Day of launch I-load uplink (DOLILU) and a corresponding day of launch trajectory and loads evaluation are being considered for the Constellation Program. Abort effectiveness, controllability, and ascent structural loads all improve with some of the flight software I-loads designed using current measured atmospheric conditions. While a generalized DOLILU framework has been assumed, specific implementation details have not yet been discussed in depth nor documented. Operational improvements can be leveraged from Space Shuttle experience to create a more cost-effective and streamlined process while maintaining the integrity of the results. A preliminary discussion of DOLILU design methodology is presented followed by some suggestions and implementation details for Constellation Program DOLILU operations
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