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#20
by
Ford Mustang
on 07 Feb, 2008 09:54
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Confirmation that the LH2 ECO's are WET!
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#21
by
Chris Bergin
on 07 Feb, 2008 09:56
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The SIM test is going to be the key part, coming up.
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#22
by
Ford Mustang
on 07 Feb, 2008 09:56
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NTD advised launch team that ECO's are WET, as they are interested (as well as the rest of the world). Will be using the standard LCC Criteria (3/4 GOOD ECO's).
SIM Command not started yet. Optimistic about getting 4/4 ECO's, but time will tell. We should know within an hour (generally faster here!).
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#23
by
dember
on 07 Feb, 2008 09:57
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good news is 3/4 insted of 4/4.
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#24
by
psloss
on 07 Feb, 2008 09:58
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LOX MPS chilldown is complete and into slow fill on that side now.
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#25
by
psloss
on 07 Feb, 2008 10:00
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dember - 7/2/2008 5:57 AM
good news is 3/4 insted of 4/4.
Sort of. As was noted, if the problem is somehow related to the previous behavior (i.e., the fix hypothetically didn't fix the problem), they'd have to discuss that a lot. If the circuit is down due to a larger problem (like an MDM failure), that would fit the LCC more closely. (But then that's a hypothetical MDM problem and who knows if that would be acceptable...)
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#26
by
Ford Mustang
on 07 Feb, 2008 10:05
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Confirmation that the initial fuel system checkout and calibration is complete. Three good fuel cells so far this morning. Slow fill on LH2 and LOX.
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#27
by
psloss
on 07 Feb, 2008 10:07
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George Diller (PAO) also said that for us ECO watchers, he should be getting a "heads up" from the PROP console before they begin the SIM tests on the LH2 LLCO circuits.
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#28
by
Ford Mustang
on 07 Feb, 2008 10:11
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Not 100% sure, but this looks like LOX MPS "smoke" coming from the main engines (typical during tanking and pre-flight):
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#29
by
Ford Mustang
on 07 Feb, 2008 10:12
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LOX and LH2 into Fast Fill.
5% sensor is WET.
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#30
by
psloss
on 07 Feb, 2008 10:13
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LH2 5% sensor is now WET.
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#31
by
psloss
on 07 Feb, 2008 10:15
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PAO reports that the PROP console is now beginning SIM tests.
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#32
by
Ford Mustang
on 07 Feb, 2008 10:15
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SIM command starting! Fingers crossed!
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#33
by
Chris Bergin
on 07 Feb, 2008 10:19
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SIM Test good! (per L2).
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#34
by
psloss
on 07 Feb, 2008 10:19
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George Diller did note that they are probably going to take a long look at the data...the timing of the circuit issues in the past varied to some degree. They may want to watch multiple tests before declaring things OK.
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#35
by
Ford Mustang
on 07 Feb, 2008 10:22
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Should know in about 20 minutes where we stand on this.
So far so good, as per PAO.
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#36
by
psloss
on 07 Feb, 2008 10:22
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George Diller with a concise summary: "so far, so good."
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#37
by
Chris Bergin
on 07 Feb, 2008 10:23
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LH2 ECO sensors all went DRY on SIM Command and showed good voltages.
Now, they need to continue to behave.
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#38
by
elmarko
on 07 Feb, 2008 10:24
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I've never watched a shuttle launch on NASA TV this early before, do you still get the radio loops behind it, or is it just George Diller? Tuning in at work, you see
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#39
by
psloss
on 07 Feb, 2008 10:26
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elmarko - 7/2/2008 6:24 AM
I've never watched a shuttle launch on NASA TV this early before, do you still get the radio loops behind it, or is it just George Diller? Tuning in at work, you see
NASA TV (or NASA TV-KSC) usually doesn't bring the audio up until sometime around when the crew starts getting in the orbiter.
