ESA Science & Technology - Publication Archive
This document describes the proposed model payload of MarcoPolo-R, a sample return mission to a near-Earth asteroid (NEA), which is currently under assessment as a candidate mission in ESA's Cosmic Vision 2015-2025 Plan.
- The remainder of the abstract is truncated -
Made available online 25 August 2011
To date, ozone has only been identified in the atmospheres of Earth and Mars. This study reports the first detection of ozone in the atmosphere of Venus by the SPICAV ultraviolet instrument onboard the Venus Express spacecraft. Venusian ozone is characterized by a vertically confined and horizontally variable layer residing in the thermosphere at a mean altitude of 100 km, with local concentrations of the order of 107-108 molecules cm-3. The observed ozone concentrations are consistent with values expected for a chlorine-catalyzed destruction scheme, indicating that the key chemical reactions operating in Earth's upper stratosphere may also operate on Venus.
Published online on 5 October 2011.
For decades, the source of Earth's volatiles, especially water with a deuterium-to-hydrogen ratio (D/H) of (1.558±0.001)×
Summary of the study performed at ESA's Concurrent Design Facility (CDF) into the M-class mission Large Observatory for X-ray Timing (LOFT).
Contents of the presentation:
- Study logic
Baseline design for a launch with Vega
- Main trade-offs
- System and subsystem overview
- System budgets
- Risk, cost, and programmatics
- Design assessment for a launch with Soyuz
- Payload aspects
- Open issues