Apollo LM Ascent: "Zero POS/NEG Cells"?

Wedge313

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Hi,

Running through the Apollo 14 LM Ascent. A few questions:

On the flight plan, at about 140:50 it indicates two uplinks to the LM, the CSM S.V. at liftoff and "Zero POS/NEG Cells" . What should I do for the "Zero POS/NEG Cells" uplink?

Also, another V47E 414+1 question: After I do the alignment before liftoff, I've got my mode select in AGS and my altitude on the tape reads 64 ft. I updated the RLS and checked the DEDA 231 values, they look ok (?) but what could I have done wrong here to create this error?

Thanks
 

rcflyinghokie

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On the flight plan, at about 140:50 it indicates two uplinks to the LM, the CSM S.V. at liftoff and "Zero POS/NEG Cells" . What should I do for the "Zero POS/NEG Cells" uplink?
We honestly haven't figured out what this one is! We have many theories but have yet to pinpoint it. You can safely skip for now of course.
Also, another V47E 414+1 question: After I do the alignment before liftoff, I've got my mode select in AGS and my altitude on the tape reads 64 ft. I updated the RLS and checked the DEDA 231 values, they look ok (?) but what could I have done wrong here to create this error?
This is totally normal behavior from the AGS from my experience with liftoff. There will be slight divergence especially since you are on the surface and 231 might not be perfectly zero for where you are on the moon.
 
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