AirSpex 2007

3. Preparations

In order to be well prepared for managing the instrumentation package while in the air, several tests were performed so that we could learn how to set up the instruments, and do rehearsals of our routines for the flights.


28.02.2007 Indoor test


This was the first test we did under the preparation for Airspex 2007. We mounted the equipment inside UNIS, by the reception, the instruments looking out of the windows toward the parking lot. The web camera, Fuji S2Pro SLR camera and the spectrometer was used together with the GPS and Gyro.

We manually moved the spectrometer to get a spectral movie. In some parts of the image there has been some unsteady rotation during the recording. The resulting images were analysed with the ImageCalculator software.



Figure 3.1: Above we see the test results. The top panel shows a composition of images taken in three different wavelengths. These wavelengths are 630nm, 557nm and 486nm (colour coded red, green and blue) and the separate images are shown in panel 2, 3 and 4.


26-29.03.2007 Car tests


For the second test of the system, the instruments were mounted in a car, and we rehearsed our routines for the flights. We were divided in two groups (three people in each), and we drove from Nybyen to Huset, whilst recording out of the left rear window of the car. These data were never analyzed, and later deleted. Group 2 recorded a spectral movie while the car was standing still, as well, out of the garage entrance in the Logistics Department at UNIS. This movie was provided for us to learn the ImageCalculator program.



Figure 3.2: Instrumentation setup during the test drive with the car between Nybyen and Huset.
















Figure 3.3: The view from the garage at UNIS seen in the wavelength 600nm.


10.04.2007 GPSCam Iridium test


Captured images can be sent directly from the aircraft to a recipient on the ground with an Iridium satellite phone. This system was tested on 10 April 2007, on the UNIS roof. The specific image was taken with a digital camera and transferred to the computer where it was overlaid with GPS and gyro data in the SvalviewII software. This program also compromises the image to a size of 10 20 kB to make it small enough to send within reasonable time. The setup is shown in Figure 3.4.


Once the satellite phone is connected to the computer it is processed by the software Apolio Controller. The data can be transferred either with scp, ftp or email to a server placed at the Auroral station in Adventdalen. After many tries we found that the method that worked best was by using scp, although the process of sending took several minutes and we were interrupted several times because of a broken connection. The transferred picture is shown in Figure 3.5.


Figure 3.4: The GPSCam test setup. The left image shows the GPS camera, Iridium phone and GPS connected to the laptop and on the screen the software is shown. The right image is a sketch of the same setup. [1]











Figure 3.5: Our captured image taken from the UNIS roof and sent to a computer at the Auroral station.




[1] Fred Sigernes,