0 Assigned ID: 753 ----- Attempting Submission 1 (Fri Apr 10 20:11:35 GMT 2015) ----- I am unsure of the optimal values for NSAMP and SAMP-SEQ for the WFC3/IR obs, I have asked the Contact Scientist for advice on this. Also, there is a possibility that my target will not be visible when these observations are taken (it is an evolving transient that may have faded away completely). In this case deep observations are still useful as they can set limits on the source magnitude, but I was unclear whether this would affect the acquisition of the target. Regards and thanks, Morgan Fraser -1680545700 ----- Attempting Submission 1 (Wed Jul 22 21:52:14 GMT 2015) ----- Searching for the disappearance of the progenitor of the unique SN 2009ip We request HST time in order to obtain late-time imaging of SN 2009ip, where for the first time in the history of astronomy we have monitored a star for many years before it has (possibly) exploded as a supernova (SN). SN 2009ip was first discovered as a giant outburst of a luminous blue variable star in 2009, and three years later an explosive event caused it to reach SN-like luminosities of M_V~-18, and a bolometric luminosity of 10E43 erg/s. We have monitored SN 2009ip extensively over the following 2.5 years, and now seek to conduct the definitive test of whether SN 2009ip exploded as a core-collapse supernova or not, by observing whether SN 2009ip fades below or remains above the progenitor magnitude. We wish to obtain deep imaging of the nearby supernova/supernova impostor SN 2009ip, to confirm (or otherwise) the disappearance of the progenitor candidate seen in pre-explosion WFPC2 imaging. We will observe SN 2009ip with ACS/WFC F606W and F814W, with WFC3/UVIS F438W, and with WFC3/IR F606W. As the target is still fading, we wish to observe it as late as possible in Cycle 23 to ensure that it will have faded below the expected flux level of the progenitor. HOT STARS 12 false false false false SUPPORTED STAR LUMINOUS BLUE VARIABLE SUPERNOVA NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W WFC3/UVIS Imaging No No F438W WFC3/IR Imaging No No F160W POS-TARG DITHER 3.011 LINE false false 2 85.28 ACS-WFC-DITHER-LINE 1 false POS-TARG DITHER 0.145 LINE false false 2 46.84 WFC3-UVIS-DITHER-LINE 2 false POS-TARG DITHER 0.636 LINE false false 2 41.788 WFC3-IR-DITHER-LINE 3 false /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit6088032999158994795.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. ACS/WFC imaging in F606W and F814W (Tic-Visit :proposal-id 14150 :visit-id "01" :proposal-version -1 :trans-version "20150609" :date "31-Jul-2015 14:25:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 1136896 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14150 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14150 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2893 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3229 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. WFC3 imaging in F435W and F160W (Tic-Visit :proposal-id 14150 :visit-id "02" :proposal-version -1 :trans-version "20150609" :date "31-Jul-2015 13:56:13.0" :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 1064944 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14150 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14150 :visit-id "02" :orbit-number 1 :pcs-time 241 :si-vis-utilization 2895 :al-overhead-at-end 0 :internal-dur-at-end 519 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3229 :pcs-gap 0 ) true 1 0