text: **26.**—(1) A person who is— 
  
  (a) carrying out a critical function at a space site or spacecraft controller who is responsible 
  for command and control of a launch vehicle or spacecraft for nominal operations, 
  collision avoidance or anomalies; or 
  
  (b) employed by, or contracted to provide services to, a person who operates or maintains 
  
  space situational awareness capabilities, 
  
  where they have travelled to the United Kingdom in the course of their work. 
  
  (2) For the purposes of sub-paragraph (1)— 
  
  (a) “space site” has the meaning given in paragraph 5(3) of Schedule 4 to the Space Industry 
  
  Act 2018(**c**); 
  
  (b) “space situational awareness capabilities” means the sensors, systems and analytical 
  services needed to provide time-sensitive warnings of space weather events, orbital 
  collisions, orbital fragmentations or the re-entry of man-made objects from orbit; 
  (c) “spacecraft” has the meaning given in section 2(6) of the Space Industry Act 2018; 
  (d) “spacecraft controller” means a person competent, authorised and responsible for 
  maintaining safe and secure operation of spacecraft through monitoring the status of a 
  spacecraft, issuing manoeuvre commands or controlling other aspects of the spacecraft 
  that influence its behaviour including its motion in space. 