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Author

  • Bernd Dachwald (13)
  • Peter Spietz (13)
  • Patric Seefeldt (11)
  • Caroline Lange (10)
  • Jan Thimo Grundmann (10)
  • Tom Spröwitz (10)
  • Christian D. Grimm (9)
  • Kaname Sasaki (9)
  • Wolfgang Seboldt (9)
  • Dominik Quantius (8)
  • Elisabet Wejmo (8)
  • Etienne Dumont (8)
  • Michael Ruffer (8)
  • Rico Jahnke (8)
  • Siebo Reershemius (8)
  • Thomas Renger (8)
  • Tra-Mi Ho (8)
  • Alessandro Peloni (7)
  • Christian Ziach (7)
  • Eugen Mikulz (7)
+ more

Year of publication

  • 2021 (1)
  • 2019 (4)
  • 2018 (3)
  • 2017 (2)
  • 2014 (3)

Document Type

  • Conference Proceeding (9)
  • Article (2)
  • Part of a Book (2)

Keywords

  • GOSSAMER-1 (2)
  • MASCOT (2)
  • DLR-ESTEC GOSSAMER roadmap for solar sailing (1)
  • PHILAE (1)
  • Small Solar System Body Lander (1)
  • Small Spacecraft (1)
  • Small spacecraft (1)
  • Solar Power Sail (1)
  • Solar sail (1)
  • multiple NEA rendezvous (1)
  • responsive space (1)
  • small solar system body characterisation (1)
  • small spacecraft (1)
  • small spacecraft asteroid lander (1)
  • small spacecraft solar sail (1)
  • solar sail (1)
  • system engineering (1)

Institute

  • Fachbereich Luft- und Raumfahrttechnik (13)
  • IfB - Institut für Bioengineering (13)

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Gossamer roadmap technology reference study for a multiple NEO Rendezvous Mission (2014)
Bernd Dachwald ; Herrmann Boehnhardt ; Ulrich Broj ; Ulrich R. M. E. Geppert ; Jan-Thimo Grundmann ; Wolfgang Seboldt ; Patric Seefeldt ; Peter Spietz ; Les Johnson ; Ekkehard Kührt ; Stefano Mottola ; Malcolm Macdonald ; Colin R. McInnes ; Massimiliano Vasile ; Ruedeger Reinhard
Gossamer roadmap technology reference study for a Sub-L1 Space Weather Mission (2014)
Colin R. McInnes ; Volker Bothmer ; Bernd Dachwald ; Ulrich R. M. E. Geppert ; Jeannette Heiligers ; Alan Hilgers ; Les Johnson ; Malcolm Macdonald ; Ruedeger Reinhard ; Wolfgang Seboldt ; Peter Spietz
Gossamer roadmap technology reference study for a solar polar mission (2014)
Malcolm Macdonald ; C. McGrath ; T. Appourchaux ; Bernd Dachwald ; W. Finsterle ; L. Gizon ; P. C. Liewer ; Colin R. McInnes ; G. Mengali ; W. Seboldt ; T. Sekii ; S. K. Solanki ; M. Velli ; R. F. Wimmer-Schweingruber ; Peter Spietz ; Ruedeger Reinhard
Small spacecraft in small solar system body applications (2017)
Jan Thimo Grundmann ; Jan-Gerd Meß ; Jens Biele ; Patric Seefeldt ; Bernd Dachwald ; Peter Spietz ; Christian D. Grimm ; Tom Spröwitz ; Caroline Lange ; Stephan Ulamec
Small Spacecraft Solar Sailing for Small Solar System Body Multiple Rendezvous and Landing (2018)
Jan Thimo Grundmann ; Waldemar Bauer ; Kai Borchers ; Etienne Dumont ; Christian D. Grimm ; Tra-Mi Ho ; Rico Jahnke ; Caroline Lange ; Volker Maiwald ; Eugen Mikulz ; Dominik Quantius ; Siebo Reershemius ; Thomas Renger ; Johannes Riemann ; Kaname Sasaki ; Patric Seefeldt ; Peter Spietz ; Tom Spröwitz ; Norbert Toth ; Elisabet Wejmo ; Jens Biele ; Christian Krause ; Matteo Cerotti ; Alessandro Peloni ; Bernd Dachwald
Solar sails for planetary defense & high-energy missions (2019)
Jan Thimo Grundmann ; Wlademar Bauer ; Kai Borchers ; Etienne Dumont ; Christian D. Grimm ; Tra-Mi Ho ; Rico Jahnke ; Aaron D. Koch ; Caroline Lange ; Volker Maiwald ; Jan-Gerd Meß ; Eugen Mikulz ; Dominik Quantius ; Siebo Reershemius ; Thomas Renger ; Kaname Sasaki ; Patric Seefeldt ; Peter Spietz ; Tom Spröwitz ; Maciej Sznajder ; Norbert Toth ; Matteo Ceriotti ; Colin McInnes ; Alessandro Peloni ; Jens Biele ; Christian Krause ; Bernd Dachwald ; David Hercik ; Roy Lichtenheldt ; Friederike Wolff ; Alexander Koncz ; Ivanka Pelivan ; Nicole Schmitz ; Ralf Boden ; Johannes Riemann ; Wolfgang Seboldt ; Elisabet Wejmo ; Christian Ziach ; Tobias Mikschl ; Sergio Montenegro ; Michael Ruffer ; Federico Cordero ; Simon Tardivel
20 years after the successful ground deployment test of a (20 m) 2 solar sail at DLR Cologne, and in the light of the upcoming U.S. NEAscout mission, we provide an overview of the progress made since in our mission and hardware design studies as well as the hardware built in the course of our solar sail technology development. We outline the most likely and most efficient routes to develop solar sails for useful missions in science and applications, based on our developed `now-term' and near-term hardware as well as the many practical and managerial lessons learned from the DLR-ESTEC Gossamer Roadmap. Mission types directly applicable to planetary defense include single and Multiple NEA Rendezvous ((M)NR) for precursor, monitoring and follow-up scenarios as well as sail-propelled head-on retrograde kinetic impactors (RKI) for mitigation. Other mission types such as the Displaced L1 (DL1) space weather advance warning and monitoring or Solar Polar Orbiter (SPO) types demonstrate the capability of near-term solar sails to achieve asteroid rendezvous in any kind of orbit, from Earth-coorbital to extremely inclined and even retrograde orbits. Some of these mission types such as SPO, (M)NR and RKI include separable payloads. For one-way access to the asteroid surface, nanolanders like MASCOT are an ideal match for solar sails in micro-spacecraft format, i.e. in launch configurations compatible with ESPA and ASAP secondary payload platforms. Larger landers similar to the JAXA-DLR study of a Jupiter Trojan asteroid lander for the OKEANOS mission can shuttle from the sail to the asteroids visited and enable multiple NEA sample-return missions. The high impact velocities and re-try capability achieved by the RKI mission type on a final orbit identical to the target asteroid's but retrograde to its motion enables small spacecraft size impactors to carry sufficient kinetic energy for deflection.
Paths not taken – The Gossamer roadmap’s other options (2021)
Peter Spietz ; Tom Spröwitz ; Patric Seefeldt ; Jan Thimo Grundmann ; Rico Jahnke ; Tobias Mikschl ; Eugen Mikulz ; Sergio Montenegro ; Siebo Reershemius ; Thomas Renger ; Michael Ruffer ; Kaname Sasaki ; Maciej Sznajder ; Norbert Tóth ; Matteo Ceriotti ; Bernd Dachwald ; Malcolm Macdonald ; Colin McInnes ; Wolfgang Seboldt ; Dominik Quantius ; Waldemar Bauer ; Carsten Wiedemann ; Christian D. Grimm ; David Hercik ; Tra-Mi Ho ; Caroline Lange ; Nicole Schmitz
Flights are ten a sail – Re-use and commonality in the design and system engineering of small spacecraft solar sail missions with modular hardware for responsive and adaptive exploration (2019)
Jan Thimo Grundmann ; Waldemar Bauer ; Ralf Boden ; Matteo Ceriotti ; Suditi Chand ; Federico Cordero ; Bernd Dachwald ; Etienne Dumont ; Christian D. Grimm ; Jeannette Heiligers ; David Herčík ; Alain Hérique ; Tra-Mi Ho ; Rico Jahnke ; Wlodek Kofman ; Caroline Lange ; Roy Lichtenheldt ; Colin McInnes ; Jan-Gerd Meß ; Tobias Mikschl ; Eugen Mikulz ; Sergio Montenegro ; Iain Moore ; Ivanka Pelivan ; Alessandro Peloni ; Dirk Plettemeier ; Dominik Quantius ; Siebo Reershemius ; Thomas Renger ; Johannes Riemann ; Yves Rogez ; Michael Ruffer ; Kaname Sasaki ; Nicole Schmitz ; Wolfgang Seboldt ; Patric Seefeldt ; Peter Spietz ; Tom Spröwitz ; Maciej Sznajder ; Norbert Tóth ; Merel Vergaaij ; Giulia Viavattene ; Elisabet Wejmo ; Carsten Wiedemann ; Friederike Wolff ; Christian Ziach
Responsive integrated small spacecraft solar sail and payload design concepts and missions (2019)
Jan Thimo Grundmann ; Waldemar Bauer ; Ralf Christian Boden ; Matteo Ceriotti ; Federico Cordero ; Bernd Dachwald ; Etienne Dumont ; Christian D. Grimm ; D. Hercik ; A. Herique ; Tra-Mi Ho ; Rico Jahnke ; Wlodek Kofman ; Caroline Lange ; Roy Lichtenheldt ; Colin R. McInnes ; Tobias Mikschl ; Eugen Mikulz ; Sergio Montenegro ; Iain Moore ; Ivanka Pelivan ; Alessandro Peloni ; Dirk Plettemeier ; Dominik Quantius ; Siebo Reershemius ; Thomas Renger ; Johannes Riemann ; Yves Rogez ; Michael Ruffer ; Kaname Sasaki ; Nicole Schmitz ; Wolfgang Seboldt ; Patric Seefeldt ; Peter Spietz ; Tom Spröwitz ; Maciej Sznajder ; Norbert Toth ; Giulia Viavattene ; Elisabet Wejmo ; Friederike Wolff ; Christian Ziach
Asteroid mining has the potential to greatly reduce the cost of in-space manufacturing, production of propellant for space transportation and consumables for crewed spacecraft, compared to launching the required resources from Earth’s deep gravity well. This paper discusses the top-level mission architecture and trajectory design for these resource-return missions, comparing high-thrust trajectories with continuous low-thrust solar-sail trajectories. This work focuses on maximizing the economic Net Present Value, which takes the time-cost of finance into account and therefore balances the returned resource mass and mission duration. The different propulsion methods will then be compared in terms of maximum economic return, sets of attainable target asteroids, and mission flexibility. This paper provides one more step towards making commercial asteroid mining an economically viable reality by integrating trajectory design, propulsion technology and economic modelling.
Small spacecraft based multiple near-earth asteroid rendezvous and landing with near-term solar sails and ‘Now-Term ‘technologies (2018)
Jan Thimo Grundmann ; Waldemar Bauer ; Jens Biele ; Ralf Boden ; Matteo Ceriotti ; Federico Cordero ; Bernd Dachwald ; Etienne Dumont ; Christian D. Grimm ; David Herčík ; Tra-Mi Ho ; Rico Jahnke ; Aaron D Koch ; Alexander Koncz ; Christian Krause ; Caroline Lange ; Roy Lichtenheldt ; Volker Maiwald ; Tobias Mikschl ; Eugen Mikulz ; Sergio Montenegro ; Ivanka Pelivan ; Alessandro Peloni ; Dominik Quantius ; Siebo Reershemius ; Thomas Renger ; Johannes Riemann ; Michael Ruffer ; Kaname Sasaki ; Nicole Schmitz ; Wolfgang Seboldt ; Patric Seefeldt ; Peter Spietz ; Tom Spröwitz ; Maciej Sznajder ; Simon Tardivel ; Norbert Tóth ; Elisabet Wejmo ; Friederike Wolff ; Christian Ziach
Physical interaction with small solar system bodies (SSSB) is the next step in planetary science, planetary in-situ resource utilization (ISRU), and planetary defense (PD). It requires a broader understanding of the surface properties of the target objects, with particular interest focused on those near Earth. Knowledge of composition, multi-scale surface structure, thermal response, and interior structure is required to design, validate and operate missions addressing these three fields. The current level of understanding is occasionally simplified into the phrase, ”If you’ve seen one asteroid, you’ve seen one asteroid”, meaning that the in-situ characterization of SSSBs has yet to cross the threshold towards a robust and stable scheme of classification. This would enable generic features in spacecraft design, particularly for ISRU and science missions. Currently, it is necessary to characterize any potential target object sufficiently by a dedicated pre-cursor mission to design the mission which then interacts with the object in a complex fashion. To open up strategic approaches, much broader in-depth characterization of potential target objects would be highly desirable. In SSSB science missions, MASCOT-like nano-landers and instrument carriers which integrate at the instrument level to their mothership have met interest. By its size, MASCOT is compatible with small interplanetary missions. The DLR-ESTEC Gossamer Roadmap Science Working Groups‘ studies identified Multiple Near-Earth asteroid (NEA) Rendezvous (MNR) as one of the space science missions only feasible with solar sail propulsion. The Solar Polar Orbiter (SPO) study showed the ability to access any inclination, theDisplaced-L1 (DL1) mission operates close to Earth, where objects of interest to PD and for ISRU reside. Other studies outline the unique capability of solar sails to provide access to all SSSB, at least within the orbit of Jupiter, and significant progress has been made to explore the performance envelope of near-term solar sails for MNR. However, it is difficult for sailcraft to interact physically with a SSSB. We expand and extend the philosophy of the recently qualified DLR Gossamer solar sail deployment technology using efficient multiple sub-spacecraft integration to also include landers for one-way in-situ investigations and sample-return missions by synergetic integration and operation of sail and lander. The MASCOT design concept and its characteristic features have created an ideal counterpart for thisand has already been adapted to the needs of the AIM spacecraft, former part of the NASA-ESA AIDA missionDesigning the 69th International Astronautical Congress (IAC), Bremen, Germany, 1-5 October 2018. IAC-18-F1.2.3 Page 2 of 17 combined spacecraft for piggy-back launch accommodation enables low-cost massively parallel access to the NEA population.
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