NASA: Top 10 Space Junk Missions (networkworld.com)

coondoggie writes: NASA' s Orbital Debris Program Office said that by far the source of the greatest amount of orbital debris remains the Fengyun-1C spacecraft, which was the target of a People's Republic of China anti-satellite test in January 2007. Much more debris is now floating around Earth's atmosphere since the six years NASA last looked at the top 10 space junk missions. The space agency says that 10 missions out of the 5,160 space missions that have launched since 1957 account for approximately one-third of all cataloged objects now in Earth orbit. NASA said that the second and fourth most significant satellite breakups are Cosmos 2251 and Iridium 33 spacecraft, which were involved in the first ever accidental satellite collision February 2009.

Comments

Like the message the US send in 1985?

[thesupraman]

Perhaps similar to the time in 1985 when America used ITS ASAT missile to hit the P78-1 SOLWIND satellite, resulting in a need for additional anti-collision design for the ISS?

FWIW the FY1C was 750kg, the SOLWIND was 850kg.. so they should have had rather similar debris clouds..

Or, perhaps it is somehow different? After all, when the US did it, no one else had... Perhaps being first makes it better?

Re: Like the message the US send in 1985?

[WindBourne]

Quite the difference though. China's sat was destroyed at 530 miles up, and created over 2000 trackable sized items ( with more than 150,000 debris item). Assuming no cleanup by China, then in 100 years there will still be debris.
OTOH, solwind was shot at 326 miles up, and created 285 trackable parts. All of that was gone by 2008.
Quite the difference. Also if you think that iss put up shielding due to solwnd, then you are kidding yourself. Plenty of other junk up there.