Progress M1-6, identified by NASA

NASA

The National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research...

 as Progress 4 or 4P, was a Progress spacecraft used to resupply the International Space Station

International Space Station

The International Space Station is a habitable, artificial satellite in low Earth orbit. The ISS follows the Salyut, Almaz, Cosmos, Skylab, and Mir space stations, as the 11th space station launched, not including the Genesis I and II prototypes...

. It was a Progress-M1

Progress-M1

Progress-M1 , also known as Progress 7K-TGM1, is a Russian spacecraft which is used to resupply space stations. It is a variant of the Progress spacecraft, derived from the Progress-M, but modified to carry more propellent for refuelling the space station instead of other cargoes such as water...

 11F615A55 spacecraft, with the serial number

Serial number

A serial number is a unique number assigned for identification which varies from its successor or predecessor by a fixed discrete integer value...

 255.

Progress M1-6 was launched on the maiden flight

Maiden flight

The maiden flight of an aircraft is the first occasion on which an aircraft leaves the ground of its own accord. This is similar to a ship's maiden voyage....

 of the Soyuz-FG

Soyuz-FG

The Soyuz-FG launch vehicle is an improved version of the Soyuz-U, from the R-7 family of rockets, designed and constructed by TsSKB-Progress in Samara...

 carrier rocket, flying from Site 1/5

Gagarin's Start

Gagarin's Start is a launch site at Baikonur Cosmodrome in Kazakhstan, used for the Soviet space program and now managed by the Russian Federal Space Agency....

 at the Baikonur Cosmodrome

Baikonur Cosmodrome

The Baikonur Cosmodrome , also called Tyuratam, is the world's first and largest operational space launch facility. It is located in the desert steppe of Kazakhstan, about east of the Aral Sea, north of the Syr Darya river, near Tyuratam railway station, at 90 meters above sea level...

. Launch occurred at 22:32:40 GMT on 20 May 2001. The spacecraft docked with the Aft port of the Zvezda module at 00:23:57 GMT on 23 May. It remained docked for three months before undocking at 06:02 GMT on 22 August to make way for Progress M-45

Progress M-45

Progress M-45, identified by NASA as Progress 5 or 5P, was a Progress spacecraft used to resupply the International Space Station. It was a Progress-M 11F615A55 spacecraft, with the serial number 245....

. It was deorbited at 09:00 GMT on the same day, burning up in the atmosphere over the Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

, with any remaining debris landing in the ocean at around 09:50 GMT.

Progress M1-6 carried supplies to the International Space Station, including food, water and oxygen for the crew and equipment for conducting scientific research.