Training Session, Tucson

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Training Session, Tucson
The Pan-STARRS Moving Object Processing System
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Thanks

• LSSTC

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Introductions
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Policies

• Tuesday
• No cell phones, laptops, etc.
• Wednesday, Thursday, Friday
• Whatever
• Parking Passes

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Schedule

• Tuesday Morning
• MOPS Overview
• Tuesday Afternoon
• MOPS Simulation Training
• Wednesday, Thursday, Friday
• MOPS Simulation running

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MOPS Collaborating Institutions

• Institute for Astronomy (IfA)
• Large Synoptic Survey Telescope (LSST)
• University of Pisa
• Jet Propulsion Lab (JPL)
• Carnegie Mellon University, Robotics Institute
  AUTON Laboratory
• Minor Planet Center (MPC)
• Spacewatch
• University of Helsinki

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MOUs (existent)

• JPLDifferential Orbit Determination Ephemeris
  Generation
• LSSTTwo year software engineer (Pierfederici)
• NEODysIOD and 2-night linking
• SpacewatchTargeted follow-up of interesting
  objects

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MOUs (in negotiations)

• MROTargeted follow-up of interesting objects

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The MOPS Team (IfA)
Larry DenneauSenior Software Engineer
Tommy GravJunior Scientific Researcher
now at JHU
Joe MasieroGraduate Student
Robert JedickeMOPS Manager, IfA Specialist
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The MOPS Team (IfA)
Jim HeasleySenior Professor
David TholenSenior Professor
Richard WainscoatSpecialist, UH Telescope
Support, Associate Chair
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The MOPS Team (extended)
Francesco PierfedericiLSST Software Engineer
Daniel ChangUH ICS Graduate Student
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The MOPS Team (External)
Steven ChesleyJet Propulson Laboratory
Jeremy KubicaCarnegie Mellon Robotics Institute
Mikko KaasalainenUniversity of Helsinki
Andrea MilaniUniversity of Pisa
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MOPS Workload
Pan-STARRS Management
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Pan-STARRS Solar System
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Asteroids

• PS4 will find as many asteroids in one lunation
  as have been identified since the discovery of
  Ceres in 1801

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PS4 NEOs

• Tens of thousands of NEOs

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PS4 the Main Belt

• 10,000,000 MB objects in ten years

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PS4 Comets

• Pan-STARRS will find 10X as many comets per year
  as all existing surveys
• 1,000s of comets in ten years operation
• INTERSTELLAR ! ! !

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PS4 TNOs

• 20,000 TNOs

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PS4 Distant Planets
Jewitt 2003, Project Pan-STARRS and the Outer
Solar System, EMP
New Plutos320AU
New Earths620AU (50AU)
New Neptunes1230AU (130AU)
New Jupiters2140AU (340AU)
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PS4 Minor Planet Summary
TNOs
Comets
Centaurs
Main Belt
NEO / PHO
Companions
Other Trojans
Jovian Trojans
Interstellar Visitors
Wide TNO Binaries
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MOPS Overview

• Identify known objects
• Discover new objects
• Derive observable parameters
• Catalogue objects
• Enable solar system science

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Terminology Review

• Single Occurrence Transient SOT
• A detection that is not at the same position as
  any other known stationary object in the past 30
  (TBR) days
• High S/N (HSD) Detection
• A detection that has a high probability of being
  a real object (gt5?)
• Low S/N (LSD) Detection
• A detection that has a low probability of being a
  real object (gt3?)
• Data Collection DC DB Database
• A generalized database

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Terminology Review

• Observing Cycle OC
• Integer number incrementing _at_ 0 UT on day
  closest to full moon
• Synthetic Object
• An artificial object with orbital and shape
  parameters
• Derived Object
• A synthetic or real object and its parameters
  derived from observations

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Terminology Review

• Detection (not an SOT)
• A statistically significant collection of pixels
  after image convolution with a shape kernel
• Tracklet
• A set of ?2 detections that may be observations
  of the same object
• Track
• A set of ?2 tracklets that may be observations
  of the same object
• Orbit
• A six parameter representation of the
  heliocentric path of an object

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Terminology Review
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Terminology Review
Evening Sweet Spot
Morning Sweet Spot
Opposition
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MOPS Top Level Design
Seamlessly combine existing softwareinto an
operational system.
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MOPS Top Level Design
TransientDetections
Intra-night Linking
OrbitDetermination
Inter-night Linking
Meta-data
SyntheticSolar System
Identification
Database
Attribution
Precovery
Two-Night Linking
PublishedObjects
Impact RiskAnalysis
GUI
Users
MPC
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Transient Detection (IPP)
4 Telescopes



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Intra-Night Linking (Tracklets)
First exposure
Second exposure

• 250 real detections / deg2
• 250 false detections / deg2

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Attributions
Legend
Tracklets
Known Objects
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Inter-Night Tracklet Linking (tracks)
Legend
FirstNight
SecondNight
ThirdNight
FourthNight
FifthNight
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Multiple Hypothesis Testing
O(n2)
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kd-tree solution
O(n log n)
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Initial Orbit Determination
Good IOD
Bad IOD
Legend
First Night
Second Night
Third Night
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Differential Orbit Determination
OD
IOD
Legend
First Night
Second Night
Third Night
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Orbit Identification
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PS1 Review DRM Surveys
DRM PS1Design Reference Mission
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PS1 Review DRM Surveys
? gt61 of time amenable to discovery of solar
system objects.
Some of the other surveys can also identify solar
system objects.
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PS1 Review Filters
g
r
i
z
y
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PS1 Review w filter
wgri
g
r
i
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PS1 Review Bandpasses
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PS1 Review Sensitivities
The trailed NEO single exposure sensitivityis
equivalent to V23 in g, r, and i bands.
The discovery of tracklets is equivalentto a 5
sigma limiting magnitude of V22.8
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PS1 Review Sky-Plane Tesselation
Outside view of the celestial sky tesselated into
6252 fields. Of these fields, 5464 have boresight
centers gt -30 Declination.
The 3 field of view of PS1 with an inscribed
hexagon of 5.84 square degrees.
The twenty percent overlap from a single
tesselation due to the circular field of view.
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PS1 Review Sky-Plane Tesselation
Outside view of the celestial sky tesselated into
6252 fields. Of these fields, 5464 have boresight
centers gt -30 Declination.
The 3 field of view of PS1 with an inscribed
hexagon of 5.84 square degrees.
The twenty percent overlap from a single
tesselation due to the circular field of view.
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PS1 Review Sky-Plane Tesselation
Outside view of the celestial sky tesselated into
6252 fields. Of these fields, 5464 have boresight
centers gt -30 Declination.
The 3 field of view of PS1 with an inscribed
hexagon of 5.84 square degrees.
The twenty percent overlap from a single
tesselation due to the circular field of view.
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Observing Strategy

• Every survey mode obtains at least twoimages at
  each location separated by a Transient Time
  Interval (15-30 minutes)
• serendipitous positions colours
• Solar system survey re-visits each location after
  3-6 days
• obtain 3-4 nights/month
• 12 day arc

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PS1 Review 3p Survey
210 deg 14 hrs
Opposition
15 deg 1 hr
90 dec
Equator
-30 dec
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PS1 Review 3p Survey
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PS1 Review 3p Survey
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PS1 Review 3p Survey
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PS1 Review 3p Survey
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PS1 Review 3p Survey
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PS1 Review 3p Survey
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PS1 Review 3p Survey
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PS1 Review 3p Survey Annual
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PS1 Review Solar System Survey
60120 3p survey
61 solar system surveying (gri) 5 sweet spot
surveying (w?)
PA SweetSpots w/ TTI paired images
Dark and grey time
All photometric non-photometric nights
multiple filters
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MOPS TAO Survey Simulations
TOTAL 828 fields 5,460 deg2
Ecliptic Latitude
Ecliptic Longitude w.r.t. Opposition
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Next Generation Solar System Survey Simulation
NEO rates of motion
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Next Generation Solar System Survey Simulation
NEO longitudinal rates0.65/day in
sweet-spots -0.30/day at edge of opp.
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Next Generation Solar System Survey Simulation
0.65/day
First night
Second night
Third night
Declination
Sweet-Spot
RA
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Next Generation Solar System Survey Simulation
-0.3/day
First night
Second night
Third night
Declination
Opposition
RA
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Next Generation Solar System Survey Simulation
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Next Generation Solar System Survey Simulation
Scheduling Efficiency
Region
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MOPS Synthetic Solar System
250,000 Near Earth Objects (w/ IEOs, Hlt25)
10,000,000 Main Belt
320,000 Trojans (Jupiter)
100,000 Trojans (Mars,Saturn,Uranus)
60,000 Centaurs
72,000 Trans-Neptunian Objects
20,000 Scattered Disk Objects
Jupiter Family Comets
Halley Family Comets
10,000 Long Period Comets
0 Xtreme Objects
10,842,000 TOTAL
10,000
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NEO Sky-Plane Density
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Sweet-Spot Motion Vectors
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MOPS Sub-System Efficiency
TransientDetections
gt99
gt98
gt90
Intra-night Linking
OrbitDetermination
Inter-night Linking
Meta-data
SyntheticSolar System
??
Identification
Database
Attribution
gt90
gt90
Precovery
Two-Night Linking
??
PublishedObjects
Impact RiskAnalysis
GUI
Users
MPC
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MOPS Sub-System Inter-communication
working
designed
TransientDetections
Intra-night Linking
OrbitDetermination
Inter-night Linking
Meta-data
SyntheticSolar System
Identification
Database
Attribution
Precovery
Two-Night Linking
PublishedObjects
Impact RiskAnalysis
GUI
Users
MPC
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MOPS Data Collection Interface

• http//mopsdc.ifa.hawaii.edu/

Synthetic or Real Data
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MOPS Data Collection Interface
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MOPS Data Collection Interface
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MOPS Data Collection Interface
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MOPS Data Collection Interface
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Spacewatch Data
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Spacewatch Data
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MOPS Software Documentation
)
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MOPS Unit Simulation Testing
)
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MOPS Wiki (http//ps1sc.ifa.hawaii.edu/PS1wiki/ind
ex.php/MOPS)
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MOPS Timeline

• Operational Readiness Review (ORR)in six months?
• PS1 ORRin eight months?

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MOPS Documentation

• Critical Systems Engineering Documentation
• Complete Evolving
• PSDC-510-001 System Concept Definition
• PSDC-530-001 Software Requirement
  Specification
• PSDC-530-002 Algorithm Design Description
• PSDC-530-003 Software Design Description
• PSDC-940-005 MOPS-IPP Interface Control
  Document
• PSDC-940-007 MOPS-PSPS Interface Control
  Document
• PSDC-930-007 MOPS-PSPS Interface Requirement
  Specification
• Not started
• Software Version Description
• Sub-system Test Plan
• Sub-system Maintenance Plan
• Software User Manual

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MOPS Documentation

• Supplementary Documentation
• PSDC-500-001 - Orbit Determination Ephemeris
  Software
• PSDC-500-003 - Solar System Survey Simulation
• PSDC-500-003 Revised Solar System Survey
  Simulation
• PSDC-500-004 - Solar System Model
• PSDC-500-006 - Sour Spots
• PSDC-NNN-MMM - Efficiency Determinator
  Desirements
• PSDC-NNN-MMM - Efficiency Determinator Design
• PSDC-NNN-MMM - Installation
• PSDC-NNN-MMM - Rare Objects
• PSDC-NNN-MMM - Trail Fitting
• PSDC-NNN-MMM - Unit and Simulation Testing
• PSDC-NNN-MMM - Comet Fitting
• PSDC-NNN-MMM Data Exchange Standard

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MOPS Publications Published
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MOPS Publications In Prep
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MOPS Publications Future

• Pan-STARRS Moving Object Processing System

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Thanks!