"Less than two hours after sending out a distress signal for help, engineers who worked on exactly these types of propulsion systems emerged from the digital wilderness to offer their hard-won experience. What the team learned was a mix of good and bad: solubility probably wasn't the problem impeding the satellite's thrusters. Awesome, they don't need to fix that! Boo, they only have about two or three more options of things that are fixably bad to work on. And if none of those are the problem? Then this will be a glorious, exciting, exuberant failure, and ISEE-3 will continue on its orbit about the sun, leaving us behind once more."
Keith's note: We are reworking trajectory numbers and a propulsion system repair plan this weekend. We hope to be able to implement this plan next week and then accomplish our Trajectory Correction Maneuver. Right now we still only need approximately 10 m/sec of Delta V. That will begin to rise toward the end of the month.