[Joe Matt]

Originally Posted by dlavery

Just a few quick data points:

- all we know so far is that the neither the drogue or main parachutes deployed, and it appears that the deployment mortar never fired to push the parachutes out of the spacecraft. We do not yet know why the mortar did not fire.

- the parachutes were designed to slow the spacecraft to a descent rate of approximately 9mph. The spacecraft design was capable of protecting the sample cannister if the spacecraft impacted the surface at this speed. However, to minimize the potential for damage, the primary recovery plan was to perform an "aerial snatch" during the descent in which the parachutes would be snagged by a hook suspended from a helicopter, and then slowly lowered to the ground.
- during the descent, as the spacecraft comes into camera range it is precessing noticably. This motion degrades into a flat spin by the time of impact.

- the spacecraft hit the ground at about 190mph, and broke open on impact. A large impact crater is evident at the site. The exterior backshell is has been severely fractured, and the interior of the spacecraft is exposed.

- it is unknown at this time if the sample cannister has been breached. If the samples have been exposed to the atmosphere they will be highly contaminated. In that event, it is likely that all sceince wll be lost.

More to come...

-dave

My teacher would love to hear this dave, thanks again for the inside scoop.