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No. 11 - Start of Second Payload Pointing Campaign

No. 11 - Start of Second Payload Pointing Campaign

Report for Period 13 January - 19 January 2006 During the reporting period the spacecraft control has been switched back to the Cebrerosantenna. The period has been characterised by the second payload pointing campaign whichwill finish in the next reporting period.

Some tests with New Norcia and Cebreros have been conducted in order to better estimate the RF link performance.

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

MET (Day)

Date

DOY

Main Activity

66

13/01/06

013

TM bit rate test with CEB

67

14/01/06

014

Skipped

68

15/01/06

015

Uplink of pointing scenarios, recharge of batteries, TM bit rate test with CEB

69

16/01/06

016

Science Data Downlink

70

17/01/06

017

Science Data Downlink

71

18/01/06

018

Science Data Downlink

72

19/01/06

019

Science Data Downlink

At the end of the last Cebreros pass in the reporting period (DOY 019, 15:00) Venus Express was 21.9 million km from the Earth, 125.6 million km from the Sun, and 19.2 million km from Venus. The one-way signal travel time was 73 seconds.

Payload Activities

ASPERA
The instrument is off.

MAG
The instrument has been switched ON on DoY 016 and will be kept ON till the end of the pointing scenario on DoY 021.

PFS
The instrument is off.

SPICAV
The instrument has been activated on DoY 016, 017, 018 as part of the payload pointing scenario. Data analysis is on-going by the PI team.

VeRA
The USO is kept powered but muted.

VIRTIS
The instrument is off.

VMC
The instrument is off.

Future Milestones

The payload pointing scenario will finish on DoY 021 when several payload will be operated in parallel.

The coming week will then mark the start of the in-flight thermal characterisation. During this test the cold faces of the spacecraft will be exposed to the Sun to have a term of reference to validate the thermal model used on ground for analysis. This test will last 2 weeks.

Operations will then be moved again to New Norcia, as planned, to allow the completion of the work to be done in Cebreros.

Last Update: 1 September 2019
13-Aug-2020 12:09 UT

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