0 Assigned ID: 327 ----- Attempting Submission 1 (Thu Apr 06 22:48:29 GMT 2017) ----- ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN Update after with new Visit 61 due to partial failure of Visit 56. 949480940 ----- Attempting Submission 1 (Thu Jul 13 14:35:45 GMT 2017) ----- ----- Attempting Submission 2 (Fri Apr 27 13:46:44 GMT 2018) ----- ----- Attempting Submission 3 (Thu Dec 06 20:15:31 GMT 2018) ----- ----- Attempting Submission 4 (Tue Apr 16 18:11:46 GMT 2019) ----- This should not be necessary here -- targets are confirmed, just adjust exposures due to new acquisiton times The Origin of Ultra-Faint Galaxies We request 24 orbits of HST/ACS to obtain imaging in F606W and F814W of apparent tidal features in two ultra-faint dwarf galaxies: Hercules and Leo V. This will enable us to test whether the stars in ultra- faint galaxies--as a population--have been affected by Galactic tides. Most of the new dwarfs show signs of tidal interaction in ground-based photometry, several have measured ellipticities greater than ~0.5, and kinematics of a subset show velocity gradients. These ubiquitous hints for tidal effects among distant dwarfs is particularly surprising and suggestive. If most ultra-faint dwarfs are disturbed by tides, then recent tests of galaxy formation in the near field have unstable foundations. HST resolution provides an opportunity to assess whether tidal features (accompanied by tentative kinematic gradients) seen in ground-based observations of Hercules and Leo V are genuine or are instead clumps of compact background galaxies masquerading as stellar debris. In Hercules, a further test is possible: searching for a distance gradient along the stretched body of the galaxy. Parallel pointings will sample similar dwarf-centric radii away from the tidal features, assuring an unambiguous result. Whether we confirm or rule out the presence of stellar loss in these objects, the consequences are important--the origin of the ultra-faint dwarfs tells us the lower limit to both galaxy formation and the number of dark matter subhalos inhabiting the Milky Way. This program is only possible with HST: its exquisite resolution can separate compact galaxies from main sequence dwarf stars at faint magnitudes, which even the best multi-band ground-based schemes struggle with. We request 24 orbits of HST/ACS to obtain imaging in F606W and F814W of fields in the ultra-faint dwarf galaxies Hercules and Leo V, the two distant Milky Way satellites with both tentative photometric signs of tidal disturbance and velocity gradients. In concert with parallel WFC3 observations, this imaging will enable us to test whether the stars in ultra-faint galaxies have been strongly affected by tides. We will target candidate debris streams identified in ground-based data with one or two Advanced Camera for Surveys/Wide Field Camera (ACS/WFC) pointings for each dwarf. Coordinated parallel observations with WFC3 at similar projected radii will provide control color-magnitude diagrams (CMDs) to ensure decisive positive or negative detections of tidal material, and to assess the impact of foreground star/background galaxy contaminants. Central pointings are needed to have CMDs to compare to the potential debris, and these data already exist in the HST archive at sufficient depths for both targets. For Leo V, we have simulated how many stars we expect to detect if the overdensities seen in the ground-based data are due entirely to tidal material or entirely due to unresolved galaxies. To make a 5-sigma detection of the overdensity, we need to detect 20-30 main sequence stars. We have chosen the standard F606W and F814W filter combination for their sensitivity and for consistency with the archived central pointing of Leo V (from GO-14770). By reaching depths of F606W=27.0 and F814W=26.5 we can ensure that we will detect at least 30 stars if the outlying Leo V field consists of tidal debris. For Hercules, If the tentative measurement of a velocity gradient along Hercules is correct (Aden et al. 2009; Deason et al. 2012), we can expect to measure a ~10 kpc distance gradient between our two ACS pointings, as predicted by the orbital calculations of Martin & Jin (2010), where Hercules is essentially a stellar over-density in a larger stream near apocenter. To model this scenario, we combined simulations of our ACS observations with the central archival data and a model of Hercules with a 10 kpc gradient. With data of the same quality as the central pointing, we can measure a gradient with an uncertainty of ~2 kpc, which should result in a robust 5-sigma detection if the gradient is in fact 10 kpc across our fields. The depth required here is greater than the depth required to verify the tidal debris (similar to that discussed for the Leo V case above), but will result in significant additional scientific gain by providing detailed information on the tidal disruption that could be occurring in Hercules Stellar Populations 6 false false false false false false false SUPPORTED GALAXY DWARF SPHEROIDAL J2000 J2000 GALAXY DWARF SPHEROIDAL J2000 J2000 GALAXY DWARF SPHEROIDAL This target is centered on a stellar overdensity far from the center of the dwarf spheroidal, Leo V. J2000 J2000 ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W POS-TARG DITHER 0.262 LINE 0.192 false false 68.14 4 18.39 ACS-WFC-DITHER-BOX 1 false POS-TARG DITHER 0.149 LINE false false 2 34.29 ACS-WFC-DITHER-LINE 2 false The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit5083977729473032680.xml We are splitting our four orbits of Leo V NE into two visits, one for each filter. The initial visit should have an ORIENT between 65 and 95 degrees. Coordinated parallels with WFC3 will be taken. The second visit (LeoVNE Visit 2) should have the same ORIENT as LeoVNE Visit 1. 1528023032000 95.0 (Tic-Visit :proposal-id 15182 :visit-id "01" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:08:59.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2291872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2868 :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 3142 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "01" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2980 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) true 2 2 The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit1273203714079129914.xml We are splitting our four orbits of Leo V NE into two visits, one for each filter. The initial visit should have an ORIENT between 65 and 95 degrees. Coordinated parallels with WFC3 will be taken. The second visit (LeoVNE Visit 2) should have the same ORIENT as LeoVNE Visit 1. 1527582480000 95.0 (Tic-Visit :proposal-id 15182 :visit-id "02" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:00.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2291872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2868 :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 3142 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "02" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2980 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) true 2 2 Hst Same orient constraint links visits (03 04 05 53 54 56 61) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit8370999442932428794.xml We are splitting our 10 orbits of Herceast into 4 visits. The initial visit should have an ORIENT between 260 and 290 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Herceast are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. 1521564785000 265.0 (Tic-Visit :proposal-id 15182 :visit-id "03" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:02.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2291872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2876 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "03" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2986 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 2 2 Hst Same orient constraint links visits (03 04 05 53 54 56 61) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit8951740703756429424.xml We are splitting our 10 orbits of Herceast into 4 visits. The initial visit should have an ORIENT between 260 and 290 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Herceast are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. This is a repeat of Visit 03. So it is connected to Visit 03 with a same orient as contraint, so the orient can be the same. 1551130627000 265.0 (Tic-Visit :proposal-id 15182 :visit-id "53" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:03.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2291872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "53" :obset-id "53" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "53" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2816 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "53" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2846 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 2 0 Hst Same orient constraint links visits (03 04 05 53 54 56 61) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit17898377593047752012.xml We are splitting our 10 orbits of Herceast into 4 visits. The initial visit should have an ORIENT between 260 and 290 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Herceast are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. This is a repeat of Visit 04. 1551296500000 265.0 (Tic-Visit :proposal-id 15182 :visit-id "54" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:04.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3437808 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "54" :obset-id "54" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "54" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2816 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "54" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2846 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "54" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2846 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 3 0 Hst Same orient constraint links visits (03 04 05 53 54 56 61) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit510739261211880698.xml We are splitting our 10 orbits of Herceast into 4 visits. The initial visit should have an ORIENT between 260 and 290 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Herceast are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. This is a repeat of Visit 06. 1551315028000 265.0 (Tic-Visit :proposal-id 15182 :visit-id "56" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:06.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3437808 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "56" :obset-id "56" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "56" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2816 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "56" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2846 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "56" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2846 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 3 0 Hst Same orient constraint links visits (03 04 05 53 54 56 61) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit7753266256225574552.xml We are splitting our 10 orbits of Herceast into 4 visits. The initial visit should have an ORIENT between 260 and 290 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Herceast are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. 1521581941000 265.0 (Tic-Visit :proposal-id 15182 :visit-id "04" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:08.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3437808 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2876 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "04" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2986 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "04" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2982 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 3 3 Hst Same orient constraint links visits (03 04 05 53 54 56 61) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit7064447809052639768.xml We are splitting our 10 orbits of Herceast into 4 visits. The initial visit should have an ORIENT between 260 and 290 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Herceast are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. 1521845213000 265.0 (Tic-Visit :proposal-id 15182 :visit-id "05" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:09.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2291872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2876 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "05" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2986 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 2 2 The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit15687929087283734067.xml We are splitting our 10 orbits of Herceast into 4 visits. The initial visit should have an ORIENT between 260 and 290 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Herceast are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. 1522091268000 266.0 (Tic-Visit :proposal-id 15182 :visit-id "06" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:12.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3437808 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2876 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "06" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2986 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "06" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2982 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 3 3 Hst Same orient constraint links visits (07 08 09 10 58 60) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit12717663707390038838.xml We are splitting our 10 orbits of Hercwest into 4 visits. The initial visit should have an ORIENT between 80 and 110 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Hercwest are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. 1536199599000 92.0 (Tic-Visit :proposal-id 15182 :visit-id "07" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:13.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2291872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2876 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "07" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2986 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 2 2 Hst Same orient constraint links visits (07 08 09 10 58 60) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit5986190021055521701.xml We are splitting our 10 orbits of Hercwest into 4 visits. The initial visit should have an ORIENT between 80 and 110 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Hercwest are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. 1537154944000 92.0 (Tic-Visit :proposal-id 15182 :visit-id "08" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:14.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3437808 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2876 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "08" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2986 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "08" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2982 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 3 3 Hst Same orient constraint links visits (07 08 09 10 58 60) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit8196016063684551514.xml We are splitting our 10 orbits of Hercwest into 4 visits. The initial visit should have an ORIENT between 80 and 110 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Hercwest are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. 1536651569000 92.0 (Tic-Visit :proposal-id 15182 :visit-id "09" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:16.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2291872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2876 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "09" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2986 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 2 2 Hst Same orient constraint links visits (07 08 09 10 58 60) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit9731549662523779598.xml We are splitting our 10 orbits of Hercwest into 4 visits. The initial visit should have an ORIENT between 80 and 110 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Hercwest are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. 1537229305000 92.0 (Tic-Visit :proposal-id 15182 :visit-id "10" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:17.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3437808 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2876 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "10" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2986 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "10" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2982 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 3 3 Hst Same orient constraint links visits (07 08 09 10 58 60) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit9891383544897531010.xml We are splitting our 10 orbits of Hercwest into 4 visits. The initial visit should have an ORIENT between 80 and 110 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Hercwest are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. Repeat of Visit 08 (Tic-Visit :proposal-id 15182 :visit-id "58" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:19.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3437808 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "58" :obset-id "58" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "58" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2816 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "58" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2846 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "58" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2846 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 3 0 Hst Same orient constraint links visits (07 08 09 10 58 60) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit13211672269429838376.xml We are splitting our 10 orbits of Hercwest into 4 visits. The initial visit should have an ORIENT between 80 and 110 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Hercwest are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. Repeat of Visit 10 (Tic-Visit :proposal-id 15182 :visit-id "60" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:09:20.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3437808 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "60" :obset-id "60" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "60" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2816 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "60" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2846 :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 3149 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15182 :visit-id "60" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2846 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 3 0 Hst Same orient constraint links visits (03 04 05 53 54 56 61) The scheduling data was generated by CASM 27.0. CASM was run in Phase II mode. /private/var/folders/lk/kgyb23rx78z9r8t653drxmfw0000gn/T/OPVisit6819493485855624210.xml We are splitting our 10 orbits of Herceast into 4 visits. The initial visit should have an ORIENT between 260 and 290 degrees. Coordinated parallels with WFC3 will be taken. The 2nd through 4th visits will have the same orientation as the initial visit. Visit 1 and Visit 3 for Herceast are 2-orbit visits, with a standard ACS-WFC-DITHER-BOX. Visit 2 and Visit 4 are 3-orbits, with a standard ACS-WFC-DITHER-BOX, and then a small-scale ACS-WFC-DITHER-LINE in the third orbit. This will ultimately give 5 orbits per filter, ten orbits total. This is a partial repeat of Visit 56. Only 1 orbit is needed. (Tic-Visit :proposal-id 15182 :visit-id "61" :proposal-version -1 :trans-version "20181130" :date "16-Apr-2019 11:05:00.0" :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 1145936 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15182 :visit-id "61" :obset-id "61" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15182 :visit-id "61" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2816 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 1 0