Isro is gearing up for a challenging experiment of controlled re-entry of a decommissioned low Earth orbiting satellite — Megha-Tropiques-1 (MT1) — on March 7. MT1 was launched on October 12, 2011, as a joint satellite venture of Isro and the French space agency, CNES, for tropical weather and climate studies.As per the space agency, an uninhabited area in the Pacific Ocean between 5°S to 14°S latitude and 119°W to 100°W longitude has been identified as the targeted re-entry zone for MT1.