    \#   epoch[^0]   Telescope         filter             exposure $[s]$   ---- ----------- ----------------- ---------------- ----------------   0    000         Tenerife 0.0m     $r_\textrm{S}$                 00   0    000         Jena 0.0m         $R_\textrm{B}$                 00   0    000         Rozhen 0.0m       $