Table of Contents
- 1 Which Control Center in the ground segment monitors and commands the spacecraft bus and common spacecraft systems?
- 2 How will the James Webb Telescope communicate?
- 3 What are the space and ground segments of a satellite communication system?
- 4 How could information and communication technology helps in the field of space exploration?
- 5 What is ground segmentation?
- 6 Why uplink and downlink frequencies are different in a satellite communication system?
- 7 What is the function of Earth segment in a satellite?
- 8 Why does the ground system have its own terrestrial and space communication?
Which Control Center in the ground segment monitors and commands the spacecraft bus and common spacecraft systems?
Mission Operations Center
Mission Operations Center (MOC): Commands the spacecraft. Monitors spacecraft performance.
How will the James Webb Telescope communicate?
The Webb will send science and engineering data to Earth using a high frequency radio transmitter. Large radio antennas that are part of the NASA Deep Space Network will receive the signals and forward them to the Webb Science and Operation Center at the Space Telescope Science Institute in Baltimore, Maryland, USA.
What are ground systems?
Space ground systems are made up of several primary components including Ground Stations, Mission Control Centers, Ground Networks, Remote Infrastructure, and Launch Facilities. These components work together to enable management of spacecraft, payload data, and telemetry.
What is ground segment in satellite communication?
A ground segment consists of all the ground-based elements of a spacecraft system used by operators and support personnel, as opposed to the space segment and user segment. The ground segment enables management of a spacecraft, and distribution of payload data and telemetry among interested parties on the ground.
What are the space and ground segments of a satellite communication system?
The space segment of an artificial satellite system is one of its three operational components (the others being the user and ground segments). It comprises the satellite or satellite constellation and the uplink and downlink satellite links.
How could information and communication technology helps in the field of space exploration?
The use of computers pave way to better understanding and better handling of all sorts of information. With the appliance of ICT in these occasions, it helps provide better solutions and instructions to astronauts. ICT technologies get better everyday as new devices get developed for space exploration.
How has space exploration helped communication?
Space-based technologies, namely communications satellites, enable global telecommunications systems by relaying signals with voice, video and data to and from one or many locations. …
What method of exoplanet detection will the James Webb Space Telescope employ?
transit method
Webb and Exoplanets One method Webb will use for studying exoplanets is the transit method, which means it will look for dimming of the light from a star as its planet passes between us and the star.
What is ground segmentation?
Ground segmentation is an important preprocessing task for autonomous vehicles (AVs) with 3D LiDARs. The method uses an improved elevation map for ground coarse segmentation, and then uses spatiotemporal adjacent points to optimize the segmentation results.
Why uplink and downlink frequencies are different in a satellite communication system?
In satellite communication, the uplink frequency is higher than the downlink frequency because the attenuation level increase with an increase in frequency. The power at the ground station (Base Station) is more than compared to the power available at the satellite.
How does the communication take place between space segment and Earth segment?
As shown in the figure, the communication takes place between space segment subsystems and earth segment subsystems through communication links. The subsystems present in space segment are called as space segment subsystems.
What are the subsystems present in the space segment?
The subsystems present in space segment are called as space segment subsystems. Following are the space segment subsystems. The subsystems present in the ground segment have the ability to access the satellite repeater in order to provide the communication between the users. Earth segment is also called as ground segment.
What is the function of Earth segment in a satellite?
Earth segment performs mainly two functions. Those are transmission of a signal to the satellite and reception of signal from the satellite. Earth stations are the major subsystems that are present in earth segment. We will discuss about all these subsystems of space segment and earth segment in following chapters.
Why does the ground system have its own terrestrial and space communication?
Because the facilities that process data may not be co-located with the receiving system, the ground system will have its own terrestrial and space communication links. 3 Ground System Elements