Special Seminars on Space Technology

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Special Seminars on Space Technology

May 23 @ 9:00 am - May 24 @ 4:30 pm

Special Seminars on Space Technology

A series of seminars on various aspects of Space Technology will be delivered by Dr. Shinichi Nakamura of Space Tracking and Communication Center at Japan Aerospace Exploration Agency (JAXA) Tsukuba Space Center on 23-24 May 2019 at Room 106, Chalermprakiat Building, Asian Institute of Technology.

Topic 1: Space Debris Issue

Date:   Thursday 23 May 2019

Time:   9:00-12:00

Topic 2: Applying Machine Learning to Satellite Operation

Date:  Thursday 23 May 2019

Time: 13:30-16:30

Topic 3: Satellite Operation and Physics

Date:    Friday 24 May 2019

Time:   9:00-12:00

Topic 4:Overview of Multi-GNSS environment and applications and

Topic 5: Probability and Statistics

Date:    Friday 24 May 2019

Time:   13:30-16:30

Venue for All Seminars: Room 106, Chalermprakiat Building, Asian Institute of Technology

ABSTRACT:

Topic 1: Space Debris Issue

Satellites in orbit around Earth are used in many areas and disciplines, including space science, Earth observation, meteorology, climate research, telecommunication, navigation and human space exploration. They offer a unique resource for collecting scientific data, which lead to unrivalled possibilities for research and exploitation, both scientific and commercial. However, in the past decades, with increasing space activities, a new and unexpected hazard has started to emerge, i.e., space debris.

Topic 2: Applying Machine Learning to Satellite Operation

The uncertainty of atmospheric density and ballistic coefficient degrades the accuracy of orbit prediction in Low Earth Orbit (LEO), and it is important and beneficial for satellite operators to improve or develop atmospheric density model. However, due to the complex phenomenon at thermosphere and exosphere, it might be difficult to develop new and accurate atmospheric models beyond other models such as Jacchia-Roberts model (1976) and MSISE00 model (2002) even though applying latest science.

Although there might exist difficulties to develop a theoretical and empirical model, we have useful data that have the potential to contribute to atmospheric density’s improvement. For example, space environment data from earth observation satellites, metrological satellite, and ground observation are available at JAXA.  In addition, we have our own satellites’ ephemeris, especially the orbit decay rate.

Topic 3: Satellite Operation and Physics

At high school, they have studied motion of satellites according to the Newtonian physics. Basically the picture which you image is OK. At high school, we treated purely ideal conditions, that is, gravity by the earth is point like, no atmosphere, ignore gravity from the Moon and the Sun etc.

Topic 4: Overview of Multi-GNSS environment and applications

Multi-GNSS (Global Navigation Satellite System) Era has come. A lot of GNSS were observed especially low latitude countries. There will be a summarization on recent situation of GNSS, such as GPS (USA), GLONASS (Russia), GALILEO (EU), BeiDou(China), IRNSS (India) and QZSS(Japan).

Topic 5: Probability and Statistics

Through his experience, after graduating university, probability and statistics are most important technique in mathematics. In the seminar, he will bring many examples to explain probability and statics.

Brief Bio Data:

Dr. Shinichi Nakamura, Ph.D. graduated from Tokyo Institute of Technology, is a manager in Space Tracking and Communication Center at Japan Aerospace Exploration Agency, Tsukuba Space Center. He specializes in flight dynamics and mathematical analysis area, GNSS technology in aerospace field and in Remote Sensing system design.

His research areas include: Satellite mission analysis and earth science, Flight dynamics and mathematical analysis, Positioning and fundamental technology on GNSS and Space debris issue.

 


Details

Start:
May 23 @ 9:00 am
End:
May 24 @ 4:30 pm

Venue

Room 106, Chalermprakiat Building

Asian Institute of Technology

Klong Luang,

Pathum Thani

12120

Thailand

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