|GRACE / ESSP-2||SAC-D / ESSP-6|
Below is a list of Earth System Science Pathfinder (ESSP) series satellites, including launch dates and links to information on the satellites. If readers know of additional information, please contact the authors using the e-mail addresses at the bottom of this page.
Since all ESSP-series satellites have other names as well, launch covers and other postal items for these satellites are found under those other names.
|Satellite||Launch Date||Other Name||Mission or Purpose||Type/Discipline|
|Earth System Science Pathfinder (ESSP)|
|ESSP-1||Canceled||VCL||vertical structure of forests||environmental-observing|
|ESSP-2A/2B||2002-03-17||GRACE-1/2||Earth's gravity field||scientific/research|
|ESSP-3||2006-04-28||CALIPSO||vertical structure and properties of thin clouds and aerosols||environmental-observing|
|ESSP-4||2006-04-28||CloudSat||vertical cloud radar||environmental-observing|
|ESSP-5 [failed]||2009-02-24||OCO-1 [failed]||atmospheric CO2||environmental-observing|
|ESSP-6||2011-06-10||SAC-D / Aquarius||sea surface salinity||environmental-observing|
|ESSP-7||Canceled||Hydros||soil moisture and land freeze/thaw||environmental-observing|
|ESSP-5 [replacement]||2014-07-02||OCO-2||atmospheric CO2||environmental-observing|
|ESSP-EVM1||2016-12-15||CYGNSS-1/8||ocean surface winds||environmental-observing|
(The link below leads to information sources that are maintained by others. They are not part of this Website.)
Back to Un-Manned Satellite Philately.