Space Segment

1
Preliminary Satellite in flight status
2
Satellite activities

• Satellite main activities performed since
  separation
• First acquisition in stowed configuration
• Deployment of the PLM and 2nd SHM in deployed
  configuration
• NOM/NOM acquisition
• Gyro and thrusters calibration
• OCM in plane and out of plane
• Switch on of redundant equipment ( GYRO3, STR2)
• inertial and zenith ECM

3
Preliminary Functional chain status

• Elctrical
• Power consumption as expected including PLM
  (actual comparison to be performed on 21/12 for
  PLM heater ( worst case of eclipse))
• Eclipse and shadowing as expected
• Battery management OK optimisation of internal
  resistance to be evaluated and tested before end
  of the year
• Thermal
• PF CTA behaves as expected and temperature are
  well controlled
• Coupling between S/A and PLM arms under analysis
• In SHM configuration high temperature noticed on
  S/A due to probable specular reflexion on PLM
  arms
• In NOM configuration, low impact for all the SADM
  position
• Modelisation on going in TAS

4
Preliminary Functional chain status

• AOCS
• Nominal behaviour
• Equipment status nominal including redundant
  equipment
• Command/ control
• Nominal
• Use of memory read between two addresses to
  recover TM
• R/F
• Occultation of S-Band signal by PLM as expected

5
Satellite Ground monitoring

• On ground monitoring
• Update of the SMOS ground monitoring very few
  modifications
• Yellow and red alarms threshold for PLM
  temperature, current, SL consumption
• Update of the documentation on expected alarms
• New SDB to be released by end of CW50
• Monthly report
• Number of cycling of IHTSN/IHTSR added

6
Conclusion

• The satellite behaves as expected, no anomaly
  noticed so far
• Complete presentation of in flight assessment on
  14 January in Thales premises