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,G12 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;

• therwise 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