AO2: 
18:29 in middle of cal cycle, with cell ata 91.5, O2 sig = 10.18 - no shape or o2diff = past rail!  
18:29:20 upped to 94 torr, O2 sig down to 925 and shape/o2diff normal
18:33:40 while taxiing, CO2 = 434 on LT
was 415 WT, 360 HS, 445 LS
18:32:08 on taxi, pump on while to LT, Pfridge down to 800 just before cal done and to SA
CO2 did not seem to jump on take-off!
18:44:52 climbing out of 15 for 28 kft, calint, wtint, ltint all to 1 to get another 4 point
calint back to 50 as soon as triggered
wtint and ltint back to 3 and 4 once finished 19:03:30
19:16:30 closed VNC
19:25:20 low over FAI
20:15 CO up to 200 in Asian plume - plus around 10 ppm CO2 and 60 per meg of O2 - uncal'd gives ~ 1.25 for ratio (= China ave)
O2 HS slope is worse when following SA than when following LS (counterintuitive)  (H2O related?)
23:50:52 went to MAN, to SA, SA purge off, HS purge off to get more of Northernmost profile
~23:56:30 holding at 28 kft, went back to Auto - purging LS

MED:
- Still struggling with Box1 vs. Box2 impedance difference - adjusted Pdown and N.V. yesterday to try to get Psa and Flow to match
when a flask position is open vs. jumpered (on pos 5 and 21).  Pup 135 and Pdown 350 seemed to work OK for both boxes, and made 90/630 work for box 2
90/620 does not work as well for box1 but don't plan on using these settings for box1
For some reason 135/350 looked really bad for box1 (pos5) in preflight (jumpered gave really high flow and Psa, but magically in flight it looks fine!
- No Leaks apparent on pre-purge
- However, pre and post pre-purge, Psa changed from 830 to 870 - could be pump(s) warming up (or cooling down) or N.V. temperature effect. . . . both would affect flask pressure.
20:10 Trap T = 39.9