Peter Rathsman CTO, OHB Sweden AB - LTU
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SATELLITE SYSTEMS NRFP within our R&D activities Nov 28, 2014 Peter Rathsman CTO, OHB Sweden AB
Transcript of Peter Rathsman CTO, OHB Sweden AB - LTU
SATELLITE SYSTEMS
NRFP within our R&D activitiesNov 28, 2014
Peter Rathsman
CTO, OHB Sweden AB
Page 2OHB SWEDEN AB
OHB Sweden - Company Context
OHB SWEDEN AB / Propulsion Presentation 4.0
Swedish Space Corporation
Aer
osp
ace
& In
du
stri
al
Pro
du
cts
Sp
ace
Sys
tem
s
OHB System AGBremen, Germany
OHB CGS S.p.AMilan, Italy
Kayser Threde GmbhMunich, Germany
Antwerp Space N.VAntwerp, Belgium
Luxspace SárlBetzdorf, Luxembourg
MT AerospaceAugsburg, Germany
Aerotech PeissenbergPeissenberg, Germany
OHB Teledata GmbhBremen, Germany
Megatel GmbhBremen, Germany
100%
100%
100%
100%
100%
70%
70%
100%
74.9%
100%
July 2011
SPACE SYSTEMS
• Prime Contractor and System Integrator of small satellites
up to 400 kg
Core Competences:
Mission Architecture and Analysis
Spacecraft System Engineering and Integration
AOCS
Propulsion
Check-Out and Ground Control Systems
• AOCS and Propulsion Subsystem supplier to larger satellites
• Currently 67 employees, mainly M.Sc. and with an average of 12
years experience working with space systems
OHB Sweden – Core business areas
Page 3OHB SWEDEN AB
Heritage and achievements
Page 4OHB SWEDEN AB
FORMATION-FLYING
Demonstration of
Formation-Flying &
Rendezvous using GPS,
Vision-Based, and RF-
navigation
Still in operations. PRISMA (2010)
GEOSTATIONARY
Small GEO Product
Line with Electric
Propulsion for
station-keeping and
orbit transfer
Small GEO (on-going)
EARLY
SATELLITES
Spin stabilized
attitude control
Freja (1992) Astrid 1 (1995) Astrid 2 (1998)Viking (1986)
HIGH-PRECISION
Precise 3-axis
attitude control for
astronomy and
Earth observation
Still operated by
OHB Sweden. Odin (2001)
INTERPLANETARY
First ESA Lunar
mission.
Weak-thrust transfer
to lunar orbit
SMART-1 (2003)
ESA mission to
study the Sun.
Complex series
of gravitational-
assist fly-bysSolar Orbiter (on-going)
OHB Sweden Design Capabilities
Page 5OHB SWEDEN AB
OHB Sweden – Company Overview
NRFP-2
project:
Vision-
Based
Navigation
NRFP-2
project:
GPS in
GTO
NRFP-2
project:
HPEP /
ADN
research
NRFP-2
project: EP
disturbances
on GNSS
OHB Sweden Production Capabilities
Page 6OHB SWEDEN AB
OHB Sweden – Company Overview
NRFP-2
project:
Digital X-
ray
NRFP-2 Project
Project: Digital X-ray
Academic partner: Acreo
Page 7OHB SWEDEN AB Commercial in confidence
Excellent results from NRFP-2 project
Use of digital X-ray has been qualified and implemented in our
production process
NRFP-2 Project
Project: High Performance Electric Propulsion ADN research
Academic partner: KTH Chemistry
Page 8OHB SWEDEN AB Commercial in confidence
Status: Theoretical results and early
injector tests look very proimising.
Thruster performance tests to be
performed in OHB-Swedens vacuum
chamber Jan/Feb 2015
NRFP-2 Project
Use of GPS in GTO and GEO
Academic partner: KTH – Automatic control
Page 9OHB SWEDEN AB Commercial in confidence
Status: Use of GPS in GEO and GTO has been
confirmed. The project has generated a software
simulator which is extensively used in on-going
telecom projects at OHB Sweden.
NRFP-2 Project
Impact on GNSS Receivers from Hall Thruster Engines
Academic partner: LTH – Rymdteknik
Page 10OHB SWEDEN AB Commercial in confidence
Status: Study has confirmed feasibility of using GNSS during EP firing.
Specific test campaign will be performed in RUAG-A end 2014.
NRFP-2 Project
Vacuum compatibility of Piezo-electric actuators
Academic partner: Uppsala Universitet / Piezomotor AB
Page 11OHB SWEDEN AB Commercial in confidence
Status: Two rounds of testing
have been performed at Uppsala
University. Good performance has
been reached in High Vacuum, but
not yet in Ulta-High Vacuum.
NRFP-2 Project
Vison-based navigation for rendezvous with non-cooperative targets
Academic partner: KTH – Automatic control
Page 12OHB SWEDEN AB Commercial in confidence
Status: Study has provided algorithms which so far have been tested on
PRISMA test bench. Actual rendezvous attempt with PRISMA not possible.
The PRISMA Satellites
Mango• 3-axis stabilized
• Attitude Independent Orbit Control
• 145 kg launch mass
• FFRF, GPS, VBS, DVS, Inter-satellite link
• 3 propulsion systems, >200 m/s Delta-V
Tango• 3-axis stabilized
• Solar Magnetic control
• 40 kg launch mass
• FFRF, GPS, Inter-satellite link
OHB SWEDEN AB Page 13
One of the many PRISMA experiments
Page 14OHB SWEDEN AB
PRISMA Rendezvous Reconstruction and Video from Orbit
© OHB Sweden
Page 14
OHB Sweden’s NRFP-2 projects 2011-2014:
1. Digital X-raying of orbital welds
2. HPEP – ADN research: Modelling & test of ADN combustion to support HPEP
3. Use of On-Board GPS for GTO and GEO
4. Impact on GNSS Receivers from Hall Thruster Engines
5. Vision Based Navigation for Rendezvous with Non-Cooperative Targets
6. Vacuum compatibility of Piezo Actuator
Page 15OHB SWEDEN AB
Summary of NRFP-2 for OHB Sweden
The NRFP-2 projects have substantially contributed to OHB Sweden’s
R&D activities.
Same ”type” of projects are envisaged for NRFP-3 (2015-2018)
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Thank you!
OHB SWEDEN
AB
Commercial in
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