The Earth Observing System (EOS) is a program of NASA comprising a series of artificial satellite missions and scientific instruments in Earth orbit designed for long-term global observations of the land surface, biosphere, atmosphere, and oceans of the Earth. The satellite component of the program was launched in 1997. The program is centerpiece of NASA's Earth Science Enterprise (ESE). NASA Logo Listen to this article · (info) This audio file was created from the revision dated 2005-09-01, and does not reflect subsequent edits to the article. ... For other uses, please see Satellite (disambiguation) A satellite is an object that orbits another object (known as its primary). ... Earth, also known as the Earth, Terra, and (mostly in the 19th century) Tellus, is the third-closest planet to the Sun. ... In physics, an orbit is the path that an object makes, around another object, whilst under the influence of a source of centripetal force, such as gravity. ... The biosphere is that part of a planets outer shell—including air, land, and water—within which life occurs, and which biotic processes in turn alter or transform. ... Layers of Atmosphere (NOAA) Earths atmosphere is the layer of gases surrounding the planet Earth and retained by the Earths gravity. ... Ocean (from Okeanos, a Greek god of sea and water; Greek ωκεανός) covers almost three quarters (71%) of the surface of the Earth, and nearly half of the worlds marine waters are over 3000 m deep. ... 1997 is a common year starting on Wednesday of the Gregorian calendar. ...

Mission list with launch dates

• SeaWiFS - August 1, 1997
• TRMM - November 27, 1997
• Landsat 7 - April 15, 1999
• QuikScat - June 19, 1999
• Terra - December 18, 1999
• ACRIMSAT - December 20, 1999
• NMP/EO-1 - November 21, 2000
• Jason-1 - December 7, 2001
• Meteor 3M-1/Sage III - December 10, 2001
• Gravity Recovery and Climate Experiment - March 17, 2002
• Aqua - May 4, 2002
• ADEOS II/Midori II - December 12, 2002
• ICESat - January 12, 2003
• SORCE - January 25, 2003
• Aura - July 15, 2004
• CloudSat - October 2005
• CALIPSO - October 2005
• Hydros - June 2006
• NPP - October 2006
• OCO - July 2007
• ESSP - August 2008
• Aquarius - September 2008
• NMP/EO-3 - to be determined

SeaWiFS stands for Sea-viewing Wide Field-of-view Sensor. ... August 1st is the 213th day of the year in the Gregorian Calendar (214th in leap years), with 152 days remaining. ... 1997 is a common year starting on Wednesday of the Gregorian calendar. ... November 27 is the 331st day (332nd on leap years) of the year. ... 1997 is a common year starting on Wednesday of the Gregorian calendar. ... Landsat 7 is the latest satellite of the Landsat program. ... April 15 is the 105th day of the year in the Gregorian calendar (106th in leap years). ... 1999 is a common year starting on Friday Anno Domini (or the Current Era), and was designated the International Year of Older Persons by the United Nations. ... June 19 is the 170th day of the year (171st in leap years) in the Gregorian Calendar, with 195 days remaining. ... 1999 is a common year starting on Friday Anno Domini (or the Current Era), and was designated the International Year of Older Persons by the United Nations. ... Terra (EOS AM-1) is a multi-national NASA scientific research satellite in orbit around the Earth. ... December 18 is the 352nd day of the year (353rd in leap years) in the Gregorian Calendar. ... 1999 is a common year starting on Friday Anno Domini (or the Current Era), and was designated the International Year of Older Persons by the United Nations. ... December 20 is the 354th day of the year (355th in leap years) in the Gregorian calendar. ... 1999 is a common year starting on Friday Anno Domini (or the Current Era), and was designated the International Year of Older Persons by the United Nations. ... NASAs New Millennium program is focused on engineering validation of new technologies for space applications. ... November 21 is the 325th day of the year (326th in leap years) in the Gregorian Calendar. ... This article is about the year 2000. ... The Jason 1 satellite altimeter is a science project to measure the ocean surface topography, and the successor to the TOPEX/Poseidon satellite. ... December 7 is the 341st day (342nd on leap years) of the year in the Gregorian calendar. ... 2001: A Space Odyssey. ... The Meteor craft are weather observation satellites launched by the USSR. The Meteor satellites were designed to monitor atmospheric and sea-surface temperatures, humidity, radiation, sea ice conditions, snow-cover, and clouds. ... December 10 is the 344th day (345th in leap years) of the year in the Gregorian calendar. ... 2001: A Space Odyssey. ... The goal of the Gravity Recovery And Climate Experiment (GRACE) space mission is to obtain accurate global and high-resolution determination of both the static and the time-variable components of the Earths gravity field. ... March 17 is the 76th day of the year in the Gregorian Calendar (77th in Leap years). ... 2002 is a common year starting on Tuesday of the Gregorian calendar. ... Aqua (EOS PM-1) is a multi-national NASA scientific research satellite in orbit around the Earth, studying the precipitation, evaporation, and cycling of water. ... May 4 is the 124th day of the year in the Gregorian calendar (125th in leap years). ... 2002 is a common year starting on Tuesday of the Gregorian calendar. ... December 12 is the 346th day (347th in leap years) of the year in the Gregorian calendar. ... 2002 is a common year starting on Tuesday of the Gregorian calendar. ... ICESat (Ice, Cloud, and land Elevation Satellite), part of NASAs Earth Observing System, is a satellite mission for measuring ice sheet mass balance, cloud and aerosol heights, as well as land topography and vegetation characteristics. ... January 12 is the 12th day of the year in the Gregorian Calendar. ... 2003 is a common year starting on Wednesday of the Gregorian calendar. ... January 25 is the 25th day of the year in the Gregorian Calendar. ... 2003 is a common year starting on Wednesday of the Gregorian calendar. ... Aura spacecraft Aura is a multi-national NASA scientific research satellite in orbit around the Earth, studying the Earths ozone, air quality and climate. ... July 15 is the 196th day (197th in leap years) of the year in the Gregorian Calendar, with 169 days remaining. ... 2004 is a leap year starting on Thursday of the Gregorian calendar. ... 2005 is a common year starting on Saturday of the Gregorian calendar. ... 2005 is a common year starting on Saturday of the Gregorian calendar. ... 2006 is a common year starting on Sunday of the Gregorian calendar. ... 2006 is a common year starting on Sunday of the Gregorian calendar. ... 2007 is a common year starting on Monday of the Gregorian calendar. ... Leap year starting on Tuesday // Predicted events January-June January 15 - NASAs MESSENGER spacecraft makes the first of three flybys of Mercury. ... Leap year starting on Tuesday // Predicted events January-June January 15 - NASAs MESSENGER spacecraft makes the first of three flybys of Mercury. ... NASAs New Millennium program is focused on engineering validation of new technologies for space applications. ...

External link

• EOS Homepage at NASA