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Daily Archives: October 28, 2020

Space Debris by the Numbers

The latest figures related to space debris, provided by ESA’s Space Debris Office at ESOC, Darmstadt, Germany.

Information correct as of February 2020:

Number of rocket launches since the start of the space age in 1957:

About 5560 (excluding failures)

Number of satellites these rocket launches have placed into Earth orbit:

About 9600

Number of these still in space:

About 5500

Number of these still functioning:

About 2300

Number of debris objects regularly tracked by Space Surveillance Networks and maintained in their catalogue:

About 22 300

Estimated number of break-ups, explosions, collisions, or anomalous events resulting in fragmentation:

More than 500

Total mass of all space objects in Earth orbit:

More than 8800 tonnes

Number of debris objects estimated by statistical models to be in orbit:

  • 34 000 objects >10 cm
  • 900 000 objects from greater than 1 cm to 10 cm
  • 128 million objects from greater than 1 mm to 1 cm



Source : The European Space Agency

Baby Boomer Wealth Led the U.S. Generational Wealth

Source : Bloomberg

Hong Kong Monetary Authority Aggregate Balance Hit Record High

Source : Bloomberg and Trading Economics


Read also at Reuters:

Hong Kong liquidity to hit record high ahead of Ant IPO . . . . .