Mission report 6 September

Quick update on ATV-4: Successful reboost to the ISS on 31 August; final O2 transfer to station on 5 September and, today, air transfer today and ATV configured for the Soyuz thruster test.

Japanese HTV-4 unmanned cargo spacecraft, backdropped against a land mass on Earth, following its unberthing but just prior to its release from the orbital outpost on 4 September 2013. Credit: NASA

Note as always: All dates/timings below are forecast only and are subject to change as this is a continuing, dynamic mission. Time below indicated in UTC.

GENERAL STATUS

• Successful reboost on 31 August and final O2 transfer on 05 Sept
• ATV nominal

ATV STATUS

• Attached dormant mode,

ATV-CC STATUS and ATV GROUND SEGMENT

• All ATV-CC systems nominal
• ATV monitoring and routine attached activities

CARGO and FUEL STATUS

• Dry cargo : 2 489kg /100% transferred
• Accepted trash : 1234kg
• Accepted liquid waste : 328 l
• Water : 564 Kg /100% transferred
• Air (2 tanks) : 33.4kg available (transferred 33kg/50%)
• Oxygen (1 tank): 33.3kg/100% transferred
• Propellant : used 1177kg, available for ISS supports : 2 308kg
• Refuelling propellant : initial 860kg, 100% transferred

EXECUTED OPERATIONS

• 30 August : Air transfer (around 14kg)
• 31 August : Reboost 0.48m/s
• 03 September: ATV-05  ATVCC-Bremen  SVT-1 successful
• 04 September: Liquid waste transfer
• 05 September: O2 final transfer (fan ON)
• 05 September: Liquid waste transfer
• 06 September: ATV in configuration for Soyuz thruster test

NEXT OPERATIONS. MAIN ACTIVITIES

• 06 September: Air transfer
• 10 September: 34S undocking
• 12 September: Reboost  (bu 14Sept) 0.47m/s
• 13 September: Air transfer
• 19 September: Air transfer
• 19 September: Liquid waste transfer tbc
• 22 September: Orbital D1 berthing
• 25 September: ISS attitude change
• 26 September: 36 docking (bu 27/28).  ISS attitude change
• 02 October: Reboost (placeholder. 2.34m/s, bu 04Oct)
• 22 October: Orbital D1 unberthing