N

At the SpaceOps2014 Conference NASA presented its Deep Space Atomic Clock (DSAC) mission with the goal to develop a small, highly stable mercury ion atomic clock with an Allan deviation of most 1e-14 at one day. Potential deep space applications of DSAC are presented in [|AIAA 2014-1856]. [|AIAA-2016-2468] At the 2016 conference flight dynamics operational experiences on GALILEO were presented: CNES and ESOC Flight Dynamics Operational Experience on GALILEO First Nominal FOC Launch and Fine Positioning Activities [|AIAA 2016-2427] discussed the orbit **transfers** for DAW's CERES operatiosn: Orbit Transfers for Dawn’s Ceres Operations: Navigation and Mission Design Experience at a Dwarf Planet.
 * Navigation**

**Near Earth Objects (NEO & LEO)** The 2009 Augustine Committee review of U.S. human spaceflight plans cited Near-Earth Objects (NEOs) as promising, practical astronaut destinations. These astronaut expeditions beyond the Moon offer dramatic next steps toward economic opportunity in Earth-Moon space, and the eventual exploration of Mars and beyond. The current status is discussed in paper [|AIAA 2010-2350] LEO object tracking was presented at the 2016 Conference: [|AIAA 2016-2520] Performance Analysis of LEO object Tracking Using Mono-static And Bi-static Radar

NASA has identified a standardized, heterogeneous wireless mesh network as a key technology for future human and robotic space exploration to be used for space proximity and surface applications. Test results were presented in SpaceOps2014 paper [|AIAA 2014-1600]. The SpaceOps2014 paper [|AIAA 2014-1822]describes the architecture and the operations concept of an EDRS (European Data Relay Satellite) Feeder Link from Antarctic Latitudes (EFAL) to improve the near real time delivery of high rate data from satellites in polar orbit. The [|AIAA 2014-1829] paper describes security standards for space-terrestrial internetworks. It presents the JHU/APL work to develop security standards for end-to-end overlay internetworks utilizing Delay-Tolerant Netwroking Bundel Protocol (BP).
 * Networks **