Recent Post

MATLAB : Fourier transform

By -
Image
By Nuno Nogueira, CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=3912826 MATLAB has been  crucial programming language across worldwide that let us express matrix and array mathematics directly. In signal processing and communication it plays vital role in analysing and exploring time series data in time domain or frequency domain. For analysing non periodic signals in frequency domain we use Fourier transform instead of Fourier series ,which is used to express periodic signals in terms of infinite sum of sinusoidal terms .   Fourier transform can exist for :      1. Energy signals      2. Power signals       3. Impulse signals  That means absolutely integrable signals can have their Fourier transform only.  Formula for Fourier transform;   Then its come to use Fourier transform in MATLAB. So here is the code for Fourier transform of sinusoidal wave , for any other signal we ...
2 comments

Can space junk be cleaned up?

By -

space junk,space,space debris,junk,spacex,space junk road,space news,space station,space exploration,space walk,hit by space junk,what is space junk,cosmic space junk,space junk hits home,omegamode - space junk,space junk solutions,space junk explained,space junk definition,walking dead space junk,attack of the space junk
By Miguel Soares - Own work, CC BY-SA 4.0, Link

Each day billions of people rely on data from satellites to go about their lives. We exchange chats, know the weather forecast and many more within a blink. Without satellites, our life would be dramatically different. After the first artificial satellite Sputnik-1, over 8000 satellites launch later. Satellites are part of our critical international infrastructure and intrinsic to everyday life on earth.

 Unfortunately, just as humans have polluted the oceans, air and land, we have left a dangerous mark in earth orbit leaving dead satellites and spent rocket parts in space that threatens both of our present and future missions. So it is prime demand of this time to clean our space.

 European space agency's mission Clearspace-1 will be the first space mission to remove an item of debris from orbit planned for launch in 2025.  In this mission a spacecraft with four robotic arms for grabbing debris, we installed. Clearspace CEO Luke Paquette says this spacecraft will be a tow truck that clear space debris to make room for satellites. Clearspace 1 will be launched into a 500 km orbit to undergo testing before it moves up to higher orbit.

Steps of removal of unresponsive satellites:



 FIND and track the target satellite orbiting at 7km/s at 720 km above sea level.CleanSpace One will swipe the search area with various sets of sensors to find the position of VESPA and initiate the approach. Once the VESPA has been found, CleanSpace One will follow a secure approach strategy so as to urge to VESPA’s location.

 CAPTURE the VESPA, which has not been designed to facilitate the capture. The selection of the capture mechanism and therefore the sensors for this operation required years of research and multiple iterations.

 REMOVE, it Freeing it's orbit for a future space mission and reducing risks of collisions. Once captured, the thing is going to be secured on the brink of the chaser’s body.

 REPEAT the cycle. It is the right time to clean space and work is going in this context. It will prove as a serious milestone in space science.

Comments

Post a Comment

Popular posts from this blog

Chandrayaan : A glorious legacy

By -
Image
In series of posts celebrating the success of ISRO, this is our third post and in this, we are going to remember a milestone of ISRO's journey, Chandrayaan-1.                                                                                                                      pic by:- Universe today Chandrayaan -1 was India's first mission to the moon. It was launched by ISRO in October 2008 and it was active until August 2009. The mission was a significant uplift to India's space program as most of the technologies used were developed in India. This mission is well known for the discovery of evidence of water molecules on the moon. MISSION HISTORY & OBJECTIVE The word...
Read more

Voyager : Journey of the twin to interstellar space

By -
Image
         Image credit: NASA/JPL-Caltech The Voyager mission was launched by NASA in Summer of 1977 which consists of two spacecraft named Voyager 1 and Voyager 2. The main mission for the dual spacecraft was to review Jupiter and Saturn. It's been more than 40 years, they have been travelling through our solar system, unveiling the mysteries of outer planets and discovering new moons and now they have reached in interstellar space. Let's have a look on their journey. LAUNCH Voyager 2 was launched on August 20, 1977. After 16 days, on 5th of September, 1977 voyager 1 was launched. The Voyager missions were designed to take advantage of a special alignment of the outer planets that happens every 176 years. It would allow a spacecraft to slingshot from one planet to the next, assisted by the first planet's gravity which means it will require less propellant and time. Voyager 1 was the first man-made object to reach beyond our solar system in interste...
Read more

ISRO: From bicycle to a billion dreams

By -
Image
Indian Space Research Organization (ISRO) is the space agency of the government of India. Today each and every person know about ISRO because of its remarkable achievements but since its establishment, it had gone through many ups and downs and many transformations. It started its journey with small rockets of just 30-50 kg payload and now it is carrying 4000 kg of payload to outer space. Let's have a look at its incredible journey. Establishment India's first space organization INCOSPAR (Indian national committee for space research) was established in 1962 by our first prime minister Jawaharlal Nehru and Vikram Sarabhai, a renowned Indian physicist and astronomer. He was the one who initiated space researches in India. Thumba equatorial rocket launching station was set up by INCOSPAR in Thiruvananthapuram for upper atmospheric research.  On 15th of August 1969, INCOSPAR was dissolved and ISRO was established with the vision of  "harnessing space technology f...
Read more