Author Topic: LIVE: STS-120 Flight Day 8 - EVA-3 and P5/P6 Events (Read 120705 times)

Chris Bergin · « **Reply #400 on:** 10/30/2007 03:26 pm »

Ooooo, that's not good. That's the last thing we need.

vt_hokie · « **Reply #401 on:** 10/30/2007 03:26 pm »

Yikes, that's ugly!

ShuttleDiscovery · « **Reply #402 on:** 10/30/2007 03:27 pm »

I just tuned in to NASA TV and I was gobsmacked!

Chandonn · « **Reply #403 on:** 10/30/2007 03:27 pm »

As I understand it, blanket boxes are ORUs. This should be replaceable.

psloss · « **Reply #404 on:** 10/30/2007 03:28 pm »

Current bay count is 25...

ckiki lwai · « **Reply #405 on:** 10/30/2007 03:28 pm »

But it seems the sides are still there, but you cant see them right?

nathan.moeller · « **Reply #406 on:** 10/30/2007 03:28 pm »

Ouch! Bummer!!

brahmanknight · « **Reply #407 on:** 10/30/2007 03:28 pm »

I can't even fathom how that could happen.

Felix · « **Reply #408 on:** 10/30/2007 03:28 pm »

bay count is 25 bays

ApolloLee · « **Reply #409 on:** 10/30/2007 03:28 pm »

We're going to have a couple of snap judgments here and quick speculation, though I figure the big minds will figure this out...

That said, can the panels still provide some power with a break like this or does this hurt the entiere system...

And another quick assesment... Is there a backup array in the wings if need be (My initial thought is no....)

sts1canada · « **Reply #410 on:** 10/30/2007 03:28 pm »

10 minutes to East handover, 43 minutes to sunset.

25 bays deployed, 6 left to go before this problem appeared.

Richard

pechisbeque · « **Reply #411 on:** 10/30/2007 03:29 pm »

Oh no....

DaveS · « **Reply #412 on:** 10/30/2007 03:31 pm »

Quote

ApolloLee - 30/10/2007 5:28 PM
And another quick assesment... Is there a backup array in the wings if need be (My initial thought is no....)

No. And it would a long and very complicated EVA to R&R a half-extended solar array blanket.

ckiki lwai · « **Reply #413 on:** 10/30/2007 03:31 pm »

pechisbeque · « **Reply #414 on:** 10/30/2007 03:31 pm »

It looks like one of the guidewires just snapped!

MKremer · « **Reply #415 on:** 10/30/2007 03:31 pm »

Wonder if they got bit by a wire fray getting caught.

ApolloLee · « **Reply #416 on:** 10/30/2007 03:32 pm »

Quote

Chandonn - 30/10/2007 9:27 AM

As I understand it, blanket boxes are ORUs. This should be replaceable.

So conceivably, it should be a matter of removing the blanket box and presumably safely releasing a la the Hubble and replacing with a new unit, if one exists?

ShuttleDiscovery · « **Reply #417 on:** 10/30/2007 03:32 pm »

Quote

ApolloLee - 30/10/2007 5:28 PM

That said, can the panels still provide some power with a break like this or does this hurt the entiere system...

Yes. Well it has been in orbiot fully deployed for over half a decade so even with minor MMOD hits it can still generate power...but this is much bigger

dawei · « **Reply #418 on:** 10/30/2007 03:33 pm »

Is the array structurally stable when not fully deployed? How about electrical connectivity?

sts1canada · « **Reply #419 on:** 10/30/2007 03:33 pm »

It appears one of the guide wires that is frayed has hung up on something and tore the array a little as it flipped back on something.

Richard