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No. 139 - Preparing for Pericentre Lowering Manoeuvres

No. 139 - Preparing for Pericentre Lowering Manoeuvres

Report for Period 6 July to 12 July 2008All operations have been nominal during the reporting period.Between 13 July and 5 August 2008 a series of manoeuvres is performed to lower the pericentre altitude of Venus Express (see also the link on the right hand side for more details). The first pair of manoeuvres (one manoeuvre to raise the apocentre altitude and one to lower the pericentre altitude) was planned and uploaded to the spacecraft. The two manoeuvres will be executed during the next reporting period.

The table below shows a chronology of the main activities in the reporting period:

MET (Day) Date DOY Main Activity
971 06/07/08 188 Routine Operations
972 07/07/08 189 Routine Operations
973 08/07/08 190 Routine Operations.
Short Cebreros pass, due to monthly station maintenance
974 09/07/08 191 Routine Operations
975 10/07/08 192 Routine Operations
976 11/07/08 193 Routine Operations
977 12/07/08 194 Routine operations

At the end of the last Cebreros pass in the reporting period (DOY 194) Venus Express was orbiting Venus at 254.7 million km from the Earth. The one-way signal travel time was 849 seconds.

Payload Activities

ASPERA
The instrument was regularly operated as part of the routine plan.

MAG
The instrument was regularly operated as part of the routine plan.

PFS
The instrument was not operated during the reporting period.

SPICAV
The instrument was regularly operated as part of the routine plan.

VeRA
No observations were made during the reporting period.

VIRTIS
The instrument was regularly operated as part of the routine plan.

VMC
The instrument was regularly operated as part of the routine plan.

Future Milestones

  • Beginning of pericentre lowering operation, scheduled for 13 July 2008
  • Organise an S-band carrier power test before next quadrature entry, in December 2008

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Legal disclaimer
This report is based on the ESOC mission operations report, MOR #139. Please see the copyright section of the legal disclaimer (bottom of this page) for terms of use.

Last Update: 1 September 2019
5-Jul-2020 11:59 UT

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