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NASA and ULA targeting July 30 for launch of Mars 2020

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July 30th, ULA’s Atlas 5 rocket will launch NASA’s Perseverance rover on a seven month journey to Mars. The launch window on July 30th is extends for two hours. Mars 2020 will land in Jezero crater on Mars, in late-February/early-March 2021. The mission has been delayed more than two weeks due to multiple issues with the Atlas 5 rocket.

About the Mission

Launch Time: 5:20PM IST

Launch Site: SLC-41, Cape Canaveral Air Force Station, Florida

Perseverance Rover

The most extraordinary segment of this mission that it is the first mission to Mars in search of evidence of past life.

Mars 2020 Perseverance rover
Mars 2020 Perseverance Rover (Image Credit: NASA/JPL)

Mars 2020 will also carry the first helicopter to fly on another world. The helicopter, named Ingenuity, will largely test helicopter technology that will help pave road for Future Human flights.

Perseverance will use the same “Seven Minutes of Terror” entry and landing profile that its cousin rover, Curiosity, used when it arrived on Mars in August 2012.

Launch Vehicle

For years, the U.S. government paid ULA over $800 million annually — not for rockets or launches but for ULA to maintain their facilities to be ready to launch EELV missions.

Therefore, pricing of the Atlas V has varied greatly over the years, with a basic Atlas V (no boosters and a single-engine second stage) costing anywhere from the high-$90 million to low-$100 million USD range in the 2000s and early 2010s.

Sweeping price and cost-per-launch figure reductions have occurred since SpaceX began directly competing against ULA in the 2010s.

A basic Atlas V in 2020 now has a base price of just $73 million USD because of competition.

But while not the cheapest rocket on the U.S. market, the Atlas V’s safety and success are unparalleled.

Atlas V has a 100% mission success rating across its 83 missions to date. It is also the most-flown, currently active rocket in the U.S. fleet.

Atlas V 541

ULA's Atlas V rocket
ULA’s Atlas V rocket (Image Credit: ULA)

This mission will use the Atlas V 541 variant – with a five-meter payload fairing, four side-mounted solid rocket boosters, and a single engine Centaur upper stage.

Of its flights to date, the Atlas V 541’s most prominent was on November 26, 2011, when it launched NASA’s Curiosity rover same basic design as Perseverance to Mars.

Height: 191 ft

Daimeter: 12.5 ft

Mass: 590,00 kg

Stages: 2

Payload Capacity

  • 8,250 – 20,520 kg to LEO
  • 4,750 – 8,900 kg to GTO

Launch History

  • Total launches: 83
  • Success: 82
  • Failure: 1


  • Height: 17.0 m
  • Diameter: 1.6 m
  • No.of boosters: 0 to 5
  • Gross mass: 46,697 kg
  • Propellant mass: 42,630 kg
  • Total thrust: 1,688.4 kN
  • Burn time: 94 seconds
  • Fuel: HTPB

First Stage

  • Height: 106.5 ft
  • Diameter: 12.5 ft
  • Empty mass: 21,054 kg
  • Propellant mass: 284,089 kg
  • Engine: 1 RD-180
  • Total thrust: sea-level-3,827 kN, space-4,152 kN
  • Burn time: 253 seconds
  • Fuel: RP-1/LOX

Second Stage

  • Height: 41.6 ft
  • Diameter: 10 ft
  • Empty mass: 2,316 kg
  • Propellant mass: 20,830 kg
  • Engines: 1 x RL10A
  • Thrust: 99.2 kN
  • Burn Time: 842 seconds
  • Fuel: LH2 / LOX

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