DSTO meaning in Academic & Science ?

Answer: What is Dual Stage To Orbit mean?

A two-stage-to-orbit (TSTO) or two-stage rocket launch vehicle is a spacecraft in which two distinct stages provide propulsion consecutively in order to achieve orbital velocity. It is intermediate between a three-stage-to-orbit launcher and a hypothetical single-stage-to-orbit (SSTO) launcher.

At liftoff the first stage is responsible for accelerating the vehicle. At some point the second stage detaches from the first stage and continues to orbit under its own power.

An advantage of such a system over single-stage-to-orbit is that the most of the dry mass of the vehicle is not carried into orbit. This reduces the cost involved in reaching orbital velocity, as much of the structure and engine mass is ejected, and a larger percentage of the orbited mass is payload mass.

An advantage over three or more stages is a reduction in complexity and fewer separation events, which reduces cost and risk of failure.

reference

Full Form	Category
Dual Stage To Orbit	Academic & Science
Data Set-up Time bus Output signal	Computing
Defense Science and Technology Organization	Governmental
District economics Statistical Officer	Governmental
Defence Science and Technology Organisation	Regional