We Almost Did The ISEE-3 Spin-up Burn (Update)

ISEE-3 Status 24 June 2014: We Almost Did The Spin-up Burn

"During our session with Arecibo today we came very, very close to firing the thrusters on ISEE-3 for its spin-up maneuver. But we were not able to complete the process and fire the thrusters. The spacecraft was completely configured for a thruster firing during today's pass. We reduced the number of pulses from 11 to 1 to make certain that we had the proper commands in place. If that engine firing proceeded successfully we'd follow with the remaining 10 pulses so as to spin up the spacecraft to the required rotation rate. As it happened we were unable to get confirmation on the very last command and put a halt to the procedure."

Keith's note: We have another window opening at Arecibo around 1:30 pm EDT. We'll be live tweeting at @ISEE3Reboot.

Keith's Update: Our Arecibo pass was a short one and we had some commanding issues - so no spin-up burn. Our DSN pass for ranging starts at 4:50 pm EDT - you can see ISEE-3 listed on the DSN live page.

  • submit to reddit


Kepler Communications - Aether
Baen Books - The Spacetime War by Les Johnson

Join our mailing list

Commercialization: Monthly Archives

Monthly Archives

About this Entry

This page contains a single entry by Keith Cowing published on June 25, 2014 4:30 PM.

Russian Angara to Launch Friday was the previous entry in this blog.

Hearing on NRC Human Spaceflight Report is the next entry in this blog.

Find recent content on the main index or look in the archives to find all content.