EO1 Extended Mission Testbed Activities

1
EO-1 Extended Mission Testbed Activities
Operational Testbed
Autonomous Coordination
End-to-End Communications
Onboard Processing

• Autonomous Science Experiment(ASE)
• Migration of ST6 onto EO-1
• TBS

Onboard Cloud Cover Detection Validation 180K
1

• Preliminary EO-1 Autonomy Experiment
• Onboard planning
• Onboard feature detection
• Dynamic SW Bus
• 720K

2

• EO-1, Terra, Aqua Sensorweb Demo
• Uses MODIS inst center to detect volcanoes
• Uses ASE to coord image collect autonomously
• no additional funding needed

5

• Sensorweb Simulator
• Related activity but not spawned by EO-1
• M. Seablom
• 200K

• Smart Antenna
• Ground phased array
• Cell tower com to sat
• AIST ESTO NRA Proposal

6

• EO-1/ Gnd Sensor Sensorweb
• Sensors in Huntington Botanical Garden trigger
  EO-1 image
• no additional funding needed

• Hyperspectral Compression WG
• Onboard data mining
• Onboard intelligent image compression
• Working group

• Dynamic Resource Management
• Autonomous scheduling of Ground Station by
  satellite
• AIST ESTO NRA Proposal

3
4
Intelligent Distributed Spacecraft Technology
Testbed NMP (JPL) Related activity
Funded by ESTO
Funded by NMP
Proposed activity
Note Numbered boxes are detailed in following
slides.
2
EO-1 Onboard Cloud Cover Detection With Onboard
Replanning
Funded by ESTO
1
Funded by NMP
If Score lt N
Proposed to AIST ESTO NRA
3
2
Yes
No
Message GS to cancel old downlink and schedule
new contact receive confirmation
Calculate cloud score onboard (L0, L1 cloud alg)
Replan alternate image onboard and reschedule S/C
activities to accomplish new image
Downlink as planned to 1st GS
Take Image
Screen for clouds onboard
3
EO-1 Testbed Target Architecture

• Create seamless messaging system across
  constellation/mission components
• Multi-protocol
• Easy integration of heritage components to create
  ad hoc constellations
• Components send each other messages similar to
  internet (URL) by knowing registered name,
  details taken care of by system
• Once in place, mission autonomy easy to create
  and integrate

Dynamic Software Bus (DSB) Across Multiple
Entities
SW task within mission component
Internal DSB
Internal DSB
Registrar Server
Proposed to AIST ESTO NRA
3
Bus I/F Task
Example This could be Alaska Ground Station or
Mission Operations Center
Funded by NMP
2
5
4
Preliminary EO-1 Autonomy Experiment Flight
Software Architecture (Conceptual)
Science High Level Goals
Science Goal Monitor(on ground) -response
seconds to days
Status (web-based)
Sub-goals
ObservationGoals
Status
CASPER Planner (in S/C) response in 10s of
minutes
Onboard Science
Instrument Data
Image
Plans of Activities(high level)
Band Stripping SW
High level S/C State Information
New
SCL response in seconds with rules, scripts
Commands (low level)
2
S/C State
Funded by NMP
EO-1 Conventional Flight Softwarereflexive
response
Existing
Control Signals (very low level)
Sensor Telemetry
Spacecraft Hardware
On spacecraft
5
Integrated S/W Architecture
Funded by NMP
2
EO-1 TLM Channels VC0 VC3 2 APIDs for SCL
Control 2 APIDs for SCL real-time control
New
Mem Dwell Cloud Cover Task
SCL Commands(to CDH M5 via WARP Remote
Terminal)
SCL Script Tasks
CASPER ScienceTask
SCL Command Tasks
SCL Telemetry Tasks
WARP Remote Terminal
Bridge Task
Existing
Existing WARP Drivers ...
WARP Software Bus (SB)
SCL Software Bus
VxWorks / Tornado (OS)
6
Preliminary EO-1 Autonomy Experiment Autonomous
Science Applications
Funded by NMP
2

• Autonomous Change Detection
• Ice formation/retreat, flooding
• Atmospheric Change
• Volcanic processes (Lava, mud, plume)

• Autonomous Feature Identification
• Volcanic cinder cones and craters
• Impact craters
• Sand dunes

• Autonomous Discovery
• Identify features which differ from the
  background

• Downlink science products science events,
  features - not raw data
• Achieves 2x-100s x data reduction!

7
Preliminary EO-1 Autonomy Experiment Autonomous
Science Rapid Reaction Concept

• Description
• An autonomously-planned re-allocation of
  resources and subsequent observation triggered by
  onboard data analysis
• Increases science content of returned data
• Rapid Reaction Example Scenario
• Observe target as part of base observation plan
• Repeat observation for change detection purposes
• Detect change if magnitude of change is
  sufficient, then
• Planner triggers third observation to be obtained
  on next suitable orbit within 48 hours or by
  another spacecraft
• New target may cover original target and/or a new
  area affected by the process

Funded by NMP
2
8
Target Purpose for Sensorweb and Dynamic Software
Bus Experiments

• Key functionality to demonstrate with sensorwebs
  and dynamic software bus
• Autonomous event triggered image
• EO-1 image triggered by MODIS image
• EO-1 image triggered by data value of ground
  sensor
• Subpixel measurement correlation between ground
  truth instruments and remote sensing pixels
• EO-1 pixels are 10 meters or 30 meters
• Huntington Botanical Garden sensors within a few
  meters of each other in some cases
• Autonomous resource optimization for mission
  resources
• E.g. increase data rate or use of mission
  resources over area of interest for rapidly
  changing events

9
EO-1/Ground Sensorweb Demo Scenario
CASPER replans EO-1 tasking by calculating times,
slews and momentum management and sends
appropriate real time commands to CDH system to
execute plan
EO-1 (Hyperion ALI)
7
EO-1 Mission Ops Center
S/C Load w/ Lat/Long
MOPSS
ASIST/FEDS
5
Target Lat/Long
6
8
Downlink image
USGS Eros Data Center
EO-1 is notified and autonomously replans to
take a closer look
Target latitude and longitude
9
4
Configure sensorweb for needed data and triggers
2
Science Goal Monitor WS
Data from ground instruments continuously sent to
internet light flux, air temp, soil temp, soil
moisture etc.
data
3
3
10
Status of request coordinated image/data
1
High Level Goal eg. When soil moisture gt X
schedule EO-1 to take image ASAP
No additional funding needed for preliminary
experiment
4
10
EO-1/Terra/Aqua Sensorweb Demo Scenario
EO-1 is notified and autonomously replans to
take a closer look
CASPER replans EO-1 tasking by calculating times,
slews and momentum management and sends
appropriate real time commands to CDH system to
execute plan
Terra/Aqua images wide swath w/MODIS
7
3
Downlink images
Downlink images via direct broadcast
8
6
Target Lat/Long
USGS EROS Data Center (EDC)
8
Image target
EO-1 Mission Ops Center (MOC)
MODIS Instrument Center
S/C Load w/ Lat/Long
Rapid-Fire Workstations
ASIST/FEDS
2
Request forest fire alert within XX area
E-Mail alert within 3 hrs of image acquisition
with forest fire lat/long
4
Science Goal Monitor (SGM) WS

• Automatically coordinate with MOC on following
  activities
• Convert lat/long to WRS
• Create LTAP record
• Calculate ALI frame rate
• Priority scheme
• Reformat for ingestion by CASPER(onboard planner)
• Create and transfer load to ASIST

5
9
High Level Goal eg. When MODIS detects a forest
fire within XX area, take a closer look with EO-1
Hyperion and/or ALI
1
Status of request coordinated images(from EDC
DAAC)
11
Smart Ground Antenna Proposal
Proposed to AIST ESTO NRA
6

• Conceptual antenna system architecture for low
  earth orbiting satellites, based on small dishes
  (left) and alternative concept based on Space Fed
  Lens (right), placed on backdrop of tennis court
  to visualize size
• No moving parts, reliable, inexpensive
• Use adaptive beamforming (phased array) to
  electronically point antennas
• Enable cell-tower network type of ground to
  space communications to enable constant contact
  with S/C

12
Other Testbed Activities (Completed or Proposed)

• The following are the remaining completed or
  proposed activities on the EO-1 testbed
• A stare maneuver to raise the signal-to-noise
  ratio of the instruments to undertake a coral
  reef survey for NOAA (complete)
• Three Axis Magnetometer for spacecraft
  contingency pointing (study partially complete
  with complete validation proposed)
• Image Aided Navigation for fine guidance during
  hyperspectral imaging (proposed)