0 Assigned ID: 934 ----- Attempting Submission 1 (Fri Apr 07 21:39:28 GMT 2017) ----- HST Phase I Proposal 934 (PMs in 602.submitted.pdf.apt) successfully submitted. Receipt: # 934-1 ----- Attempting Submission 2 (Fri Apr 07 21:45:16 GMT 2017) ----- changed orient as per Christopher Johnson to get guide stars -911100334 ----- Attempting Submission 1 (Fri Jul 14 20:52:38 GMT 2017) ----- ----- Attempting Submission 2 (Tue Jul 03 15:41:37 GMT 2018) ----- This is a small 2 orbit proposal designed to measure the internal dynamics of NGC602, a small region of intense star formation in the Wing of the SMC, with a low gas and dust density that has been often considered an unfavorable place for star formation. Small regions of massive star formation are important to study for our understanding of the process of star and cluster formation, the ionization of the interstellar medium, and the injection of energy and momentum into their host galaxy. By combining our new observations with archival ACS/WFC data acquired in July 2004, we will be able to measure the relative proper motions of the NGC602 sub-structures better than 2.3 km/s and investigate the nature of the apparently isolated massive stars found around NGC602. This study will provide unique observational data to characterize the early phase of cluster evolution and test cluster formation theories. It will also address significant open issues in star formation, cluster dynamics and the origin of isolated supernovae and GRBs. This is an astrometric proposal aimed to measure proper motions in a massive star-forming region in the Small Magellanic Cloud. Observations are designed to duplicate data acquired in 2004 by Nota et al. in program GO-10248. In order to minimize uncertainties we ask to use exaclty the same orients and dither patterns used in Nota's program. Stellar Populations 6 false false false false false false false SUPPORTED STELLAR CLUSTER OB ASSOCIATION J2000 J2000 ACS/WFC Imaging No No F555W ACS/WFC Imaging No No F814W 1500065116716 The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 15354 :visit-id "01" :proposal-version -1 :trans-version "20170613" :date "14-Jul-2017 16:45:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "27" :si-bright-earth-limb-angle 20.0 :data-volume 3410688 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15354 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15354 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3204 :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 3585 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15354 :visit-id "01" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3142 :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 3585 :pcs-gap 0 ) false 2 0