0 Assigned ID: 761 ----- Attempting Submission 1 (Fri Apr 10 20:15:30 GMT 2015) ----- If the target coordinates are not known to 0.4" (or better), an ACQ/SEARCH should precede the ACQ/IMAGE. For the best data quality, it is strongly recommended that all four FP-POS positions be used when observing at a given COS CENWAVE setting. INEFFICIENT ORDERING OF FP-POS POSITIONS We are resubmitting this proposal to activate visit 3, which has been on hold until completion of visit 1 and 2. Planning for COS observations in visit 3 required information from observations in visit 1 and 2 that were completed Aug 22. -1174249249 ----- Attempting Submission 1 (Sat Jul 18 15:25:25 GMT 2015) ----- ----- Attempting Submission 2 (Fri Sep 04 00:23:37 GMT 2015) ----- Errors and warning pertain to Visit 3, which was on hold and could not be properly planned until Visit 1 and 2 were conducted. Visit 1 and 2 were conducted, and thus we cannot run the orbit and visit planner tools. The Unprecedented Supernova Metamorphosis of SN 2014C Recent observations of major eruptions preluding supernova explosions within one year of core collapse have challenged long held notions of stellar evolution. These events are not easily explained by our current understanding of the physical mechanisms that drive mass loss in evolved massive stars, and the disconnect between theory and observation presents a real problem for many fields of research that depend on the predictions of stellar evolution models. Our group has been leading an extensive X-ray-through-radio monitoring campaign of a unique supernova metamorphosis -- SN 2014C -- that extends the poorly understood timescale between intensified mass loss and core collapse. A crucial component of our multi-wavelength investigation is UV spectroscopy and high-resolution UV/optical imaging, which only HST can deliver. The combined data set will enable a global understanding of the SN explosion and its delayed interaction with surrounding circumstellar material, as well as a detailed examination of the mass loss and evolutionary transitions a massive star may undergo in its final stages approaching core collapse. HST observations are to be obtained of supernova SN 2014C. This is a fading source (~0.1 mag per month) that shows strong emission lines. Imaging will map immediate stellar and gaseous environment of supernova progenitor system and pinpoint precise location. Spectroscopy will probe the UV emission anticipated to arise from the supernova's interaction with surrounding circumstellar material. Three visits are planned: Visit 1: Imaging with WFC3/UVIS with filters F275W, F438W, F814W, and F657N Visit 2: Spectroscopy with STIS/CCD with G230LB and G430L Visit 3: Spectroscopy with COS/FUV G130M (1300) and G160M (1589) **Visit 1 and 2 should be scheduled together and will be used to estimate the FUV flux in order to plan Visit 3 which should be scheduled ~ 1 month later. HOT STARS 12 false true false false SUPPORTED STAR SUPERNOVA SUPERNOVA TYPE IB NO J2000 J2000 STAR SUPERNOVA SUPERNOVA TYPE IB NO J2000 J2000 STIS/CCD Spectroscopic No No G230LB 2375 STIS/CCD Spectroscopic No No G430L 4300 WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F475W WFC3/UVIS Imaging No No F657N WFC3/UVIS Imaging No No F814W COS/FUV Spectroscopic No No G130M 1300 COS/FUV Spectroscopic No No G160M 1589 POS-TARG DITHER 0.135 LINE false false 3 46.84 WFC3-UVIS-DITHER-LINE-3PT 1 false POS-TARG DITHER 0.173 LINE 0.112 false false 81.785 4 23.884 WFC3-UVIS-DITHER-BOX 2 false POS-TARG DITHER 0.3 LINE false false 3 90.0 STIS-ALONG-SLIT 3 false POS-TARG DITHER 0.7 LINE false false 2 90.0 STIS-ALONG-SLIT 4 false Timing link suitability includes constraints ([Group (01 02) Within 3.0 days]) The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. 1440235504000 191.2245740398257 (Tic-Visit :proposal-id 14202 :visit-id "01" :proposal-version -1 :trans-version "20150609" :date "17-Jul-2015 15:03:42.0" :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 4331264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14202 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14202 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2910 :al-overhead-at-end 122 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3245 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14202 :visit-id "01" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3015 :al-overhead-at-end 123 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3245 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14202 :visit-id "01" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3023 :al-overhead-at-end 123 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3245 :pcs-gap 0 ) false 3 0 Timing link suitability includes constraints ([Group (01 02) Within 3.0 days] [03 After 02 by 60.0 to 365.0 days]) The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. 1440269381000 190.82292776785067 (Tic-Visit :proposal-id 14202 :visit-id "02" :proposal-version -1 :trans-version "20150609" :date "17-Jul-2015 15:55:05.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 221248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14202 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14202 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2909 :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 3245 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14202 :visit-id "02" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3020 :al-overhead-at-end 75 :internal-dur-at-end 419 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3245 :pcs-gap 0 ) false 2 0 Acqusition for faint SN with estimated r = 20.0 mag at time of observation. Timing link suitability includes constraints ([03 After 02 by 60.0 to 365.0 days]) The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. This visit will be scheduled after Visits 1 and 2 are completed. Visit 1 and 2 will provide measure of UV flux to estimate proper observing strategy for COS for Visit 3. Exposure times and BUFFER-TIMEs presently inputted (17 July 2015) are placeholders until accurate values can be estimated from observations obtained in Visit 1 and 2. (Tic-Visit :proposal-id 14202 :visit-id "03" :proposal-version -1 :trans-version "20150609" :date "03-Sep-2015 17:27:38.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 565376 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14202 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14202 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2883 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3245 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14202 :visit-id "03" :orbit-number 2 :pcs-time 222 :si-vis-utilization 2961 :al-overhead-at-end 0 :internal-dur-at-end 114 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3245 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14202 :visit-id "03" :orbit-number 3 :pcs-time 222 :si-vis-utilization 2961 :al-overhead-at-end 0 :internal-dur-at-end 407 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3245 :pcs-gap 0 ) false 3 0 Visit 3 must be scheduled after Visit 2. We require STIS spectra from Visit 2 to estimate the FUV flux from the supernova in order to correctly estimate exposure times and instrument configuration for COS. We prefer to also have Visit 1 completed before Visit 2 so that accurate coordinates (< 0.4 arcsec) can be determined and avoid use of offset star for COS target acquisition.