An update on ISEE-3’s resurrection
The engineers trying to resurrect the 1980s ISEE-3 spacecraft have posted an update describing what happened with yesterday’s partly successful engine burn.
The bottom line:
Thruster firings were planned to done in groupings – or “segments” – of 63 firings per segment. The first chart is annotated to show the three firing attempts. The first segment was full duration but only partially successful. The second and third attempts failed. Possible causes (under investigation) include valve malfunction and fuel supply issues.
This doesn’t sound hopeful, but stay tuned as they continue to assess the situation.
The engineers trying to resurrect the 1980s ISEE-3 spacecraft have posted an update describing what happened with yesterday’s partly successful engine burn.
The bottom line:
Thruster firings were planned to done in groupings – or “segments” – of 63 firings per segment. The first chart is annotated to show the three firing attempts. The first segment was full duration but only partially successful. The second and third attempts failed. Possible causes (under investigation) include valve malfunction and fuel supply issues.
This doesn’t sound hopeful, but stay tuned as they continue to assess the situation.