ISEE-3 Trajectory Correction Maneuver

ISEE-3 Status Report 7 July 2014 (evening)

"If all goes according to plan on Tuesday, 8 July, we will conduct the Trajectory Correction Maneuver (TCM). This will require a much longer firing of the spacecraft's thrusters.  Our window at Arecibo opens at 12:42 pm EDT and extends until 3:29 pm EDT. If the burn is a success we will follow up with another ranging session using the DSN to get an exact measure of the spacecraft's position, trajectory, and speed.  After that we should be good to go for our lunar flyby on 10 August. After the last technical tag-up for today it looks like TCM will be 432-435 pulses fired in 7 segments with a total delta V of approximately 7 m/sec."

Keith's update: We managed to conduct the first segment but encountered problems with the second and halted the remainder of segment firings. We're looking at data and formulating a plan for tomorrow.

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This page contains a single entry by Keith Cowing published on July 8, 2014 8:38 PM.

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