|HESSI / RHESSI / SMEX-6||AIM / SMEX-9|
Below is a list of SMall EXplorer (SMEX) 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 SMEX-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|
|SMall EXplorer (SMEX)|
|SMEX-1||1992-07-03||SAMPEX / Explorer-68||energetic particle emissions from the Sun (solar-observing mission)||scientific/research|
|SMEX-2||1996-08-21||FAST / Explorer-70||plasma physics of auroral phenomena||scientific/research|
|SMEX-3||1998-12-06||SWAS / Explorer-74||chemical composition, energy balance and structure of interstellar clouds (astronomy/telescope mission)||scientific/research|
|SMEX-4||1998-04-02||TRACE / Explorer-73||three-dimensional magnetic structures which emerge through the Sun's photosphere (solar-observing mission)||scientific/research|
|SMEX-5 [failed]||1999-03-05||WIRE / Explorer-75 [failed]||survey the celestial sky in the infrared bands (astronomy/telescope mission)||scientific/research|
|SMEX-6||2002-02-05||HESSI / RHESSI / Explorer-81||image at high resolution solar flares in X-rays and gamma rays (solar-observing mission)||scientific/research|
|SMEX-7||2003-04-28||GALEX / Explorer-83||UV imaging and spectroscopic survey (astronomy/telescope mission)||scientific/research|
|SMEX-8||Canceled||SPIDR||measure the amount of hot gas found between galaxies||astronomical/telescope|
|SMEX-9||2007-04-25||AIM / Explorer-90||study of polar mesospheric clouds||scientific/research|
|SMEX-10||2008-10-19||IBEX / Explorer-91||discovering the global interaction between the solar wind and the interstellar medium (solar-observing mission)||scientific/research|
|SMEX-11||2012-06-13||NuSTAR / Explorer-93||focusing X-ray telescope in space for energies in the 8-80 keV range (astronomy/telescope mission)||scientific/research|
|SMEX-12||2013-06-28||IRIS / Explorer-94||explore the solar chromosphere (solar-observing mission)||scientific/research|
|SMEX-13||Canceled||GEMS||measure polarized X-rays||astronomical/telescope|
(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.