How we protected the UK and space in July 2025

20th August 2025

July saw reduced levels of space activity with both uncontrolled re-entry and collision alerts at levels below the 12-month rolling average.

All NSpOC warning and protection services functioned as expected throughout the period.

Re-entry Analysis
July saw a 5% decrease in the number of objects re-entering Earth's atmosphere, tracked by NSpOC, when compared with the previous month.

Of the 52 objects that re-entered, 39 were satellites, 11 were rocket bodies and 2 were likely pieces of debris.

Re-entries
August: 89, September: 50, October: 35, November: 47, December: 83, January: 115, February: 129, March: 85, April: 92, May: 64, June: 55, July: 52

In-Space Collision Avoidance
Collision risks to UK-licensed satellites were lower in July with a 18% decline when compared with June, caused by fewer interactions between UK-licensed objects and other spacecraft or debris over the previous 30 days.

Collision risks
August: 2,137, September: 3,041, October: 3,181, November: 2,722, December: 2,142, January: 2,694, February: 2,567, March: 2,588, April: 2,620, May: 1,546, June: 1,259, July: 1,038

Registered space objects in orbit
August: 29,669, September: 29,649, October: 29,657, November: 29,816, December: 29,867, January: 29,996, February: 30,027, March: 30,124, April: 30,253, May: 30,504, June: 30,739, July: 31,038

The number of Resident Space Objects (RSOs) reported may be subject to small adjustments over time as the way objects are tracked is refined. Figures in this report reflect the most current available data and may differ slightly from those published in previous months.

Fragmentation Analysis
There have been no new fragmentation (break-up) incidents this month.

Space weather
July saw a significant reduction space weather activity compared to the previous month.

See the graphs at
https://www.gov.uk/government/news/how-we-protected-the-uk-and-space-in-july-2025