If there are questions, please contact Melissa McGrath (410.338.4545) or Mike Brown cell phone (626.644.4224). ----- Submission 1 (Thu Mar 11 15:57:19 GMT 2004) ----- Assigned ID: 516 ----- Submission 1 (Fri Jan 23 19:17:13 GMT 2004) ----- Characterization of a planetary-sized body in the inner Oort cloud Our recent discovery of a planetary-sized body in the inner Oort cloud presents the opportunity for quick low-cost survey of this extremely interesting object. With just 2 orbits we will be able to independently determine the size of this object, definitely determine if satellites exist, and search for the shortest timescale photometric variations. As little is known about this body, it is difficult to predict what results will come from these observations, but it is clear that such an object deserves observations at the high resolution that only HST can provide.
Two orbits of ACS/HRC exposures using the F435W filter, similar to previous observations of Quaoar. A field star is required within the field of view for PSF. Fixed target coordinates are used because the target object is moving very slowly. SOLAR SYSTEM 0 false false false false false SUPPORTED SOLAR SYSTEM PLANET J2000 00 00 0.00 +00 00 0.00 J2000 ACS/HRC Imaging No F435W ACS/HRC Imaging No F435W (Tic-Visit :proposal-id 10041 :visit-id "01" :proposal-version -1 :trans-version "20031015" :date "11-Mar-2004 10:43:21.0" :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 588880 :tdrss-contact-duration 0 ) (Tic-Obset :proposal-id 10041 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 10041 :visit-id "01" :orbit-number 1 :pcs-time 365 :si-vis-utilization 2818 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3201 :pcs-gap 0 ) (Tic-Orbit :proposal-id 10041 :visit-id "01" :orbit-number 2 :pcs-time 300 :si-vis-utilization 2736 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3201 :pcs-gap 0 ) false