0 Assigned ID: 1204 ----- Attempting Submission 1 (Fri Apr 07 23:57:50 GMT 2017) ----- This is a simple observing proposal. Just one visit with four slightly dithered images to look for any moons around a distant Kuiper Belt Object. 1615559134 ----- Attempting Submission 1 (Thu Jul 20 18:42:48 GMT 2017) ----- A Satellite Search of a Newly Discovered Dwarf Planet All of the largest Kuiper Belt Objects have relatively small, close-in satellites. These satellites are likely produced by direct collisions on the primaries surface and show Earth-Moon forming impacts are likely the norm of planet formation. We recently discovered the ninth intrinsically brightest KBO, 2013 FY27, likely making it one of the top 10 largest KBOs. The largest 15 KBOs have been searched for satellites using HST, with 11 of those found to have satellites. Knowledge of a satellite are important for determining the density and thus internal structure of the KBO as well as its collisional history. 2013 FY27 is extra interesting because its size is likely in the transition region. The largest several KBOs seem to have higher densities than smaller KBOs as well as show abundant signs of water ice and methane ice. In addition, all the KBOs that are likely larger than 2013 FY23 have known satellites, except for Sedna, while the smaller KBOs satellites are not as prevalent. We propose to search for satellites of 2013 FY27 for the first time with deep, high resolution imaging to see if this transition sized dwarf planet has a satellite, which can further constrain its density. Need to observe asteroid 2013 FY27 with multiple images to look for satellites around the object. Solar System 6 false false false false false false SUPPORTED SOLAR SYSTEM NO Need to observe 2013 FY27 with several images to look for satellites. Want any stars or background sources to move several pixels between first and last image (i.e. from parallax effect of 2013 FY27) in order to have any background stars move so one can tell if an object is a background source or a satellite moving with 2013 FY27. Thus only want to observe 2013 FY27 within a month or so of opposition when it is moving greater than about 1 arcsecond per hour or 0.00028 arcseconds per second. This would be anytime between mid January 2018 to mid April 2018. ASTEROID ASTEROID 2013 FY27 TYPE=ASTEROID,A=58.94485982512065,E=0.3895064721673114,I=33.06956933841344,O=187.0983243598756,W=139.4577723243537,M=208.647199067439,EQUINOX=J2000,EPOCH=07-MAY-2014:00:00:00,EpochTimeScale=TDB ANGULAR_RATE 2013FY27 FROM EARTH GT 0.00028 EARTH WFC3/UVIS Imaging No No F606W Using ephemeris for target 15248-01-2013FY27 The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. The one and only visit for this program. To get 4 long exposure images in the F350LP filter. (Tic-Visit :proposal-id 15248 :visit-id "01" :proposal-version -1 :trans-version "20170613" :date "20-Jul-2017 14:37:41.0" :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 1154992 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15248 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15248 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2838 :al-overhead-at-end 0 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) false 1 0 Just simply want the main object in the center of the field with no gaps or dead areas near it. Just simply want the main object in the center of the field with no gaps or dead areas near it. Just simply want the main object in the center of the field with no gaps or dead areas near it. Just simply want the main object in the center of the field with no gaps or dead areas near it.