ISRO reschedules Proba-3 launch after detecting 'anomaly' in satellite's propulsion system
Sriharikota (Andhra Pradesh), Dec 4: The ISRO has rescheduled the launch of European Space Agency's Proba-3 satellite, meant for solar experiment, for Thursday, after an anomaly was detected minutes before the launch on Wednesday.
The Bengaluru-headquartered space agency had originally planned to launch European Space Agency's (ESA) Proba-3 at 4.08 pm on Wednesday from the spaceport here.
"As per the ESA's request, the launch of PSLV-C59/PROBA-3 has been rescheduled as follows: Date: 05th December 2024 Time: 16:04" (4.04 pm), the space agency said in its latest update. The revised launch was earlier fixed at 4.12 pm on Thursday.
ESA Director General Josef Aschbacher said the anomaly occurred in the redundant propulsion system of the Coronagraph spacecraft which was onboard the PSLVC59 mission and currently the scientists were involved in identifying the cause of the incident.
"During Proba3's pre-launch preparations at the Satish Dhawan Space Centre in India, an anomaly in the redundant propulsion system of the Coronagraph Spacecraft occurred. This propulsion system is part of the attitude and orbit control subsystem of the satellite and used to maintain orientation and pointing in space." Aschbacher said in a social media post.
"The anomaly is currently under detailed investigation. The use of a software solution by the mission control team at @ESA’s ESEC centre at Redu, Belgium is being evaluated to allow a launch on Thursday 5 December at 11:34 CET (10:34 GMT, 16:04 local time)." he said .
Dubbed as world's first initiative of its kind, the Proba-3 (Project for Onboard Anatomy) consists of two satellites -- Coronagraph (310kgs) and Occulter (240kgs) -- in which two spacecraft would fly together as one, maintaining precise formation down to a single millimetre to study the Corona, the Sun's outer atmosphere.
The European Space Agency (ESA) said the Corona is much hotter than the Sun itself and it is where space weather originates. It is also a topic of widespread scientific and practical interest.
For ISRO, this launch would provide key insights on taking up scientific experiments on the Sun after its maiden mission--Aditya-L1 which was successfully launched in September 2023.
Proba-3 is a technology demonstration mission funded via the General Support Technology Programme. The instruments onboard the satellites would travel closer to the solar rim for up to six hours at a time and each spacecraft would take up approximately a 19-hour orbit around the Earth.
NewSpace India Ltd, the commercial arm of ISRO has bagged the order from the ESA.
The 25-hour countdown was progressing smoothly since it commenced on Tuesday at 3.08 pm and scientists at the spaceport here have been working on preliminary works for the launch.
'Probas' is a Latin word, meaning 'Let's try'.
The mission objective is to demonstrate precise formation flying and the two spacecraft inside the satellites would be launched together in a stacked configuration after the desired orbit level is reached.
PSLV-C59 is a 44.5 metre tall rocket and is on its 61st flight and the 26th with the PSLV-XL variant which is normally used to place heavy satellites.
The two satellites (Coronagraph and Occulter) would undertake an 18-minute journey to reach the desired orbit.
After reaching the preparatory conditions, the two spacecraft would fly 150 metres apart (as one large satellite structure) in tandem so that the 'Occulter' spacecraft would block out the solar disk of the sun enabling 'Coronagraph' to study the corona of the Sun or the surrounding atmosphere, for scientific observation.
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Trump says EU has until July 4 to approve last year's trade deal or it will face higher tariffs
Washington (AP): President Donald Trump has said in a social media post that goods from the European Union would face higher tariff rates if the 27-member bloc fails to approve last year's trade framework by July 4.
The announcement on Thursday appeared to be a deadline extension after the president said last Friday that EU autos would face a higher 25 per cent tariff starting this week. Trump made the updated announcement after what he described as a "great call" with European Commission President Ursula von der Leyen.
Still, the US president was displeased that the European Parliament had yet to finalize the trade arrangement reached last year, which was further complicated in February by the US Supreme Court ruling that Trump lacked the legal authority to declare an economic emergency to impose the initial tariffs used to pressure the EU into talks.
"A promise was made that the EU would deliver their side of the Deal and, as per Agreement, cut their Tariffs to ZERO!" Trump posted. "I agreed to give her until our Country's 250th Birthday or, unfortunately, their Tariffs would immediately jump to much higher levels."
It was unclear from the post whether Trump was implying that the tariff rates would jump on all EU goods or the increase would only apply to autos.
His latest statement indicates he might be backing away from his earlier threat on EU autos by giving the European Parliament several more weeks to approve the agreement.
Under the original terms of the framework, the US would charge a 15 per cent tax on most goods imported from the EU.
But since the Supreme Court ruling, the administration has levied a 10 per cent tariff while investigating trade imbalances and national security issues, aiming to put in new tariffs to make up for lost revenues.
