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Countdown begins for ISRO’s milestone mission

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Chennai: The 50-hour countdown for the launch on September 28 of an Indian rocket carrying seven satellites, including the ASTROSAT – the country’s first dedicated multi-wavelength space observatory that will help in understanding the universe – began on Saturday, the Indian space agency said.

India will cross the half-century milestone on Monday once it successfully injects the six foreign satellites into their intended orbit.

India has so far launched 45 foreign satellites for a fee.

According to Indian Space Research Organisation (ISRO), the Saturday countdown for the launch of the polar satellite launch vehicle (PSLV) began as scheduled at 8.00 a.m.

The rocket with seven satellites will blast off on Monday at 10.00 a.m. from the first launch pad of the rocket port at Sriharikota in Andhra Pradesh.

In 2008, ISRO had launched 10 satellites in one go including India’s Cartosate-2A satellite.

Now, ISRO will be launching seven satellites for the third time in its history.

On Thursday ISRO’s Mission Readiness Review (MRR) committee and Launch Authorisation Board (LAB) cleared the 50-hour countdown.

The 44.4 metre tall 320 tonne PSLV-XL version is a four-stage rocket with six strap-on motors for additional thrust during the initial phase of the flight.

The first and third stages are powered by solid fuel while the second and fourth stages are powered by liquid fuel which will be filled during the countdown.

Apart from fuelling up the engines, all the systems would be checked and rechecked during the countdown.

On Monday morning the rocket will launch India’s ASTROSAT weighing 1,513 kg, apart from four from the US and one each from Indonesia and Canada.

The PSLV will carry a total payload of 1,631 kg during this mission.

Just over 22 minutes into the flight, the rocket will eject ASTROSAT at an altitude of 650 kms above the earth.

Soon after, six other satellites will be put into orbit and the whole mission will come to an end in just over 25 minutes.

ASTROSAT, with a life span of five years, will observe the universe through optical, ultraviolet, low and high energy X-ray components of the electromagnetic spectrum, whereas most other scientific satellites are capable of observing through a narrow wavelength band, the agency said.

The Indonesian 76 kg LAPAN-A2 is a micro-satellite from the National Institute of Aeronautics and Space, meant for providing maritime surveillance using automatic identification system (AIS), supporting Indonesian radio amateur communities for disaster mitigation and carrying out earth surveillance using video and digital camera.

The 14-kg NLS-14 (Ev9) of Space Flight Laboratory, University of Toronto Institute for Advanced Studies, is also a maritime monitoring Canadian nano satellite using the next generation AIS.

The remaining four LEMUR nano satellites from Spire Global Inc., San Francisco, US, are non-visual remote sensing satellites, focusing primarily on global maritime intelligence through vessel tracking via AIS and high fidelity weather forecasting using GPS radio occultation technology, the ISRO said.

Business

Apple is giving a huge discount on its gadgets: Details inside

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If you want to buy an iPhone and were waiting for a nice offer, then we have a piece of good news for you! Amazon Summer Sale May 2022 has begun and they are offering major discounts on various smartphones, laptops, and smart TVs, among others.

The sale is live now on the e-commerce platform with no-cost EMI options and exchange discounts on various products. In addition to this, Amazon has also partnered with several banks including ICICI, Kotak Bank, and RBL so that customers get instant discounts of up to 10% using their cards and EMI transactions.

Customers can easily enjoy this summer sale and get massive discounts on iPhones. They can also compare prices on Flipkart Big Saving Days Sale 2022 before making a purchase.

 

Amazon Summer Sale May 2022: Discount offer on iPhone 13 

Apple’s coveted phone model iPhone 13 in the 128 GB storage model will be available during the Amazon Summer Sale May 2022 for Rs 64,900. The MRP of the phone is Rs 79,900. This means that the customers will be able to enjoy a discount of up to Rs 15,000 on the purchase of the iPhone 13.

If you have an old iPhone in working condition then you will also be eligible to receive another additional discount worth up to Rs 17,000 on the iPhone 13.

Buy at Rs. 64,900 (MRP – Rs. 79,900)

Features of Apple iPhone 13 

The iPhone is powered by an A15 Bionic processor with 6 core CPU. Apart from this, it has 16 core neural engines. With the iPhone 13, up to 512 GB of storage will be available. The iPhone 13 has a 6.1-inch Retina XDR display with 1000 nits brightness.

The iPhone 13 has a 12-megapixel dual rear camera setup. This time a new wide-angle camera has been given, whose aperture is f/1.6. With this, there is support for sensor optical stabilisation. Night mode has been made better than before. The second lens is also 12 megapixels ultra-wide and has an aperture of f/2.4.

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