Workers snap the miniature rocket's wings into place as Indonesia's little-known space agency readies its latest launch on barren scrubland in East Java.
With a 3,2,1 blast off, the two-metre-long projectile belches a trail of fire and then soars a few hundred metres before crashing in a heap - earning a thumbs up from scientists who declared the test a success.
It's a long way from a Mission Control in Houston, but the Southeast Asian archipelago's answer to NASA has big hopes and is now planning to build its first spaceport on a tropical island off the coast of easternmost Papua.
"We've got a dream to put our own sounding rocket into space within five years," said Lilis Mariani, a senior official for the Rocket Technology Centre at the National Institute of Aeronautics and Space, known as Lapan.
A sounding rocket has instruments to take measurements and carry out experiments during flight.
"It would be good for atmospheric research in agriculture and forestry," she added.
Some experts question how realistic Indonesia's ambitions are, and officials acknowledge much will depend on whether Jakarta stumps up the necessary funds. There is resurgent international interest in space travel and colonisation, with NASA planning to send two astronauts to the moon by 2024, some 55 years after their last mission there. The Trump administration has pledged to increase funding for the project and is also making plans for travel to Mars. SpaceX, a private US firm launched by Tesla chief Elon Musk, has said its first crewed flight will launch in the first half of this year, while Virgin Galactic plans a series of missions in the next three years.
Indonesia's space agency is a relative minnow, dwarfed in Asia by counterparts in Japan, China and India.
Lapan has had some success with developing research satellite technology, but it wants to make its mark in space flight by sending a homegrown rocket into orbit.
Back at the launch site on East Java, Lapan's scientists were gauging the tiny test rocket's speed, movement and other specifications.
"It was stable on take off and moved well," said Sri Kilawati, head of the Centre's rocket control programme.
"The objective was to study rocket control. They travel at a very high rate of speed so you've got to observe their behaviour," she added.
Achieving a real life launch could require a giant leap, however.
"Lapan is still far behind in terms of launch technology, although it has been quite successful in developing satellites," said Lavi Zuhal, head of aerospace engineering at Indonesia's Bandung Institute of Technology.
"The engineers at Lapan haven't fully mastered rocket technology yet."
Kilawati acknowledged that reaching Indonesia's ambitions for a state-of-the-art launch centre isn't just about technological prowess.
"Funding comes from state coffers so it depends a lot on the government's priorities," she said.
Still, the East Java rocket test underlined Indonesia was pushing toward the orbital launch goal, said Leena Pivovarova, an analyst at US-based Northern Sky Research. "In the grand scheme of rocket development you can think of this as a step in the right direction," she said. "This is toward a larger purpose of achieving orbital launch capability."
Indonesia's space aspirations began in the early sixties with the creation of Lapan and it was one of the first developing nations to have communications satellites launched into space by the United States, where they were made.
It planned to send an astronaut into space with NASA, but the bid was shelved in the wake of the 1986 Space Shuttle Challenger crash and no other opportunities have come to pass. But now Lapan is now talking to its Russia counterpart about sending one of its astronauts on a future mission - though there are few concrete details so far.
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