Welcome to the MOXA Teampage!

 

This website is dedicated to the project Measuring Ozone and OXygen in the Atmosphere, which was part of the REXUS15/16 campaign.

The launch of our experiment from the only european rocket base in Kiruna (Sweden) was on May 14.th 2014. The REXUS rocket will reached an altitude of approximately 100 km (Kármán-Line) and allowed us to measure residual gases in the atmosphere layers between 0-100 km above the ground, the Mesosphere and the Stratosphere. The experiment will measure the partial pressures of atomic oxygen, molecular oxygen, carbon dioxide and ozone. The sensors   were developed at the University of Technology Dresden (TU Dresden) in Germany; the FIPEX sensors (atomic oxygen) were already used for measurements in the low earth orbit (LEO) on the International Space Station in 2008.  Especially atomic oxygen is a very important issue in modern space sciences as it is an aggressive corrosive.

MOXA is a precursor experiment for the Cube50 project. In this project, 50 picosattelites with a size of only 10x10x10cm³ which will be developed by students and universities all around the globe, will be launched. One of their three payloads will be FIPEX sensors. The launch of QB50 is currently scheduled for 2015.

 

For upcoming projects from the University of Technology Dresden you can follow the Students’ Research Group for Spacecraft Engineering in Dresden (STARD)

-> http://phpweb.tu-dresden.de/stard/SOMP/index.php?lang=en

For news about Rexus and Bexus follow their new website. Open calls for proposals for both projects are once or twice a year and give you the opportunity to take part! 

-> https://www.zarm.uni-bremen.de/rexusbexus.html

 

 

 

[T=10d] 24.05.2014 Preliminary post-flight results

Our experiment was in science, technology and teamwork a big success. We were able to show that the miniaturized sensors survive the rough rocket launch conditions and work properly in near vacuum.

The hatch after flight. The wire has been cut by the pyro and the hatch opened as planned.

All experiment requirements have been fulfilled!

  1. Sensors functioned well at high altitude
  2. Communication with ground station without problems, measurement data received during flight
  3. Hatch opened as planned
  4. Both pressure sensor survived and worked fine
  5. Data recovered from the two SD-cards
  6. YMIS papers in excellent condition

 

 

Weiterlesen: [T=10d] 24.05.2014 Preliminary post-flight results

[T=5d] 19.05.2014 Launch successfull!

The launch of the Rexus 16 from Kiruna on 14.05.2014 was a full success for the experiment and our team! Everybody was excited to see the rocket actually launch and monitor the live results and the livestream camera mounted to the rocket. 

You can see the full launch campaign foto album here!

 

[T=-161d] 14.11.2013 Electronic Box

PCB boxThis is our box for all the boards we need. It is easy to demount in case we have to work on the boards very fast. They regulate the power, controll heating of the sensors and handle the measured data.

It sounds simple, but it took a long time to design the PCBs (Printed Circuit Boards). After that there was a loop of testing and redesigning pass trough to come to the current design.

 

 

 

 

 

[T=-169d] 06.11.2013 Shiny Module

DLR-moduleOur experiment module, provided by the DLR, has arrived in Dresden. We are going to re-use the bulkhead from the previous TUD Rexus team, CaRu. CaRu was launched on Rexus 11 and researched the influence of milligravity on the creation of Runge pictures, which come to live through the combined effects of capillarity and a chemical precipitate reaction.

We are currently waiting for some manufacturing parts from the TU workshop and the delivery of several commercially available parts. After all necessary elements are assembled, the vibration test will be performed under Nathanael's management.

Due to the fact that some critical components are vertically arranged within the module, they are susceptible to vibrations during takeoff. It is necessary to ensure that these parts are not excited at their resonance frequency. We plan to measure the resonance frequency of this component, therefore we need to place several sensors at specific positions of our module.   

[T=-232d] 11.09.2013 Integration Progress Review (IPR)

On 11. september we had our IPR (Integration Progress Review). First the team leader Alexander Mager and Bastian Klose (responsible person of electronics) had a talk about the current status of our experiment and what we planned to do next. After the visitors Dieter Bischoff and Simon Mawn from ZARM and Alexander Schmidt from DLR-Moraba introduce themselves, we discussed the project status.

Weiterlesen: [T=-232d] 11.09.2013 Integration Progress Review (IPR)

[T=-283d] 22.07.2013 Mechanical Meeting

Finally hot Summer has arrived in Dresden. Nevertheless we want to proceed in our rocket project. Here you can see the mechanical Teammembers discussing detailed parts of our rocket module. Hatch things are clear, the electronic box and other little stuff too, but we improoved our inner measure project and so there are a lot details to discuss. Pressure sensor mounting is also still in progress but we think we have found a good solution with a local distributer: check out their website if you want to: Schwiedaem

Meeting of the mechanical Teammembers

 

[T=-290d] 15.07.2013 Beer break

After a long discussion about all things that are to do the next four weeks and technical detail discussion we enjoy a beer at the "Bierstube" in Dresden.

bierstube

 (From left to right: Nathanael, Alexander, Jonas, Susanne, Patrick)

 

[T=-301d] 04.07.2013 Team meeting

Weekly Teammeeting at the University Library,


At our first group discussion after the CDR we improved our design and Student Experiment Document (SED) with the helpful critics of the review comitee. The review comitee consistes of experts from DLR, ESA, SSA and ESRANGE that helps the students to develop the experiment.

teamtreff

We discussed a timetable and the work order for electronics and mechanical parts. In addition we introduced our new teammember Nathanael in our experiment design. Nathanael is 21 years old and studies mechanical engineering in the 4th semester. He will help the mechanical team members with the inner chamber and the electronic box.

[T=-415d] 08.02.2013 Preliminary Design Review & Training Week

We have sucessfully performed our Preliminary Design Review and had a great training week at the DLR facility in Oberpfaffenhofen!

There we had the three represants of our team, Alexander Mager (Teamleader), Patrick Geigengack (Mechanical) and Alexander Schultze (Electronics & Software) presented the current design to experts from ESA, DLR and ESRANGEchecked our design in detail, gave us very useful advise and a showed us things we can improve. 
 

(Next to the SHEFFEX sounding rocket at GSOC. F.l.t.r: Alexander Mager, Alexander Schultze, Daniel Geigengack)

[T=-428d] 21.01.2013 Preliminary Definition finished

As today, the Preliminary Definition (PD) of the experiment has been finished. Many major decisions have been made, like the position of the sensors, the latch and the development of the electronic circuitry. This design will now be evaluated in Oberpfaffenhofen at the German Aerospace Centre (DLR) by experts in the next week! 

 

The current (preliminary) experiment setup.