Orbit of Chandrayaan-2’s lander lowered, one step closer to Moon landing

Agencies
September 3, 2019

New Delhi, Sept 3: The orbit of Chandrayaan-2's landing module 'Vikram' was successfully lowered for the first time on Tuesday and one final manoeuvre remained for India to pull off a historic soft-landing on the moon in the early hours of Saturday.

The 4-second de-orbiting operation was undertaken a day after the indigenously developed lander was separated from Chandrayaan-2's orbiter in a major milestone pushing India's second lunar mission into its last and most crucial leg--a controlled, soft-landing on the Moon.

The propulsion system on-board the lander was fired for the first time to lower its orbit after it started orbiting the moon independently, said the Indian Space Research Organisation(ISRO).

So far, all operations in the journey to the moon were carried out by the main orbiter of the 3,840-kg Chandrayaan-2 spacecraft that was launched into the earth's orbit on July 22 by the country's Geosynchronous Satellite Launch Vehicle, GSLV MkIII-M1.

The ISRO will perform one more de-orbiting manoeuvre on Wednesday, before the powered descent of 'Vikram' on September 7 for its landing in the lunar south pole.

A successful landing will make India the fourth country after Russia, the US and China to achieve a soft landing on the moon. But it will be the first to launch a mission to the unexplored south pole of the Moon.

"The first de-orbiting manoeuvre for Chandrayaan-2 spacecraft was performed successfully today (September 03, 2019) beginning at 0850 hrs IST as planned, using the onboard propulsion system. The duration of the manoeuvre was 4 seconds," the ISRO said giving the latest update on the Rs 978 crore Chandrayaan-2 mission.

"The orbit of 'Vikram' Lander is 104 km x 128 km. Chandrayaan-2 Orbiter continues to orbit the Moon in the existing orbit and both the Orbiter and Lander are healthy," it said, adding that the second and final manoeuvre to further lower the orbit is scheduled on September 4 between 3.30 and 4.30 am IST.

'Vikram' (with rover 'Pragyan' housed inside) is expected to touch down on the surface of the moon on September 7, between 1.30 and 2.30 am.

ISRO Chairman K Sivan has said the proposed soft-landing on the Moon is going to be a "terrifying" moment as it is something the space agency has not done before while the Lunar Orbit Insertion(LOI)manoeuvre was successfully carried out during the previous Chandrayaan-1 mission.

Following the landing, the rover 'Pragyan' will roll out from the lander between 5.30 and 6.30 am on September 7, and carry out experiments on the lunar surface for a period of one lunar day, which is equal to 14 earth days.

The mission life of the lander is also one lunar day, while the orbiter will continue its mission for a year.

Chandrayaan-2 satellite had began its journey towards the moon leaving the earth's orbit in the dark hours on August 14, after a crucial manoeuvre called Trans Lunar Insertion (TLI) that was carried out by ISRO to place the spacecraft on "Lunar Transfer Trajectory." In a major milestone, the spacecraft had successfully entered the lunar orbit on August 20 by performing the LOI operation.

The health of the spacecraft is being continuously monitored from the Mission Operations Complex (MOX) at ISRO Telemetry, Tracking and Command Network (ISTRAC) in Bengaluru with support from Indian Deep Space Network (IDSN) antennas at Bylalu, near Bengaluru, the space agency has said.

The orbiter carries eight scientific payloads for mapping the lunar surface and studying the exosphere (outer atmosphere) of the Moon while the lander carries three scientific payloads to conduct surface and subsurface science experiments.

The rover carries two payloads to enhance the understanding of the lunar surface.

According to the ISRO, the objective of the mission is to develop and demonstrate the key technologies for end-to-end lunar mission capability, including soft-landing and roving on the lunar surface.

On the science front, this mission aims to further expand knowledge about the moon through a detailed study of its topography, mineralogy, surface chemical composition, thermo-physical characteristics and atmosphere, leading to a better understanding of the origin and evolution of the moon, the space agency had said.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 13,2024

lebenonstrikes.jpg

Beirut: The Israeli army on Tuesday continued to launch attacks against civilians in Lebanon, targeting them in several areas without prior evacuation warnings.

However, 13 airstrikes on Beirut’s southern suburbs in the space of only three hours were preceded by evacuation warnings.

The attacks caused no injuries but resulted in widespread destruction of residential buildings and commercial, medical and educational centers.

The airstrikes in southern Lebanon and Bekaa region, reaching Akkar in Lebanon’s far north, erased any hope of a near-term ceasefire settlement.

The strikes were accompanied by an announcement on Israel’s Channel 14 that “the Israeli army has expanded its operations in southern Lebanon to areas it had not reached since the beginning of the ground operation.”

About 50 days have passed since Israel intensified its hostile operations in Lebanon targeting Hezbollah. The death toll from these confrontations and attacks has passed 3,200, with more than 14,000 wounded.

For the first time, an airstrike targeted a mountainous area between Baalchmay and Aabadiyeh on the road leading to Aley, destroying a building housing displaced people.

The mayor of Baalchmay, Adham Al-Danaf, confirmed that “the airstrike targeted a residential building in the Dhour Aabadiyeh area.”

The initial toll from the Ministry of Health showed “five people killed and two injured.”

The raids that targeted Beirut’s southern suburbs for the first time in the morning, unlike nightly raids before, caused huge destruction. Those who evacuated their homes after Israeli warnings, used their phones to record the collapse of empty buildings in Sfeir, Haret Hreik, Bir Al-Abed, Mrayjeh, Laylaki and Hadath.

Israeli warplanes also targeted Tyre, where a strike on a building killed three people and injured many others, while a raid on Tefahta killed a man identified as Kifah Khalil and his family.

Attacks were widespread, with Yater and Zebqine subject to artillery shelling, a civilian being killed in Hermel, and further attacks on Bouday and an area between the towns of Srifa and Arsoun.

A raid on the town of Siddiqin killed two people and injured several others, while an attack on the Mechref farm led to one fatality and multiple injuries.

The search for those missing after an Israeli raid on the town of Ain Yaacoub in Akkar, in the northernmost part of Lebanon, continued until dawn.

During the operation, 14 bodies were retrieved, identified as those of residents displaced from the town of Arabsalim in the Iqlim Al-Tuffah area of the south, along with members of a Syrian family, a mother and three of her children. Additionally, there were 10 people in critical condition.

The targeted residence belongs to a Lebanese citizen, Hussein Hashim, who is reported to be a member of the Syrian Social Nationalist Party.

An airstrike on the town of Saksakiyeh in the Sidon region on Monday night resulted in yet another tragedy.

It appeared that the intended target was the Shoumer family, who just days before lost Hussein Amin Shoumer and his two sisters in a drone strike near Al-Awali River.

Israeli army spokesperson Avichay Adraee issued additional evacuation warnings for towns in the southern region along the Litani River, which, according to estimates from the mayors, are currently 90 percent uninhabited.

In the meantime, Hezbollah announced its continued efforts to “combat the intrusions of Israeli forces and to strike military installations and towns in the north.”

Hezbollah said in a statement that it confronted “an Israeli Hermes 450 drone in the airspace of Nabatieh and forced it to leave Lebanese airspace.”

The party also announced that it targeted “Kfar Blum settlement with a rocket salvo.”

On the Israeli side, air raid sirens sounded in areas of Upper and Western Galilee and in the town of Kiryat Shmona and its surroundings.

The Israeli army confirmed that “a drone exploded in Nesher, east of Haifa, without activating the air raid sirens,” and that “a drone launched from Lebanon crashed into a school in Gesher HaZiv, north of Nahariya.”

Israel’s Channel 13 reported the Israeli military’s assessment regarding Hezbollah’s military strength, claiming that the group currently possesses approximately 100 precision missiles, thousands of artillery shells, and hundreds of rockets. Additionally, it was highlighted that “there are around 200 Lebanese towns that remain unvisited.”

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 17,2024

hizbullah.jpg

An Israeli airstrike on the office of Syria’s Baath party in Lebanon’s capital Beirut has killed the Lebanese resistance movement Hezbollah's Media Relations Officer, Mohammad Afif, reports say.

Lebanon's National News Agency (NNA) reported that the Israeli raid struck the Ba'ath party’s building in central Beirut district of Ras Al-Naba'a on Sunday, adding that the strike was an attempt to assassinate the leader of the resistance media front.

According to Baath Secretary-General Ali Hijazi, Afif was having a meeting in the Baath Party headquarters when Israel carried out the attack.

"Afif did not fight with weapons and did not lead a military unit in Hezbollah. Rather, he led a media unit," he said.

Reuters, Sky News, Al Jazeera and a number of Henrew-language media reported that Afif was killed in the Israeli strike.

However, Hezbollah has not yet confirmed Afif’s death or whether he was present at the site or not.

Earlier, the Lebanese Health Ministry said at least one person was killed and three others injured after an Israeli strike targeted a central district in Beirut.

Lebanon's al-Mayadeen television network reported that five people were killed in the attack.

The latest development came after Afif said Hezbollah was behind the Caesarea operation and targeting Netanyahu’s home during a speech at the Ghobeiry area in the southern suburbs of Beirut on October 22.

This was the second assassination attempt on Afif in the last two months, after he survived an attack on the Hezbollah media relations office several weeks ago.

Israel launched a ground assault and massive air campaign against Lebanon in late September after a year of exchanging fire across the Lebanese border in parallel with the Gaza war.

At least 3,287 people have been killed in Israeli strikes in Lebanon over the past year, with the vast majority in the past seven weeks. Another 14,222 have been wounded, mostly women and children.

In response to the ongoing aggression, the Lebanese resistance movement Hezbollah has been staging hundreds of retaliatory strikes against the occupied Palestinian territories and the Israeli forces trying to advance on southern Lebanese areas.

The movement has vowed to sustain its strikes until the regime ends the escalation.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 14,2024

Bengaluru: Karnataka Deputy Chief Minister D K Shivakumar on Thursday backed Chief Minister Siddaramaiah over his claim that the BJP had offered Rs 50 crore each to 50 Congress MLAs in an attempt to "topple" the state government.

Addressing reporters here, Shivakumar, also the Congress state president, said, “The BJP indeed lured 50 Congress MLAs with Rs 50 crore each.”

He defended Siddaramaiah’s statement and said the Congress MLAs were briefed about the BJP’s alleged 'Operation Lotus', a term used to describe the BJP's attempts to destabilise ruling governments through horse-trading.

“Some of our MLAs informed the Chief Minister about this matter, and he, in turn, shared it with the media,” Shivakumar said.

At an event in Mysuru, Siddaramaiah reiterated the claim that "none of the Congress MLAs had accepted the offer".

He also accused the BJP of filing false cases against him in a bid to "remove him and overthrow his government".

The BJP has yet to respond to the allegations.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.