The mission is operating as expected; ATV continues on nominal track for docking on 15 June.
The CAM (Collision Avoidance Manoeuvre) test was completed by ATV-CC on 11 June; this ensures that the vehicle can perform a CAM when so commanded either by ground or by the astronauts on the ISS during docking.
ESA’s Jean-Michel Bois, Head of the ATV Operations Team at ATV-CC, added this update in a separate note:
Note the successful manoeuvres [two of them, which provided a change in velocity – delta-V – of 1.67 m/s and 1.60 m/s] on 12 June. The
ATV’s altitude is roughly 300km now.
One ‘highlight’ of the day was coping with a predicted debris conjunction – a piece of debris was predicted to cross the ATV trajectory just between the first and second mid-term boosts.
CNES Flight Dynamics, in coordination with the NASA TOPO [Trajectory Operations Officer – responsible for planning and tracking the current location and destination of the ISS and its supporting vehicles] who provided the alert for us, had to recompute within just a few hours of the manoeuvres a new set of boost times and delta-Vs to ensure that we passed by this object at a safe distance (around 3 km in this case).
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
· All nominal
· Successful CAM test
· Progress 51P undocking (photos/videos under assessment wrt potential
impact on ATV docking)
ATV STATUS
· All subsystems nominal (one gyroscope being investigated; no impact on the mission)
ATV-CC STATUS and ATV GROUND SEGMENT
· All ATV-CC systems nominal
EXECUTED OPERATIONS
· Permanent monitoring and routine freeflight activities
· TPO manoeuvres
· OBT sessions before docking
NEXT OPERATIONS. MAIN ACTIVITIES
· June 12 : Midterm manoeuvres 13:08:32 (successful)
· June 13 : Probe pull-out 14:14:30
· June 14 : TIV manoeuvres (first boost 11:30:31)
· June 15 : S-1/2 09:38:21
· June 15 : ATV Docking at 13:46:20 UTC
· June 17 : Initial Ingress. Hatch opening 10:30:00
· June 18 : Final Ingress
· June 19 : OCS test.12:53:47
· June 23 : ATV hatch closure (preparation for EVA)
· June 25 : ATV hatch opening
· July 10 : Reboost manoeuvre (tbc)
· August 02 : First Gas Transfer (tbc)
· TBD : fuel transfer
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