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    NASA’s TRACERS Mission Passes Key Milestone, Advances Toward Launch

    Animated graphic showing solar wind blowing against giant magnetic bubble surrounding Earth, with two funnels in the bubble at the north and south poles

    NASA's Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites mission, or TRACERS mission, has passed a critical mission review on March 31, 2022. The mission now moves into its next phase, advancing towards its target launch readiness date of July 27, 2024. "We're excited to pass this major milestone and get one step closer to launch," …

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    Artemis I WDR Update: Go to Proceed for Tanking – Countdown Resumes

    The countdown for the wet dress rehearsal has resumed at 10:52 a.m. EDT and clocks have picked back up at T-6 hours, 40 minutes on the clock (L-7 hours, 10 minutes). A new planned T-0 of 6:02 p.m. has been established. An earlier issue with an outage with the vendor of gaseous nitrogen required for tanking preparations has been resolved. Overnight, teams …

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    Artemis I Wet Dress Rehearsal Testing Continues

    NASA is targeting Monday, April 4, to resume the Artemis I wet dress rehearsal test. The test was stopped Sunday, April 3 prior to tanking due to loss of ability to pressurize the mobile launcher using two fans. The fans are needed to provide positive pressure to the enclosed areas within the mobile launcher and …

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    Artemis I Wet Dress Rehearsal Scrub

    Teams have decided to scrub tanking operations for the wet dress rehearsal due to loss of ability to pressurize the mobile launcher. The fans are needed to provide positive pressure to the enclosed areas within the mobile launcher and keep out hazardous gases. Technicians are unable to safely proceed with loading the propellants into the …

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    Artemis I WDR Update: Go for Proceed for Tanking

    At approximately 6:45 a.m. EDT, the launch director and mission management team chair gave the “go” to begin tanking the rocket. Meteorologists with Space Launch Delta 45 said there were no weather violations for the test. All elements are powered up and teams have moved the side flame deflectors into position and completed final preparations …

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    Wet Dress Rehearsal Countdown Progressing, ICPS Powered Up

    The Artemis I launch team continues to press ahead through the wet dress rehearsal countdown. During the overnight hours after determining four lightning strikes at Launch Pad 39B would not stop the countdown from continuing,  the interim cryogenic propulsion stage (ICPS) and solid rocket boosters of the Space Launch System rocket were powered up. Shortly …

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    Weather Still Favorable for Artemis I Wet Dress Rehearsal

    Meteorologists with the U.S. Space Force Space Launch Delta 45 currently predict favorable weather conditions for tanking on April 3. Forecast for this afternoon slightly improved from yesterday. There is currently less than a 5% chance of lightning within five nautical miles of the launch pad. Weather constraints stipulate there must be less than a …

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