Red-Green's Bangladesh is in Space!!! Bangabandhu Satellite-1/মহাকাশে লাল-সবুজের বাংলাদেশ!!! বঙ্গবন্ধু-১ স্যাটেলাইট

in #technology6 years ago (edited)

Bangabandhu Satellite-1

Bangabandhu Satellite Details

Name: Bangabandhu-1

57th in the world to create satellites, the first in Bangladesh.

France's Thales Alenia Space has created the main structure of the Bangabandhu-1 satellite.

Total cost of implementation of Bangabandhu-1 satellite project is Tk 2,765 crore Of this, multinational bank HSBC has been giving loan of Tk 1,358 crore as loan.

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The location of Bangabandhu satellite in space will be 119.1 degree East longitude. During the launch, between 2 and 4. Some Benefits of Bangabandhu-1 Satellite

If bangabandhu satellite is launched, foreign currency will be saved, as well as making payments of roughly 50 million US dollars per year in rented country like Nepal, Bhutan. Because Bangladesh will use only 20 out of 40 transponders. And the remaining 20 will be given rent.

There are about forty-five TV channels in Bangladesh at the moment.

There are hundreds of Internet service providers or ISPs.

There are fifteen stations on the radio station. There is more. There is no V -SAT service.

If Bangabandhu can launch satellite, only foreign currency will not be saved in the country, as well as the unused portion can earn about 50 million US dollars every year by renting a country like Nepal, Bhutan, because 20 will be leased to another country.

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Bangladesh will not have to pay the money for the satellite rental.

Mainly due to the following uses of satellites:

  • (1) Astronomy or astronomy research

  • (2) Weather forecasts

  • (3) TV or radio channel, phone, mobile and internet communication technology

  • (4) In the direction of navigation or navigation

  • (5) Inspection - Parikrama (to know enemy position in military field)

  • (6) Far sensitive.

  • (7) Search and rescue under soil or water.

  • (8) Space Exploration

  • (9) For taking photographs (it is very important for the government).

  • (10) Hurricanes, cyclones, predictions of natural disasters.

  • (11) Nowadays terrorists are using Satellite phones in many remote areas.

  • (12) Global positioning or GPS

  • (13)Do gamma ray barrett detection.

  • (14) In addition to nuclear explosions and the upcoming attacks, there will be advance warning about ground forces and other intelligences.

  • (15) Oil, natural gas and various mining detection etc.

  • (16) Create a digital map.

He will understand how much a satellite is proud for the country, who knows about the satellite.
I am proud, the satellite in our country will fly in space

Red-green in space!

[Congratulations to everyone associated with the Bangabandhu-1 satellite, especially the BUETItians. Science Fiction and Arthur C. Clarke (why, later) were already studying satellites as huge fans, and from 2010 to 2011 there was something done with a French satellite consulting company. Then learn / learn some information about this]

None of these lines want to use the satellite word, everyone says "spacecraft" or "bird". It was the first education, although I could not get used to it.
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Bangabandhu-1 satellite flew a little earlier. This is a geostationary satellites. If there is no geostationary, then the satellite will not be available throughout the day, or in some cases it will be rotated with antenna satellite in the ground station, so that the cost increases.
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Photo: Newly created satellite land station in Gazipur

Not all satellites can be geostationary, there is no need. But the satellites geostationary, they have two characteristics:
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  • They are located just above the equator line (can be more than one degree / less)

  • As the Earth revolves around 24 hours in the center of its axis, these satellites revolve around the Earth's axis once in 24 hours.

The results of these two conditions- To keep pace with the rotation of the Earth, these satellites go over a certain area of ​​the Earth, ie Geo (earth or geography) + becomes (fixed). (The first picture is not actually fixed; the gun is running faster than the bullets, but standing on the earth will seem fixed)
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On the equator line, if the sky is extended to the sky by dragging numerous lines along the equator line from the center of the equator, the geostationary satellites are above that line. But this distance is not infinite; According to the sources discovered by Newton and Kepler hundreds of years ago, we know that Geostationary Satellite is about 35,853 kilometers away from the Earth. It is called Geostationary Orbit. It is also called Clarke Orbit in the name of science fiction writer Arthur C. Clarke, because Clarke gave the idea of ​​the first contact satellite.

There is a strange quality of any permanent orbit - it's a place where gravity and rotation speed can be traversed, the orbit of the orbit (whether it's our globe or the moon, but it does the same way, the satellites do the same way in the orbit. But how does it keep pace with the Earth? (It is impossible to keep pace with that much, so there is satellite gas which is high in pressure. As the rocket took place just occasionally)
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For those who have a lot of interest in physics and physics, they gave the mathematical explanation of how the satellite keeps the Earth in tune with how it does not fall or fly in space. Here we try to convince those two things without figures.
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How Bhasa: Suppose, you draw a circle of six inches radius, and draw another circle of forty-inch radius through the same center. If the speed of your shape is the same, then it will take more time to draw a larger circle, is not it? But if the big circle increases the size of the motion, then moving at a speed can be seen, the two circles are starting and ending at the same time, that is, the small circle of pencil and the big circle pencil is in the same rhythm. Similarly, geostationary satellites seem to be faster than the world, but they are still standing in one place.

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Photo: how the saturated satellites lie on the same point of the Earth

Why do not fly or fall: Plane or rocket can fly in the sky, fuel costs. But how does the satellite continue to operate without the engine? First, the satellites are taken directly to the top of the rocket, then the rocket starts moving at around 11,000 km per hour in the center of the Earth, and at one time the satellites are cut off. Leaving satellites continue at the same speed due to speed. For this speed, although the satellite may fall down to the Earth's attractiveness, but the amount of this coming down is equal to the curvature of the orbit. So the distance from the Earth is the same. If this speed was low, then it would have been delayed and if it had been more then it would have become elliptical. It is a little difficult to understand, so give an analogy. Suppose there is water for water logging on the streets of Dhaka. You take a bag, the bag is 38 inches above the water. Walking in the water, the water was deep, you picked the bag up a bit, so that the bag is above 38 inches from the water. Similarly satellites can maintain equal height.
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If the radius of about 42,000 km radius is approximately 2,64,000 kilometers (2πr) It is a kilometer away, but there is a space of 260,000 satellites, is not it? So on paper, but not in reality.
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Here's a problem for the poor countries. Do not know what to do before the trouble, what is the footprint. The light from the torch creates an enlightened circle, as well as satellite radio signals from only one area. That area is called the footprint / footprint of that satellite. As the sun falls under the sky in the night sky, in the sky behind the earth for the Geostationary Satellite Bangladesh in the United States, Bangladesh is not the footprint of the satellite, and that satellite will not work in Bangladesh. So, Bangladesh needs to set up satellites in such a way that Bangladesh will fall in its footprint. Where the satellites will sit, those places are called orbital slots, and the International Telecommunication Union (ITU) provides slots to each country beforehand to get it first. This is where cadre is located - all slots on or around the country have taken other countries (list below). Bangladesh does not want it before, so did not get it. Again many countries did not need their own satellites, so they sold slots; Like Tonga has auctioned five million slots of $ 2 million a year in 1988.
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In the southern hemisphere there are many places on the ocean, where there is no land, no humans. Slots are available in those footprints, but what about that?

It has become a lot of things that you are in Chittagong, and if you want you can buy the sea occupation 3000 miles away. But you need to stay home; What to do with the waters of the sea? So you will now have to buy the land from Chittagong and others in Chittagong.

It is important for the satellite to remain in our footprint-not buying water from the sea. Therefore, Bangladesh has done so, a slot lease in 119.1 degree longitude for 28 years with Russians for 15 years, which is Bangladesh's footprint.
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Photo: Location and Footprint of Bangabandhu-1. Signals are the most powerful in most inner ellipses

The satellite will last for 15 years (usually this is the case), then again this slot will lease, or by that time the technology will spread further, and the satellite will not be required. There is a limited number of geostationary slots - one that is not too disturbing, and does not disturb another radio frequency. (The price of the slot is increasing, the loss is not decreasing, if Tonga can think about it in 1988, why we could not think of our own slot, which is why it is now being bought by the money, detailing the slot shortage in the following [1] link)
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As soon as the house starts to be fixed, the land will be fixed, after which the plan is to understand the land, that plan is passed from RAJUK, so also for the satellites. Initially, there are satellites around the land (slot), they use any frequency, they do not interfere with them, it calculates the ITU frequency (plan side). Then satelite (home) is made. Bangladesh has got land, plan has passed, and after all satellites have been created and in space in space.
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Pictures: How different satellites and satellite geochemistry can interfere with each other's signal

#Lunch_Windows: For the first time, SPACE X-Falcon-9 rockets stop the launch at the last minute. But with the solution of the problem, why not be launched again? Because this launch window. Yes, this is not the window of Dhaka Barisal launch, when it's time to launch, an account of where the satellite space can reach the lowest cost. Have you ever seen slipping on something? The target moves to reach your rubbish; So, target and slip speed is calculated and pelted in front of the target. So also here; The slot is calculated by calculating it because the world is moving. Another thing is that when fuel is in orbit orbit (Orbital plain; if the whole orbit is imagined in a round plane, then it takes less energy). That's where the slot depends, depending on it. Cost of sending something to space; The cost to send per kilo is about 25,000 dollars or 20 lakhs taka. So it costs a lot to send additional fuel. Therefore, keeping these two accounts in mind for reducing costs, the time of the launch will be the lowest cost of the launch window.
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Photo: The rocket's path after the introduction; Where the first engine was opened and the 2nd engine (stage 2) was launched
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Photo: Rocket's second engine (stage 2) was launched

Waking up at night, many people of Bangladesh saw how our rockets were separated from the rocket and our Bangabandhu 1 satelite. Many people have heard about this change, the rocket stage-2 transfers in Orbit (transit orbit) reached. Suppose, on the plane by plane from the country's airport to the airport. Now go to the car to go home. Transparent Orbit is such an intermediate place, where the satellite separates from the rocket. After that the satellite will reach its own slot using its own fuel. Thalis engineers will do this work; There is no role of SPEx-X here. After a few days of testing, it will start its commercial use. The two satellites of the land will be in contact with our own satellites instead of the satellite's satellite.
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Photo: Bangabandhu-1 is going to be isolated from Falcon-9 in the transfer orbit
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Photo: Mission Control Room of Space-X after successfully completing the mission

Bangladesh is going forward!

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