ESA’s Debris Risk Assessment and Mitigation Analysis (DRAMA) is a suite of software tools developed by the European Space Agency to assess space debris risks and support spacecraft design and mission planning. It evaluates debris mitigation compliance, orbital lifetime, re-entry casualty risk, collision risk, and debris-related environmental impacts throughout a mission’s lifecycle.
It includes specialised modules for collision avoidance, impact damage assessment, disposal planning and re-entry safety, helping engineers identify risks and verify mitigation strategies
- ID Number
- 1
- Entity Name
- European Space Agency
- Country
- Germany
- Type of Organisation
- Space Agency
- Type of Entry
- Tool
- Technology Readiness Level (TRL)
- 9
- Contact details
- Last checked
- Link to webpage
- https://sdup.esoc.esa.int/ (opens in a new tab)
Abstract
Description
The aim of the DRAMA tool suite is to enable space programs to assess their compliance with space debris mitigation requirements, such as ESA's Zero Debris requirements (ESSB-ST-U-007). This suite accompanies ESA's Space Debris Mitigation Guidelines Handbook, which provides the necessary support and processes for the verification of these requirements. The DRAMA tool suite supports this aim by providing a software model that enables an assessment of mitigation strategies for the operational and disposal phases of a mission, including the debris risk posed to the mission and the effectiveness of an end-of-life strategy.
Each of the software tools has been designed to provide a fast, well-founded assessment of a user-defined mission and provides a response to international requirements related to space debris.
The different tools and features include:
ARES – Assessment of Risk Event Statistics: To consider the possible requirements for collision avoidance manoeuvres during a mission.
MIDAS – MASTER (-based) Impact Flux and Damage Assessment Software: To model the collision flux and damage statistics for a mission.
CROC – Cross Section of Complex Bodies: To compute the cross-section of a self-designed complex body.
OSCAR – Orbital SpaceCraft Active Removal: To compute the orbital lifetime and assess post-mission disposal strategies.
SARA – Re-entry Survival and Risk Analysis: Combines two tools for the re-entry (SESAM) and risk (SERAM) analysis.
SESAM – Spacecraft Entry Survival Analysis Module: To model the re-entry of a space system into the Earth's atmosphere.
SERAM – Spacecraft Entry Risk Analysis Module: To assess the risk on-ground of objects surviving re-entry.
MASTER – Meteoroid and Space Debris Terrestrial Environment Reference: Starting with DRAMA 4, this formerly standalone tool has been integrated into a common interface. More details, including the needed population files, can be found on the dedicated MASTER page (https://sdup.esoc.esa.int/master/).
Coefficient Estimator: To determine for a given spacecraft model the drag and solar radiation pressure coefficients, as well as the (radar) cross-section.
Assessment workflows:
Trackability assessment: To analyse for given spacecraft model how well it might get tracked by a defined observation network. Or for a list of debris objects how many can potentially be detected.
Brightness assessment: To analyse for a set of observation locations the apparent brightness of a given spacecraft model.
Technical classification
- Technical Domains
-
- TD2 GUARANTEE TIMELY AND SUCCESSFUL CLEARANCE
- TD3 PREVENT DEBRIS GENERATION THROUGH BREAK-UPS OR COLLISIONS
- TD5 PREVENT CASUALTIES ON GROUND
- TD6 UNDERSTAND AND MITIGATE ADVERSE CONSEQUENCES OF SPACE OBJECTS AND DEBRIS
- Needs
-
- 2.1 IMPROVE ORBITAL CLEARANCE WITH HIGH PROBABILITY OF SUCCESSFUL DE-ORBITING
- 3.1 IMPROVE COLLISION RISK ASSESSMENT
- 3.2 STANDARDISED EVALUATION OF IMPLIED AND ENCOUNTERED RISKS
- 3.4 MINIMISE RISKS LINKED TO UNTRACKABLE OBJECTS BY DESIGN
- 5.1 REDUCE RISKS LINKED TO UNCONTROLLED RE-ENTRY
- 6.2 PROTECT DARK AND QUIET SKIES
- Solutions
-
- 2.1.C Verification methods for timely and successful clearance
- 3.1.A A standardised methodology for assessing collision probability during the design phase, which involves formalising input conditions for analysis, such as space objects population models, spacecraft properties and characteristics, as well as how uncertainties are handled
- 3.2.A Development of standardised, internationally recognised methods for assessing the likelihood and severity of debris generation events, to enable consistent and reliable risk evaluation across space missions, ensuring that the impacts of debris are accurately analysed and managed
- 3.4.A Development of improved statistical models for the evolution and behaviour of Untrackable Debris and the long-term evolution of the space environment
- 5.1.C Improved and standardised tools, models and databases to assess Demise and casualty risk from re-entering objects
- 6.2.A Prediction and mitigation of the unintended emission from space objects and debris to protect the integrity of astronomical observations
Evidence for TRL
DRAMA is fully operational software, maintained and regularly updated.