Rollout is expected to begin Monday (June 6) at 12:01 a.m. EDT (0401 GMT).
Upgrades were also made to the vehicle's exterior instrumentation covers to better protect against the heat and potential storms during the rocket's two weeks awaiting testing at the pad. Infrastructure at Pad 39B also received some ahead-of-schedule maintenance in the form of increased storage capabilities for gaseous nitrogen, which the Artemis 1 team uses to purge liquid oxygen from the SLS prior to fueling operations, for safety purposes.
If all goes according to plan, the June 19 wet dress rehearsal will last about 48 hours. NASA has published a, and agency officials have voiced cautious optimism for an August liftoff, but an official target won't be finalized until the data from the dress rehearsal has been fully analyzed. Pending no further snags in the vehicle and ground systems, that launch opportunity lasts from Aug. 23 to Sept. 6, in case you were thinking of making any plans for Labor Day weekend.
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