An architecture for field programmable sequential embryonic cell is proposed. The field of embryonics is inspired from biological processes in the sense that the circuit growth and its operation will be decided by its stored genome data. While in biological process the same is decided by DNA decoding. The end objective of embryonics is the design of highly robust systems with inherent properties that are usually associated with the living world, self repair and self replication.The embryonic cell architecture proposed in this paper is evolved from the concept of cloning used by biological cell to grow a bigger organism. A full adder and a multiplier circuit evolution is simulated in earlier work and verified by results. This paper is about the extension of the embryonic cell architecture for sequential logic. A novel sequential cell architecture is designed and an exemplary counter circuit is simulated using verilog. The embryonic cell architecture automation for larger functional circuit can be done using genetic algorithm approach in the future.

AstroSat is India's first mission dedicated to space-based Astronomy and carries a complement of instruments sensitive over a wide spectral region covering visible, ultraviolet, soft X-ray and hard X-ray bands. The spacecraft platform provides the required stability, pointing, power, thermal control, and interface requirements. Among the critical functions of the Attitude and Orbit Control System (AOCS) were, manoeuvre the spacecraft from one target source to another in an optimal way while avoiding the sun, compensate for the rotational disturbance torque created by the scanning of the SSM payload on the other payloads, primarily the UVIT payload, provide for calibration of all the payloads, which involved manoeuvring through 2-dimensional target patterns. All the above novel control functions, along with the routine house-keeping operations, were designed, developed, and tested extensively on ground, before declaring them as flight-worthy. The payload performance and the resulting science are a testimony to the excellent performance of the on-board Control System.

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