Preparing to Do Solar System Science with LSST Henry Hsieh - PowerPoint PPT Presentation


 Preparing to Do 
 Solar System Science with LSST 
 Henry Hsieh • Discovery is just the beginning! • Community software and infrastructure development • General software considerations • Moving forward


 
 Discovery is just the beginning! • Things that LSST/MOPS will provide: 
 - astrometry, photometry, basic morphology 
 - orbital elements 
 - best-fit H,G 12 phase function parameters 
 - orbital/observing geometry parameters (hopefully) 
 - multi-aperture photometry (hopefully) • Things that the SSSC or individual users will need to measure/derive/produce: 
 - best-fit parameters for other phase function models 
 - colors and taxonomic classifications 
 - rotation rates, shape parameters, pole orientations 
 - proper elements, family associations, resonant object identification 
 - advanced activity detection parameters 
 - activity characterization parameters 
 - forced photometry for solar system objects 
 - tools for debiasing survey results 
 - ...and many others!

Community Software and Infrastructure Development

General Software Considerations • Goal is to minimize redundant efforts 
 - By combining efforts, can investigate more interesting problems 
 - Producing higher-order data products will also lower barriers to data use 
 (e.g., NEOWISE albedos) • Desired time-scale for processing 
 - Highly time-sensitive (immediate/daily): e.g., activity detection 
 - Moderately time-sensitive (monthly): e.g., phase function determination 
 - Low time-sensitivity (yearly): e.g., family association identification • Is image data required? 
 - Ideally would determine common image needs and run multiple analyses on 
 single retrieved images • How to prioritize? 
 - Probably best to use combination of importance to high-priority science goals 
 and consideration of inter-dependencies of different software tools

General Software Considerations • Need ability to derive data products from time-constrained data sets to study changes in physical/dynamical properties 
 - e.g., studying color changes after disruption events 
 - e.g., studying rotation rate changes in comets during perihelion passages • Determining properties for objects with sub-optimal data sets 
 - e.g., "single-filter" phase functions by assuming colors 
 - e.g., color determination from linear phase functions 
 - e.g., somehow incorporating data from follow-up observations • For alerts to account for user-generated products, SSSC will (probably) need its own alert system

Moving Forward • Software development white papers 
 - Software development task roadmap/prioritization -- M. Schwamb 
 - Detailed discussion of software development tasks -- H. Hsieh 
 - Contact authors to get involved • Funding proposals 
 - Belfast group has been funded for LSST work for a number of years now 
 - NSF is obvious target, but could also pursue NASA funding 
 - Deadline for "no-deadline" SPG NSF proposals at end of September; 
 otherwise all proposals will revert to Nov 15 deadline this year 
 - Many scientists need salary support; also travel support to attend PCWs 
 - Discussion at Solar System Sprint included pushing for NASA support at 
 upcoming SBAG meeting 
 - Plans to also lay groundwork by publishing software/cadence white papers • Many test data sets currently available 
 - e.g., ZTF, ATLAS, DECam