measurement of the geometric albedo, rather than an estimation of its value from photometric models. Any variation among the regolith properties of Pluto's moons will test the long-standing hypothesis that ejecta exchange between the moons has altered their surfaces. We will also follow up on the surprising result from New Horizons and HST that the small moons are spinning rapidly and with high obliquities. Styx, Nix, and Hydra show hints of being in strong spin-orbit couplings with Charon, but confirmation requires the additional precision in measurements of their spin rates and polar precession rates proposed here. In addition, we will obtain new astrometry of the small moons, making it possible to determine their masses and bulk densities with much higher precision. Results from this program will enhance the scientific return from the New Horizons mission, providing images complementary to those obtained by the spacecraft on approach and achieving science objectives that cannot be met by either HST or New Horizons alone.This program consists of two types of visit types. Five visits (31-36) are primarily for photometry within specific phase angle ranges near opposition, to study the opposition surge on all the bodies in the Pluto system. Eight visits are for astrometry and photometry, primarily to determine the orbits and rotation states of the four small moons. Rotation states are also needed to interpret the data near opposition. Five of these visits (41-45) are scheduled before opposition 2019 and two (51, 52) after to ensure a long time baseline for orbit and rotation determinations in 2019. One visit is scheduled in late 2018 to extend the time baseline of our most recent observations. The filters used here match those in Programs 13667 and 15261, so that the combined data sets sample a much longer time baseline and extend the phase angle coverage down to the very small phase angles not available to Program 13667 in 2015.
Visits 24-26 are a set of three options for scheduling the Visit in late 2018. The times have been derived from the constraint that our last 2018 observation, when combined with the earlier data, will provide the best constraint on the rotations of Styx, Nix and Kerberos. Visits 25 and 26 are on hold in case Visit 24 cannot be scheduled.
Note also that Visits 32 and 33 are scientifically equivalent, with 33 on hold. Either one of them should be scheduled.
Visits 41-45 and 51-52 have been specified to optimize our sampling of the rotational phases of Nix. This is necessary to meet our scientific goal of measuring its unusually rapid spin rate with high precision. We have defined the times of these visits using period and phase constraints to support this goal.
In order to obtain reliable measurements of the small moons, particularly Styx and Kerberos, we require that they not overlap with the diagonal diffraction stripes from Pluto and Charon. The optimal orientation cannot be determined until the time frame of a visit has been narrowed down to a few hours. In this Phase II proposal, we have filled in all the ORIENT values that we could. However, for those visits where the ORIENT is currently unspecified, we request the opportunity to select a value once the visit has been scheduled. This is the procedure we followed in Program 15261 and it worked well for us.6falsefalsefalsefalsefalsefalsefalseSUPPORTEDSOLAR SYSTEMDWARF-PLANETPlutoSTD=PLUTOEARTHSOLAR SYSTEMDWARF-PLANETPluto with Styx and Kerberos well separated from CharonSTD=PLUTOSEP OF CHARON STYX FROM EARTH GT 1.8",
SEP OF CHARON KERBEROS FROM EARTH GT 1.6"EARTHUsing ephemeris for target 15505-24-PLUTO-STYX-KERBEROSephemeris data for target 15505-24-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis. The time was selected to optimize the precision on the rotation rates of Stys, Nix and Kerberos in data from 2018.
ORIENT = 79 has been confirmed to position all four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "24"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:20.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "24"
:obset-id "24"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "24"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2799
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)true11Using ephemeris for target 15505-25-PLUTO-STYX-KERBEROSephemeris data for target 15505-25-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis. The time was selected to optimize the precision on the rotation rates of Stys, Nix and Kerberos in data from 2018.
This is an alternative to Visit 24. It is ON HOLD and should only be used if Visit 24 is unschedulable.
ORIENT = 77 has been confirmed to position all four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "25"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:22.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "25"
:obset-id "25"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "25"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2799
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)true11Use in place of Visit 24 if that visit cannot be scheduled.Using ephemeris for target 15505-26-PLUTO-STYX-KERBEROSephemeris data for target 15505-26-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis.
This is an alternative to Visits 24 and Visit 25. It is ON HOLD and should only be used if both visits are unschedulable.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "26"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:23.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "26"
:obset-id "26"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "26"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2799
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)true11Use in place of Visits 24 and Visit 26 if neither visit is schedulable.Using ephemeris for target 15505-31-PLUTOephemeris data for target 15505-31-PLUTO does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.50/solaris/user1/aroman/work/hst/OP-cache/15505-v31.xmlColor photometry of Pluto and Charon at exact opposition. Additional long exposures to capture the small moons. Two POS TARGs designed to shift the system by 5.5 pixels along each axis midway through the visit.
ORIENT has been specified to keep the four small moons out of the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "31"
:proposal-version -1
:trans-version "20181130"
:date "18-Jun-2019 13:33:53.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 114416
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "31"
:obset-id "31"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "31"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 162
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3000.0
:pcs-gap 0
)true10Using ephemeris for target 15505-32-PLUTOephemeris data for target 15505-32-PLUTO does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.50/solaris/user1/aroman/work/hst/OP-cache/15505-v32.xmlBroadband photometry of the small moons at 0.018 to 0.021 degrees phase. Additional short exposures to study year-by-year changes in Pluto's rotation curve.
Two scientifically equivalent opportunities are available, designated as Visits 32 and 33. Visit 33 is designated ON HOLD. Schedule either Visit 32 or 33. They are listed separately because they must satisfy different ORIENT constraints in order to keep the small moons out of the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "32"
:proposal-version -1
:trans-version "20181130"
:date "18-Jun-2019 13:35:26.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "32"
:obset-id "32"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "32"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2598
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3000.0
:pcs-gap 0
)false10Using ephemeris for target 15505-33-PLUTOephemeris data for target 15505-33-PLUTO does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.51Broadband photometry of the small moons at 0.017 to 0.019 degrees phase. Additional short exposures to study year-by-year changes in Pluto's rotation curve.
Two scientifically equivalent opportunities are available, designated as Visits 32 and 33. Visit 33 is designated ON HOLD. Schedule either Visit 32 or 33. They are listed separately because they must satisfy different ORIENT constraints in order to keep the small moons out of the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "33"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:28.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "33"
:obset-id "33"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "33"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2662
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3060.0
:pcs-gap 0
)true10This is an alternative to Visit 32. Schedule either 32 or 33; they are scientifically equivalent.Using ephemeris for target 15505-34-PLUTOephemeris data for target 15505-34-PLUTO does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.50/solaris/user1/aroman/work/hst/OP-cache/15505-v34.xmlBroadband photometry of the small moons at 0.04 to 0.06 degrees phase. Additional short exposures to study year-by-year changes in Pluto's rotation curve.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "34"
:proposal-version -1
:trans-version "20181130"
:date "18-Jun-2019 13:36:49.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "34"
:obset-id "34"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "34"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2584
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3000.0
:pcs-gap 0
)true10Using ephemeris for target 15505-35-PLUTOephemeris data for target 15505-35-PLUTO does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.51/solaris/user1/aroman/work/hst/OP-cache/15505-v35.xmlBroadband photometry of the small moons at 0.09 to 0.12 degrees phase. Additional short exposures to study year-by-year changes in Pluto's rotation curve.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "35"
:proposal-version -1
:trans-version "20181130"
:date "18-Jun-2019 13:38:06.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "35"
:obset-id "35"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "35"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2638
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3060.0
:pcs-gap 0
)true10Using ephemeris for target 15505-36-PLUTOephemeris data for target 15505-36-PLUTO does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.51/solaris/user1/aroman/work/hst/OP-cache/15505-v36.xmlBroadband photometry of the small moons at 0.18 to 0.22 degrees phase. Additional short exposures to study year-by-year changes in Pluto's rotation curve.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "36"
:proposal-version -1
:trans-version "20181130"
:date "18-Jun-2019 13:39:19.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "36"
:obset-id "36"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "36"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2629
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3060.0
:pcs-gap 0
)true10Using ephemeris for target 15505-41-PLUTO-STYX-KERBEROSephemeris data for target 15505-41-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.53Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis. Scheduled before opposition, with phase > 0.4 degrees.
Nix rotational phase between 0 and 0.2; during March 2019 to ensure a long time baseline.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.1552698891000265.3(Tic-Visit
:proposal-id 15505
:visit-id "41"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:35.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "41"
:obset-id "41"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "41"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2766
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3180.0
:pcs-gap 0
)false10Using ephemeris for target 15505-42-PLUTO-STYX-KERBEROSephemeris data for target 15505-42-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.52Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis. Scheduled before opposition, with phase > 0.4 degrees.
Nix rotational phase between 0.2 and 0.4; second of five visits well-spaced between March 1 and July 1.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.1552721770000265.3(Tic-Visit
:proposal-id 15505
:visit-id "42"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:36.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "42"
:obset-id "42"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "42"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2723
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3120.0
:pcs-gap 0
)false10Using ephemeris for target 15505-43-PLUTO-STYX-KERBEROSephemeris data for target 15505-43-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis. Scheduled before opposition, with phase > 0.4 degrees.
Nix rotational phase between 0.4 and 0.6; third of five visits well-spaced between March 1 and July 1.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.1556840512000244.0(Tic-Visit
:proposal-id 15505
:visit-id "43"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:38.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "43"
:obset-id "43"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "43"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2802
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)false11Using ephemeris for target 15505-44-PLUTO-STYX-KERBEROSephemeris data for target 15505-44-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis. Scheduled before opposition, with phase > 0.4 degrees.
Nix rotational phase between 0.6 and 0.8; fourth of five visits well-spaced between March 1 and July 1.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.1559889146000252.0(Tic-Visit
:proposal-id 15505
:visit-id "44"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:39.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 68656
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "44"
:obset-id "44"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "44"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2748
:al-overhead-at-end 0
:internal-dur-at-end 112
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)false10Using ephemeris for target 15505-45-PLUTO-STYX-KERBEROSephemeris data for target 15505-45-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis. Scheduled before opposition, with phase > 0.4 degrees.
Nix rotational phase between 0.8 and 1.0; during June 2018 to ensure a well-sampled time baseline.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.1560701374000243.0(Tic-Visit
:proposal-id 15505
:visit-id "45"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:28:40.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "45"
:obset-id "45"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "45"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2834
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)false11Using ephemeris for target 15505-51-PLUTO-STYX-KERBEROSephemeris data for target 15505-51-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode./solaris/user1/aroman/work/hst/OP-cache/15505-v51.xmlLong exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis.
Nix rotational phase between 0. and 0.25. During August 2019 to ensure a well-sampled time baseline.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "51"
:proposal-version -1
:trans-version "20181130"
:date "18-Jun-2019 13:44:11.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "51"
:obset-id "51"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "51"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2736
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)false10Using ephemeris for target 15505-52-PLUTO-STYX-KERBEROSephemeris data for target 15505-52-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode./solaris/user1/aroman/work/hst/OP-cache/15505-v52.xmlLong exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis.
Nix rotational phase between 0.25 and 0.5. In late September 2019 to ensure a long time baseline.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "52"
:proposal-version -1
:trans-version "20181130"
:date "18-Jun-2019 13:45:52.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "52"
:obset-id "52"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "52"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2731
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)false10Using ephemeris for target 15505-53-PLUTO-STYX-KERBEROSephemeris data for target 15505-53-PLUTO-STYX-KERBEROS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 18.213 to 20.090. ephemeris interval: 19.031 to 21.032Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.500/1.000.The scheduling data was generated by CASM 27.0.CASM was run in Phase II mode.Long exposures for the small moons through filter F350LP, plus additional short exposures for photometry of Pluto and Charon. POS TARG values re-position Pluto in steps of exactly 5.5 pixels along each axis.
Nix rotational phase between 0.5 and 1.0. In early September 2019 to ensure time baseline coverage.
We request the opportunity to define the ORIENT parameter once this visit is scheduled. It is important to keep the four small moons outside the diffraction spikes of Pluto and Charon.
Note: Changing the schedulability setting from 100 to 30 did not affect the valid observing windows at all, but it gave us several extra minutes of integration time on our targets.(Tic-Visit
:proposal-id 15505
:visit-id "53"
:proposal-version -1
:trans-version "20181130"
:date "14-Feb-2019 16:37:05.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 73232
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15505
:visit-id "53"
:obset-id "53"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15505
:visit-id "53"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2737
:al-overhead-at-end 0
:internal-dur-at-end 117
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3142
:pcs-gap 0
)false10