MARS PHOENIX LANDER ASE (Atmospheric Structure Experiment) DATA PAGE
Mars Phoenix Lander - Derived Profiles of Density, Pressure, and Temperature
To the left is shown the ATMOSPHERIC TEMPERATURE PROFILE (as a function of altitude) and the +-1 σ uncertainties derived from the acceleration measurements obtained during the Phoenix Lander's Entry, Descent, and Landing on May 25, 2008.
Atmospheric Density and Pressure profiles were also derived from the EDL accelerometer measurements. In fact, Density is the primary derived quantity. Pressure is derived via vertical integration of the Density, and Temperature is then derived via application of the Ideal Gas Law to the derived Density and Pressure values.
All of these quantities: the derived Density, derived Pressure, and derived Temperature profiles, as well as the 1-σ errors, are provided at 1-kilometer vertical resolution altitude intervals in the PHXCOMPACT.TAB ASCII file in the DATA directory within the Mars Phoenix ASE EDR data archive phxase_0002.
The data presented above are provided at 1-km altitude increments. The enhanced vertical (and time) resolution data set of derived Entry, Descent, and Landing variables (altitude, density, pressure, temperature) and other relevant measurements is provided in the PHXPROFILES.TAB ASCII data file which is located within the DATA directory within the Mars Phoenix ASE RDR data archive phxase_002. The contents of PHXCOMPACT.TAB file are derived from the contents of the PHXPROFILE.TAB file as described within the DATASET.CAT file located in the CATALOG folder within the phxase_0002 archive.
PDS: The Planetary Atmospheres Node
