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The Touch And Go Camera System (TAGCAMS) is a three-camera-head instrument onboard NASA’s OSIRIS-REx asteroid sample return mission spacecraft. The purpose of TAGCAMS is to facilitate navigation to the target asteroid, (101955) Bennu; confirm acquisition of the asteroid sample; document asteroid sample stowage; and provide supplementary imaging for OSIRIS-REx science investigations. During the almost two-year OSIRIS-REx outbound cruise phase we pursued nine TAGCAMS imaging campaigns to check, calibrate and characterize the camera system’s performance before asteroid arrival and proximity operations began in late 2018. The TAGCAMS in-flight calibration dataset provides the relevant information to enable the three cameras to complete their primary observation goals during asteroid operations. The key performance parameters that we investigated in flight included: linearity, responsivity (both point source and extended body), dark current, hot pixels, pointing, image geometry transformation, image quality and stray light. Analyses of the in-flight performance either confirmed the continued applicability of the TAGCAMS ground test results or substantially improved upon the ground test knowledge. In addition, the TAGCAMS calibration observations identified the source of a spacecraft outgassing feature that guided successful remediation efforts prior to asteroid arrival.

Статья посвящена исследованию прямых иностранных инвестиций в инновационные нанотехнологии на примере стран Европейского Союза. Проведенный анализ объемов и направлений инвестиций показал, что страны Союза рассматривают инвестиции в нанотехнологии как иструмент ускорения экономического развития., The paper studies present state of direct investment in technological innovations in the European Union. The EU member states are found to demonstrate different economically motivated preferences as to investment in nanotechnology. The EU investment strategies are assessed from the viewpoint of challenges facing developing and transition economies.