Preliminary summary

The window began at the nominal start time of 0400 UT. Auroral conditions were moderately active overnight. The solar wind magnetic field was mostly southward and the solar wind speed was faster at 420-460 km/s. The winds at Andoya Rocket Range were favorable. The weather at Longyearbyen was Ny Alesund was clear with occasional low clouds. Magnetic activity was moderate during the window and Kp was 2. Launch conditions from the viewpoint of geomagnetic activity became favorable at about 0530 UT. At that time the decision to raise the payload to vertical was made and the count was advanced to T-8min. The decision to launch was taken at the auroral station at 0555 UT and after a brief pause for fishing boats CAPER was launched at 6:13:30 UT. All instruments on the payload functioned nominally and the initial data analysis indicated that the payload encountered multiple auroral arcs, regions of accelerated ions, and strong electric field activity. The CAPER apogee was 1360 km, about 20 km higher than predicted. EISCAT Svalbard operated in the field-aligned mode. EISCAT in Tromso operated the VHF radar in the split beam mode looking northward. Polar UVI and VIS data were acquired during launch. The launch decision was also aided by the ACE real time solar wind data and the NOAA Space Environment Center real time space weather data, especially GOES data.

We wish to thank all of the many dedicated and talented individuals who contributed to the CAPER project and it success. CAPER was funded by NASA and launched in collaboration with the Norwegian Space Agency, Andoya Rocket Range, UNIS, University of Oslo and our gracious Norwegian hosts. The GSFC/Wallops Flight Facility project manager was Dave Moltedo.

Paul Kintner, Professor and Associate Director of Electrical Engineering 221 Phillips Hall, Cornell University, Ithaca NY 14853 email: paul@ee.cornell.edu