Science Keywords: Select from 3 to 5 items.
Target 2014MU69: There is no need or capability to test the scheduling of observations of moving targets in Phase I. This warning will go away the next time the proposal is loaded.0Assigned ID: 3
----- Attempting Submission 1 (Thu Feb 11 20:56:56 GMT 2016) -----1) Visit Planner won't run on moving target. I have manually checked the windows and
it should schedule at the requested times.
2) There is only one relevant science keyword from the list for this project.Error in orbital elements corrected (change to semi-major axis). As before,
we should confirm the ephemeris predictions between STScI and SwRI.
We will run a contaminating star check on the observations once there are
candidate windows to consider.872195364----- Attempting Submission 1 (Thu Feb 18 20:39:06 GMT 2016) -----
HST Phase II Proposal 14485 (prop.apt) successfully submitted.
Receipt: # 14485-1
----- Attempting Submission 2 (Tue Mar 01 00:05:16 GMT 2016) -----Astrometry of 2014MU69We propose two orbits of time to make high-precision astrometric measurments of the New Horizons extended mission target, 2014MU69. These observations are in direct support of the navigation of New Horizons leading up to its encounter in Jan 2019. These two visits are specifically in support of a trajectory correction maneuver planned for July 2016. This astrometry is a key element leading up to a close investigation of a Cold-Classical Kuiper Belt Object, one of the most primitive members of our solar system.These observations will use the full field of WFC3/UVIS due to its improved broadband PSF and detector sensitivity compared to ACS. This was the HST instrument used to successfully to detect 2014MU69 and our other potential KBO targets in our 2014 search campaign. We are using the F350LP filter for its sensitivity and image quality as well as consistency with the prior observations. Our observing strategy is based on the successful strategy developed for our 2014 and 2015 HST KBO search and followup campaigns. For each HST orbit we will use WFC3 with the F350LP filter to obtain five 370 second exposures. We will track on the known motion of 2014MU69, which results in trailing of stars, but does not prevent their removal to provide robust detections in single orbits as shown. The formal uncertainty of the position on 15 March 2016, based on 2014 and 2015 astrometry, is 15 mas. Thus, the target can easily be placed near the center of WFC3/UVIS2, and very bright stars can be avoided by adjusting the timing of the observations as necessary. Once preliminary observing windows are available we need to examine the background star field for contamination and final scheduling to avoid field stars. We require acquisition of the full WFC3 field for precise astrometric solutions. The first visit needs to schedule in the 7-day window starting on March 15 and the second in a 7-day window startin on May 15. The one week period is chosen to provide ample scheduling flexibility and could be shifted by another day or two if needed. The timing of these weeks is controlled by avoiding the time around quadrature when the sky-plane velocity is below 1 arcsec/hour and the need to get both visit spread out in time and executed in time to support the July trajectory correction maneuver (TCM). The TCM development schedule requires that we complete the second visit by late May.Solar System0SUPPORTEDSOLAR SYSTEMASTEROIDKuiper-Belt ObjectTYPE=ASTEROID,A=44.232408255109,E=0.035776003052 ,I=2.453085134109 ,O=158.938296047929 ,W=181.783023901528 ,M=305.281257673465 ,EQUINOX=J2000,EPOCH=15-MAR-2016:00:00:00,EpochTimeScale=UTCEARTHWFC3/UVISImagingNoNoF350LPWFC3/UVISImagingNoNoF350LPCELESTIALOTHER.030Objects will naturally dither themselves in a predominantly east-west direction.
This dither pattern uses offsets perpendicular to the mean motion of the objects
with a two-level pattern so that the dither cannot lead to a false detection with
coherent motion. The overall pattern is six positions with 0.75 pixel spacing.LINEfalsetrue50LINE1falseUsing ephemeris for target 14485-01-2014MU69ephemeris data for target 14485-01-2014MU69 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 15.213 to 17.089. ephemeris interval: 16.060 to 18.060The scheduling data was generated by CASM 24.0.CASM was run in Phase II mode./tmp/OPVisit6402880759494370960.xml(Tic-Visit
:proposal-id 14485
:visit-id "01"
:proposal-version -1
:trans-version "20160129"
:date "29-Feb-2016 17:03:18.0"
: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 1443744
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14485
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14485
:visit-id "01"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2656
: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 2992
:pcs-gap 0
)true10Using ephemeris for target 14485-02-2014MU69ephemeris data for target 14485-02-2014MU69 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 15.213 to 17.089. ephemeris interval: 16.060 to 18.060The scheduling data was generated by CASM 24.0.CASM was run in Phase II mode./tmp/OPVisit3886200742058778862.xml(Tic-Visit
:proposal-id 14485
:visit-id "02"
:proposal-version -1
:trans-version "20160129"
:date "29-Feb-2016 17:03:20.0"
: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 1443744
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14485
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14485
:visit-id "02"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2656
: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 2992
:pcs-gap 0
)true10