Scientific Category is a required field. Science Keywords is a required field. Science Keywords: Select from 3 to 5 items. Wavelength is a required field. Please specify your scheduling constraints or 'No Constraints' on all Observation forms. 0 Assigned ID: 1158 ----- Attempting Submission 1 (Wed Sep 09 11:08:46 GMT 2015) ----- ----- Attempting Submission 2 (Wed Sep 09 12:37:03 GMT 2015) ----- Joint Chandra/HST Proposal A target acquisition should probably be performed before doing spectroscopy or coronography with STIS or COS. REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE REFERENCE-FRAME MUST BE ICRS OR GSC1 FOR SMALL APERTURE COS FUV PSA science exposures with extended targets have special calibration limitations. See the proposal instructions for more details. COS FUV PSA science exposures with extended targets have special calibration limitations. See the proposal instructions for more details. COS FUV PSA science exposures with extended targets have special calibration limitations. See the proposal instructions for more details. COS FUV PSA science exposures with extended targets have special calibration limitations. See the proposal instructions for more details. Resubmitting with ETC information provided for Visit 2 (COS). Also, WFC3 UVIS imaging was changed from UVIS-FIX1 to UVIS-FIX2, at recommendation of Contact Scientist, to avoig ghosting on UVIS1. The remaining warnings have been reviewed and are benign for our use case. 221486777 ----- Attempting Submission 1 (Fri Oct 16 15:20:16 GMT 2015) ----- HST Phase II Proposal 14359 (N103B_ph2.apt) successfully submitted. Receipt: # 14359-1 ----- Attempting Submission 2 (Fri Oct 23 21:41:28 GMT 2015) ----- ----- Attempting Submission 3 (Mon Oct 26 21:14:21 GMT 2015) ----- We have reviewed the warning messages and they are benign for our program. The COS target position is known accurately, and the COS aperture positioning is not critical, so we have not invoked an offset acquisition. Other wan=rnings about "extended" starget and such are of no consequence. N103B: A Type Ia Remnant with Circumstellar Interaction... Kepler's Older Cousin? We have recently found that the LMC supernova remnant N103B is only the second known case (after Kepler's SNR) of a Type Ia SN remnant that is interacting with dense circumstellar material (CSM) long after its explosion (1,000 years). We are obtaining a deep 400 ks Chandra observation and also received 5 orbits of HST time to study this fascinating object. The nature of the progenitor systems of Type Ia SNe is not well understood. Our WFC3 and COS FUV observations will both locate the SN ejecta products and characterize the distribution of the CSM, presumably created by mass loss from the pre-SN system. We will also measure or put limits on the expansion of the remnant. Together, these observations will illuminate the nature of both the progenitor system and the explosion mechanism itself. This program is paired with a Chandra program, but the observations do not need to be coordinated. Here we request WFC3 UVIS and IR imaging and COS FUV G140L spectra of the supernova remnant N103B in the Large Magellanic Cloud. The imaging will include WFC3/UVIS F657N, F502N, and F673N narrow bands plus F547M continuum to allow star subtraction. Then with WFC3/IR, we will do F164N ([FeII] imaging with F160W for star subtraction. The COS spectrum will be obtained for a bright knot of emission in the supernova remnant. Its position has been measured accurately with respect to the GSC 2.3 catalog stars using archival images from program 13282 (Chu PI). The knot of emission is large enough that a dead reckoning slew to the indicated position is sufficiently accurate for our needs. (An offset TA from a star was considered, but we opted not to do this.) The FUV G140L grating with 4 FPPOS positions is used for the spectroscopy. ISM AND CIRCUMSTELLAR MATTER 12 false false false false SUPPORTED ISM SHOCK FRONT SNR YES The source is an extended emission line source, so a V-magnitude is not really relevant for this case. This position is the geometric center of the SNR, as measured on an archival WFC3 F656N image from program 13282 (Chu, PI). SNR-J050854-684447 J2000 J2000 6563: 4.4E-15 ergs/cm2/s/arcsec2 ISM KNOT SNR YES Extended emission-line knot in SNR N103B; V mag is irrelevant. Position as measured on archival WFC3 F656N image from program 13282 (Chu, PI) corrected to GSC 2.3 catalog system. J2000 F(CIV-1550)=7E-15 ergs/cm2/s, other emission lines fainter COS/FUV Spectroscopic No No G140L 1280 WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F164N WFC3/UVIS Imaging No No F502N WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F657N WFC3/UVIS Imaging No No F673N POS-TARG DITHER 0.605 LINE false false 3 41.788 WFC3-IR-DITHER-LINE-3PT 1 false POS-TARG DITHER 0.572 LINE 0.365 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 2 false POS-TARG MOSAIC DITHER 4 2.414 WFC3-UVIS-DITHER-BOX false 81.785 true 0.112 0.173 4 85.759 POS-TARG WFC3-UVIS-GAP-LINE 23.884 3 false /private/var/folders/th/7gqts1jd1d5631_1msrthvz0000403/T/OPVisit7474001197140730367.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. WFC3/UVIS (Tic-Visit :proposal-id 14359 :visit-id "01" :proposal-version -1 :trans-version "20150609" :date "26-Oct-2015 17:10:53.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 6134528 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14359 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14359 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3220 :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 3556 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14359 :visit-id "01" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3326 :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 3556 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14359 :visit-id "01" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3326 :al-overhead-at-end 124 :internal-dur-at-end 699 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3556 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14359 :visit-id "01" :orbit-number 4 :pcs-time 222 :si-vis-utilization 3294 :al-overhead-at-end 0 :internal-dur-at-end 576 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3556 :pcs-gap 0 ) true 4 0 /private/var/folders/th/7gqts1jd1d5631_1msrthvz0000403/T/OPVisit2370189321541443099.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 14359 :visit-id "02" :proposal-version -1 :trans-version "20150609" :date "26-Oct-2015 17:10:55.0" :trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 34944 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14359 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14359 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3221 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3556 :pcs-gap 0 ) true 1 0