Wednesday May 23, 2018
Home India ISRO gears up...

ISRO gears up to launch five British satellites all together

0
//
281
Republish
Reprint

Chennai: An Indian rocket is readying for its heaviest mission on July 10 to put into orbit five British satellites – all together – weighing around 1,440 kg from the space port in Sriharikota, the Indian space agency said Saturday.

According to the Indian Space Research Organisation (ISRO) its Polar Satellite Launch Vehicle (PSLV) is scheduled to carry aloft five foreign satellites on July 10.

The four stage/engine PSLV rocket in XL variant is expected to blast off at around 10 p.m. from the Sriharikota space centre in Andhra Pradesh around 80 km from here. The 62.5 hours countdown will start on July 8 at around 7.30 a.m.

Of the five, three are identical DMC3 optical earth observation satellites weighing 447 kg. These will be put into a 647 km sun-synchronous orbit.

Of the other two satellites, CBNT-1 weighs 91 kg and is also an optical earth observation technology demonstration micro-satellite, while the De-OrbitSail weighs 7 kg. This is an experimental nano satellite for demonstration of large thin membrane sail and drag deorbiting.

The three DMC3 and the CBNT-1 satellites are built by Surrey Satellite Technology Ltd. The De-OrbitSail is built by Surrey Space Centre.

According to ISRO, accommodating the three DMC3 satellites each with a height of about three metres within the existing payload fairing or the heat shield of the PSLV was a challenge. Thus, a circular L-adaptor and a triangular Multiple Satellite Adapter-Version 2 (MSA-V2), were newly designed and realised by ISRO for this specific purpose.

France’s SPOT 7 satellite weighing 714 kg was the heaviest single foreign satellite carried by a PSLV rocket till now. It was launched on June 30, 2014.

(IANS)

Click here for reuse options!
Copyright 2015 NewsGram

Next Story

A New Tool May Aid Patients To Detect Urine Blockage

Surgeons are developing a new smartphone-based tool that can detect urethral or urine blockage, potentially making it easier for patients to test themselves for the condition from the comfort of their own homes.

0
//
17
Americans have been oberved being online almost everytime.
representational image

Surgeons are developing a new smartphone-based tool that can detect urethral or urine blockage, potentially making it easier for patients to test themselves for the condition from the comfort of their own homes.

The novel technique could take high-speed photography which could capture subtle differences between a normal steady stream of liquid and a stream of liquid with an obstruction.

Urethral strictures are a slowing or blocking of the natural flow of urine due to an injury or infection. It is normally diagnosed by uroflowmetry, a test administered at a physician’s office.

“The problem is that patient follow-up after we treat this condition is very poor,” said Matthew Gretzer, Associate Professor at the University of Arizona in the US.

“But we need patients to come back to our clinic for a uroflow test to determine if the obstruction is still present,” he added.

representational image

In order to test Gretzer’s hypothesis on high-speed photography, the team created a model of a urethral structure using tubing hooked to a saline bag that could drain through.

Saline fluid was passed through the tubing with and without blockages, created using 3D printed strictures, placed within the tubing. High-speed photography captured both the regular and blocked stream of liquid exiting the tube.

Gretzer contended that photos can be a medium to diagnose blockages and he hopes that patients could send him these images to analyse and make the diagnosis. He plans to create a mobile app which can be downloaded by the patients.

“All patients would need to do is take high-speed images of their urine flow using a strobe light,” Gretzer said.

“Strobe light apps are readily available right now for people to use on their phones”.

Also Read: Astronauts from Clemson University in US Believe Human Urine Can Help Safer Space Travel

According to the researchers, as fluid exits an opening, a natural breakpoint occurs where the liquid stream forms droplets, but with obstructions in place, it changes.

The results showed that by analysing photos, they could measure the length to this point of droplet formation. This length then directly related to the presence of an obstruction in the tube. (IANS)

Next Story