Transcript Document

University of California, Berkeley
Space Sciences Laboratory
ICON End-To-End Operations
Philosophy
Will Marchant, Manfred Bester, Carl Dobson,
Scott England, Stewart Harris, Mark Lewis, Will Rachelson,
Bryce Roberts, Irene Rosen, and Ellen Taylor
Space Sciences Laboratory
University of California, Berkeley
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Operations History at UCB/SSL
EUVE
FAST
RHESSI
NuSTAR
UCB/SSL operated 10 NASA Explorer
spacecraft over a period of more than
20 years (7 are currently operational).
CHIPS
ICON
ICON, the 11th
spacecraft, is
scheduled for
launch in 2017.
THEMIS / ARTEMIS
Mission Operations Center
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BGS 11-m
Pasadena, CA, December 16-18, 2014
Operations Facilities at UCB/SSL
Multi-mission Operations Center
Berkeley Ground Station
11-m S-band antenna and equipment racks
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ICON Mission Implementation
MIGHTI
Mission Summary
Cost
$145M (FY11)
$163M (RY)
Launch
Vehicle
Option B (Pegasus),
Reagan Test Site
Spacecraft
LEOStar-2 bus,
3-axis stabilized,
no consumables
Launch
June 2017
Orbit
575 km circular, 27°
inclination
Ground
Segment
Berkeley Ground
Station, WGS, WS1,
Santiago
Mission &
Science Ops
24 months Phase E,
Operated from UCB
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EUV
IVM
FUV
S/C
4
Pasadena, CA, December 16-18, 2014
Photo Courtesy of Orbital Sciences Corporation
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ICON Mission Science Objectives
Measure altitude profiles of airglow near the Earth limb at visible and
UV wavelengths via remote sensing, and measure in-situ ion densities
and flows near the local magnetic field line to determine the connection
between terrestrial weather and space weather.
300 km
200 km
100 km
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ICON Participating Institutions and Team Roles
Project Management
Systems Engineering
S&MA
UV Instruments
Payload Electronics
Mission/Science Ops
MIGHTI Neutral Wind
Interferometer (2)
Naval Research Laboratory
Ion Velocity Meter (2)
UT-Dallas
UC Berkeley
Payload Structure
LEOStar-2
Spacecraft
Observatory I&T
ATK-Magna
FUV Calibration
Orbital Sciences Corporation
Centre Spatial de Liège
GSFC – Explorers Office
KSC – LV Services
Instrument Support
Cameras/electronics
Payload I&T
Space Dynamics Lab
NASA
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ICON Mission Operations System Overview
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Mission Operations System Architecture Overview
 Most internal MOC systems and
interfaces required for ICON are
operational already within the multimission support environment.
 All ICON network interfaces are
already used with other missions.
 New operational flight dynamics
tools are added for ICON target
processing, and for GPS based
orbit determination and attitude
maneuver QA.
 Science operations planning and
pipeline processing software tools
are adapted from existing software.
 IT Security Plan, physical and
network controls are in place
already and are regularly audited
by the GSFC IONet Security Office.
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Instrument
Simulator
Spacecraft
Simulator
Instrument
Spacecraft
Simulator
Instrument
Spacecraft
Orbiting
Observatory
Ground
Station
TLM & CMD Network Routing
Mission Development Phases
Using Common Flight-like Interfaces
ITOS
Observatory
CMD & CTRL
TLM Source
Packet Archive
MySQL DB
Disk
Storage
Standardized interfaces at the CCSDS transfer frame layer
allow usage of operational software from the earliest stages.
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Strive for Realistic Testing
 Ground Systems & Operations
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Test-like-you-fly philosophy, follows NuSTAR model used at UCB
Box level to integrated systems level for all operations functions
Early interface and data format verification via simulators
End-to-end network data flows and pass simulations
Science data flows from instrument to bus to ground and SOC
pipeline
 I&T Support
 Portable MOC and BGS ground systems
used as EGSE throughout I&T
 UCB flight controllers participate as
console operators in all I&T phases
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MOC Supports Development, Integration & Testing
 Taking advantage of fully integrated ground system to
support spacecraft bus and instrument development
 Participating in all phases from early flight software and
hardware development to full-up observatory testing
 Applying lessons learned: get involved early
Taking the MOC to the ICON Spacecraft
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Instrument Simulators and EM Development
 EM development feeds simulator delivery
 Software emulator: ICP-CE, software based emulator for IVM
 Payload emulator: also hosting FSW, with simulated instrument data
 Hardware simulators: EM1, EM2, EM3 (hosting FSW)
Specifications
DCB
PCB
LVPS
TEC P.S.
Chassis
Harness
Engineering Model
Development
ITOS
S/C Sim.
Workstation
EGSE
ICP-EM3
DCB
P/L
Emulator
DCB
ICP-CE
Communication
Emulator
S/C I&T
at Orbital
ICP-EM2
DCB
DCB
PCB
PCB
TPS
LVPS
MIGHTI ETU
at NRL
IVM Test
at UTD
FUV FM
at CSL
*EMC Testing
FSW
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ICP-EM1
Build 1
13
Build 2
Build 3
DCB
PCB
TPS
FSW
Development
LVPS
ICP ETU
TVAC Test
Payload
Engineering
Test Bed
EUV Test
at UCB
Build 4
Build 5,6
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ITOS Configuration and Testing
 Converting legacy databases, scripts
and telemetry pages to ITOS
 ITOS supported NuSTAR & ICON flight
software development at Orbital
 ITOS will also be used for instrument
development and testing
 Key strategy is to use standard CCSDS
frames early in the development phase
with small simulators serving as
temporary stand-ins for not yet existing
flight systems and software
 Configuration management via Git
 Data flows between FlatSat and MOC operational
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Results & Lessons Learned
 Use integrated MOC software (ITOS, FrameRouter,
BTAPS) during earliest stages of I&T
 Provide simple instrument simulators and interface
modules to allow CCSDS transfer frame level interfacing to
ITOS very early on
 Steep ramp-up to get close to flight-like environment
 Don’t be afraid of developing software in-house, but know
where the limitations are of what makes sense
 Integrate configuration management for all hardware and
software solutions
 Try to have FlatSat available with interfaces to the MOC
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Summary
 Successfully applied lessons learned from previous
missions
 Naturally, project and spacecraft contractor were skeptical
about UCB proposal to deliver turn-key command and
control system with hardware and software for I&T, but
concerns were dispersed relatively quickly
 Operations team involvement beginning with ITOS
configuration 2.5 years before launch provides excellent
training in preparation for on-orbit operations
 Sizeable effort early on for operations team, but transition
to on-orbit operations are very easy and low risk
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Backup Slides
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Abstract
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The U.C. Berkeley Space Sciences Laboratory (SSL) Multi-mission
Operations Center (MOC) provides support for Caltech's NuSTAR mission
and will operate the ICON mission (scheduled for launch in 2017.)
The MOC uses the Integrated Test and Operations System (ITOS)
developed by NASA's GSFC and commercialized by The Hammers
Company.
The MOC supplied ITOS workstations and support for the NuSTAR
instrument and spacecraft development efforts. This led to very smooth
observatory integration, launch operations, and on orbit operations.
ICON is following in those footsteps with some enhancements from
lessons learned on the NuSTAR program.
This talk will provide a brief overview of the suite of operations tools and
discuss the advantages, and disadvantages, of using them for early flight
software development and for integration and test activities.
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