News

Night 10, Aurora Borealis

Since arriving here at Esrange the Stratos team has been waiting for the chance to launch the Stratos rocket, and it looks like that chance will finally come this Friday or Saturday. But there was one other thing that we also had been waiting for: the chance to see Aurora Borealis, the Northern Lights. The…
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Day 9, Squibs and tie wraps

This morning the last connectors were soldered to the Annabel capsule. The wireharness of the Annabel capsule has also been trimmed today. The hardware of the Annabel capsule is now ready to fly. There are two capsules for the Stratos rocket, Annabel en Betty. If the first capsule malfunctions then the whole capsule can be replaced…
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Possible launch opportunity Friday afternoon

The first possible launch opportunity to launch the Stratos rocket is this Friday afternoon, depending on the weather here at Esrange and the Rexus launches. The second balloon of the balloon campaign was launched yesterday evening, meaning that the balloon campaign has now finished. The Rexus 6 is set to launch on Thursday and then…
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Day 8, Farewell and even more Balloons

Today most of us skipped breakfast because of the balloon launch early in the morning. After the lunch we had to say goodbye to our teammate Christina. She had to leave for ESA Estect Noordwijk for her interview to get into the ESA traineeship program. We wish her the best of luck. Christina zet hem…
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Night 8, A long awaited balloon

Not only a daily update this time, but also a nightly update. The TWIN balloon was launched at 05:21:40 this morning. The TWIN balloon is one of two balloons taking part in a balloon launch campaign here at Esrange. Since January the launch had been rescheduled multiple times due to weather conditions, but tonight it finally lifted off. The…
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Day 7, Camera integration and Rexus test countdown

Today we integrated the camera into the rocket. This means it is attached to the rocket and all connectors are plugged in. Next step is to implement the camera software into the flight computer software so that the MCU can turn the camera on. This is almost finished. The camera can look to the outside…
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Day 6, Dogsleds and snowmobiles

Today we went dogsledding and snow scooter riding. A span of twelve dogs pulls a sled with four persons and a driver. During the sled trip you are immersed in the beautiful nature of northern Sweden. The only sounds you can hear are the breathing of the dogs and the sliding of sled. Although the…
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Day 5, Reunion and transmitters

Last night the last four members of our team arrived at Esrange. They also brought some extra tools and parts. The most important things they brought were the two transmitter boards. These are the final hardware parts which are part of the flight computer. The transmitter boards will send all the data from the Stratos…
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Day 4, Flight sequence review and balloons

Today we performed the flight sequence review. To prevent measurement errors in the electronics from setting the next flight-event prematurely (like sustainer ignition or parachute deployment), all the events have to happen during a certain time. For example the sustainer will only be ignited between 4.4 and 5.2 seconds after liftoff. During the flight sequence…
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Day 3, Closets and updates

Today we attached the last part of the tower. The guide rail is now attached to the truss and the tower is ready for the rocket. Unfortunately we still have to wait for the REXUS 6 to launch before we can begin with the preparation of the rocket motors. Another very important problem we solved…
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