Cluster Master Science Plan

Introduction

The Master Science Plan is an important and critical part of the process of planning Cluster science operations. It provides the strategic view of the acquisition of science data by the four Cluster spacecraft, e.g. in terms of scientific targets.

The links below provide access to a variety of information on the current and past plans

Information/Documentation

Plans for future MSP production

Overview of what the Plan provides

Previous Plans

ASCII list of Overall Plan

ASCII list of Future Plan

Notes on scheduling of BM3

High level views of the Plan

Bryant Plot of First Dayside Constellation (January/May 2001)
Bryant Plot for transition to First Tail Constellation (June/July 2001)
Bryant Plot of First Tail Constellation (June/November 2001) (New version 17 August)
Bryant Plot of Second Dayside Constellation (February/May 2002)
Bryant Plot of Second Tail Constellation (July/October 2002)
Bryant Plot of transition to Third Dayside Constellation (October/December 2002)
Bryant Plot of Third Dayside Constellation (December 2002/May 2003)
Bryant Plot of Third Tail Constellation (June/November 2003)
Bryant Plot of transition to Fourth Dayside Constellation (October 2003/January 2004)
Bryant Plot of Fourth Dayside Constellation (November 2003/June 2004)
Bryant Plot of Fourth Tail Constellation (July/October 2004)
Bryant Plot of Fifth Dayside Constellation (November 2004/June 2005)
Bryant Plot of Fifth Tail Constellation (July 2005/October 2005)
Bryant Plot of Sixth Dayside Constellation (November 2005/June 2006)
Bryant Plot of Sixth Tail Constellation (July 2006/October 2006)
Bryant Plot of Seventh Dayside Constellation (November 2006/June 2007)
Bryant Plot of Seventh Tail Constellation (June 2007/October 2007)
Bryant Plot of Eighth Dayside Constellation (November 2007/June 2008)
Bryant Plot of Eighth Tail Constellation (June 2008/October 2008)
Bryant Plot of Ninth Dayside Constellation (November 2008/June 2009)
Bryant Plot of Ninth Tail Constellation (June 2009/October 2009)
Bryant Plot of Tenth Dayside Constellation (November 2009/June 2010)
Bryant Plot of Tenth Tail Constellation (June 2010/October 2010)
Bryant Plot of Eleventh Dayside Constellation (November 2010/June 2011)
Bryant Plot of Eleventh Tail Constellation (July 2011/November 2011)
Bryant Plot of Twelfth Dayside Constellation (November 2010/June 2011)
Bryant Plot of Twelfth Tail Constellation (July 2012/November 2012)

Detailed views of the Plan

These are expanded views each showing the equivalent of two hours of local time in the precession of the Cluster orbits (local times are referenced to that at apogee). The expanded scale allows more detail to be shown, e.g. location of TDA8 periods (downlink to DSN).

Bryant Plot for 18h to 16 LT (new version 20 Dec) Bryant Plot for 17h to 15 LT (new version 20 Dec)
Bryant Plot for 16h to 14 LT (new version 20 Dec) Bryant Plot for 15h to 13 LT (new version 13 Jan)
Bryant Plot for 14h to 12 LT (new version 13 Jan) Bryant Plot for 13h to 11 LT (new version 13 Jan)
Bryant Plot for 12h to 10 LT (new version 09 Feb) Bryant Plot for 11h to 09 LT (new version 17 Mar)
Bryant Plot for 10h to 08 LT (new version 17 Mar) Bryant Plot for 09h to 07 LT (new version 17 Mar)
Bryant Plot for 08h to 06 LT (new version 16 Apr) Bryant Plot for 07h to 05 LT (new version 16 Apr)
Bryant Plot for 06h to 04 LT (new version 16 Apr) Bryant Plot for 05h to 03 LT (new version 16 Apr)

Catalogue of all Bryant Plots

See the catalogue of all operational JSOC Bryant plots

Lunar eclipses, May and June 2012

The Cluster 1, 3 and 4 spacecraft will experience lunar eclipses in May and June 2012. There will not be enough power to operate the payloads in these periods, so they will switched off as shown in the table below.

Spacecraft Payload off Payload on Notes
1 21/05/2012 02:00 21/05/2012 10:00
3 21/05/2012 03:40 21/05/2012 04:21
4 21/05/2012 03:40 21/05/2012 04:21
1 19/06/2012 13:30 19/06/2012 21:30

Attitude and orbit manoeuvres, May/July 2012

In May 2012, there will be a series of manoeuvres to adjust the attitude s of the spacecraft to keep these within operational limits with respect to the Sun. The manoeuvre times are shown below.

  • 22 May, 09:35 (sc 1)
  • 22 May, 08:50 (sc 2)
  • 22 May, 08:05 (sc 3)
  • 22 May, 07:25 (sc 4)

    As those instruments sensitive to manoeuvres must be put in safe modes around the manoeuvres, there will be no data-taking on all four spacecraft around these manoeuvres from 07:25 to 16:36 on 22 May.

    These will be followed trim/orbit drift start manoeuvres as follows:

  • 1 June, 11:06 (sc 1)
  • 1 June, 11:06 (sc 2)
  • 1 June, 11:06 (sc 3)
  • 1 June, 11:06 (sc 4)

    As those instruments sensitive to manoeuvres must be put in safe modes around the manoeuvres, there will be no data-taking on all four spacecraft around these manoeuvres from 10:06 to 12:07 on 1 June. This period is short in order to preserve existing WBD operations around the perigee of orbit 1853.

    These in turn will be followed by orbit drift stop manoeuvres as follows:

  • 28 June, 14:17 (sc 1) - no-data-taking from 13:17 to 17:30
  • 28 June, 13:49 (sc 3) - no-data-taking from 12:49 to 17:30
  • 05 July, 09:33 (sc 1) - no-data-taking from 08:33 to 16:34

    The no-data-taking periods on 28 June will end earlier than normal in order to preserve existing WBD operations. The instruments sensitive to manoeuvres will remain in their safe modes until at least 8 hours after the manoeuvre burns.


    Last updated by  Mike Hapgood ( mike.hapgood@stfc.ac.uk), 19 April 2012.