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NASA's Exploration Ground Systems – We are in our planned hold at T-10 minutes
- Trouble_007 4y agoNASA's Exploration Ground Systems - @NASAGroundSys We are in our planned hold at T-10 minutes. Currently, the upper stage liquid hydrogen is 78% filled. Core stage has been topped off – both liquid hydrogen and liquid oxygen are 100% filled. The ethernet switch has been replaced and will be verified.