Perigee
Perigee is the point in the orbit of a celestial body (such as a planet, moon, or satellite) that is nearest to the center of the body it orbits. In the context of space and astronautical engineering, perigee is an important concept as it determines the closest distance a spacecraft or satellite can be to the Earth. This distance affects the velocity and trajectory of the spacecraft, and can be used to optimize fuel consumption and mission objectives. For example, a spacecraft in a low Earth orbit with a perigee of 200 km will experience more atmospheric drag than a spacecraft in a higher orbit with a perigee of 500 km. Therefore, perigee is an important parameter to consider when designing and planning space missions.
Your Previous Searches
Random Picks
- Inspiration And Education: Inspiration and education in the context of space and astronautical engineering refer to the process of motivating and teaching individuals to pursue careers and interests in the field of space exploration. This involves providing access to ... Read More >>
- Performance Specifications: Performance specifications refer to a set of measurable parameters that define the performance requirements of a space or astronautical system. These specifications are used to ensure that the system meets the desired performance levels and ... Read More >>
- Quadrature Amplitude Modulation: Quadrature Amplitude Modulation (QAM) is a modulation scheme used in digital communication systems to transmit data over radio waves or optical fibers. It is a combination of amplitude modulation and phase shift keying, where two carriers a ... Read More >>
Top News
Bestselling author explains the science of happiness: "You can do the work"...
Bestselling author and Harvard professor Arthur Brooks opens up about how enjoyment, satisfaction and meaning in life can increase a person's wellbeing....
News Source: CBS News on 2024-11-18
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. H...
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. Here's when it peaks and why it's called the Beaver Moon....
News Source: CBS News on 2024-11-15
You can't put a price on the sense of awe particle physics inspires...
Astronomy and particle physics are no longer seen as vital by the US establishment, so funding has fallen. But our work creates a sense of wonder, and wonder matters, says Chanda Prescod-Weinstein...
News Source: New Scientist on 2024-11-13
If you want to stretch your gift game into days this holiday, check out these ad...
The advent calendar phenomenon is growing every year, with so many exciting, fun, beautiful, and delicious options available...
News Source: ABC News on 2024-11-04
November brings a bonanza of meteor showers...
November brings a skywatching bonanza, with three meteor showers — the Southern Taurids, Northern Taurids and Orionids — offering chances to see shooting stars....
News Source: NBC News on 2024-11-02