How much space debris is in orbit?

Three counts, three answers

Ask three sources how much debris is in orbit and you get three numbers. GCAT, the catalogue behind this site, lists 34,337 objects in Earth orbit as of October 17, 2026, of which 14,267 aren't working payloads. NASA's Orbital Debris Program Office says more than 34,000 objects larger than about 10 centimetres are tracked. ESA's Space Environment Report 2025 puts the number of objects tracked by space surveillance networks at about 40,000. None of these contradicts the others. They count different things, from different tracking networks, at different dates. And all of them miss the pieces too small to track. NASA estimates about 100 million fragments of a millimetre or larger.

How long it stays up

Altitude decides everything. NASA's debris office says objects below about 600 kilometers come down within years, those near 800 kilometers can stay for centuries, and above 1,000 kilometers they can stay for a thousand years or more. A fragment made at the wrong height is a problem for generations.

What's up there

• Payloads20,070 (58.5%)
• Rocket bodies2,111 (6.1%)
• Debris10,698 (31.2%)
• Components1,458 (4.2%)

Only objects big enough to be tracked are counted. There are many more fragments too small to catalogue.

How the total has changed

At the end of 1990 the catalogue held 12,330 objects in Earth orbit. At the end of 2025 it held 31,661.

All tracked objectsDebris, rocket bodies and components

Data table

Objects in Earth orbit at year end

Year	Payloads	Rocket bodies	Debris	Components	Total
1990	1,916	1,060	8,015	1,339	12,330
1991	1,954	1,089	8,255	1,282	12,580
1992	1,993	1,135	8,549	1,285	12,962
1993	2,042	1,177	10,359	1,299	14,877
1994	2,137	1,225	11,305	1,343	16,010
1995	2,212	1,259	11,519	1,349	16,339
1996	2,281	1,300	11,412	1,365	16,358
1997	2,401	1,342	11,897	1,354	16,994
1998	2,522	1,360	11,731	1,337	16,950
1999	2,616	1,373	15,321	1,303	20,613
2000	2,692	1,386	15,550	1,335	20,963
2001	2,710	1,387	15,708	1,263	21,068
2002	2,753	1,386	15,542	1,254	20,935
2003	2,817	1,409	15,369	1,277	20,872
2004	2,870	1,424	15,281	1,316	20,891
2005	2,914	1,440	15,173	1,312	20,839
2006	2,984	1,472	15,910	1,348	21,714
2007	3,072	1,503	15,898	1,396	21,869
2008	3,149	1,537	15,352	1,420	21,458
2009	3,242	1,572	15,271	1,450	21,535
2010	3,317	1,607	15,089	1,484	21,497
2011	3,402	1,634	14,985	1,531	21,552
2012	3,501	1,659	14,837	1,543	21,540
2013	3,665	1,690	14,578	1,582	21,515
2014	3,831	1,721	14,265	1,594	21,411
2015	3,976	1,758	13,972	1,603	21,309
2016	4,118	1,790	13,903	1,609	21,420
2017	4,507	1,823	13,823	1,621	21,774
2018	4,954	1,887	14,068	1,659	22,568
2019	5,263	1,917	14,103	1,658	22,941
2020	6,389	1,941	13,937	1,675	23,942
2021	8,025	1,973	13,716	1,687	25,401
2022	10,086	2,024	12,709	1,659	26,478
2023	12,259	2,044	11,612	1,593	27,508
2024	13,948	2,049	11,423	1,505	28,925
2025	17,304	2,082	10,796	1,479	31,661

Whose rocket bodies and debris

The countries responsible for most of the rocket bodies, debris and components in orbit.

• United States4,610 (32.3%)
• China4,329 (30.3%)
• Russia2,681 (18.8%)
• Soviet Union1,811 (12.7%)
• France455 (3.2%)

Where it orbits

• Upper low Earth orbit (600 to 2,000 km)10,483 (73.5%)
• Highly elliptical orbit951 (6.7%)
• Medium Earth orbit919 (6.4%)
• Lower low Earth orbit (80 to 600 km)712 (5.0%)

Four events that made the cloud

In 2007 China destroyed its Fengyun-1C weather satellite in a missile test at 850 to 882 kilometers, creating more than 3,000 tracked pieces. On February 10, 2009 two satellites, Iridium 33 and Cosmos 2251, collided at 11.7 kilometers a second and produced more than 2,000 large fragments. India's 2019 test, covered on the 2019 page, made about 400 pieces, according to NASA's administrator. Russia's test on November 15, 2021 destroyed Kosmos 1408 at about 450 kilometers and left more than 1,500 trackable pieces. The 2021 page covers the crew's reaction.

What our chart shows and what it doesn't

The year-end chart above counts payloads, rocket bodies, debris and components. Payloads rose from 2,692 in 2000 to 17,304 in 2025, and rocket bodies from 1,386 to 2,082. The debris category went the other way, from 15,550 to 10,796. Old fragments fall back to Earth, and the category doesn't step up in the years of the big breakups: it was 15,910 at the end of 2006 and 15,898 at the end of 2007. We can't say from the catalogue alone why it stays flat. It's a reminder that a count of what's catalogued isn't a count of what's up there.

Whose rocket bodies and debris

The United States has 4,610 rocket bodies, debris pieces and components attributed to it, China 4,329 and Russia 2,681. The Soviet Union adds 1,811, so the Soviet and Russian total is 4,492. France is next with 455. These are the countries that have launched the most, not necessarily the ones that left the most behind. The China page gives the other side of China's total.

Since 1990

At the end of 1990 the catalogue held 12,330 objects. The data date total of 34,337 is 2.8 times that. Rocket bodies went from 1,060 to 2,111, debris from 8,015 to 10,698 and payloads from 1,916 to 20,070. Payloads grew by far the most.

Five years of growth

Between the end of 2020 and the end of 2025 the catalogue added 7,719 objects, from 23,942 to 31,661. Payloads rose by 10,915, which is more than the net increase because the debris category fell by 3,141 over the same years. Rocket bodies rose by 141. Between the end of 2025 and the data date the total rose again, to 34,337.

A catalogue isn't a census

The 20,070 payloads include 2,969 that are no longer active, since 17,101 are listed as active. Those are 15% of all payloads, and a dead satellite is still an object in orbit. The top five owners of rocket bodies, debris and components, counting the Soviet Union separately, hold 13,886 of the 14,267 objects that aren't payloads, or 97%. Compare the 10,698 catalogued pieces of debris with NASA's estimate of about 100 million fragments a millimetre or bigger. The catalogue holds roughly one piece of debris for every 9,300 fragments NASA estimates. Most of that mass of small fragments can't be tracked and can still damage a spacecraft, which is why shielding is part of satellite design.

The mix has flipped

In 2000, payloads were 13% of the objects in the catalogue and debris 74%. By 2025 payloads were 55% and debris 34%. The total grew from 20,963 to 31,661, and nearly all the growth is working satellites, not fragments. That's a different problem from the one the breakup events created: more objects that must be steered around, rather than more pieces of unknown origin.

Rules and what to watch

Donald Kessler warned in 1978 that collisions could cascade, with each breakup creating the fragments for the next. Guidelines adopted in 2001 in the United States and 2002 at ESA ask operators to remove low-orbit satellites within 25 years of the end of their mission. Starlink matters here. GCAT puts all 11,137 active Starlink satellites in the lowest orbit band, below 600 kilometers, and 1,908 Starlink satellites have already come down, which is the altitude effect in action. The count to watch is how the total in the next update compares with 34,337, and how many of the new satellites are low enough to leave quickly. The Starlink page has the constellation figures.