Assigned ID: 2007 ----- Attempting Submission 1 (Sun May 09 16:21:58 GMT 2010) ----- HST Phase I Proposal 2007 (m99_dd_pro.apt) successfully submitted. Took out all targets/visits except the one that will actually be executed. Did an Auto-Adjust to get max exposure time. - H.E. Bond ----- Attempting Submission 1 (Sun May 30 23:56:16 GMT 2010) ----- ----- Attempting Submission 2 (Thu Jun 03 17:41:05 GMT 2010) ----- ----- Attempting Submission 3 (Thu Jun 03 19:49:44 GMT 2010) ----- HST Phase II Proposal 12118 (12118.apt) successfully submitted. ----- Attempting Submission 4 (Thu Jun 03 20:27:06 GMT 2010) ----- ----- Attempting Submission 5 (Fri Jun 04 12:48:54 GMT 2010) ----- ----- Attempting Submission 6 (Fri Jun 04 17:33:50 GMT 2010) ----- HST Phase II Proposal 12118 (12118.apt) successfully submitted. ----- Attempting Submission 7 (Fri Jun 04 19:06:02 GMT 2010) ----- HST Phase II Proposal 12118 (12118.apt) successfully submitted. ----- Attempting Submission 8 (Fri Jun 04 19:23:11 GMT 2010) ----- ----- Attempting Submission 9 (Mon Jun 07 18:10:22 GMT 2010) ----- HST Phase II Proposal 12118 (12118.apt) successfully submitted. ----- Attempting Submission 10 (Mon Jun 07 19:23:54 GMT 2010) ----- The Palomar Transient Factory (PTF) has discovered a rare type of transient in the luminosity "gap'' between novae and supernovae. Located in a spiral arm of Messier 99, PTF10fqs is very red (effective temperature 3500 K) and slowly evolving. The spectrum is dominated by intermediate-width H-alpha (680 km/s) and calcium lines. The explosion signature is similar to M85 OT2006-1, SN 2008S and NGC 300-OT2008. The origin of these events is shrouded in mystery and controversy (and in some cases, in dust). Here, we propose a single-orbit observation to derive a precise astrometric position of this transient while it is still bright. This would allow us to firmly tie this HST observation with future searches of any remnant and serve as legacy observation for this rare and interesting source.

We request a single orbit with 6x358s exposures -- two exposures in each of the F390W, F606W, and F814W filters of WFC3. The pointings will be dithered in order to cover the chip gap. We specify an ORIENT range that assures that the target will not lie near the chip gap nor the chip edges. RESOLVED STELLAR POPULATIONS 0 false 0.0 1 false false false false false false SUPPORTED EXT-STAR EJECTA EMISSION LINE STAR IRREGULAR VARIABLE LUMINOUS BLUE VARIABLE NOVA-LIKE The target is at 12:18:50.082 +14:26:39.75. However, there are no guide stars available at that pointing, so we are pointing east and south of the target in order to obtain a single guide star. M99-OT-2010 J2000 12 18 50.1600 +14 26 39.20 J2000 WFC3/UVIS Imaging No No F390W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W POS-TARG DITHER 2.400 Purpose of this pattern is to bridge the gap between the WFC3 chips. LINE false true 2 85.754 WFC3-UVIS-DITHER-LINE 1 false 1275938438493 The scheduling data was generated by CASM 18.3.1. CASM was run in Phase II mode. /var/tmp/OPVisit44985.xml ORIENT range assures that the target will not lie near the WFC3 chip gap or too close to the chip edge. BEFORE date assures that observation will be made while the optical transient is still bright. However, the earliest possible observation is the most desirable. (Tic-Visit :proposal-id 12118 :visit-id "04" :proposal-version -1 :trans-version "20100505" :date "07-Jun-2010 15:20:35.0" :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 1732496 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12118 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12118 :visit-id "04" :orbit-number 1 :pcs-time 241 :si-vis-utilization 3004 :al-overhead-at-end 116 :internal-dur-at-end 670 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3245 :pcs-gap 0 ) true 1 0