Aeronomy of Ice in the Mesosphere
|AIM (Explorer 90)|
|Begin:||April 25, 2007, 20:26 UTC|
|Starting place:||Point Arguello|
|Status:||in orbit, in operation|
|Rotation time :||96.3 min|
|Orbit inclination :||97.8 °|
|Apogee height :||594 km|
|Perigee height :||579 km|
A eronomy of I ce in the M esosphere (AIM) is a NASA satellite for observing the glowing night clouds . The research focuses on the formation and change of these highest clouds. AIM was launched on April 25, 2007 at 20:26 UTC with a Pegasus-XL and is orbiting the earth in a polar orbit . After launch, the satellite was given the additional name Explorer 90 . Operation was originally planned to run until June 2009, but has been extended several times, most recently to September 2023 .
AIM is managed by NASA's Goddard Space Flight Center and funded by the SMEX (SMall EXplorers) program. The direction of the AIM mission has been given to Hampton University in Virginia . Their Center for Atmospheric Sciences, together with other US universities, is responsible for the satellite's experiments.
There are three experiments on board:
The C loud I maging and P article S ize experiment is a complex camera system that is supposed to photograph the clouds. The instrument was built by the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado and has four cameras. Panoramic images of 120 ° by 80 ° can be made. In addition, the contrast of the photos is enhanced by a filter for ultraviolet light.
The S olar O ccultation f or I ce E xperiment has various sensors. This is how the temperature of the clouds should be measured. SOFIE aims to research the nature of clouds. This includes determining the amount of frozen water vapor. In addition, SOFIE can define gases, which should explain the chemistry of these clouds. The system was built by Utah State University .
The C osmic D ust E xperiment was built like the CIPS device from LASP and is intended as Stardust , small meteorite particles absorb that have entered the Earth's atmosphere. This is important because it is believed that this dust is important for the formation or change in the high clouds. CDE is mounted on the satellite so that it is pointing away from the earth.
- data according to AIM. n2yo, August 12, 2012, accessed August 13, 2012 .
- NASA's AIM Mission Soars to the Edge of Space . NASA, April 25, 2007 (English)
- ESA: AIM (Aeronomy of Ice in the Mesosphere). Retrieved on May 11, 2018 : "January 30, 2018: After more then 10 years on orbit, the AIM mission is fully operational with planned operations going through September 2023"
- The instruments (English)