Energy window Nebula Photon Flux [MeV] [ph/cm^2 s MeV] 0.75 - 1.00 (2.585 +- 0.089) E-03 1.00 - 1.25 (1.563 +- 0.054) E-03 1.25 - 1.50 (1.127 +- 0.043) E-03 1.50 - 2.00 (0.617 +- 0.020) E-03 2.00 - 2.50 (0.306 +- 0.014) E-03 2.50 - 3.00 (0.217 +- 0.010) E-03 3.00 - 4.00 (1.312 +- 0.055) E-04 4.00 - 6.00 (0.613 +- 0.022) E-04 6.00 - 8.00 (0.284 +- 0.014) E-04 8.00 - 10.0 (1.637 +- 0.082) E-05 10.0 - 15.0 (0.734 +- 0.033) E-05 15.0 - 30.0 (0.201 +- 0.013) E-05