Jess (falconry) chase something it shouldn't, and less to keep the bird from getting away, as falconry birds are routinely (and as part of the sport) set free—the bond between bird and falconer serves as a much better leash than any leather or rope ever will; however, it is not always desirable that a bird be able to take flight at its own whim, and both on the glove and on the perch, jesses help ensure this. During hunting season (small game season for North American falconers), jesses are generally worn all season in the mews, and are often removed for the
Space tether missions launch lock trouble of the tether reel mechanism." A follow-on Space Tethered Autonomous Robotic Satellite, STARS-II, Iaunched on 27 February 2014 as a secondary payload aboard an H-2A rocket. The 9-kg student satellite flew a 300-metre (980 ft) electrodynamic tether made from ultra-thin wires of stainless steel and aluminium. The mission completed after two months and deorbited on 26 April 2014. One objective of this program was to demonstrate possible technology for de-orbiting space debris. The experiment was only partially successful, and tether deployment could not be confirmed. The orbit decayed from 350 km to 280 km in 50 days,