The European Space Agency
Mars Express: ASPERA

The ASPERA Energetic Neutral Atoms Analyser studies how the solar wind interacts with the Martian atmosphere to throw light on the mechanisms by which water vapor and other gases could have escaped from Mars in the past. The instrument uses a technique known as energetic neutral atom imaging to visualize the charged and neutral gas environments around Mars. The ASPERA Principal Investigator is Mats Holmström, Swedish Institute of Space Physics (IRF), matsh@irf.se.

The primary source for ASPERA data is the ESA Planetary Science Archive.

Through a cooperative agreement between ESA and NASA, the PDS Geosciences Node and the PDS PPI Node are hosting copies of the ASPERA data archive.

• Copy of ASPERA NPI, ELS, and IMA Data at the PDS PPI Node (UCLA)
  
• Copy of ASPERA NPI raw (EDR) and calibrated (RDR) data at the PDS Geosciences Node
  • Raw (EDR) and Calibrated (RDR) Data
    • Nominal Mission, 5 Jan 2004 - 31 Dec 2005
    • Extended Mission 1, 1 Jan 2006 - 30 Sep 2007
    • Extended Mission 2, 1 Oct 2007 - 31 Dec 2009
    • Extended Mission 3, 1 Jan 2010 - 31 Dec 2012
    • Extended Mission 4, 1 Jan 2013 - 31 Dec 2014
    • Extended Mission 5, 1 Jan 2015 - 31 Dec 2016
    • Extended Mission 6, 1 Jan 2017 - 31 Dec 2018
    • Extended Mission 7, 1 Jan 2019 - 30 Jun 2019
      
• Copy of ASPERA ELS Data at the PDS Geosciences Node
  • Raw (EDR) Data
    • EDR Nominal Mission, 5 Jan 2004 - 31 Dec 2005
    • EDR Extended Mission 1, 1 Jan 2006 - 30 Sep 2007
    • EDR Extended Mission 2, 1 Oct 2007 - 31 Dec 2009
    • EDR Extended Mission 3, 1 Jan 2010 - 31 Dec 2012
    • EDR Extended Mission 4, 1 Jan 2013 - 31 Dec 2014
    • EDR Extended Mission 5, 1 Jan 2015 - 31 Dec 2016
    • EDR Extended Mission 6, 1 Jan 2017 - 31 Dec 2018
    • EDR Extended Mission 7, 1 Jan 2019 - 30 Jun 2019
  • Calibrated (RDR) Data
    • RDR Nominal Mission, 5 Jan 2004 - 31 Dec 2005
    • RDR Extended Mission 1, 1 Jan 2006 - 30 Sep 2007
    • RDR Extended Mission 2, 1 Oct 2007 - 31 Dec 2009
    • RDR Extended Mission 3, 1 Jan 2010 - 31 Dec 2012
    • RDR Extended Mission 4, 1 Jan 2013 - 31 Dec 2014
    • RDR Extended Mission 5, 1 Jan 2015 - 31 Dec 2016
    • RDR Extended Mission 6, 1 Jan 2017 - 31 Dec 2018
    • RDR Extended Mission 7, 1 Jan 2019 - 30 Jun 2019
• Copy of ASPERA IMA data at the PDS Geosciences Node
  • Raw (EDR) data
    • EDR Nominal Mission, 23 Jun 2003 - 31 Dec 2005
    • EDR Extended Mission 1, 1 Jan 2006 - 30 Sep 2007
    • EDR Extended Mission 2, 1 Oct 2007 - 31 Dec 2009
    • EDR Extended Mission 3, 1 Jan 2010 - 31 Dec 2012
    • EDR Extended Mission 4, 1 Jan 2013 - 31 Dec 2014
    • EDR Extended Mission 5, 1 Jan 2015 - 31 Dec 2016
    • EDR Extended Mission 6, 1 Jan 2017 - 31 Dec 2018
    • EDR Extended Mission 7, 1 Jan 2019 - 30 Jun 2019
  • Derived (DDR) data
    • Number Flux (Holmstrom et al.)
      • DDR Extended Mission 1, (1 Jan 2007 - 1 Sep 2007)
      • DDR Extended Mission 2, (1 Oct 2007 - 31 Dec 2009)
      • DDR Extended Mission 3, (1 Jan 2010 - 31 Dec 2012)
      • DDR Extended Mission 4, (1 Jan 2013 - 31 Dec 2014)
      • DDR Extended Mission 5, (1 Jan 2015 - 31 Dec 2016)
      • DDR Extended Mission 6, (1 Jan 2017 - 31 Dec 2018)
      • DDR Extended Mission 7, (1 Jan 2019 - 31 Dec 2020)
      • DDR Extended Mission 8, (1 Jan 2021 - 31 Dec 2022)
    • Moments (Holmstrom et al.)
      • DDR Extended Mission 1, (1 Jan 2007 - 1 Sep 2007)
      • DDR Extended Mission 2, (1 Oct 2007 - 31 Dec 2009)
      • DDR Extended Mission 3, (1 Jan 2010 - 31 Dec 2012)
      • DDR Extended Mission 4, (1 Jan 2013 - 31 Dec 2014)
      • DDR Extended Mission 5, (1 Jan 2015 - 31 Dec 2016)
      • DDR Extended Mission 6, (1 Jan 2017 - 31 Dec 2018)
      • DDR Extended Mission 7, (1 Jan 2019 - 31 Dec 2020)
      • DDR Extended Mission 8, (1 Jan 2021 - 31 Dec 2022)
• Moments (Ramstad et al.)
  • Nominal Mission through Extended Mission 6,
    (4 Apr 2004 - 8 Nov 2018)

More information about ASPERA is on the ASPERA web site.

July 9, 2024.

New derived IMA data have been released, with coverage through December 31, 2022. 

July 1, 2024.

New derived IMA data have been released, with coverage through December 31, 2018, and December 31, 2014, respectively. 

June 6, 2024.

New derived IMA data have been released, with coverage from January 1, 2010 through December 31, 2012. 

May 17, 2024.

New derived IMA data have been released, with coverage from January 1, 2007 through December 31, 2009. 

April 8, 2020.

New raw IMA data have been released, with coverage through June 30, 2019. 

March 23, 2020.

New NPI raw and calibrated data have been released, with coverage through June 30, 2019.

February 28, 2020.

New ELS raw and calibrated data have been released, with coverage through June 30, 2019.

October 23, 2019.

New ELS raw and calibrated data have been released, with coverage through December 31, 2018.

September 5, 2019.

New NPI raw and calibrated data have been released, with coverage through December 31, 2018.

September 4, 2019.

New raw IMA data have been released, with coverage through December 31, 2018. 

June 24, 2019.

New raw IMA data have been released, with coverage through June 30, 2018. 

June 5, 2019.

A new derived IMA data set has been released, with coverage from April 14, 2004 through November 8, 2018. 

February 1, 2019.

New ELS raw and calibrated data have been released, with coverage from January 1, 2017, through June 30, 2018.

January 14, 2019.

New NPI raw and calibrated data have been released, with coverage from January 1, 2017, through June 30, 2018.

August 24, 2018.

New raw IMA data and raw and calibrated NPI data have been released, with coverage through December 31, 2017. 

 July 27, 2018.

New ASPERA ELS raw and calibrated data have been released, with coverage through December 31, 2017. 

April 11, 2018.

New NPI raw and calibrated data have been released, with coverage from January 1, 2017, through June 30, 2017.

28 March 2018:

New raw and calibrated ELS and raw IMA data through June 2017 have been posted.

9 November 2017:

New raw and calibrated ELS, raw and calibrated NPI, and raw IMA data through December 2016 have been posted.

 30 October 2017:

New raw and calibrated ELS, raw and calibrated NPI, and raw IMA data through June 2016 have been posted.

8 September 2016:

New raw and calibrated ELS, raw and calibrated NPI, and raw IMA data through December 2015 have been posted.

 16 March 2016:

New raw and calibrated ELS, raw and calibrated NPI, and raw IMA data through May 2015 have been posted.

11 September 2015:

New raw IMA and NPI data through December 2014 have been posted.

31 August 2015:

New raw and calibrated ELS data through December 2014 have been posted.

3 March 2015:

New raw ELS, IMA and NPI data, and calibrated ELS data, through June 2014 have been posted.

13 November 2014:

New IMA data through December 2013 have been posted.

4 September 2014:

New raw and calibrated NPI and ELS data through December 2013 have been posted.

27 March 2014:

New NPI, ELS, and IMA data through June 2013 have been posted.

31 October 2013:

New IMA data through December 2012 have been posted.

11 September 2013:

New IMA data through June 2012 have been posted.

20 August 2013:

New ELS and NPI data through December 2012 have been posted.

24 July 2013:

New IMA EDR data through December 2011 have been posted.

7 June 2013:

New IMA EDR data through June 2011 have been posted.

28 May 2013:

New IMA EDR data through December 2010 have been posted.

3 May 2013 Update:

New IMA EDR data through June 2010 and new NPI EDR and RDR data through June 2012 have been posted.

12 Apr 2013 Update:

New ELS EDR and RDR data have been posted for Extended Mission 3, with coverage through June 2012.

11 Feb 2013 Update:

New data have been posted for IMA Extended Mission 2 through 31 Dec 2009..

2 Oct 2012 Update:

New data have been posted for IMA Extended Mission 2 through 30 Jun 2008.

 6 Sep 2012 Update:

New data have been posted for IMA Extended Mission 2 through 31 Dec  2007.

15 Aug 2012 Update:

New data have been posted for ELS Extended Mission 3 through 30 Apr 2012, for NPI Extended Mission 3 through 31 Oct 2011, and for IMA Extended Mission 1 through 30 Sep 2007.

8 Jun 2012 Update:

New ASPERA IMA data through 30 June 2007 have been posted for the EDR Extended Mission 1 data set.

30 Mar - 3 Apr 2012 Update:

New ASPERA ELS data through 30 June 2011 have been posted for the EDR and RDR data sets. The first ASPERA IMA EDR Extended Mission 1 data have been posted, covering January through June 2006.

28 Feb - 8 Mar 2012 Update:

New ASPERA NPI data through 30 June 2011 have been posted for the EDR and RDR data sets.

New ASPERA IMA EDR data through 31 Dec 2005 have been posted.

15 Sep 2011 Update:

New ASPERA NPI and ELS data through 31 Dec 2010 have been posted for the EDR and RDR data sets. IMA EDR data through 30 Jun 2005 have been posted.

31 May 2011 Update:

New ASPERA IMA EDR data from 1 Jul 2004 to 31 Dec 2004 have been posted.

10 May 2011 Update:

New ASPERA IMA EDR data from 23 Jun 2003 to 30 Jun 2004 have been posted. These are the first IMA data delivered from ASPERA.

21 Apr 2011 Update:

New ASPERA ELS RDR data have been posted. These data are from Extended Mission 3. Coverage is 1 Jan 2010 through 30 Jun 2010.

4 Feb 2011 Update:

New ASPERA NPI EDR and RDR data and ASPERA ELS EDR data have been posted. These data are from Extended Mission 3. Coverage is 1 Jan 2010 through 30 Jun 2010.