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 Dr. Rickard Lundin, Swedish Institute of Space Science, Kiruna, Sweden.

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 and ELS 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 2008
      
• 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 - 30 June 2008
  • 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 - 30 June 2008

More information about ASPERA is on the ASPERA web site.

2 Sept 2009 Update:

New ASPERA NPI EDR and RDR data have been added to the Extended Mission 2 data set. Coverage is through the end of 2008.

25 June 2009 Update:

New ASPERA NPI EDR and RDR data have been added to the Extended Mission 2 data set.

The ELS EDR Extended Mission 1 data set has been revised.

A new ELS EDR Extended Mission 2 data set is now available.

The ELS RDR Nominal Mission data set has been revised.

New ELS RDR Extended Mission 1 and Extended Mission 2 data sets are now available.