duplex link with spoiled beamwidth and no tracking can be used to add a range only track file with velocity estimates for netted navigation the most complex system of all is a full duplex link with mems beam steering and selective field of view fov which adds fully autonomous navigation and enhanced iff a block diagram illustrating relative navigation and guidance operations for the photonic telemetry system including a microsat cluster according to an embodiment of the present invention is shown in fig9 the system 90 includes a plurality of microsats i e preferably more than 5 small specific use spacecraft positioned in three dimensional space 92 with at least one craft having a spoiled laser transponder and at least a second craft having at least one or more slm transponders for illustration only two microsats are shown both microsats e g the j th microsat 94 and the k th microsat 96 are within relative line of sight los range of each other a plurality of queries are used to obtain data on at least one of the microsats relative to the other for example this data can include a relative los range r jk and a relative velocity estimate v jk between the j th microsat 94 and the k th micosat 96 data is processed by the cluster navigation algorithm 98 and transferred to a summer 100 and stored for future use in a spacecraft cluster 3 d position and velocity track file 102 thus the present invention can use received range range rate angle data etc which is transmitted by the spacecraft 39 s slm transponder to determine the position of one or.