March 27th, 2014 - New Mar Odyssey Release 47 GRS Added Updated GRS EDR data from February 19th, 2002 to September 30th, 2013 Updated GRS AHD data from March 7th, 2002 to September 1st, 2013 Updated GRS DHD data from February 18th, 2002 to September 29th, 2013 Updated GRS AND data from January 25th, 2002 to September 1st, 2013 Updated GRS DND data from February 19th, 2002 to September 27th, 2013 See Mars Holdings https://wufs.wustl.edu/ode/odeholdings/Mars_holdings.html