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good morning and welcome to today's

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mission status briefing

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with us are gary horlocker the sts-134

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lead flight director who's just coming

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off his orbit one shift his final shift

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of the mission and heather henkel henklo

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the principal investigator of the storm

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test which was concluded today

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gary would you begin please

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sure thank you very much good morning

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everyone it's really great to be here um

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absolutely outstanding day today so far

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um i think that probably the word i'd

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use to sum it up is pretty much flawless

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we

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obviously undocked today from the space

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station

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pretty much undocked right on time and

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as we talked yesterday uh the pilot greg

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johnson was at the controls he backed

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endeavor away from the station out to

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about 400 feet

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and then he initiated the full lap fly

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around and uh

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so we did the fly around got our

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standard photos of the entire outside of

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the space station we also

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took a few photos specific photos of the

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atv vehicle as requested by our

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colleagues across the atlantic ocean

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and uh

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once that fly around was complete the

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crew started the

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storm trajectory take care of the storm

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dto for today

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um

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all those burns went perfectly as

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planned uh the trajectory was was right

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on the money

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and

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everything just went really really well

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and and heather's gonna give you more

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details about how the the sensor

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performance went so so we can

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hang on to that for a few minutes um

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so we got all that accomplished and uh

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so once we we got outside the range of

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the sensors we started shifting gears

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towards uh thinking about coming home

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the crew got right into the uh the water

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dumps that we always have right after we

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get undocked and those were in progress

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as i left the control center

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then they'll be also working on getting

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the cabin in the right configuration and

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start configuring the ship

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as a reentry vehicle so

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so like i said things so far went really

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really great today

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we did have one little distraction

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during the storm trajectory shortly

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after step two

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uh the crew got a fuel cell message on

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board

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fuel cell dealt a volt message

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and

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so basically the the orbiter has three

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fuel cells that's how we generate power

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for the for the entire vehicle and uh

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each of those fuel cells has 96 cells

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within it and those are broken down into

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three separate sub stacks so there's 32

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cells within a substack

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and and the fuel cell has a cell

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performance monitor attached to it and

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with this it's a very small black

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electronic box strictly to monitor the

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performance of the fuel cell

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and it basically takes each of those sub

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stacks and and looks at half of it

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16 cells at a time

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so it compares the the voltage across

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both of those halves of the the stack of

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16 cells each

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and so ideally you want that you expect

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that voltage

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delta volts between the two halves to be

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zero in an ideal world but obviously you

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know it's gonna be very small number in

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in the real world

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and uh if that delta delta volt

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value

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uh

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climbs to a certain point it starts it's

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an indication that the fuel cell's

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degrading and you're starting to have

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some issues with the fuel cells so

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that's that's basically the the purpose

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of the cell performance monitor the cpm

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box

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so it exceeded that that limit it

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performs that test every seven and a

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half minutes um it exceeded that limit

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trip the message crew got it we we were

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looking at the fuel cell performance in

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real time

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had no other indications of any problems

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fuel cell was performing great

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so we just kept an eye on it next time

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it ran the self-test it

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turned out nominal

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and so basically it was kind of

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intermittent throughout the storm

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trajectory

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i think we had seven

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seven self-test failures throughout the

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last few hours

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and then in between each each of the

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other self-tests were just just nominal

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so

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indication that we're seeing but again

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the the fuel cell is performing

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absolutely perfectly the way it has all

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flight we have no concerns about about

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its actual performance we think it's

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really just an issue with this

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performance monitor box so

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it's very similar to a signature we saw

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on sts-130 last time endeavour flew

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it was actually a indication on a

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different sub stack in the same fuel

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cell and after that flight they replaced

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this

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cpm box a performance monitoring box so

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so it's very interesting but again the

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fuel cell looks like it's it's working

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fine so the team's going to be you know

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continuing to watch it and talking about

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it throughout the day so

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i think that's really all i got to add

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i'll hand it over to heather to give you

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the details on how the storm activity

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went today

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thanks gary

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the storm team had a great night tonight

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we were able to get vns data throughout

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the entire undock re-rendezvous and

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final separation trajectory the software

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performed flawlessly drew feu still put

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us into all the right

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modes right on schedule we had no

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anomalies and we're real excited about

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getting a lot more vns data

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we've accumulated throughout rendezvous

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and including today nearly 600 gigabytes

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of data so we have a lot of good data

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analysis days coming ahead of us once we

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get the boxes off the vehicle in florida

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and the team will start working together

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to analyze all that data

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so from a ground perspective during real

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time we get to see data over the

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sequential still video so we don't get

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all the detailed data that i showed

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yesterday which had

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some

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i guess

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detailed plots of some of the

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performance of the vns so what we get to

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see is one snap every 30 seconds versus

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the

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laser is actually firing

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and we do calculate a range estimate

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based on that and that looked really

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great we compared it against tcs in

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close and out further against the

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shuttle state vector and that matched

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really well we're very happy with what

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we saw it looks again like we've

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exceeded our five kilometer

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goal so that was very exciting

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we were lots of smiles and cheers we had

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nice words from drew at the end of the

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mission

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and the storm team has done phenomenally

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we were throwing a curveball the other

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day with our

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docking camera data recorder did not

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come up today as we were all kind of

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crossing our fingers it might initialize

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correctly so there was no new docking

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camera data to to collect today

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but we did get our primary objective on

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the orion mpcv like trajectory for the

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re-rendezvous is flown exactly per

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design

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and we believe we will have met

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those objectives we do have all the

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docking camera data collected from

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rendezvous safely stored on the data

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recorders so that should be no problem

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when we get it back

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and i'd just like to thank the wonderful

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storm team

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from johnson space center from langley

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research center from ball aerospace and

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from lockheed martin is a fantastic

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group of folks a lot of talent and a

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pleasure to have worked with everybody

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for the last few years

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thank you heather thanks gary we'll

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start with questions now first here in

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houston if you'd step to the microphone

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once you recognize please remember to

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say your name and your affiliation

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phillips loss with nasaspaceflight.com

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how were you able to how far out were

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you able to maintain a lock on the

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station

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going out and then coming back

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so again it's a little difficult to tell

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especially on the way out it happens to

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be a part of space station that has no

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visible reflectors on there so data was

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showing that that the laser was likely

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shooting and timing out for most of that

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area but again we are only getting one

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frame every 30 seconds and once we get

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all the data back on the ground we'll

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have the 30 hertz data and we believe

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we'll see some intermittent

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acquisition of the space station during

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that time but without any visible

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reflectors when you start getting out at

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ranges that far

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we'll have to kind of see what happened

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with it and how it performed

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again one of our objectives for the vns

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getting flown is what is the

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reflectivity of the space station like

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in this wavelength

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versus

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when you do and do not have reflectors

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visible in the field of view

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i'll just go and add to that you know

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the outbound trajectory was really

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designed to set up the inbound

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trajectory to meet their prime objective

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and uh you know of course station

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did reconfigure to to get some power

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generation during that time frame as

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well so wasn't optimized for the uh

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the storm reflectors for that phase so

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and then on uh

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when do you expect to get your data and

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and your hardware back oh yeah so we've

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kind of been told by ksc return to

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florida plus

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about a week we will get to get back in

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the vehicle and perform a post-flight um

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test we'll just fire everything up and

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do a return to earth great just like we

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expected to then we'll get the

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the sensors and the data recorder

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package will get moved over to another

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facility at ksc and that will start our

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data retrieval if we pulled 24 hours a

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day we would get everything off in six

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days

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so then we'll have that

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600 gigabytes of data passed on to all

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additional questions robert

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uh robert promlin with collectspace.com

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um to follow up on that question for

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heather uh what's the end product what

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do you um what do you have at the end of

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all the um

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after all the analysis is done

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is it an animation of the approach

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individual stills what's what are we

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going to see

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when everything's ready

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so i think we'll see all of that

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and from a usability of all of that what

285
00:10:18,389 --> 00:10:16,480
will happen is the orion mpcv program

286
00:10:21,030 --> 00:10:18,399
will take in all of this data and

287
00:10:22,949 --> 00:10:21,040
utilize the lessons learned the actual

288
00:10:25,509 --> 00:10:22,959
performance we saw for space station to

289
00:10:28,230 --> 00:10:25,519
update any of the models of the vns that

290
00:10:29,829 --> 00:10:28,240
they use on the ground with those models

291
00:10:31,269 --> 00:10:29,839
that they feed into the relative nav

292
00:10:33,269 --> 00:10:31,279
system and then into the overall

293
00:10:35,670 --> 00:10:33,279
guidance navigation and control they'll

294
00:10:38,389 --> 00:10:35,680
be able to very accurately design around

295
00:10:40,069 --> 00:10:38,399
that for performance of the vehicle for

296
00:10:41,430 --> 00:10:40,079
all their mission planning

297
00:10:46,710 --> 00:10:41,440
and

298
00:10:48,310 --> 00:10:46,720
the docking camera perspective uh the

299
00:10:51,190 --> 00:10:48,320
situational awareness that the crew will

300
00:10:52,710 --> 00:10:51,200
use for flying out angular misalignments

301
00:10:54,470 --> 00:10:52,720
and such just as the shuttle crew does

302
00:10:57,269 --> 00:10:54,480
today

303
00:10:59,750 --> 00:10:57,279
okay thanks and and for gary um

304
00:11:01,750 --> 00:10:59,760
realizing that the the cpm

305
00:11:04,069 --> 00:11:01,760
intermittent failure is not a huge

306
00:11:07,750 --> 00:11:04,079
concern at this point if it did become

307
00:11:10,230 --> 00:11:07,760
more of a concern what are your options

308
00:11:12,230 --> 00:11:10,240
as opposed to just ignoring it

309
00:11:14,790 --> 00:11:12,240
yeah so the cpm is

310
00:11:17,509 --> 00:11:14,800
in simplicity terms it's just telemetry

311
00:11:19,269 --> 00:11:17,519
on how how those fuel cells performing

312
00:11:20,949 --> 00:11:19,279
so so if that box were to fail

313
00:11:22,550 --> 00:11:20,959
completely you know

314
00:11:23,910 --> 00:11:22,560
what we're also talking about doing is

315
00:11:26,630 --> 00:11:23,920
setting up the

316
00:11:28,949 --> 00:11:26,640
fuel cell monitoring system fcms

317
00:11:31,590 --> 00:11:28,959
and that's basically just a application

318
00:11:34,069 --> 00:11:31,600
on the onboard laptop that ties into the

319
00:11:35,670 --> 00:11:34,079
vehicle data system and it'll give us

320
00:11:37,590 --> 00:11:35,680
the next layer of insight we can go down

321
00:11:38,870 --> 00:11:37,600
and look at the each cell level in the

322
00:11:41,350 --> 00:11:38,880
fuel cell and look at each cell

323
00:11:43,190 --> 00:11:41,360
separately which we can't do

324
00:11:46,150 --> 00:11:43,200
at the cpm level so it would be the next

325
00:11:47,670 --> 00:11:46,160
step in data gathering if you will but

326
00:11:49,910 --> 00:11:47,680
again all the all the data coming from

327
00:11:52,310 --> 00:11:49,920
the fuel cell and that we watch in real

328
00:11:54,230 --> 00:11:52,320
time as it's as it's running is is again

329
00:11:55,509 --> 00:11:54,240
looking great

330
00:11:56,470 --> 00:11:55,519
okay additional questions here in

331
00:11:57,910 --> 00:11:56,480
houston

332
00:11:59,910 --> 00:11:57,920
uh saying none we'll go to the phone

333
00:12:02,550 --> 00:11:59,920
bridge uh marcia

334
00:12:04,310 --> 00:12:02,560
yes hi good morning um gary i have a

335
00:12:06,710 --> 00:12:04,320
couple questions for you the first being

336
00:12:09,110 --> 00:12:06,720
i heard you and mark kelly discussing

337
00:12:10,629 --> 00:12:09,120
potentially windy weather here at

338
00:12:12,710 --> 00:12:10,639
kennedy space center on wednesday

339
00:12:15,430 --> 00:12:12,720
morning could you fill us in on what the

340
00:12:17,269 --> 00:12:15,440
latest weather update might be

341
00:12:19,670 --> 00:12:17,279
sure marcia i know the uh the last

342
00:12:21,670 --> 00:12:19,680
forecast i saw was was pretty old and

343
00:12:23,509 --> 00:12:21,680
and of course you know florida is what

344
00:12:25,190 --> 00:12:23,519
it is until you're just about to either

345
00:12:26,470 --> 00:12:25,200
launch or land there so

346
00:12:29,110 --> 00:12:26,480
you know i'm not too excited about it

347
00:12:31,110 --> 00:12:29,120
yet but the forecast was um

348
00:12:33,030 --> 00:12:31,120
outside the flight roll limits for the

349
00:12:35,110 --> 00:12:33,040
for the cross winds

350
00:12:37,670 --> 00:12:35,120
i know we're looking at the data

351
00:12:39,430 --> 00:12:37,680
actually coming off the runways just an

352
00:12:41,110 --> 00:12:39,440
hour or two ago and it was actually

353
00:12:43,430 --> 00:12:41,120
fairly calm so

354
00:12:45,269 --> 00:12:43,440
um again you know until until we get a

355
00:12:47,350 --> 00:12:45,279
little bit closer i'm not too excited

356
00:12:49,590 --> 00:12:47,360
about that forecast

357
00:12:51,350 --> 00:12:49,600
thank you and could you also reflect for

358
00:12:53,750 --> 00:12:51,360
a moment on the fact that this is

359
00:12:55,430 --> 00:12:53,760
endeavors final journey into space and

360
00:12:58,870 --> 00:12:55,440
that there is only one more shuttle

361
00:13:00,790 --> 00:12:58,880
mission left before it all ends

362
00:13:03,030 --> 00:13:00,800
sure you know

363
00:13:06,069 --> 00:13:03,040
it's a long long time coming uh that

364
00:13:07,430 --> 00:13:06,079
it's been an incredible program

365
00:13:09,750 --> 00:13:07,440
you know i've been focused on making

366
00:13:11,829 --> 00:13:09,760
sure we we get this mission accomplished

367
00:13:14,710 --> 00:13:11,839
as fairly aggressive from the beginning

368
00:13:16,310 --> 00:13:14,720
and uh pretty long mission and and we

369
00:13:17,910 --> 00:13:16,320
we met every objective got everything

370
00:13:19,990 --> 00:13:17,920
accomplished so you know right now i'm

371
00:13:21,910 --> 00:13:20,000
just going to take a deep breath and and

372
00:13:22,790 --> 00:13:21,920
enjoy the fact that uh we've gotten

373
00:13:24,629 --> 00:13:22,800
through the

374
00:13:27,269 --> 00:13:24,639
99 of the mission all we got to do is

375
00:13:28,069 --> 00:13:27,279
get the crew in the ship home now so

376
00:13:29,590 --> 00:13:28,079
um

377
00:13:31,030 --> 00:13:29,600
you know i think it will be bittersweet

378
00:13:33,590 --> 00:13:31,040
seeing it on the runway here hopefully

379
00:13:35,430 --> 00:13:33,600
in two days um and then we got atlantis

380
00:13:36,629 --> 00:13:35,440
rolling out that same night to the

381
00:13:38,389 --> 00:13:36,639
launch pad

382
00:13:40,069 --> 00:13:38,399
and then uh one last flight for the

383
00:13:41,670 --> 00:13:40,079
program so uh

384
00:13:43,269 --> 00:13:41,680
so it's kind of sad to see it ending but

385
00:13:44,790 --> 00:13:43,279
it's uh it's time to move on to the next

386
00:13:47,189 --> 00:13:44,800
chapter

387
00:13:50,550 --> 00:13:47,199
thank you

388
00:13:55,829 --> 00:13:52,870
yeah a quick one for gary i'm just just

389
00:13:57,590 --> 00:13:55,839
based on your nav data how far how far

390
00:13:59,430 --> 00:13:57,600
back did you guys fall off and how far

391
00:14:01,509 --> 00:13:59,440
did you come up before the before it

392
00:14:03,509 --> 00:14:01,519
stalled out

393
00:14:05,590 --> 00:14:03,519
oh the uh trajectory you're asking about

394
00:14:07,670 --> 00:14:05,600
trajectory distance um

395
00:14:09,110 --> 00:14:07,680
i believe we got we got right around 29

396
00:14:11,430 --> 00:14:09,120
000 feet which was what we were

397
00:14:13,350 --> 00:14:11,440
targeting on the outbound uh part of the

398
00:14:15,269 --> 00:14:13,360
trajectory and then um

399
00:14:17,590 --> 00:14:15,279
you know coming up in in close to

400
00:14:20,230 --> 00:14:17,600
station after we did the tpi burn which

401
00:14:22,310 --> 00:14:20,240
puts you uh on target for your your

402
00:14:23,189 --> 00:14:22,320
final point just below the the space

403
00:14:24,870 --> 00:14:23,199
station

404
00:14:26,949 --> 00:14:24,880
targeting a thousand feet below and 300

405
00:14:29,590 --> 00:14:26,959
feet behind

406
00:14:31,990 --> 00:14:29,600
we were we got to about 950 feet from

407
00:14:33,750 --> 00:14:32,000
the space station and uh the trajectory

408
00:14:35,670 --> 00:14:33,760
stalled out crew did not have to do any

409
00:14:37,829 --> 00:14:35,680
braking pulses whatsoever

410
00:14:39,189 --> 00:14:37,839
and uh then we just fell away and did

411
00:14:41,110 --> 00:14:39,199
step three so

412
00:14:42,710 --> 00:14:41,120
again the trajectory was was right on

413
00:14:45,509 --> 00:14:42,720
the money almost the whole way tonight

414
00:14:47,030 --> 00:14:45,519
is it is really really outstanding

415
00:14:48,230 --> 00:14:47,040
and one more quick one for me and maybe

416
00:14:50,629 --> 00:14:48,240
this is for heather what is the

417
00:14:51,829 --> 00:14:50,639
advantage of

418
00:14:54,470 --> 00:14:51,839
i guess what do you call this a coal

419
00:14:56,550 --> 00:14:54,480
elliptic approach versus a an r bar or a

420
00:14:57,990 --> 00:14:56,560
v bar approach what is the advantage of

421
00:14:58,870 --> 00:14:58,000
that if there is one or is it just a

422
00:15:06,069 --> 00:14:58,880
different

423
00:15:08,310 --> 00:15:06,079
things and as a matter of fact

424
00:15:10,710 --> 00:15:08,320
once you're past that either stability

425
00:15:13,509 --> 00:15:10,720
rendezvous like the shuttle performs or

426
00:15:15,670 --> 00:15:13,519
eco elliptic the trajectory beyond that

427
00:15:17,430 --> 00:15:15,680
looks pretty similar as far as flying

428
00:15:19,670 --> 00:15:17,440
around to the v-bar and then approaching

429
00:15:20,870 --> 00:15:19,680
along the positive v-bar to the station

430
00:15:24,829 --> 00:15:20,880
for docking

431
00:15:30,230 --> 00:15:27,910
one you get on a trajectory that's a

432
00:15:32,389 --> 00:15:30,240
delta height below the trajectory of the

433
00:15:35,189 --> 00:15:32,399
space station so you could just kind of

434
00:15:38,230 --> 00:15:35,199
stay in that orbit it's a safe orbit

435
00:15:40,470 --> 00:15:38,240
it's a non-collision and you can

436
00:15:42,710 --> 00:15:40,480
kind of approach from below and then you

437
00:15:44,790 --> 00:15:42,720
just make some burns to close that delta

438
00:15:46,629 --> 00:15:44,800
height and then you could come up right

439
00:15:49,189 --> 00:15:46,639
below on the r bar and then fly around

440
00:15:51,110 --> 00:15:49,199
to the v bar so i know uh back in the

441
00:15:53,269 --> 00:15:51,120
days when they were designing the

442
00:15:55,829 --> 00:15:53,279
shuttle trajectory

443
00:15:58,870 --> 00:15:55,839
they did not have that cross feed for

444
00:16:00,550 --> 00:15:58,880
the reaction control system jets and and

445
00:16:03,110 --> 00:16:00,560
it kind of ruled out any kind of an

446
00:16:05,910 --> 00:16:03,120
approach like this it just just the

447
00:16:08,230 --> 00:16:05,920
types of burns that it would require so

448
00:16:10,069 --> 00:16:08,240
with a new vehicle for the orion it was

449
00:16:12,230 --> 00:16:10,079
able to kind of open back up that trade

450
00:16:14,230 --> 00:16:12,240
space and and this was the trajectory

451
00:16:19,670 --> 00:16:14,240
they picked it's a good fuel efficient

452
00:16:25,189 --> 00:16:23,509
okay uh stephen clark

453
00:16:26,790 --> 00:16:25,199
hi just uh one more question i'm

454
00:16:28,790 --> 00:16:26,800
wondering if uh this is stephen clark

455
00:16:30,470 --> 00:16:28,800
with space flight now uh just a quick

456
00:16:31,829 --> 00:16:30,480
question on cost of wondering if you've

457
00:16:33,749 --> 00:16:31,839
had a chance to

458
00:16:35,509 --> 00:16:33,759
go over the cost since uh the question

459
00:16:37,590 --> 00:16:35,519
yesterday of the cost of the storm

460
00:16:39,509 --> 00:16:37,600
experiment thanks

461
00:16:42,629 --> 00:16:39,519
yeah thanks uh we we've been pretty

462
00:16:43,749 --> 00:16:42,639
focused um since we had our dru three

463
00:16:45,670 --> 00:16:43,759
failure

464
00:16:48,230 --> 00:16:45,680
we were pretty much working around the

465
00:16:49,990 --> 00:16:48,240
clock to get new procedures up to drew

466
00:16:52,629 --> 00:16:50,000
he had to take several different actions

467
00:16:54,470 --> 00:16:52,639
to get things powered down so i was not

468
00:16:56,790 --> 00:16:54,480
able to follow up with the project on

469
00:16:59,269 --> 00:16:56,800
getting those final cost numbers for you

470
00:17:01,110 --> 00:16:59,279
but uh and as the principal investigator

471
00:17:03,030 --> 00:17:01,120
i was sort of responsible for the

472
00:17:04,390 --> 00:17:03,040
technical success of the experiment so i

473
00:17:05,590 --> 00:17:04,400
didn't have those numbers readily

474
00:17:07,110 --> 00:17:05,600
available

475
00:17:08,949 --> 00:17:07,120
i'm sure in the days to come we'll be

476
00:17:09,829 --> 00:17:08,959
able to close the loop on that and you

477
00:17:13,029 --> 00:17:09,839
might be able to follow up with the

478
00:17:14,390 --> 00:17:13,039
orion project for a better number

479
00:17:17,029 --> 00:17:14,400
thanks

480
00:17:21,429 --> 00:17:17,039
james dean

481
00:17:23,110 --> 00:17:21,439
today gary i know we have additional

482
00:17:24,470 --> 00:17:23,120
briefings to come but just because the

483
00:17:25,990 --> 00:17:24,480
timing is a little awkward i wondered if

484
00:17:27,270 --> 00:17:26,000
you could say any more about the

485
00:17:30,830 --> 00:17:27,280
preliminary

486
00:17:33,750 --> 00:17:30,840
uh plan for for entry um

487
00:17:35,669 --> 00:17:33,760
if if it would be right to assume that

488
00:17:37,029 --> 00:17:35,679
only ksc will be

489
00:17:39,990 --> 00:17:37,039
active uh

490
00:17:41,590 --> 00:17:40,000
wednesday morning i guess and um

491
00:17:44,470 --> 00:17:41,600
the next day would be your

492
00:17:46,710 --> 00:17:44,480
your landing day if need be

493
00:17:49,029 --> 00:17:46,720
yeah the um the entry flight director

494
00:17:51,110 --> 00:17:49,039
and the program will be discussing that

495
00:17:53,029 --> 00:17:51,120
you know throughout the morning this

496
00:17:54,549 --> 00:17:53,039
morning actually laying out the strategy

497
00:17:56,549 --> 00:17:54,559
and and uh

498
00:17:58,789 --> 00:17:56,559
picking the strategy but uh i would

499
00:18:01,190 --> 00:17:58,799
suspect that that the first the first

500
00:18:03,350 --> 00:18:01,200
night will probably be cassie only and

501
00:18:05,430 --> 00:18:03,360
and uh for whatever reason we can't get

502
00:18:07,830 --> 00:18:05,440
uh lane in that first day that second

503
00:18:09,510 --> 00:18:07,840
day we'll have uh casey and edwards but

504
00:18:11,110 --> 00:18:09,520
again they'll be discussing that here

505
00:18:13,430 --> 00:18:11,120
this morning and coming up with the

506
00:18:15,350 --> 00:18:13,440
final

507
00:18:16,710 --> 00:18:15,360
i strategy it thank you

508
00:18:18,150 --> 00:18:16,720
okay i believe that's it for the phone

509
00:18:19,990 --> 00:18:18,160
bridge do we have additional questions

510
00:18:21,990 --> 00:18:20,000
here in houston

511
00:18:23,789 --> 00:18:22,000
seeing none we'll wrap up the briefing

512
00:18:26,310 --> 00:18:23,799
you can follow the progress of the

513
00:18:28,150 --> 00:18:26,320
sts-134 mission of endeavor

514
00:18:31,830 --> 00:18:28,160
and activities on the international