Primary payload customers have traditionally been cautious when allowing secondary payloads on the same launcher. For example, a secondary payload is not trusted to have its own chemical propulsion system since it would be explosive.

But how often have secondary payloads caused its primary payload to fail? What are some examples of this happening, or being a strongly suspected cause of failure?

  • 1
    $\begingroup$ To my knowledge it has never happened. But I don't have documentation for it, which is why I'm not putting it down as an answer. $\endgroup$ – Carlos N Jun 10 '18 at 9:38
  • $\begingroup$ i side with Carlos N, while i am yet see an instance where the secondary payload has caused contamination with the primary payload, i guess the guidelines are in place to reduce the risk and for striking up lower insurance figures for the payload and the launch. $\endgroup$ – Amongdastarz Nov 20 '18 at 9:26

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