Earlie MCC representative reported that medium altitude of the ISS was to be increased by about 2 km on January 16 .

ISS reboost maneuver was to take place on January 16 to create optimal conditions for Progress M-22M cargo vehicle launched from Baikonur on February 5 docking with the ISS. The docking is scheduled for February 6.

Maneuver had to start on Thursday at 5.54 Moscow time with the help of docked with the ISS Progress M-21M cargo vehicle thrusters. The ISS medium altitude was to be increased by 1,94 kilometers (417,3 km to the Earth).

The maneuver was necessary to create optimal ballistic conditions for Progress M-22M cargo vehicle docking with the ISS. Progress M-22M launch will take place from Baikonur spaceport at 20.23 Moscow time on February 5. The docking is scheduled for February 6, 02.24 Moscow time. At its turn Progress M-20M will undock from the ISS on February 3 and perform controlled flight during which “the Curve” scientific experiment will be accomplished onboard the spacecraft.

However today the spokesman for space industry reported that Station reboost maneuver scheduled for January 16 was shifted to January 18 because of space debris.

“The maneuver was shifted from January 16 to January 18, since the ISS entered a dangerous space debris proximity zone, – the spokesman stated.