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| No. 236 - Start of eclipse season; Completion of Radio Science Investigations occultation campaign #11 |
Report for the period 19 June to 16 July 2011 (week 25 - week 28)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. |
| Date: 02 Aug 2011 |
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| No. 235 - Atmospheric Drag Campaign #5; Start of Radio Science Investigations Occultation Campaign #11 |
Report for the period 22 May to 18 June 2011 (week 21 - week 24)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. The fifth Atmospheric Drag Campaign was carried out during this period. Five occultations were observed for Radio Science Investigations campaign #11. |
| Date: 13 Jul 2011 |
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| No. 234 - End of Eclipse Season; Preparations for Atmospheric Drag Campaign #5 |
Report for the period 24 April to 21 May 2011 (week 17 - week 20)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities, as well as to some special tests. |
| Date: 07 Jun 2011 |
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| No. 233 - Orbital Correction Manoeuvres |
Report for the period 27 March to 23 April 2011 (week 13 - week 16)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. |
| Date: 12 May 2011 |
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| No. 232 - Start of Eclipse Season; Completion of Radio Science Investigations Occultation Campaign #10 |
Report for the period 27 February to 26 March 2011 (week 9 - week 12)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. Twelve occultations were observed for Radio Science Investigations (RSI) campaign #10. |
| Date: 12 Apr 2011 |
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| No. 231 - End of Outbound Quadrature Operations; Radio Science Investigations – Continuation of Occultation Campaign #10 |
Report for the period 30 January to 26 February 2011 (week 5 - week 8)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. Nine occultations were observed for Radio Science Investigations (RSI) campaign #10 |
| Date: 16 Mar 2011 |
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| No. 230 - Radio Science Investigations – Start of Occultation Campaign #10 |
Report for the period 2 January to 29 January 2011 (week 1 - week 4)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. Nine occultations were observed for Radio Science Investigations campaign #10. |
| Date: 15 Feb 2011 |
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| No. 229 - Start of outbound quadrature phase |
Report for the period 5 December 2010 to 1 January 2011 (week 49 - week 52)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. |
| Date: 18 Jan 2011 |
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| No. 228 – Start of eclipse season |
Report for the period 7 November to 4 December 2010 (week 45 - week 48)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. |
| Date: 22 Dec 2010 |
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| No. 227 - Atmosphere Drag Experiment |
Report for Period 10 October - 6 November 2010 (week 41 - week 44)
The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities and the fourth Atmosphere Drag Experiment campaign (ADE #4). |
| Date: 23 Nov 2010 |
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| No. 226 - Mission operations update |
Report for Period 12 September - 9 October 2010 (week 37 - week 40)
The reporting period, covering four weeks of Venus Express mission operations, was devoted primarily to routine science activities. In addition, a number of preparatory activities were carried out for the next atmospheric drag experiment campaign, and two orbit control manoeuvres were performed to lower the apocentre altitude of the spacecraft's orbit. |
| Date: 26 Oct 2010 |
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| No. 225 - End of quadrature operations |
Report for Period 15 August to 11 September 2010 (week 33 - week 36) The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities and included the last quadrature operations. The swap from high gain antenna 1 (HGA1) to HGA2 and the associated 180° flip of the spacecraft around its Z-axis were successfully executed on 15 August. On 21 August, the regular DDOR measurements were made. The quadrature phase ended on 26 August. A routine orbit control manoeuvre was performed on 28 August. The current eclipse season, which started already on 30 July, will end at the start of the next reporting period. |
| Date: 15 Sep 2010 |
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| No. 224 - Start of quadrature operations |
Report for Period 18 July to 14 August 2010 (week 29 - week 32) The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities. On 21 July the spacecraft entered a new quadrature phase that will last until 26 August. On 28 July a few anomalies were observed relating to the solid state mass memory (SSMM), which were solved by a warm restart of the SSMM. As part of the SSMM anomaly recovery a spacecraft safe mode was commanded on 30 July. After exit from the safe mode nominal operations were resumed. On 30 July another eclipse season started. |
| Date: 18 Aug 2010 |
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| No. 223 - End of Earth occultation season #9 |
Report for Period 20 June to 17 July 2010 (week 25 - week 28) The reporting period, covering four weeks of Venus Express mission operations, was devoted to routine science activities and has been nominal on the spacecraft side. The mission's ninth Earth occultation season, which started on 30 April 2010, has concluded on 11 July 2010. The regular DDOR measurements were performed on 24 June. |
| Date: 21 Jul 2010 |
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| No. 222 - End of eclipse season |
Report for Period 23 May to 19 June 2010 (week 21 - week 24) The Venus Express spacecraft and instruments continue to perform nominally. The eclipse season that started on 7 April 2010 has concluded in this reporting period. The mission's ninth Earth occultation season is ongoing and will last until 11 July 2010. |
| Date: 23 Jun 2010 |
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| No. 221 - Start of Earth occultation season #9 |
Report for Period 25 April to 22 May 2010 (week 17 - week 20)
The Venus Express spacecraft and instruments performed nominally during the reporting period. However, two occurrences of a minor anomaly with ASPERA led to the loss of part of the science data taken by the instrument on 27 April and on 7 May. On 30 April the mission's ninth Earth occultation season started, which will last until 11 July 2010. The current eclipse season, which started already on 7 April, is ongoing and will last until end May 2010. On 14 May the regular DDOR measurements were performed. |
| Date: 27 May 2010 |
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| No. 220 - Atmospheric drag experiments |
Report for Period 28 March to 24 April 2010 (week 13 - week 16)
The Venus Express spacecraft and instruments performed nominally during the reporting period. The atmospheric drag experiment (ADE) campaign #3b was performed from 11 to 16 April. Several solar array tilt experiments were carried out around the pericentre on 3 April and on the last five days of the ADE campaign #3b. On 10 April the regular DDOR measurements were made. An orbit control manoeuvre (OCM) was performed on 17 April to raise the pericentre altitude again. |
| Date: 04 May 2010 |
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| No. 219 - Mission operations update |
| Report for Period 28 February to 27 March 2010 (week 9 - week 12)
The Venus Express spacecraft and instruments performed nominally during the reporting period. The atmospheric drag experiment (ADE) campaign #3a concluded on 28 February. On 20 March the regular DDOR measurements were performed. A solar array tilt experiment was carried out on 25 March around the pericentre passage. |
| Date: 07 Apr 2010 |
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| No. 218 - Atmospheric drag experiments |
| Report for Period 31 January to 27 February 2010 (week 5 - week 8) The Venus Express spacecraft and instruments performed nominally during the reporting period. Two solar array tilting tests were successfully performed on 15 and 25 February. These were set up to validate a special solar array orientation for future atmospheric drag experiments. The last week in the reporting period saw the start of the Venus Express atmospheric drag experiment (ADE) campaign #3a, which runs from 22 to 28 February. |
| Date: 09 Mar 2010 |
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| No. 217 - End of Solar Conjunction Operations |
| Report for Period 3 January to 30 January 2010 (week 1 - week 4) The Venus Express spacecraft and instruments performed nominally during the reporting period. The solar conjunction operations phase that had started on 29 December 2009 in the previous reporting period was concluded on 22 January 2010. During this phase all instruments were off. Following the solar conjunction exit, the instruments have again nominally resumed routine science operations. |
| Date: 09 Feb 2010 |
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