Table 1. Parameter values.

Symbol	Meaning	Estimate and value used	Source
l max	Maximum length of airineme	250 μm	Figure 3—figure supplement 1
$v$	Velocity of airineme growth	4.5 μm (1.4–12 μm, N = 929)	Eom et al., 2015
d targ	Distance to target cell	51 μm (33–84 μm, N = 70)	Eom et al., 2015
r targ	Target cell radius	15–25 μm	Ryu et al., 2016
$D_{\theta }$	Angular diffusion	${\displaystyle 0.1838{{\displaystyle \text{rad}}}^2/{\displaystyle \text{min}}}$	Estimated here