Space Seminars are back
Feel free to check the schedule for the next seminars at Skoltech Space Center.
Be aware, that now seminars are online, write a request to space@skoltech.ru for a password.

Special event: Space Seminar

Upcoming
Some new seminars schedule is going to be available soon!
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Past
May 28 Ann-Marlen Ruede: How Space Architecture Can Contribute to Mission Design
Ann-Marlen Ruede - EPFL
Since the beginning of time, humans have dreamt of exploring the stars and planets. Space architecture can help build the infrastructures, which enable this endeavor. But how exactly? In this seminar, the design of a crewed mission to drill for and analyze ice at the Martian North Pole will be presented. Special attention will be given to the methods used for selecting architectural features. Among the conclusions of the work, we find that a habitat and mission’s architecture is not only dependent on, but also supports strategies for sourcing, transforming and using resources. Furthermore, over long missions, designing circular economy approximating solutions are more mass efficient and can therefore have a positive impact on long-term logistics. Considering this, architecture can be seen as an opportunity to participate in optimizing a mission and increase its sustainability. This could not only be of benefit for any type of large space structure, but technologies and strategies developed for space could potentially also be used in sustainable Earth applications. Overlapping principles and synergetic opportunities will be discussed.
May 21 Nick Mullin: Design and verification of a thermal model for the CubeSat with 3d-printed heat sink
Nick Mullin - Skoltech
This talk is about Skoltech space team contribution into Bauman University “Yareelo” project - two satellites to be launched this year. We provided a heat sink for the payload, spectrophotometer with 2W heat dissipation. The heat sink is made of aluminum alloy and manufactured by 3d-printing. Heat pipes are designed and embedded to enhance thermal transfer properties. To carry out thermal analysis we developed a thermal model, which takes into account the 3D-printed part. Thermal model was fine-tuned and verified through a series of vacuum chamber tests in Skoltech Small Sat Lab.
May 14 Anton Afanasev: Attitude Control Algorithms in a Swarm of CubeSats: Kriging Interpolation and Coordinated Data Exchange
Anton Afanasev - Skoltech
This study is a part of the Skoltech University project to deploy a swarm of four identical 3U CubeSats with gamma-ray sensors and their collective behavior will be exhibited in detecting gamma-ray bursts and coordinated attitude control. We consider a fully magnetic attitude control system, comprising a magnetometer as a part of attitude determination routine and three orthogonal magnetorquers as actuators. We study how the performance of such ADCS maybe enhanced by using measurements and state vectors exchange. We interpolate the exchanged data, using the Kriging algorithm in conjunction with Extended Kalman filter and Lyapunov-based controller, since it provides the auto-correlation and variance information about the magnetic field, which is of utmost importance for heterogeneous and noisy fields. In our simulations we compare the performance of the controller for a single satellite to that of the satellite in the swarm of CubeSats in the form of a rigid tetrahedron with interpolated distributed measurements.
May 07 Alexander Kharlan: Space-based Telecom Systems for Aiding the Next-gen Mobile Services
Alexander Kharlan - Skoltech
The global mobile telecommunication market has been growing rapidly over the last few years, with new emerging markets and applications, such as IoT, unmanned vehicles and machine-to-machine communications, driving the demand for more connections and at the same time tightening the requirements for the modern telecom systems. With the next-generation ground-based networks still on their way to global coverage and proving their efficiency in some of the use-case scenarios they were meant to bring in, a trend has been observed where many companies worldwide would consider introducing space-based systems for providing global mobile broadband connection of a comparable quality to hundreds of millions of users.

Our group at the Space Center has decided to establish whether this ambitious goal is achievable, and at what cost: the multilayer complex models that we use to assess the global telecom systems' performance and cost might help us understand whether there is after all a solid place for satellites in the global mobile telecom market, or military-like security and global coverage is all there is to it.
Apr 30 Yaroslav Menshenin: Model-Based Concept Framework: a Case Study of a CubeSat Subsystem Development
Yaroslav Menshenin - Skoltech
A model-based concept framework supports a design team during conceptual design phase of system development. Such a framework is rooted in systems engineering theory and is answering three core questions: “what” is a critical information at conceptual design phase, “how” this data can be encoded with support of conceptual modeling language, and “why” the system designer develops a specific concept with specific parameters. In this presentation we demonstrate the applicability of a proposed framework to CubeSat subsystem development, namely, attitude determination and control system (ADCS). We gradually present a framework demonstrating its core entities. After that we demonstrate the utility of a model-based framework to build a concurrent engineering design tool. We present a prototype of the tool developed as part of this study allowing to determine mass, power, cost budgets, and also providing estimates for such ADCS performance indicators as detumbling time, pointing and attitude determination accuracy. Informed by this data, ADCS designer is then able to determine if the chosen architectural solution meets the requirements. A proposed framework facilitates ADCS development in Concurrent Engineering Design environment by identifying functional interactions between ADCS and its surrounding systems – other CubeSat subsystems - and thus informing design teams about Concept of Operations. Such framework could potentially be used at conceptual design phase of any CubeSat subsystem.
Apr 23 Kir Latyshev: Impact of the Lunar Gateway Location on the Human Landing System Architecture
Kir Latyshev - Skoltech
The international space community is preparing for the next phase of human space exploration – returning humans to the Moon for permanent stay. The lunar architecture currently proposed includes a deep space habitable station, the Gateway, as a central aggregation node for human missions to the Moon and beyond. Potential locations for the Gateway include lunar orbits, EML1 and EML2 conventional and near rectilinear halo orbits. The station orbit will greatly affect the transportation architecture supporting lunar exploration including the human landing system (HLS) which will deliver astronauts from the Gateway to the surface of the Moon and back.
The talk discusses impact of the Gateway location on the HLS architecture. The results of trajectory modeling of transportation operations between the Gateway and the lunar surface for 12 Gateway orbits are presented, and the impact of the associated delta-V costs on the HLS size for 1-stage, 2-stage, and 3-stage architectures is explored. A lunar exploration scenario with a single landing site at the lunar South Pole is assumed.
Apr 16 Elena Petrova: Forecast of the F10.7 cm and F30 cm radio flux for orbit prediction needs
Elena Petrova - Skoltech
Since the launch of Sputnik in 1957 more than 41 500 tons of man-made objects have been placed in orbit around the Earth, the Sun, or other planetary bodies. Since that time, the majority of objects such as rocket bodies and large pieces of space debris re-entered into the Earth's atmosphere in an uncontrolled way, which can pose a hazard to people and infrastructure. The forecast of re-entry date and time is a challenging task as one needs to specify the density of the upper Earth atmosphere that strongly depends on the solar activity, which itself is hard to predict. The talk focuses on 1-24-month solar radio flux forecast recently developed as an outcome of the joint project between Skoltech, ESA European Space Operations Centre and University of Graz. The presentation also covers the procedures of re-entry predictions employed by ESA and tests of developed techniques on past re-entry campaigns for payloads, rocket bodies and space debris that re-entered since June 2006 till June 2019. The test results demonstrate that the predictions obtained by the new algorithm in general also lead to improvements of the forecasts of re-entry epochs.
Apr 09 Petr Mukhachev: Machine learning for space systems health monitoring
Petr Mukhachev - Skoltech
Like any other complex system, satellite technical condition requires monitoring and analysis. Since visual inspection is not possible in most cases, the only source of the information left about satellite health is housekeeping telemetry. Traditionally, telemetry analysis is performed by the expert. However, expert time is costly and modern automated methods can significantly reduce the cognitive load by detecting suspicious time regions he should pay attention to. In this seminar we will summarize basic fault detection concepts, then we proceed to current state of the art in spacecraft fault detection and isolation especially using statistical and machine learning techniques. In the end we will talk about the main challenges in the field and future directions.
Mar 12 Mateja Dumbović: Solar modulation of cosmic rays
Dr. Mateja Dumbović - Hvar Observatory, Croatia
The galactic cosmic ray (CR) flux is modulated by the activity of the Sun – high solar activity reduces the galactic CR flux. On short time scales of typically several days, depressions in the CR flux can be seen, caused by interplanetary coronal mass ejections (ICMEs) and corotating interaction regions (CIRs). On even shorter time-scales of typically several hours, increases in the CR flux can be observed related to the eruptive processes on the Sun, i.e. solar energetic particles (SEPs). CRs have a major impact on Earth and interplanetary space and are therefore of great importance for both Space and Earth sciences. On the other hand the Sun, provides unprecedented insight into stellar magnetic activity and its impact on astrospheric plasmas and (exo)planetary magnetospheres, atmospheres and surfaces. Therefore, research on the solar modulation of CRs is relevant twofold – to understand different radiation environments as well as to gain insight into the solar (stellar) activity when and where other measurements are unavailable.
Feb 13 Anton Ivanov: Takeaways from Annual INCOSE International Workshop
Anton Ivanov - Skoltech
Skoltech is a member of the Coroporate Advisory Board of the International Council of Systems Engineers (INCOSE). This seminar will discuss topics that were discussed at the INCOSE International Workshop (INCOSE IW): CubeSat SysML Reference model, Current initiatives in OpenMBEE and examples of MBSE implementation in JPL, Airbus and other companies, academic certicication for systems engineering programs. Тhis seminar is open to everyone who is interested in current trends in digital engineering and digital transformation.
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