When defunct German satellite ROSAT crashed into the Earth, its project re-entry path included several countries in Southeast Asia. However until now, no reports have been received where exactly ROSAT fell.

U.S. military data calculated that ROSAT's debris must have landed somewhere east of Sri Lanka over the Indian Ocean, or over the Andaman Sea off the coast of Myanmar, or further inland in Myanmar or as far as China.

Meanwhile, a U.S. scientist said the satellite could have crashed somewhere in Southeast Asia on Sunday. Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, said two Chinese cities with millions of inhabitants each, Chongqing and Chengdu, had been in the satellite's projected path during its re-entry time.

But there were no immediate reports from Asian governments about the fallen satellite. The German space agency said they are waiting for data from scientific partners around the globe.

ROSAT entered the atmosphere between 0145 GMT to 0215 GMT Sunday (9:45 pm to 10:45 p.m. Saturday EDT, the agency said.

German space agency spokesman Andreas Schuetz said predicting the exact location of the crash site was difficult as ROSAT used to circle the planet in abut 90 minutes and it may have traveled several thousand kilometers during its re-entry.

A falling satellite also can change its flight pattern or even its direction once it sinks to within 90 miles (150 kilometers) above the Earth, Schuetz added.

Most parts of the 2.4 metric ton ROSAT research satellite were expected to burn up as they hit the atmosphere, but up to 30 fragments weighing a total of 1.87 tons (1.7 metric tons) could have crashed, the German Aerospace Center said.

The ROSAT satellite was launched in Cape Canaveral, Florida, in 1990 and retired in 1999 after being used for research on black holes and neutron stars and performing the first all-sky survey of X-ray sources with an imaging telescope.