These data are used in the book "Computational Statistics" 
by G.H. Givens and J.A. Hoeting.

Name: mars.dat
Chapter: 11
Discussed in: Problem 11.4

Source: G. L. Tyler et al. (2004).  Mars Global Surveyor Radio Science
    Data Products.  R.A. Simpson (Ed.).  NASA Planetary Data System.
    Available from http://www-star.stanford.edu/projects/mgs/public.html

Description: Temperature profile of the Martian atmosphere, as
measured by the Mars Global Surveyor spacefcraft in 2003 using a radio
occultation technique. Data include the altitude (measured as
from the center of the planet) and atmospheric temperature (K).

Variable labels: radius = plantocentric radius (km)
                 temperature (K)
                 sigmatemperature = 1 standard deviation of the temperature