This report was issued in December 2025 and covers the time period 1 November 2025 to 30 November 2025 inclusive.
November saw sustained levels of space activity with collision and space weather alerts higher than in October, but with fewer uncontrolled re-entries into Earth’s atmosphere.
All NSpOC warning and protection services were functioning throughout the period.
Re-entry analysis
November saw a 20% decrease in the number of objects re-entering Earth’s atmosphere, monitored by NSpOC, when compared with the previous month.
Of the 43 objects that re-entered, 34 were satellites and 9 were rocket bodies.
December: 83, January: 115, February: 129, March: 85, April: 92, May: 64, June: 55, July: 52, August: 34, September: 39, October: 54, November: 43
Collision avoidance analysis
Collision risks to UK-licensed satellites were slightly higher in November with a 3% increase when compared with October, caused by more interactions between UK-licensed objects and other spacecraft or debris over the previous 30 days.
December: 2,142, January: 2,694, February: 2,567, March: 2,588, April: 2,620, May: 1,546, June: 1,259, July: 1,038, August: 971, September: 1,537, October: 2,402, November: 2,472
Registered Space Objects (RSOs) analysis
The in-orbit population increased in November, with a net addition of 246 objects to the US Satellite Catalogue.
December: 29,927, January: 30,055, February: 30,085, March: 30,179, April: 30,307, May: 30,556, June: 30,881, July: 31,090, August: 31,344, September, 31,634, October: 31,931, November: 32,177
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 analysis
Space weather activity was elevated in November with geomagnetic storms, solar radiation storms and solar flares registered throughout the month.
