0 Assigned ID: 158 ----- Attempting Submission 1 (Wed Apr 06 19:32:14 GMT 2016) ----- HST Phase I Proposal 158 (forms.apt) successfully submitted. Receipt: # 158-1 ----- Attempting Submission 2 (Thu Apr 07 18:49:48 GMT 2016) ----- HST Phase I Proposal 158 (forms.apt) successfully submitted. Receipt: # 158-2 ----- Attempting Submission 3 (Fri Apr 08 15:14:22 GMT 2016) ----- 0 FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser I would appreciate, if you have time, if you could double check on the FLASH issue for me. I think I am correct here. I discussed this in the proposal text, and didn't get any comments about the technical issue. 1470123501 ----- Attempting Submission 1 (Mon Jul 11 19:13:34 GMT 2016) ----- These are all warnings about flashes, and I have flagged this at multiple points as something that I think I have right, but that I would like a double check on. Finding AM CVn stars in 47 Tuc We propose to observe 47 Tuc in He I (using the redshifted H-alpha filter centered on 665 nm) and a relatively broad emission line filter for slightly higher redshift H-alpha at 680 nm to get a clean continuum measurement. These narrow band images will reveal sources in the cluster which are strong in one of the two filters, but not in the other. The objects strong in only H-alpha will be strong candidates for being cataclysmic variables, while the objects strong in only He I will be strong candidates to be ultracompact binaries -- accreting compact objects in which the donor star is a white dwarf. These objects are key tracers of whether globular clusters are important factories for making gravitational wave sources, and Type Ia supernovae. Furthermre, because AM CVn stars are the only class of objects which has a characteristic lifetime shorter than the dynamical evolution timescale of the cluster while also being likely to be numerous, developoing an approach for finding them also opens up the possibility of examining the historical evolution of the cores of globular clusters. The proposal is to make narrow band images of the globular cluster 47 Tuc. The F665N filter will be used as a He I filter, while the F680N filter will be used as a continuum filter. The main goal is to search for hydrogen deficient stars like AM CVn stars. Stellar Populations Stellar Physics 12 false false false false false false SUPPORTED STELLAR CLUSTER GLOBULAR CLUSTER This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 The scheduling data was generated by CASM 24.0. CASM was run in Phase I mode. WFC3/UVIS Imaging No No F665N WFC3/UVIS Imaging No No F680N POS-TARG DITHER 0.173 LINE 0.112 false false 81.785 4 23.884 WFC3-UVIS-DITHER-BOX 1 false /tmp/OPVisit1772181501848450104.xml The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 14639 :visit-id "01" :proposal-version -1 :trans-version "20160601" :date "11-Jul-2016 13:47:47.0" :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 3464928 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14639 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14639 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3260 :al-overhead-at-end 116 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14639 :visit-id "01" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3372 :al-overhead-at-end 116 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14639 :visit-id "01" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3372 :al-overhead-at-end 116 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) true 3 0 No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. /tmp/OPVisit4332578525525009889.xml The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 14639 :visit-id "02" :proposal-version -1 :trans-version "20160601" :date "11-Jul-2016 13:50:56.0" :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 3464928 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14639 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14639 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3260 :al-overhead-at-end 116 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14639 :visit-id "02" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3372 :al-overhead-at-end 116 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14639 :visit-id "02" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3372 :al-overhead-at-end 116 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) true 3 0 No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. /tmp/OPVisit2410002526878689922.xml The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 14639 :visit-id "03" :proposal-version -1 :trans-version "20160601" :date "11-Jul-2016 13:51:03.0" :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 3464928 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14639 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14639 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3260 :al-overhead-at-end 116 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14639 :visit-id "03" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3372 :al-overhead-at-end 116 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14639 :visit-id "03" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3372 :al-overhead-at-end 116 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) true 3 0 No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash. /tmp/OPVisit3607263104911893028.xml The scheduling data was generated by CASM 24.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 14639 :visit-id "04" :proposal-version -1 :trans-version "20160601" :date "11-Jul-2016 13:50:30.0" :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 1154976 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14639 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14639 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3260 :al-overhead-at-end 116 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3596 :pcs-gap 0 ) true 1 0 No flash has been added because the object is a globular cluster, and the wings of the PSFs of nearby stars will provide a background level typically equivalent to a 9 electron flash.