"4U 1954+31"
  E(keV)    dE(keV)   F(ph/(cm^2.s.keV))   Error(1 sigma)
   31.50      4.75        8.39e-05        6.26e-06
   42.75      6.50        2.54e-05        3.32e-06
   57.75      8.50        7.97e-06        4.89e-06
   78.00     11.75        2.13e-17        2.03e-06