TechEdSat  -­‐  An  Educa/onal  1U  CubeSat  Architecture  Using  Plug-­‐

and-­‐Play  Avionics    

https://ntrs.nasa.gov/search.jsp?R=20150019651 2018-06-20T07:41:32+00:00Z

Outline  

•  Introduc*on  •  Background  •  The  team  •  About  NASA  Ames  •  About  AAC  Microtec  •  Mission  objec*ves  •  Mission  results  •  Future  

Background  

TechEdSat  is  a  1U  cubesat  developed  in  a  joint  project  between:  

 -­‐  NASA  Ames  Research  Center  

•  Responsible  for  Integra*on  and  Launch  Prepara*on  

   

-­‐  ÅAC  Microtec  •  Avionics,  Data  Handling  System,  Applica*on  SoOware  

   -­‐      San  Jose  State  University  

•  Students  involved  in  satellite  design  from  A  to  Z  

The  team  

The  team  at  work  

About  NASA  Ames  

•  Located  in  California’s  Silicon  Valley  •  Established  1939  •  ~2,500  staff  •  Research  and  engineering  in  diverse  

areas:  -­‐  Small  spacecraO  -­‐  Low-­‐cost  missions  -­‐  Entry  systems  -­‐  Supercompu*ng  -­‐  NextGen  air  transporta*on  -­‐  Airborne  science  -­‐  Biology  and  astrobiology  -­‐  Exoplanets  -­‐  Autonomy  and  robo*cs  -­‐  Lunar  science  -­‐  Human  systems  integra*on  -­‐  Wind  tunnels  

•  Emphasis  on  partnerships  and  collabora*ons  with  universi*es,  industry,  other  agencies  

About  ÅAC  Microtec  

ÅAC Microtec develops and supplies satellites, sub-systems, and components to the small satellite market

Spin-off company from Uppsala University, The Ångström Laboratory, Sweden in 2005 Locations •  Head Quarters: Uppsala Science Park, Sweden

•  AAC Microtec North America Inc., NASA Ames CA

•  Partners: HTL (JP), Soletop (Kr)

~30 Employees

4M€ Revenue, 2014

From  a  pile  of  small  parts…  

To  a  complete  spacecraO  design…  

•  Build  a  1U  cubesat  within  6  months  from  kickoff  to  launch  •  Demonstrate  and  evaluate  the  Space  Plug-­‐and-­‐Play  avionics  hardware  and  soOware  

from  ÅAC  Microtec.  •  Inves*gate  both  Iridium  and  Orbcomm  intersatellite  communica*on  as  a  method  of  

elimina*ng  the  requirement  for  a  physical  ground  sta*on  in  Nano  satellite  missions.  •  Demonstrate  the  capabili*es  of  the  JAXA  J-­‐SSOD  aboard  the  ISS,  and  be  one  of  the  

first  cubesats  to  be  deployed  from  the  ISS.  

Mission  Objec/ves  

-­‐10  

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10  

20  

30  

40  

50  

0   10   20   30   40   50   60   70   80   90   100   110   120   130   140   150   160  

Tempe

rature  [C

en*g

rade

]  

Time  [Days]  

TechEdSat  Temperature  Distribu*on  vs  Days    

Temp  Min   Temp  Max   Temp  Avg   Temp  Now   Poly.  (Temp  Avg)   Poly.  (Temp  Now)  

8.3  

8.32  

8.34  

8.36  

8.38  

8.4  

8.42  

8.44  

0   10   20   30   40   50   60   70   80   90   100   110   120   130   140   150   160  

Volta

ge  

Time  [Days]  

TechEdSat  Voltage  Distribu*on  vs  Days    

Vbus  Max   Vbus  Min  

Mission  Results  

•  Fault-­‐tolerant  func*onality  (EDAC  on  RAM,  TMR,  etc)  has  been  demonstrated  

•  One  single  event  latchup  on  the  RAM  was  detected  and  automa*cally  corrected  

•  Rapid  Integra*on  Architecture  has  been  demonstrated  

•  Feasibility  of  inter-­‐satellite  communica*on  as  possible  downlink  for  cubesats  has  been  demonstrated  from  ground  due  to  regulatory  issue  

–  Demonstrated  from  orbit  on  subsequent  missions  

Future  Opportuni/es  

•  We  fully  expect  the  design  philosophy  pioneered  by  TechEdSat  to  con*nue,  resul*ng  in:  –  High  performance,  low  cost  missions  –  Rapid  spacecraO  development  and  integra*on  

•  NASA  Ames  and  AAC  Microtec  are  assessing  mission  concepts  that  demand  robust  high  performance:  –  Deep  space  science  and  explora*on  missions,  e.g.  to  Europa  –  Long-­‐dura*on  Earth-­‐orbi*ng  satellites  

Ques/ons?