NASA Space walk (Wed 21st Dec 2022) cancelled in last minutes as crew were all ready in the air lock.
Tracking of the space junk suddenly went from GREEN to RED duing the last few hours.
NASA Reported:
While flight control teams were preparing for today’s U.S. spacewalk, updated tracking data on a fragment of Russian Fregat-SB upper stage debris showed a close approach to station. Based on this new data, flight control teams directed the crew to stop spacewalk preparations as the ground team stepped into procedures to perform a Pre-Determined Debris Avoidance Maneuver (PDAM.)
The maneuver will use the Roscosmos Progress 81 thrusters to provide the complex an extra measure of distance away from the predicted track of the debris. Thruster firing is targeted to occur at 8:42 a.m. EST. The crew is not in any immediate danger.
Without the maneuver, it is predicted that the fragment could pass within less 1/4 mile.
Tracking of the space junk suddenly went from GREEN to RED duing the last few hours.
NASA Reported:
While flight control teams were preparing for today’s U.S. spacewalk, updated tracking data on a fragment of Russian Fregat-SB upper stage debris showed a close approach to station. Based on this new data, flight control teams directed the crew to stop spacewalk preparations as the ground team stepped into procedures to perform a Pre-Determined Debris Avoidance Maneuver (PDAM.)
The maneuver will use the Roscosmos Progress 81 thrusters to provide the complex an extra measure of distance away from the predicted track of the debris. Thruster firing is targeted to occur at 8:42 a.m. EST. The crew is not in any immediate danger.
Without the maneuver, it is predicted that the fragment could pass within less 1/4 mile.
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