Exploració per autor "Roberts, Peter C.E"

Ara es mostren els items 21-26 de 26

    • SOAR - Satellite for Orbital Aerodynamics Research 

      Crisp, Nicholas H.; Roberts, Peter C.E; Edmonson, Steve; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (International Astronautical Federation, 2018)
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      Accés restringit per política de l'editorial
      SOAR (Satellite for Orbital Aerodynamics Research) is a CubeSat mission designed to investigate the interaction betweendifferent materials and the atmospheric flow regime in Very Low Earth Orbits (VLEO) and to demonstrate ...

    • Strategic similarities between earth observation small satellite constellations in very low earth orbit and low-cost carriers by means of strategy canvas 

      Rodríguez Donaire, Silvia; García-Almiñana, Daniel; García Berenguer, Marina; Roberts, Peter C.E; Crisp, Nicholas H.; HERDRICH, GEORG; KATARIA, DHIREN; HANESSIAN, VIRGINIA; Becedas, Jonathan; SEMINARI, SIMON (2022-10)
      Article
      Accés obert
      The space industry is growing and space data are becoming accessible to businesses that were previously unthinkable. Constellations of small satellites in Very Low Earth Orbit (VLEO) have created a gap that is allowing ...

    • System analysis and test-bed for an atmosphere-breathing electric propulsion system using an inductive plasma thruster 

      Romano, Francesco; Binder, Tilman; Herdrichd, Georg H.; Roberts, Peter C.E; Rodríguez Donaire, Silvia; García-Almiñana, Daniel (2017)
      Text en actes de congrés
      Accés obert
      Challenging space mission scenarios include those in very low Earth orbits, where the atmosphere creates significant drag to the S/C and forces their orbit to an early decay. For drag compensation, propulsion systems are ...

    • System modelling of very low Earth orbit satellites for Earth observation 

      Crisp, Nicholas H.; Roberts, Peter C.E; Romano, Francesco; García-Almiñana, Daniel (2021-10)
      Article
      Accés obert
      The operation of satellites in very low Earth orbit (VLEO) has been linked to a variety of benefits to both the spacecraft platform and mission design. Critically, for Earth observation (EO) missions a reduction in altitude ...

    • The benefits of very low earth orbit for earth observation missions 

      Crisp, Nicholas H.; Roberts, Peter C.E; Livadiotti, Sabrina; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (2020-08)
      Article
      Accés obert
      Very low Earth orbits (VLEO), typically classified as orbits below approximately 450 km in altitude, have the potential to provide significant benefits to spacecraft over those that operate in higher altitude orbits. This ...

    • Very low Earth orbit constellations for Earth observation 

      Crisp, Nicholas H.; McGrath, Ciara N.; Roberts, Peter C.E; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (International Astronautical Federation, 2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Very Low Earth Orbits (VLEOs), those below 450 km, present a number of benefits and challenges for the development and operation of Earth observation spacecraft at both the system and mission level. This paper examines the ...