Sungrazer is the second book in Jay Posey’s Outriders series.
The United States may be just one part of the pole-to-pole United American Federation, but Americans still have their own covert programs. One of them is SUNGRAZER, a stealth satellite orbiting ten million kilometers from Mars. SUNGRAZER is self-contained and self-directed. It collects useful data re the Martian colonies for the US; it can also deliver between fifteen to three hundred kinetic strikes, strikes ranging from simple block-busters to city killers. Which would terrify the Martians if they knew about it.
A decade into its long term mission, SUNGRAZER vanishes from American ken. Someone has taken control of the US asset, sending it off in a direction the Americans cannot detect, for a purpose about which they can only speculate.