Which gave birth to Gaganyaan About SRE-1

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today we will learn about the experiment.

 Which gave birth to Gaganyaan.

About SRE-1

This is my 3d render of the Space Capsule Recovery Experiment (SRE – 1) was a capsule weighing 555kg it was sent into orbit this capsule was special because it was India's 1st thing sent into orbit and did a controlled recovery.

Spacecraft Design 

As you can see solar panels and 8 thrusters. Above you can see the tiles and cone. Let's discuss this in detail a bit its base diameter is about 2m height is about 1.6m nose cone base is 0.5m below you have solar panels for power 8 thrusters to control the capsule middle has a hatch for parachutes and a balloon, will explain properly at the end the tiles are silica tiles these tiles will protect during reentry a carbon-phenolic nose cone on top which can bear high temps.

why was this experiment made?

ISRO wanted to prove it can do a controlled reentry... a hypersonic reentry and that they can precisely land a capsule at its spot so from launch to recovery they also wanted to prove reliability and also show that they are ready for a human spaceflight program these all tech is used in the capsules that humans will be flying on in our case the Gaganyaan Capsule now this was in 2007!

Launch Vehicle

It was launched on PSLV C7 in Jan 2007, this was launched with a Cartosat Satellite and another 2 commercial sat's it was a dual adapter launch it was in orbit for around 12 days it had 2 experiments inside it one was a metal-related crystal experiment and a nano-particle experiment the experiments were a success the papers relating to them were behind a paywall.

Reentry 

interesting indeed then time came to deboost it so the engines were fired in a retrograde direction (opposite) then it rotated again to bring the nose cone forward so the cone will bear reentry heat it reentered well they wanted to test new things during this phase when a capsule is rendering and when plasma starts forming ... there is a communication blackout can't receive or send signals there was some tech implemented for this like... during a blackout, it will store all info locally and... as soon as it comes out of the plasma phase it will.... it will relay back all data it did all this successfully, it had to seperate 3 parachutes... 2 drogues shoots and a main parachute it did that successfully and finally splashed down in the bay of Bengal it inflated its floater device or it would sink it remained afloat another interesting thing is it released a fluorescent dye in the water that makes searching via air easy that was the visual part it also turned on its rescue beacon hence Indian Navy and coast guard could locate it as soon as it was located divers dived and checked it... then attached floaters... then it was put on a boat and brought back this was very important and sure many people haven't even heard about it ever heard of SRE-1.

where was its tech used?

The carbon-phenolic nose cone and silica tiles can be seen on the RLV have a look at many things in use and will be used on Gaganyaan its heat shield will mostly be different though maybe pica heat shield I found the platform very interesting look we will be able to do the experiment's on gaganyaan no doubt that will be expensive and send limited experiments and it won't happen frequently as well but this capsule is small, 2m dia and 555kg weights maybe.

we can make it lighter with new tech?

A slightly smaller capsule can be launched on the SSLV too... I feel if this platform was active today ... Indian institutes would have a unique microgravity research platform, it would be unique today as well its not like ISRO stopped it immediately they had planned SRE-2 and SRE-3 which were better but never took off they got canceled then gaganyaan came into focus my question to you is .... should ISRO bring this back? just for microgravity experiments not really that big scale it up/down ..Improve it a whole bit. what do you think? when gaganyaan will launch with Indians, everyone will be happy but don't forget this, this was the start to consider.

Top 10 space research organisations in the world

10 International Space University

France International Space university or IISC is a non-profit interdisciplinary University established in 1987
they offer best training in aerospace with groundbreaking facilities some of the notable projects include
mars analogue path
autonomous Lunar transport vehicle exploration of Mars from martian orbit etc.

9 space science and engineering Centre space science and engineering Centre SSEC

is research centre that mainly focuses on geophysical research and atmospheric concentration and variability
it is an integral part of University of Wisconsin Madison Graduate School
major programs include
atmospheric studies of earth and other planet space machine hardware development and fabrication Data access interactive computing and image processing

8. space studies Institute California

it is a non-profit organisation found in 1977 by Gerard o'neill from Princeton University their mission is to open the energy and material resources of space for human benefits notable project include
lunar sodium search
Mass driver simulation
lunar mining simulations etc

 7 space x

space X is the first successful private company founded by Elon Musk in 2002
the company has recently gained a lot of popularity because of its low cost rocket launch their primary aim is to reduce space transportation cost and enable colonization of Mars achievements include
first successful reuse of an orbital rocket Falcon 9
first propulsive landing for an orbital rocket and also they are the first private company to send spacecraft to ISS

6. China National space administration

China National space administration or CNSA was established in 1983 and is headquartered in Beijing
CNSA is responsible for development and planning of space related activities in China major projects include
double star mission
Kuafu mission satellite
space based ASAT system etc

5. Indian Space Research Organisation

ISRO is an Indian government space agency it was established in 1969 and holds the world record of launching 104 satellites in a single rocket PSLV C37
also ISRO was successful in sending spacecraft to marti orbit on the very first attempt for a total expenditure as low as 75 million dollars making it most cost-effective Mars mission ever
other achievements include Chandrayaan I which is a moon mission for data exploration

4. Japan Aerospace exploration agency 

Japan Aerospace Exploration agency was established in 2003 and is headquartered in Chofu Tokyo it is responsible for technology development, research works, launching satellites etc some of the notable missions include lunar exploration
solar sail research
Small body exploration called Hayabusa etc

3. European space agency

ESA was established in 1975 and it is an intergovernmental organisation under 20 European states It has more than 2000 employees and has an annual budget of 5 billion dollars notable accomplishments include COROT Space Telescope
Mars Express which is a space probe sent to Mars
likewise Venus Express
Artemis which is the most advanced telecommunications satellite
XMM Newton which is an x-ray observatory satellite etc

2. Russian Federal space agency

Russian Federal space agency or roscosmos for short is a Russian government space research agency established in 1992 with an overall budget of 5.6 billion dollars
some of the major projects are returned to the moon
return to Venus
Angara launcher
Mars simulation etc.

ISRO RLV TD Reusable Launch Vehicle TD

ISRO NEW ROCKET ADMIRE  RLV

India’s first solar mission Aditya-L1 to unravel many mysteries

some of the current missions include FOBOS which is a Mars mission
Luna which is a moon orbiter and Verena which is a venus launcher
also, the world's first satellite Sputnik was launched by the Soviet Union in 1957 starting the space age in human history finally

The number one NASA

Goddard Institute of space studies National Aeronautics and Space Administration is United State's space agency established in 1958
World's most space research exploration efforts have been held by NASA including Skylab, project Apollo, project Gemini, project Mercury etc
the major projects that NASA is currently working on is
Mars Exploration Rover
Ulysses is designed to study Sun Galileo probe to study Jupiter and its moon etc.

So those were the top 10 space research organisations in the world do let us know what do you think about this list in the comment 

ISRO RLV TD Indian Reusable Launch Vehicle

What is RLV TD ?

RLV TD stands for Reusable Launch Vehicle – Technology Demonstration . 

 RLV is a series of technology demonstration missions that has been conceived by the Indian Space Research Organisation (ISRO) as a first step towards realising a Two Stage To Orbit (TSTO) re-usable launch vehicle.

The RLV  TD is India’s first-ever indigenous made Reusable Launch Vehicle technology.

 The Reusable Launch Vehicle can launch satellites into orbit around earth and then re-enter the atmosphere. It will also be able carry astronauts.

The RLV TD is the space analog of an aircraft.

 Ideally it takes off vertically on the back of an expendable rocket and then glides back down like an aircraft. During landing phase, an RLV can either land on a runway or perform a splashdown. Small wings provide maneuverability support during landing.

ISRO successfully flight tested

 ISRO believe that they could reduce the cost of launching stuff into space by as much as 10 times May 23, 2016 ISRO successfully flight tested India’s first winged body aerospace vehicle operating in hyper sonic flight regime.

 In this experimental mission, the HS 9 solid rocket booster carrying RLV TD lifted off from the First Launch Pad at Satish Dhawan Space Centre, Sriharikota. After a successful flight of 91.1 second, HS 9 burn out occurred, following which both HS 9 and RLV-TD mounted on its top coasted to a height of about 56 km. At that height, RLV TD separated from HS  9 booster and further ascended to a height of about 65 km.

 From that peak altitude of 65 km, RLV TD began its descent followed by atmospheric re-entry at around Mach 5 five times the speed of sound.

 The vehicle’s Navigation, Guidance and Control system accurately steered the vehicle during this phase for safe descent.

 After successfully surviving a high temperatures of re-entry with the help of its Thermal Protection System (TPS), RLV TD successfully glided down to the defined landing spot over Bay of Bengal, at a distance of about 450km from Sriharikota, thereby fulfilling its mission objectives.

 The vehicle was successfully tracked during its flight from ground stations at Sriharikota and a shipborne terminal.

 Total flight duration from launch to landing of this mission lasted for about 770 seconds A total of four RLV-TD flights are planned by ISRO.

 HEX (Hyper-sonic Flight Experiment) completed on 23 May 2016.

 LEX (Landing Experiment)

 REX (Return Flight Experiment)

 SPEX (Scram jet Propulsion Experiment) The RLV-TD is a part of a larger experiment this particular spacecraft is scaled down almost six times smaller than what the final version will be , which is around 40 meters that is equal to 12 Floors. It is described as "a very preliminary step" in the development of a reusable rocket, whose final version is expected to take 10-15 years and expect to launch in 2030.

ISRO NEW ROCKET ADMIRE  RLV

ISRO Shukrayaan-1 mission

 ISRO Space Station

Objectives of RLV TD :

• Hypersonic aero thermodynamic characterisation of wing body

• Evaluation of autonomous Navigation, Guidance and Control (NGC) schemes

• Integrated flight management

• Thermal Protection System Evaluation

ISRO NEW ROCKET ADMIRE RLV

Welcome to INDIAN SPACE NEWS

WHAT IS ADMIRE

 Today we will learn about ISRO's secretive reusable rocket programme. This Program is called ADMIRE. ADMIRE full form is not in the public domain but it possibly means Advanced Mission and Recovery Experiments. ADMIRE will be a demonstrating platform on Which ISRO will demonstrate it's VTVL capability. 
which means vertical takeoff and vertical landing.

 So the rocket will take off vertically and the 1st stage, in this case, will land vertically. Just like the SpaceX rockets Falcon 9 and Falcon Heavy. This will be a very important capability for India if it wants to move towards Re usability.  These are the only official images from ISRO. These images were added to presentations ISRO presented at International Conferences. I have picked these up from there. Let's dig into the details. Starting from the bottom you can see landing legs. There's a Vikas engine, which can be identified from the shape of the combustion chamber. There are fins near the legs, on top, there are grid fins. then the nose cone on top.  Now it depends on how the test will be performed. 

SpaceX, before attempting landing with their Falcon 9 1st Stage .... they tested their landing models on a small rocket called Grasshopper. as you can see Grasshopper was a small rocket booster which verified their landing models. It went up, hovered a bit and came back down in one of the tests. Many were speculating this could be a grasshopper-like test. I have my doubts on this claim. As you can see , the rocket has fins on the bottom. and fins only work if the rocket has some velocity or they will be a dead weight. I feel this rocket will go pretty high up. and then do a landing attempt. So we should expect a flight of a few kilometres. Because the fins are mostly for stabilization. for some reason, journalists don't ask such questions at press conferences. I don't know !!! probably not like grasshopper. 

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India’s first solar mission Aditya-L1 to unravel many mysteries

Vikas Engine

Now ISRO might not be able to use a normal Vikas engine here. The engine needs the capability to restart. Engine fired. Liftoff. Shut Down. Fire again while landing. Hence we need a restarting engine to land. But in this case. Vikas engine uses hyperbolic fuels. Which means it doesn't have an igniter. So when the Oxidizer and fuel come in contact they burn on their own. So maybe it isn't as difficult to restart it? I'm not sure, maybe a subject matter expert can explain this.

Grid fins

 Grid fins are very important SpaceX rockets too have these. earlier they used Aluminium grid fins, now they have switched to Titanium grid fins. Because Titanium is better at tolerating heat. and have to be replaced less often. Grid Fins will help steer the rocket. The 4 grid fins will help rocket control Pitch, Yaw, and Roll. As you can see in the SpaceX video So we do not have to you RCS Quite often. RCS meaning Reaction control System . small puffs of gas which come out ... of small nozzles placed around rockets to control its movements So we can aerodynamically control the rocket. So a big advantage during reentry. It will also help induce more drag on the rocket body to slow it down further and act as an air brake. and as a steering mechanism tooo... 

Legs

 We don't really know how the legs on ADMIRE will be. Will they be per deployed? can they be kept stowed during launch ? and open up when required? so many questions.. only ISRO knows the current design of ADMIRE. ISRO once in a statement had said That they will use a LASER altimeter during landing' India's own Navigation system NavIC will be used for Navigation. I have made a CRITICAL  on NavIC vs GPS. LASER Altimeter will be used during landing. finding Altitude of the rocket using LASERSSSSSS maybe ISRO may use the LASER altimeter... developed for the Vikram Lander. Maybe they might use a similar version. nobody knows when it will launch? was suppose to be 2020, now 2021? next year? we might just see it this year ... my opinion on this ? See let's be clear ADMIRE is a test bed to verify their landing models. the learning from this will go into future rockets. We currently too don't have a proper reusable engine.

what is going to happen

 first when ISRO could see what happens to an engine that has already taken flight. and to learn to refurbish a engine after flight also, know if it can be reused in the 1st place. Probably a variant of this rocket will be made in future Many people talk about ULV. The rumoured Unified Launch Vehicle. But the priorities of this have changed with every chairman. Looks like we are looking at GSLV MK 4 /5.... or maybe RLV and then in the end ULV maybe? We also need to make an engine which is very powerful and reusable. ISRO's upcoming SCE 200 ... Semi Cryogenic engine 200 want to make a ARTICLE  on it soon.. if only we could make the engine reusable enough. because that engine is pretty powerful.... and a big rocket stage would be EPIC the most fruitful combination though will be when ISRO will combine this with RLV's future version. Imagine the 1st stage comes back and lands and we are able to recover the 2nd stage too So our current RLV , space shuttle like spacecraft ISRO is planning to scale the design up i am going to make a video soon on it both of them combined could make a TSTO two stage to orbit which will be very impressive then only will costs come down! the poverty of knowledge is real poverty. bably not like grasshopper. Now let's talk about Vikas Engine. Now ISRO might not be able to use a normal Vikas engine here. The engine needs the capability to restart. Engine fired. Liftoff. ShutDown. Fire again while landing. Hence we need a restarting engine to land. But in this case.. Vikas engine uses hypergolic fuels. Which means it doesn't have an ignitor. So when the Oxidiser and fuel come in contact they burn on their own. So maybe it isn't as difficult to restart it? I'm not sure, maybe a subject matter expert can explain this. Let's  now talk about grid fins Grid fins are very important SpaceX rockets too have these. earlier they used Aluminium grid fins, now they have switched to Titanium grid fins. Because Titanium is better at tolerating heat. and have to be replaced less often. Grid Fins will help steer the rocket. The 4 grid fins will help rocket control Pitch, Yaw, and Roll. As you can see in the SpaceX video So we do not have to you RCS Quite often. RCS meaning Reaction control System . small puffs of gas which come out ... of small nozzles placed around rockets to control its movements So we can aerodynamically control the rocket. So a big advantage during reentry. It will also help induce more drag on the rocket body to slow it down further and act as an air brake. and as a steering mechanism tooo... Now let's talk about the legs We don't really know how the legs on ADMIRE will be. Will they be pre deployed? can they be kept stowed during launch ? and open up when required? so many questions.. only ISRO knows the current design of ADMIRE. ISRO once in a statement had said That they will use a LASER altimeter during landing' India's own Navigation system NavIC will be used for Navigation. I have made a video on NavIC vs GPS. LASER Altimeter will be used during landing. finding Altitude of the rocket using LASERSSSSSS maybe ISRO may use the LASER altimeter... developed for the Vikram Lander. Maybe they might use a similar version. nobody knows when it will launch? was suppose to be 2019, now 2020? next year? we might just see it this year ... my opinion on this ? See let's be clear ADMIRE is a testbed to verify their landing models. the learning from this will go into future rockets. We currently too don't have a proper reusable engine. Also, this will be a first when ISRO could see what happens to an engine that has already taken flight. and to learn to refurbish a engine after flight also, know if it can be reused in the 1st place. Probably a variant of this rocket will be made in future Many people talk about ULV. The rumoured Unified Launch Vehicle. But the priorities of this have changed with every chairman. Looks like we are looking at GSLV MK 4 /5.... or maybe RLV and then in the end ULV maybe? We also need to make an engine which is very powerful and reusable. ISRO's upcoming SCE 200 ... Semi Cryogenic engine 200 want to make a video on it soon.. if only we could make the engine reusable enough. because that engine is pretty powerful.... and a big rocket stage would be EPIC the most fruitfull combination though will be when ISRO will combine this with RLV's future version. Imagine the 1st stage comes back and lands and we are able to recover the 2nd stage too So our current RLV , space shuttle like sapcecraft ISRO is planning to scale the design up i am going to make a video soon on it both of them combined could make a TSTO two stage to orbit which will be very impressive then only will costs come down! the poverty of knowledge is real poverty. 

TAGS ISRO RLV TSTO 

full form of ISRO

welcome to Indian space news

what is the full form of ISRO?

 ISRO's full form is the Indian Space Research Organisation.

who is the chairman of isro

Dr Kailasavadivoo Sivan

 ISRO is one of the world's leading and successful space research centers.

 ISRO was founded on 15 August 1969 under the leadership of Vikram Sarabhai, a very prominent scientist.

 ISRO makes different types of satellites for India and places them in space.

 Broadcast Communication, Weather Forecast, Geographic Information, Defence, Education, Telemedicine, Communication, etc satellite ISRO has been made for India.

 ISRO has so far installed more than 300+ satellites in space, many of which are satellites of other countries.

 ISRO built its first satellite in 1975 named Aryabhata.

 You can guess from how much fame ISRO has gained today,

 that today many developed countries of the world get their satellite installed in space through ISRO.

 Recently, the success of ISRO's mission Chandrayaan and Mission Mars, the whole world considered the success of this Indian Space Research Organization.

ISRO NEW ROCKET ADMIRE  

ISRO mangalyaan has discover the red planet is losing its air to space

India’s first solar mission Aditya-L1 to unravel many mysteries

Careers at ISRO

scientist ingenious technicians assistant and a lot more opening the exam for each row consists of a written exam followed by group discussion of selected candidates and final interview the eligibility condition for scientist and engineer is B.Tech full time degree in mechanical electronics or computer science for technical and technical assistant job role the eligibility criteria is 10th 12th ITI or diploma the candidate should prepare for questions related to their branch and also follow gate exam syllables for each row engineer or scientist there would be 80 multiple questions with 90 minutes time there is a negative marking for the exam and hence the applicant should be careful in answering the topics covered for scientists our communication system signals and system physical electronics electron devices IC microwave
 engineering analog electronic circuit electromagnetic theory control system network theory computer engineering and digital electronic circuit in the same manner assistant technician and assistant for Isro have their own syllabus to be followed
 candidates who to get recruited in is row are to dedicate and work hard by preparing well for exam they are advice to prepare ahead of time so that they get ample time for revising they can download previous year question papers and practice them for a better understanding of the syllabus getting registered in various sites and attending mock tests for each row can help you learn time management canner should make a schedule collect all the required material and start studying for the exam candidate must allocate time for each section and star their preparation applicants can seek the help from www.freshersworld.com as it offers you complete details about East row when recruitment are published the website provides details such as exam date advertisement application methods downloading of question papers and a lot more
 hence fresher and applicants who desire to get into government jobs like each row can get themselves registered with freshersworld.com getting recruited in each row is one of the most challenging and prestigious post also every year surplus people try to get through the written exam but only a few get recruited into the prestigious concern applicants who dreamed to be a part of East row are to work hard and take necessary steps to clear the written test each row has many new things and astonishing expect for candidates to learn an experience and hence getting through a proper plan Bay for the written exam can surely help the candidates pass the exam and get recruited so stay connected with official site and reliable website like www.freshersworld.com for up-to-date information about a thorough jobs you