ISEE-3 project update and plans

Dennis Wingo gives an update on the ISEE-3 reboot satellite  project, including what it accomplished and what they hope to do next : ISEE-3 Post Lunar Flyby Status and Modification of Mission Goals –  denniswingo

Mission Status

Communication with the ISEE-3 satellite was successfully re-established with the goal of commanding the satellite to change its trajectory with the goal of putting it into a libration point orbit that would allow it to resume its original mission goals of collecting data for solar physics research. The trajectory change goal unfortunately could not be completed due to the failure of the onboard thrusters. This failure was apparently the result of the loss of nitrogen pressurant in the Hydrazine fuel system.

This inability to change the spacecraft’s orbit rules out the original reboot mission goals which would have provided long-term data collection from the satellite instrumentation package using modest antennas. After the orbit change attempt, the ISEE-3 Reboot Team powered on the instrumentation package and began data collection from the instruments to assess their current physical status and usefulness for any ongoing scientific mission.

We are now redefining our mission goals to obtain the maximum scientific usefulness of ISEE-3 in its new interplanetary orbit. Figure 1 shows the flyby orbit and the long-term sun centered (heliocentric) orbit.

He reviews the trajectory of the spacecraft in the coming years, the health of the spacecraft, and what sort of science might be done with it, particularly with public citizen science involvement.

What’s Next

So expect to see more from us in the very near future. After the rush of the flyby we took a bit of a break but we are moving forward with the new “ISEE-3 Interplanetary Citizen Science Mission”. As soon as we have the real time display systems and reliable ground station communications support we will start putting more data out to be seen. We cannot sufficiently express our appreciation to the ground stations that have helped us make this a reality. Arecibo, our national treasure, in Puerto Rico. The Bochum Radio Observatory in Germany, our reliable friends and the ground station that first got us interested in ISEE-3. Morehead state in Kentucky has provided crucial support for transmitting to the bird of late. And the SETI Institute has been listening in as well. We are working to increase this list, but without these folks and their dishes, this would not have happened…

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