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by johnwalkr 1662 days ago
Right, in design shock and vibration are basically 2 separately requirements, analyzed and tested separately. Sometimes by analysis it is shown that vibration test levels "cover" the shock requirement, but a spacecraft that is the first of its type, and with many mechanisms is likely to undergo discrete shock testing.

Minor addition to your reply, design typically avoids similar natural frequencies to the launcher, but the design needs to be compatible with the loads resulting from vibration as

It sounds like the clamp band was accidentally released just after installation, thankfully in a position that didn't drop the spacecraft somehow. The input shock is more like 1000G for these things, usually the largest source of shock for a spacecraft. Of course, it's designed to be released by the same mechanism, although it would not be designed to be released an unlimited number of times. I would guess they already know the components which are critical for shock, and will inspect and/or function test those before proceeding. Since it was an unplanned event, even documenting that it happened and getting everyone to agree to proceed based on the spacecraft having been designed for that input shock, takes at least a few days.

It does not sound like a larger than design shock was somehow applied and they have to check everything at spacecraft level analysis. That would take at least several weeks.