Iran will launch a satellite into orbit by the end of this week, a government minister has said.

"We are not afraid of failure and we will not lose hope. With your prayers and trust in God, the Zafar satellite by the end of this week ... will be heading toward an orbit of 530 km from Earth," Iranian Minister of Information and Communications Technology Mohammad Javad Azari-Jahromi tweeted on Monday.

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The head of Iran's national space agency recently said that work on the scientific observation satellite named Zafar - which means victory in the Farsi language - "began three years ago with the participation of 80 Iranian scientists."

Morteza Berari said on Saturday that the 113kg satellite will be launched by a Simorgh rocket 530km (329 miles) above the Earth, where it will make 15 orbits daily.

The satellite was designed to remain operational for "more than 18 months", he added.

Its "primary mission" will be collecting imagery, said Berari. He said Iran needed such data to study earthquakes, prevent natural disasters and develop its agriculture.

"It will be a new step for our country," said Berari, noting that Iran had previously managed to place a satellite into orbit 250km (155 miles) above the Earth.

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While the Islamic republic's satellite programme has concerned some Western countries, Berari said Iran advocates for the "peaceful use of outer space".

"All our activities in the domain of outer space are transparent," he said.

The Iranian Space Agency hopes to build five more satellites before March 2021, Berari added.

In January 2019, Tehran announced that its Payam - which means Message in Farsi - satellite had failed to reach orbit. Authorities had said they launched Payam to collect data on environmental change in Iran.

The launch of its carrier rocket was preceded by warnings from the United States, which described it as a "provocation" and a violation of a 2015 UN Security Council resolution.

The Resolution 2231 endorsed an international accord on curbing Tehran's nuclear programme and called on Iran to refrain from any activity related to ballistic missiles capable of delivering nuclear weapons.

Iran maintains it has no intention of acquiring nuclear weapons and says its aerospace activities are peaceful and do not violate the UN resolution.