Figure 1. (a) OLI VNIR bands and (b) SWIR bands out-of-band response.
The band-average out-of-band spectral responses of the Operational Land Imager (OLI) are provided in this spreadsheet and are shown in Figure 1.
The spreadsheet does not contain in-band responses because the in-band spectral response was measured in finer detail in tests specifically designed to measure the in-band spectral ranges. The in-band responses can be found here.
For more detail, see Barsi, 2014.
Barsi, J.A., Lee, K., Markham, B.L., Kvaran, G., Pedelty, J.A. (2014). “The Spectral Response of the Landsat-8 Operational Land Imager.“, Remote Sensing, pp. 10232-10251 DOI: 10.3390/rs61010232