WE PROPOSE TO MONITOR BL LACERTAE WITH NUSTAR AT 3-70 KEV FOR 350 KS OVER 5 CONSECUTIVE DAYS DURING THE 2019/09/11-2019/10/07 PERIOD WHEN THE SOURCE WILL BE IN THE FOV OF TESS. THE HARD X-RAY AND OPTICAL FLUXES ARE VARIABLE ON TIMESCALES OF HOURS.
$75,808FY2020National Aeronautics and Space AdministrationNASA
Trustees Of Boston University, Boston